Merge pull request 'feat: update Docker configuration and environment handling' (#10) from dev into master

Reviewed-on: https://gitea.fernandovideira.com/FernandoJVideira/velox-bot/pulls/10

.dockerignore

@@ -0,0 +1,7 @@
+.git
+.gitignore
+.env
+*.md
+Dockerfile
+docker-compose*.yml
+.dockerignore

Dockerfile

@@ -0,0 +1,21 @@
+# Build stage
+FROM golang:1.26.1-alpine AS builder
+
+WORKDIR /app
+
+COPY go.mod go.sum ./
+RUN go mod download
+
+COPY . .
+RUN CGO_ENABLED=0 GOOS=linux go build -o /velox-bot .
+
+# Run stage
+FROM alpine:3.19
+
+RUN apk add --no-cache ca-certificates tzdata
+
+WORKDIR /app
+
+COPY --from=builder /velox-bot .
+
+ENTRYPOINT ["./velox-bot"]

README.md

@@ -10,6 +10,12 @@ It currently includes:
 - Scheduling (1:1 sessions with DM invites + reaction-based accept/decline/reschedule)
 - Projects (list/create projects + helpers)
 - Music (Lavalink-powered `/play`, `/queue`, `/volume`)
+- Twitch live notifications (per-guild `/config` setup)
+- Welcome messages, DMs, and default role assignment (per-guild `/config` setup)
+- Focused moderation tools (`/moderation purge|timeout|untimeout|kick|ban|unban|slowmode`)
+- Server logging system (edits/deletes/joins/leaves/roles/ban/kick/mod actions)
+
+When the bot is added to a new server for the first time, toggleable systems are defaulted to **disabled** and a setup DM is sent to the inviter (or server owner fallback) with enable instructions.
 
 ## Requirements
 
@@ -34,6 +40,10 @@ Optional (music):
 - `LAVALINK_HOST`: Lavalink WebSocket/HTTP host (depends on your Lavalink setup)
 - `LAVALINK_PASSWORD`: Lavalink password
 
+Optional (Twitch live notifications):
+
+- `TWITCH_CLIENT_ID`: Twitch Client ID used to query live status
+
 ## Database setup
 
 If you use the compose file:
@@ -90,6 +100,28 @@ just down    # stop postgres
   - `/projects list`, `/projects create`, `/projects add-helper`
 - **Music** (requires **DJ** role)
   - `/play`, `/queue`, `/volume`
+- **Moderation** (focused + practical)
+  - `/moderation purge amount:<1-100>` — Fast recent message cleanup (**Manage Messages**)
+  - `/moderation timeout user:@someone duration:<10m|1h|...> [reason]` — Temporary member timeout (**Moderate Members**)
+  - `/moderation kick user:@someone [reason]` — Kick member (**Kick Members**)
+  - `/moderation ban user:@someone [delete_days] [reason]` — Ban member (**Ban Members**)
+  - `/moderation unban user_id:<id> [reason]` — Unban by user ID (**Ban Members**)
+  - `/moderation untimeout user:@someone [reason]` — Remove timeout (**Moderate Members**)
+  - `/moderation slowmode channel:#channel seconds:<0-21600>` — Control channel flood (**Manage Channels**)
+- **Twitch live notifications** (**Manage Server**)
+  - `/config addstreamer username:<twitch-name>` — Add a streamer for notifications
+  - `/config removestreamer username:<twitch-name>` — Remove a streamer
+  - `/config settwitchnotificationchannel channel:#channel` — Channel for live pings
+- **Welcome / onboarding** (**Manage Server**)
+  - `/config setwelcomechannel channel:#channel` — Channel for welcome messages
+  - `/config setwelcomemessage message:"..."` — Server welcome template (supports `{user}`, `{server}`)
+  - `/config setwelcomedm message:"..."` — DM welcome template (supports `{user}`, `{server}`)
+  - `/config setwelcomegif url:<image-url>` — GIF/image used in welcome embed
+  - `/config setdefaultrole role:@role` — Role automatically granted on join
+- **Logging** (**Manage Server**)
+  - `/config setlogchannel channel:#channel` — Set where logs are sent
+  - `/config enablelogging` — Enable event/moderation logs
+  - `/config disablelogging` — Disable event/moderation logs
 
 ## Notes
 

docker-compose.yml

@@ -19,5 +19,22 @@ services:
       timeout: 5s
       retries: 5
 
-volumes:
+  bot:
-  velox_pgdata:
+    build: .
+    container_name: velox-bot
+    restart: unless-stopped
+    env_file: .env
+    environment:
+      DB_HOST: ${DB_HOST:-postgres://velox:velox_pwd@db:5432/velox?sslmode=disable}
+      LAVALINK_HOST: ${LAVALINK_HOST:-ws://lavalink:2333}
+      LAVALINK_PASSWORD: ${LAVALINK_PASSWORD:-youshallnotpass}
+    depends_on:
+      db:
+        condition: service_healthy
+    networks:
+      - default
+      - lavalink
+
+networks:
+  lavalink:
+    external: true

internal/bot/bot.go

@@ -30,10 +30,14 @@ func NewBot(token, appID, guildID, lavalinkHost, lavalinkPass string, cmds []*di
 	// Intents needed for:
 	// - InteractionCreate (slash commands): Guilds
 	// - MessageCreate (leveling): GuildMessages
+	// - GuildMemberAdd (welcome messages): GuildMembers
 	// - VoiceStateUpdate (meeting lobby): GuildVoiceStates
 	// - MessageReactionAdd (scheduling via reactions): GuildMessageReactions + DirectMessageReactions
 	session.Identify.Intents = discordgo.IntentsGuilds |
+		discordgo.IntentsGuildBans |
+		discordgo.IntentsGuildMembers |
 		discordgo.IntentsGuildMessages |
+		discordgo.IntentsMessageContent |
 		discordgo.IntentsGuildVoiceStates |
 		discordgo.IntentsGuildMessageReactions |
 		discordgo.IntentsDirectMessages |
@@ -73,6 +77,42 @@ func (b *Bot) Start() error {
 		events.HandleMessageCreate(s, m, b.Services)
 	})
 
+	b.Session.AddHandler(func(s *discordgo.Session, m *discordgo.GuildMemberAdd) {
+		events.HandleBotAddedOnGuild(s, m, b.Services)
+
+		// Ignore bot members for welcome/log onboarding of normal users.
+		if m != nil && m.Member != nil && m.User != nil && m.User.Bot {
+			return
+		}
+
+		events.HandleGuildMemberAdd(s, m, b.Services)
+		events.HandleGuildMemberAddLog(s, m, b.Services)
+	})
+
+	b.Session.AddHandler(func(s *discordgo.Session, m *discordgo.GuildMemberRemove) {
+		events.HandleGuildMemberRemoveLog(s, m, b.Services)
+	})
+
+	b.Session.AddHandler(func(s *discordgo.Session, m *discordgo.GuildMemberUpdate) {
+		events.HandleGuildMemberUpdateLog(s, m, b.Services)
+	})
+
+	b.Session.AddHandler(func(s *discordgo.Session, m *discordgo.MessageUpdate) {
+		events.HandleMessageUpdateLog(s, m, b.Services)
+	})
+
+	b.Session.AddHandler(func(s *discordgo.Session, m *discordgo.MessageDelete) {
+		events.HandleMessageDeleteLog(s, m, b.Services)
+	})
+
+	b.Session.AddHandler(func(s *discordgo.Session, m *discordgo.GuildBanAdd) {
+		events.HandleGuildBanAddLog(s, m, b.Services)
+	})
+
+	b.Session.AddHandler(func(s *discordgo.Session, m *discordgo.GuildBanRemove) {
+		events.HandleGuildBanRemoveLog(s, m, b.Services)
+	})
+
 	b.Session.AddHandler(func(s *discordgo.Session, vs *discordgo.VoiceStateUpdate) {
 		events.HandleVoiceStateUpdate(s, vs, b.Services)
 		music.OnVoiceStateUpdate(vs)

internal/commands/commands.go

@@ -6,6 +6,7 @@ import (
 	"velox-bot/internal/commands/help"
 	cmdlevel "velox-bot/internal/commands/level"
 	"velox-bot/internal/commands/meeting"
+	"velox-bot/internal/commands/moderation"
 	cmdmusic "velox-bot/internal/commands/music"
 	"velox-bot/internal/commands/projects"
 	"velox-bot/internal/commands/schedule"
@@ -32,6 +33,7 @@ var AllCommands = []*discordgo.ApplicationCommand{
 	cmdmusic.Queue,
 	cmdmusic.Volume,
 	meeting.Meeting,
+	moderation.Moderation,
 	timezone.Timezone,
 	schedule.Schedule,
 	projects.Projects,
@@ -52,6 +54,7 @@ var handlers = map[string]func(s *discordgo.Session, i *discordgo.InteractionCre
 	"leaderboard":    cmdlevel.LeaderboardHandler,
 	"rewards":        cmdlevel.RewardsHandler,
 	"meeting":        meeting.MeetingHandler,
+	"moderation":     moderation.ModerationHandler,
 	"timezone":       timezone.TimezoneHandler,
 	"schedule":       schedule.ScheduleHandler,
 	"projects":       projects.ProjectsHandler,

internal/commands/config/public/config.go

@@ -55,6 +55,96 @@ var Config = &discordgo.ApplicationCommand{
 				},
 			},
 		},
+		{
+			Type:        discordgo.ApplicationCommandOptionSubCommand,
+			Name:        "setwelcomechannel",
+			Description: "Set the channel for welcome messages",
+			Options: []*discordgo.ApplicationCommandOption{
+				{
+					Type:         discordgo.ApplicationCommandOptionChannel,
+					Name:         "channel",
+					Description:  "Text channel for welcomes",
+					Required:     true,
+					ChannelTypes: []discordgo.ChannelType{discordgo.ChannelTypeGuildText, discordgo.ChannelTypeGuildNews},
+				},
+			},
+		},
+		{
+			Type:        discordgo.ApplicationCommandOptionSubCommand,
+			Name:        "setwelcomemessage",
+			Description: "Set the welcome message template shown in the server",
+			Options: []*discordgo.ApplicationCommandOption{
+				{
+					Type:        discordgo.ApplicationCommandOptionString,
+					Name:        "message",
+					Description: "Use {user} where the new member mention should appear",
+					Required:    true,
+				},
+			},
+		},
+		{
+			Type:        discordgo.ApplicationCommandOptionSubCommand,
+			Name:        "setwelcomedm",
+			Description: "Set the welcome DM template sent to new members",
+			Options: []*discordgo.ApplicationCommandOption{
+				{
+					Type:        discordgo.ApplicationCommandOptionString,
+					Name:        "message",
+					Description: "Use {user} where the new member mention should appear",
+					Required:    true,
+				},
+			},
+		},
+		{
+			Type:        discordgo.ApplicationCommandOptionSubCommand,
+			Name:        "setwelcomegif",
+			Description: "Set the GIF/image URL used in welcome messages",
+			Options: []*discordgo.ApplicationCommandOption{
+				{
+					Type:        discordgo.ApplicationCommandOptionString,
+					Name:        "url",
+					Description: "Direct image or GIF URL",
+					Required:    true,
+				},
+			},
+		},
+		{
+			Type:        discordgo.ApplicationCommandOptionSubCommand,
+			Name:        "setdefaultrole",
+			Description: "Set the default role given to new members",
+			Options: []*discordgo.ApplicationCommandOption{
+				{
+					Type:        discordgo.ApplicationCommandOptionRole,
+					Name:        "role",
+					Description: "Role to assign on join",
+					Required:    true,
+				},
+			},
+		},
+		{
+			Type:        discordgo.ApplicationCommandOptionSubCommand,
+			Name:        "setlogchannel",
+			Description: "Set the moderation log channel",
+			Options: []*discordgo.ApplicationCommandOption{
+				{
+					Type:         discordgo.ApplicationCommandOptionChannel,
+					Name:         "channel",
+					Description:  "Text channel for logs",
+					Required:     true,
+					ChannelTypes: []discordgo.ChannelType{discordgo.ChannelTypeGuildText, discordgo.ChannelTypeGuildNews},
+				},
+			},
+		},
+		{
+			Type:        discordgo.ApplicationCommandOptionSubCommand,
+			Name:        "enablelogging",
+			Description: "Enable server logging events",
+		},
+		{
+			Type:        discordgo.ApplicationCommandOptionSubCommand,
+			Name:        "disablelogging",
+			Description: "Disable server logging events",
+		},
 	},
 }
 
@@ -67,8 +157,8 @@ func ConfigHandler(s *discordgo.Session, i *discordgo.InteractionCreate) {
 		respondEphemeral(s, i, "You need the **Manage Server** permission to use this.")
 		return
 	}
-	if services.Global == nil || services.Global.Twitch == nil {
+	if services.Global == nil {
-		respondEphemeral(s, i, "Twitch configuration is not available.")
+		respondEphemeral(s, i, "Configuration services are not available.")
 		return
 	}
 
@@ -88,6 +178,30 @@ func ConfigHandler(s *discordgo.Session, i *discordgo.InteractionCreate) {
 	case "settwitchnotificationchannel":
 		log.Printf("twitch: /config settwitchnotificationchannel invoked by %s in guild %s", i.Member.User.ID, i.GuildID)
 		handleSetChannel(s, i)
+	case "setwelcomechannel":
+		log.Printf("welcome: /config setwelcomechannel invoked by %s in guild %s", i.Member.User.ID, i.GuildID)
+		handleSetWelcomeChannel(s, i)
+	case "setwelcomemessage":
+		log.Printf("welcome: /config setwelcomemessage invoked by %s in guild %s", i.Member.User.ID, i.GuildID)
+		handleSetWelcomeMessage(s, i)
+	case "setwelcomedm":
+		log.Printf("welcome: /config setwelcomedm invoked by %s in guild %s", i.Member.User.ID, i.GuildID)
+		handleSetWelcomeDM(s, i)
+	case "setwelcomegif":
+		log.Printf("welcome: /config setwelcomegif invoked by %s in guild %s", i.Member.User.ID, i.GuildID)
+		handleSetWelcomeGIF(s, i)
+	case "setdefaultrole":
+		log.Printf("defaultrole: /config setdefaultrole invoked by %s in guild %s", i.Member.User.ID, i.GuildID)
+		handleSetDefaultRole(s, i)
+	case "setlogchannel":
+		log.Printf("log: /config setlogchannel invoked by %s in guild %s", i.Member.User.ID, i.GuildID)
+		handleSetLogChannel(s, i)
+	case "enablelogging":
+		log.Printf("log: /config enablelogging invoked by %s in guild %s", i.Member.User.ID, i.GuildID)
+		handleSetLoggingEnabled(s, i, true)
+	case "disablelogging":
+		log.Printf("log: /config disablelogging invoked by %s in guild %s", i.Member.User.ID, i.GuildID)
+		handleSetLoggingEnabled(s, i, false)
 	default:
 		respondEphemeral(s, i, "Unknown subcommand.")
 	}
@@ -193,6 +307,265 @@ func handleSetChannel(s *discordgo.Session, i *discordgo.InteractionCreate) {
 	respondEphemeral(s, i, "Twitch notifications will be sent to "+ch.Mention()+".")
 }
 
+func handleSetWelcomeChannel(s *discordgo.Session, i *discordgo.InteractionCreate) {
+	if services.Global.Welcome == nil {
+		respondEphemeral(s, i, "Welcome configuration is not available.")
+		return
+	}
+
+	guildID, err := strconv.ParseInt(i.GuildID, 10, 64)
+	if err != nil {
+		respondEphemeral(s, i, "Invalid guild ID.")
+		return
+	}
+
+	opt := i.ApplicationCommandData().Options[0]
+	var chOpt *discordgo.ApplicationCommandInteractionDataOption
+	for _, o := range opt.Options {
+		if o.Name == "channel" {
+			chOpt = o
+			break
+		}
+	}
+	if chOpt == nil {
+		respondEphemeral(s, i, "Missing channel option.")
+		return
+	}
+
+	ch := chOpt.ChannelValue(s)
+	if ch == nil {
+		respondEphemeral(s, i, "Invalid channel.")
+		return
+	}
+
+	chID, err := strconv.ParseInt(ch.ID, 10, 64)
+	if err != nil {
+		respondEphemeral(s, i, "Invalid channel ID.")
+		return
+	}
+
+	if err := services.Global.Welcome.SetChannel(context.Background(), guildID, chID); err != nil {
+		respondEphemeral(s, i, "Failed to set welcome channel.")
+		return
+	}
+
+	respondEphemeral(s, i, "Welcome messages will be sent to "+ch.Mention()+".")
+}
+
+func handleSetWelcomeMessage(s *discordgo.Session, i *discordgo.InteractionCreate) {
+	if services.Global.Welcome == nil {
+		respondEphemeral(s, i, "Welcome configuration is not available.")
+		return
+	}
+
+	guildID, err := strconv.ParseInt(i.GuildID, 10, 64)
+	if err != nil {
+		respondEphemeral(s, i, "Invalid guild ID.")
+		return
+	}
+
+	opt := i.ApplicationCommandData().Options[0]
+	var msg string
+	for _, o := range opt.Options {
+		if o.Name == "message" {
+			msg = strings.TrimSpace(o.StringValue())
+		}
+	}
+	if msg == "" {
+		respondEphemeral(s, i, "Message cannot be empty.")
+		return
+	}
+
+	if err := services.Global.Welcome.SetMessage(context.Background(), guildID, msg); err != nil {
+		respondEphemeral(s, i, "Failed to set welcome message.")
+		return
+	}
+
+	respondEphemeral(s, i, "Welcome message updated.")
+}
+
+func handleSetWelcomeDM(s *discordgo.Session, i *discordgo.InteractionCreate) {
+	if services.Global.Welcome == nil {
+		respondEphemeral(s, i, "Welcome configuration is not available.")
+		return
+	}
+
+	guildID, err := strconv.ParseInt(i.GuildID, 10, 64)
+	if err != nil {
+		respondEphemeral(s, i, "Invalid guild ID.")
+		return
+	}
+
+	opt := i.ApplicationCommandData().Options[0]
+	var msg string
+	for _, o := range opt.Options {
+		if o.Name == "message" {
+			msg = strings.TrimSpace(o.StringValue())
+		}
+	}
+	if msg == "" {
+		respondEphemeral(s, i, "DM message cannot be empty.")
+		return
+	}
+
+	if err := services.Global.Welcome.SetDM(context.Background(), guildID, msg); err != nil {
+		respondEphemeral(s, i, "Failed to set welcome DM.")
+		return
+	}
+
+	respondEphemeral(s, i, "Welcome DM updated.")
+}
+
+func handleSetWelcomeGIF(s *discordgo.Session, i *discordgo.InteractionCreate) {
+	if services.Global.Welcome == nil {
+		respondEphemeral(s, i, "Welcome configuration is not available.")
+		return
+	}
+
+	guildID, err := strconv.ParseInt(i.GuildID, 10, 64)
+	if err != nil {
+		respondEphemeral(s, i, "Invalid guild ID.")
+		return
+	}
+
+	opt := i.ApplicationCommandData().Options[0]
+	var url string
+	for _, o := range opt.Options {
+		if o.Name == "url" {
+			url = strings.TrimSpace(o.StringValue())
+		}
+	}
+	if url == "" {
+		respondEphemeral(s, i, "URL cannot be empty.")
+		return
+	}
+
+	if err := services.Global.Welcome.SetGIF(context.Background(), guildID, url); err != nil {
+		respondEphemeral(s, i, "Failed to set welcome GIF.")
+		return
+	}
+
+	respondEphemeral(s, i, "Welcome GIF updated.")
+}
+
+func handleSetDefaultRole(s *discordgo.Session, i *discordgo.InteractionCreate) {
+	if services.Global.DefaultRole == nil {
+		respondEphemeral(s, i, "Default role configuration is not available.")
+		return
+	}
+
+	guildID, err := strconv.ParseInt(i.GuildID, 10, 64)
+	if err != nil {
+		respondEphemeral(s, i, "Invalid guild ID.")
+		return
+	}
+
+	opt := i.ApplicationCommandData().Options[0]
+	var roleOpt *discordgo.ApplicationCommandInteractionDataOption
+	for _, o := range opt.Options {
+		if o.Name == "role" {
+			roleOpt = o
+			break
+		}
+	}
+	if roleOpt == nil {
+		respondEphemeral(s, i, "Missing role option.")
+		return
+	}
+
+	role := roleOpt.RoleValue(s, i.GuildID)
+	if role == nil {
+		respondEphemeral(s, i, "Invalid role.")
+		return
+	}
+
+	roleID, err := strconv.ParseInt(role.ID, 10, 64)
+	if err != nil {
+		respondEphemeral(s, i, "Invalid role ID.")
+		return
+	}
+
+	if err := services.Global.DefaultRole.SetRole(context.Background(), guildID, roleID); err != nil {
+		respondEphemeral(s, i, "Failed to set default role.")
+		return
+	}
+
+	respondEphemeral(s, i, "Default role set to "+role.Mention()+".")
+}
+
+func handleSetLogChannel(s *discordgo.Session, i *discordgo.InteractionCreate) {
+	if services.Global.LogSettings == nil {
+		respondEphemeral(s, i, "Log settings service is not available.")
+		return
+	}
+
+	guildID, err := strconv.ParseInt(i.GuildID, 10, 64)
+	if err != nil {
+		respondEphemeral(s, i, "Invalid guild ID.")
+		return
+	}
+
+	opt := i.ApplicationCommandData().Options[0]
+	var chOpt *discordgo.ApplicationCommandInteractionDataOption
+	for _, o := range opt.Options {
+		if o.Name == "channel" {
+			chOpt = o
+			break
+		}
+	}
+	if chOpt == nil {
+		respondEphemeral(s, i, "Missing channel option.")
+		return
+	}
+
+	ch := chOpt.ChannelValue(s)
+	if ch == nil {
+		respondEphemeral(s, i, "Invalid channel.")
+		return
+	}
+
+	channelID, err := strconv.ParseInt(ch.ID, 10, 64)
+	if err != nil {
+		respondEphemeral(s, i, "Invalid channel ID.")
+		return
+	}
+
+	if err := services.Global.LogSettings.SetChannel(context.Background(), guildID, channelID); err != nil {
+		respondEphemeral(s, i, "Failed to set log channel.")
+		return
+	}
+	if err := services.Global.LogSettings.SetEnabled(context.Background(), guildID, true); err != nil {
+		respondEphemeral(s, i, "Log channel set, but failed to enable logging.")
+		return
+	}
+
+	respondEphemeral(s, i, "Logging enabled in "+ch.Mention()+".")
+}
+
+func handleSetLoggingEnabled(s *discordgo.Session, i *discordgo.InteractionCreate, enabled bool) {
+	if services.Global.LogSettings == nil {
+		respondEphemeral(s, i, "Log settings service is not available.")
+		return
+	}
+
+	guildID, err := strconv.ParseInt(i.GuildID, 10, 64)
+	if err != nil {
+		respondEphemeral(s, i, "Invalid guild ID.")
+		return
+	}
+
+	if err := services.Global.LogSettings.SetEnabled(context.Background(), guildID, enabled); err != nil {
+		respondEphemeral(s, i, "Failed to update logging state.")
+		return
+	}
+
+	if enabled {
+		respondEphemeral(s, i, "Logging is now enabled.")
+		return
+	}
+	respondEphemeral(s, i, "Logging is now disabled.")
+}
+
 func respondEphemeral(s *discordgo.Session, i *discordgo.InteractionCreate, msg string) {
 	_ = s.InteractionRespond(i.Interaction, &discordgo.InteractionResponse{
 		Type: discordgo.InteractionResponseChannelMessageWithSource,

internal/commands/help/help.go

@@ -94,6 +94,17 @@ func HelpHandler(s *discordgo.Session, i *discordgo.InteractionCreate) {
 					"`/meeting invite user:@someone` — Allow a user to join\n" +
 					"`/meeting uninvite user:@someone` — Remove a user's permission",
 			},
+			{
+				Name: "Moderation (focused tools)",
+				Value: "" +
+					"`/moderation purge amount:<1-100>` — Delete recent messages (**Manage Messages**)\n" +
+					"`/moderation timeout user:@someone duration:<10m|1h|...> [reason]` — Timeout member (**Moderate Members**)\n" +
+					"`/moderation kick user:@someone [reason]` — Kick member (**Kick Members**)\n" +
+					"`/moderation ban user:@someone [delete_days] [reason]` — Ban member (**Ban Members**)\n" +
+					"`/moderation unban user_id:<id> [reason]` — Unban by user ID (**Ban Members**)\n" +
+					"`/moderation untimeout user:@someone [reason]` — Remove timeout (**Moderate Members**)\n" +
+					"`/moderation slowmode channel:#channel seconds:<0-21600>` — Set slowmode (**Manage Channels**)",
+			},
 			{
 				Name: "Leveling",
 				Value: "" +
@@ -106,6 +117,29 @@ func HelpHandler(s *discordgo.Session, i *discordgo.InteractionCreate) {
 					"`/leaderboard` — Top levels (server only)\n" +
 					"`/rewards` — List configured rewards (server only)",
 			},
+			{
+				Name: "Twitch live notifications (**Manage Server**)",
+				Value: "" +
+					"`/config addstreamer username:<twitch-name>` — Add a streamer\n" +
+					"`/config removestreamer username:<twitch-name>` — Remove a streamer\n" +
+					"`/config settwitchnotificationchannel channel:#channel` — Set notification channel",
+			},
+			{
+				Name: "Welcome / onboarding (**Manage Server**)",
+				Value: "" +
+					"`/config setwelcomechannel channel:#channel` — Channel for welcome messages\n" +
+					"`/config setwelcomemessage message:\"...\"` — Welcome text (supports `{user}`, `{server}`)\n" +
+					"`/config setwelcomedm message:\"...\"` — DM template (supports `{user}`, `{server}`)\n" +
+					"`/config setwelcomegif url:<image-url>` — GIF/image used in welcome embed\n" +
+					"`/config setdefaultrole role:@role` — Role granted to new members",
+			},
+			{
+				Name: "Logging (**Manage Server**)",
+				Value: "" +
+					"`/config setlogchannel channel:#channel` — Set log output channel\n" +
+					"`/config enablelogging` — Enable event/moderation logging\n" +
+					"`/config disablelogging` — Disable event/moderation logging",
+			},
 			{
 				Name:  "Other",
 				Value: "`/help` — Show this help in DMs",

internal/commands/moderation/public/moderation.go

@@ -0,0 +1,578 @@
+package public
+
+import (
+	"fmt"
+	"strings"
+	"time"
+
+	"velox-bot/internal/db/services"
+	"velox-bot/internal/modlog"
+
+	"github.com/bwmarrin/discordgo"
+)
+
+var Moderation = &discordgo.ApplicationCommand{
+	Name:        "moderation",
+	Description: "High-value moderation tools",
+	Options: []*discordgo.ApplicationCommandOption{
+		{
+			Type:        discordgo.ApplicationCommandOptionSubCommand,
+			Name:        "purge",
+			Description: "Delete recent messages in this channel (max 100)",
+			Options: []*discordgo.ApplicationCommandOption{
+				{
+					Type:        discordgo.ApplicationCommandOptionInteger,
+					Name:        "amount",
+					Description: "How many recent messages to delete (1-100)",
+					Required:    true,
+				},
+			},
+		},
+		{
+			Type:        discordgo.ApplicationCommandOptionSubCommand,
+			Name:        "timeout",
+			Description: "Temporarily timeout a member",
+			Options: []*discordgo.ApplicationCommandOption{
+				{
+					Type:        discordgo.ApplicationCommandOptionUser,
+					Name:        "user",
+					Description: "User to timeout",
+					Required:    true,
+				},
+				{
+					Type:        discordgo.ApplicationCommandOptionString,
+					Name:        "duration",
+					Description: "Duration like 10m, 1h, 2h30m (max 28d)",
+					Required:    true,
+				},
+				{
+					Type:        discordgo.ApplicationCommandOptionString,
+					Name:        "reason",
+					Description: "Optional reason",
+					Required:    false,
+				},
+			},
+		},
+		{
+			Type:        discordgo.ApplicationCommandOptionSubCommand,
+			Name:        "kick",
+			Description: "Kick a member from the server",
+			Options: []*discordgo.ApplicationCommandOption{
+				{
+					Type:        discordgo.ApplicationCommandOptionUser,
+					Name:        "user",
+					Description: "User to kick",
+					Required:    true,
+				},
+				{
+					Type:        discordgo.ApplicationCommandOptionString,
+					Name:        "reason",
+					Description: "Optional reason",
+					Required:    false,
+				},
+			},
+		},
+		{
+			Type:        discordgo.ApplicationCommandOptionSubCommand,
+			Name:        "ban",
+			Description: "Ban a member from the server",
+			Options: []*discordgo.ApplicationCommandOption{
+				{
+					Type:        discordgo.ApplicationCommandOptionUser,
+					Name:        "user",
+					Description: "User to ban",
+					Required:    true,
+				},
+				{
+					Type:        discordgo.ApplicationCommandOptionInteger,
+					Name:        "delete_days",
+					Description: "Delete message history (0-7 days)",
+					Required:    false,
+				},
+				{
+					Type:        discordgo.ApplicationCommandOptionString,
+					Name:        "reason",
+					Description: "Optional reason",
+					Required:    false,
+				},
+			},
+		},
+		{
+			Type:        discordgo.ApplicationCommandOptionSubCommand,
+			Name:        "unban",
+			Description: "Unban a user by ID",
+			Options: []*discordgo.ApplicationCommandOption{
+				{
+					Type:        discordgo.ApplicationCommandOptionString,
+					Name:        "user_id",
+					Description: "User ID to unban",
+					Required:    true,
+				},
+				{
+					Type:        discordgo.ApplicationCommandOptionString,
+					Name:        "reason",
+					Description: "Optional reason",
+					Required:    false,
+				},
+			},
+		},
+		{
+			Type:        discordgo.ApplicationCommandOptionSubCommand,
+			Name:        "untimeout",
+			Description: "Remove timeout from a member",
+			Options: []*discordgo.ApplicationCommandOption{
+				{
+					Type:        discordgo.ApplicationCommandOptionUser,
+					Name:        "user",
+					Description: "User to untimeout",
+					Required:    true,
+				},
+				{
+					Type:        discordgo.ApplicationCommandOptionString,
+					Name:        "reason",
+					Description: "Optional reason",
+					Required:    false,
+				},
+			},
+		},
+		{
+			Type:        discordgo.ApplicationCommandOptionSubCommand,
+			Name:        "slowmode",
+			Description: "Set channel slowmode (0 disables)",
+			Options: []*discordgo.ApplicationCommandOption{
+				{
+					Type:         discordgo.ApplicationCommandOptionChannel,
+					Name:         "channel",
+					Description:  "Text channel to update",
+					Required:     true,
+					ChannelTypes: []discordgo.ChannelType{discordgo.ChannelTypeGuildText, discordgo.ChannelTypeGuildNews},
+				},
+				{
+					Type:        discordgo.ApplicationCommandOptionInteger,
+					Name:        "seconds",
+					Description: "Slowmode delay in seconds (0-21600)",
+					Required:    true,
+				},
+			},
+		},
+	},
+}
+
+func ModerationHandler(s *discordgo.Session, i *discordgo.InteractionCreate) {
+	if i.GuildID == "" {
+		respondEphemeral(s, i, "This command can only be used in a server.")
+		return
+	}
+
+	data := i.ApplicationCommandData()
+	if len(data.Options) == 0 {
+		respondEphemeral(s, i, "Missing subcommand.")
+		return
+	}
+
+	switch data.Options[0].Name {
+	case "purge":
+		handlePurge(s, i)
+	case "timeout":
+		handleTimeout(s, i)
+	case "kick":
+		handleKick(s, i)
+	case "ban":
+		handleBan(s, i)
+	case "unban":
+		handleUnban(s, i)
+	case "untimeout":
+		handleUntimeout(s, i)
+	case "slowmode":
+		handleSlowmode(s, i)
+	default:
+		respondEphemeral(s, i, "Unknown subcommand.")
+	}
+}
+
+func handlePurge(s *discordgo.Session, i *discordgo.InteractionCreate) {
+	if !hasPerm(i, discordgo.PermissionManageMessages) {
+		respondEphemeral(s, i, "You need **Manage Messages** for this command.")
+		return
+	}
+
+	opt := i.ApplicationCommandData().Options[0]
+	var amount int64
+	for _, o := range opt.Options {
+		if o.Name == "amount" {
+			amount = o.IntValue()
+			break
+		}
+	}
+	if amount < 1 || amount > 100 {
+		respondEphemeral(s, i, "Amount must be between 1 and 100.")
+		return
+	}
+
+	msgs, err := s.ChannelMessages(i.ChannelID, int(amount), "", "", "")
+	if err != nil {
+		respondEphemeral(s, i, "Failed to fetch messages.")
+		return
+	}
+	if len(msgs) == 0 {
+		respondEphemeral(s, i, "No messages found to delete.")
+		return
+	}
+
+	tooOldCutoff := time.Now().Add(-14 * 24 * time.Hour)
+	ids := make([]string, 0, len(msgs))
+	for _, m := range msgs {
+		if m == nil {
+			continue
+		}
+		if m.Timestamp.Before(tooOldCutoff) {
+			continue
+		}
+		ids = append(ids, m.ID)
+	}
+	if len(ids) == 0 {
+		respondEphemeral(s, i, "No messages can be bulk deleted (older than 14 days).")
+		return
+	}
+
+	if len(ids) == 1 {
+		if err := s.ChannelMessageDelete(i.ChannelID, ids[0]); err != nil {
+			respondEphemeral(s, i, "Failed to delete message.")
+			return
+		}
+		respondEphemeral(s, i, "Deleted 1 message.")
+		sendModerationActionLog(s, i, "Purge", fmt.Sprintf("Deleted 1 message in <#%s>.", i.ChannelID), "")
+		return
+	}
+
+	if err := s.ChannelMessagesBulkDelete(i.ChannelID, ids); err != nil {
+		respondEphemeral(s, i, "Failed to bulk delete messages.")
+		return
+	}
+
+	respondEphemeral(s, i, fmt.Sprintf("Deleted %d messages.", len(ids)))
+	sendModerationActionLog(s, i, "Purge", fmt.Sprintf("Deleted %d messages in <#%s>.", len(ids), i.ChannelID), "")
+}
+
+func handleTimeout(s *discordgo.Session, i *discordgo.InteractionCreate) {
+	if !hasPerm(i, discordgo.PermissionModerateMembers) {
+		respondEphemeral(s, i, "You need **Moderate Members** for this command.")
+		return
+	}
+
+	opt := i.ApplicationCommandData().Options[0]
+	var userOpt *discordgo.ApplicationCommandInteractionDataOption
+	var durationInput string
+	var reason string
+	for _, o := range opt.Options {
+		switch o.Name {
+		case "user":
+			userOpt = o
+		case "duration":
+			durationInput = strings.TrimSpace(o.StringValue())
+		case "reason":
+			reason = strings.TrimSpace(o.StringValue())
+		}
+	}
+	if userOpt == nil {
+		respondEphemeral(s, i, "Missing user option.")
+		return
+	}
+	target := userOpt.UserValue(s)
+	if target == nil {
+		respondEphemeral(s, i, "Invalid user.")
+		return
+	}
+
+	dur, err := time.ParseDuration(durationInput)
+	if err != nil || dur <= 0 {
+		respondEphemeral(s, i, "Invalid duration. Examples: `10m`, `1h`, `2h30m`.")
+		return
+	}
+	maxTimeout := 28 * 24 * time.Hour
+	if dur > maxTimeout {
+		respondEphemeral(s, i, "Duration cannot exceed 28 days.")
+		return
+	}
+
+	until := time.Now().UTC().Add(dur)
+	if err := s.GuildMemberTimeout(i.GuildID, target.ID, &until); err != nil {
+		respondEphemeral(s, i, "Failed to timeout user. Check role hierarchy and permissions.")
+		return
+	}
+
+	if reason == "" {
+		respondEphemeral(s, i, fmt.Sprintf("Timed out %s for `%s`.", target.Mention(), dur.String()))
+		sendModerationActionLog(s, i, "Timeout", fmt.Sprintf("Target: %s\nDuration: `%s`", target.Mention(), dur.String()), "")
+		return
+	}
+	respondEphemeral(s, i, fmt.Sprintf("Timed out %s for `%s`. Reason: %s", target.Mention(), dur.String(), reason))
+	sendModerationActionLog(s, i, "Timeout", fmt.Sprintf("Target: %s\nDuration: `%s`", target.Mention(), dur.String()), reason)
+}
+
+func handleKick(s *discordgo.Session, i *discordgo.InteractionCreate) {
+	if !hasPerm(i, discordgo.PermissionKickMembers) {
+		respondEphemeral(s, i, "You need **Kick Members** for this command.")
+		return
+	}
+
+	opt := i.ApplicationCommandData().Options[0]
+	var userOpt *discordgo.ApplicationCommandInteractionDataOption
+	var reason string
+	for _, o := range opt.Options {
+		switch o.Name {
+		case "user":
+			userOpt = o
+		case "reason":
+			reason = strings.TrimSpace(o.StringValue())
+		}
+	}
+	if userOpt == nil {
+		respondEphemeral(s, i, "Missing user option.")
+		return
+	}
+	target := userOpt.UserValue(s)
+	if target == nil {
+		respondEphemeral(s, i, "Invalid user.")
+		return
+	}
+	if i.Member != nil && i.Member.User != nil && target.ID == i.Member.User.ID {
+		respondEphemeral(s, i, "You cannot kick yourself.")
+		return
+	}
+	if s != nil && s.State != nil && s.State.User != nil && target.ID == s.State.User.ID {
+		respondEphemeral(s, i, "I can't kick myself.")
+		return
+	}
+
+	if err := s.GuildMemberDeleteWithReason(i.GuildID, target.ID, reason); err != nil {
+		respondEphemeral(s, i, "Failed to kick user. Check role hierarchy and permissions.")
+		return
+	}
+
+	if reason == "" {
+		respondEphemeral(s, i, "Kicked "+target.Mention()+".")
+		sendModerationActionLog(s, i, "Kick", "Target: "+target.Mention(), "")
+		return
+	}
+	respondEphemeral(s, i, "Kicked "+target.Mention()+". Reason: "+reason)
+	sendModerationActionLog(s, i, "Kick", "Target: "+target.Mention(), reason)
+}
+
+func handleBan(s *discordgo.Session, i *discordgo.InteractionCreate) {
+	if !hasPerm(i, discordgo.PermissionBanMembers) {
+		respondEphemeral(s, i, "You need **Ban Members** for this command.")
+		return
+	}
+
+	opt := i.ApplicationCommandData().Options[0]
+	var userOpt *discordgo.ApplicationCommandInteractionDataOption
+	var deleteDays int64
+	var reason string
+	for _, o := range opt.Options {
+		switch o.Name {
+		case "user":
+			userOpt = o
+		case "delete_days":
+			deleteDays = o.IntValue()
+		case "reason":
+			reason = strings.TrimSpace(o.StringValue())
+		}
+	}
+	if userOpt == nil {
+		respondEphemeral(s, i, "Missing user option.")
+		return
+	}
+	target := userOpt.UserValue(s)
+	if target == nil {
+		respondEphemeral(s, i, "Invalid user.")
+		return
+	}
+	if deleteDays < 0 || deleteDays > 7 {
+		respondEphemeral(s, i, "delete_days must be between 0 and 7.")
+		return
+	}
+	if i.Member != nil && i.Member.User != nil && target.ID == i.Member.User.ID {
+		respondEphemeral(s, i, "You cannot ban yourself.")
+		return
+	}
+	if s != nil && s.State != nil && s.State.User != nil && target.ID == s.State.User.ID {
+		respondEphemeral(s, i, "I can't ban myself.")
+		return
+	}
+
+	if err := s.GuildBanCreateWithReason(i.GuildID, target.ID, reason, int(deleteDays)); err != nil {
+		respondEphemeral(s, i, "Failed to ban user. Check role hierarchy and permissions.")
+		return
+	}
+
+	if reason == "" {
+		respondEphemeral(s, i, fmt.Sprintf("Banned %s (deleted %d days of messages).", target.Mention(), deleteDays))
+		sendModerationActionLog(s, i, "Ban", fmt.Sprintf("Target: %s\nDeleted message days: %d", target.Mention(), deleteDays), "")
+		return
+	}
+	respondEphemeral(s, i, fmt.Sprintf("Banned %s (deleted %d days of messages). Reason: %s", target.Mention(), deleteDays, reason))
+	sendModerationActionLog(s, i, "Ban", fmt.Sprintf("Target: %s\nDeleted message days: %d", target.Mention(), deleteDays), reason)
+}
+
+func handleUnban(s *discordgo.Session, i *discordgo.InteractionCreate) {
+	if !hasPerm(i, discordgo.PermissionBanMembers) {
+		respondEphemeral(s, i, "You need **Ban Members** for this command.")
+		return
+	}
+
+	opt := i.ApplicationCommandData().Options[0]
+	var userID string
+	var reason string
+	for _, o := range opt.Options {
+		switch o.Name {
+		case "user_id":
+			userID = strings.TrimSpace(o.StringValue())
+		case "reason":
+			reason = strings.TrimSpace(o.StringValue())
+		}
+	}
+	if userID == "" {
+		respondEphemeral(s, i, "Missing user ID.")
+		return
+	}
+
+	if err := s.GuildBanDelete(i.GuildID, userID); err != nil {
+		respondEphemeral(s, i, "Failed to unban user. Make sure the user ID is valid and banned.")
+		return
+	}
+
+	if reason == "" {
+		respondEphemeral(s, i, "Unbanned user ID `"+userID+"`.")
+		sendModerationActionLog(s, i, "Unban", "Target user ID: `"+userID+"`", "")
+		return
+	}
+	respondEphemeral(s, i, "Unbanned user ID `"+userID+"`. Reason: "+reason)
+	sendModerationActionLog(s, i, "Unban", "Target user ID: `"+userID+"`", reason)
+}
+
+func handleUntimeout(s *discordgo.Session, i *discordgo.InteractionCreate) {
+	if !hasPerm(i, discordgo.PermissionModerateMembers) {
+		respondEphemeral(s, i, "You need **Moderate Members** for this command.")
+		return
+	}
+
+	opt := i.ApplicationCommandData().Options[0]
+	var userOpt *discordgo.ApplicationCommandInteractionDataOption
+	var reason string
+	for _, o := range opt.Options {
+		switch o.Name {
+		case "user":
+			userOpt = o
+		case "reason":
+			reason = strings.TrimSpace(o.StringValue())
+		}
+	}
+	if userOpt == nil {
+		respondEphemeral(s, i, "Missing user option.")
+		return
+	}
+	target := userOpt.UserValue(s)
+	if target == nil {
+		respondEphemeral(s, i, "Invalid user.")
+		return
+	}
+
+	if err := s.GuildMemberTimeout(i.GuildID, target.ID, nil); err != nil {
+		respondEphemeral(s, i, "Failed to remove timeout. Check role hierarchy and permissions.")
+		return
+	}
+
+	if reason == "" {
+		respondEphemeral(s, i, "Removed timeout from "+target.Mention()+".")
+		sendModerationActionLog(s, i, "Timeout Removed", "Target: "+target.Mention(), "")
+		return
+	}
+	respondEphemeral(s, i, "Removed timeout from "+target.Mention()+". Reason: "+reason)
+	sendModerationActionLog(s, i, "Timeout Removed", "Target: "+target.Mention(), reason)
+}
+
+func handleSlowmode(s *discordgo.Session, i *discordgo.InteractionCreate) {
+	if !hasPerm(i, discordgo.PermissionManageChannels) {
+		respondEphemeral(s, i, "You need **Manage Channels** for this command.")
+		return
+	}
+
+	opt := i.ApplicationCommandData().Options[0]
+	var chOpt *discordgo.ApplicationCommandInteractionDataOption
+	var seconds int64
+	for _, o := range opt.Options {
+		switch o.Name {
+		case "channel":
+			chOpt = o
+		case "seconds":
+			seconds = o.IntValue()
+		}
+	}
+	if chOpt == nil {
+		respondEphemeral(s, i, "Missing channel option.")
+		return
+	}
+	if seconds < 0 || seconds > 21600 {
+		respondEphemeral(s, i, "Seconds must be between 0 and 21600.")
+		return
+	}
+	ch := chOpt.ChannelValue(s)
+	if ch == nil {
+		respondEphemeral(s, i, "Invalid channel.")
+		return
+	}
+
+	secondsInt := int(seconds)
+	_, err := s.ChannelEditComplex(ch.ID, &discordgo.ChannelEdit{
+		RateLimitPerUser: &secondsInt,
+	})
+	if err != nil {
+		respondEphemeral(s, i, "Failed to update slowmode.")
+		return
+	}
+
+	if seconds == 0 {
+		respondEphemeral(s, i, "Disabled slowmode in "+ch.Mention()+".")
+		sendModerationActionLog(s, i, "Slowmode", "Channel: "+ch.Mention()+"\nSet to: `0s`", "")
+		return
+	}
+	respondEphemeral(s, i, fmt.Sprintf("Set slowmode in %s to %d seconds.", ch.Mention(), seconds))
+	sendModerationActionLog(s, i, "Slowmode", fmt.Sprintf("Channel: %s\nSet to: `%ds`", ch.Mention(), seconds), "")
+}
+
+func hasPerm(i *discordgo.InteractionCreate, perm int64) bool {
+	return i.Member != nil && (i.Member.Permissions&perm) == perm
+}
+
+func respondEphemeral(s *discordgo.Session, i *discordgo.InteractionCreate, msg string) {
+	_ = s.InteractionRespond(i.Interaction, &discordgo.InteractionResponse{
+		Type: discordgo.InteractionResponseChannelMessageWithSource,
+		Data: &discordgo.InteractionResponseData{
+			Content: msg,
+			Flags:   discordgo.MessageFlagsEphemeral,
+		},
+	})
+}
+
+func sendModerationActionLog(s *discordgo.Session, i *discordgo.InteractionCreate, action, details, reason string) {
+	if services.Global == nil {
+		return
+	}
+	moderator := "Unknown"
+	if i != nil && i.Member != nil && i.Member.User != nil {
+		moderator = i.Member.User.Mention()
+	}
+	desc := "Moderator: " + moderator + "\n" + details
+	if strings.TrimSpace(reason) != "" {
+		desc += "\nReason: " + reason
+	}
+	embed := &discordgo.MessageEmbed{
+		Title:       "Moderation Action: " + action,
+		Color:       0x5865F2,
+		Description: desc,
+		Timestamp:   time.Now().Format(time.RFC3339),
+	}
+	_ = modlog.Send(s, services.Global, i.GuildID, embed)
+}
+

internal/commands/moderation/registry.go

@@ -0,0 +1,16 @@
+package moderation
+
+import (
+	"velox-bot/internal/commands/moderation/public"
+
+	"github.com/bwmarrin/discordgo"
+)
+
+var (
+	Moderation *discordgo.ApplicationCommand = public.Moderation
+)
+
+func ModerationHandler(s *discordgo.Session, i *discordgo.InteractionCreate) {
+	public.ModerationHandler(s, i)
+}
+

internal/config/config.go

@@ -8,19 +8,18 @@ import (
 )
 
 type Config struct {
-	BotToken      string
+	BotToken       string
-	AppID         string
+	AppID          string
-	GuildID       string
+	GuildID        string
-	DBHost        string
+	DBHost         string
-	LavalinkHost  string
+	LavalinkHost   string
-	LavalinkPass  string
+	LavalinkPass   string
 	TwitchClientID string
 }
 
 func LoadConfig() (*Config, error) {
-	if err := godotenv.Load(); err != nil {
+	// Load .env if present (e.g. local dev). Ignore if missing (e.g. Docker injects env vars).
-		return nil, err
+	_ = godotenv.Load()
-	}
 
 	token := os.Getenv("BOT_TOKEN")
 	if token == "" {
@@ -33,9 +32,6 @@ func LoadConfig() (*Config, error) {
 	}
 
 	guildID := os.Getenv("GUILD_ID")
-	if guildID == "" {
-		return nil, fmt.Errorf("GUILD_ID is not set")
-	}
 
 	dbHost := os.Getenv("DB_HOST")
 	if dbHost == "" {

internal/db/repos/defaultrolerepo/repo.go

@@ -0,0 +1,47 @@
+package defaultrolerepo
+
+import (
+	"context"
+	"database/sql"
+)
+
+type Repo struct {
+	db *sql.DB
+}
+
+func NewRepo(db *sql.DB) *Repo {
+	return &Repo{db: db}
+}
+
+// GetRole returns the configured default role ID for a guild, or 0 if none.
+func (r *Repo) GetRole(ctx context.Context, guildID int64) (int64, error) {
+	const q = `
+		SELECT role_id
+		FROM defaultrole
+		WHERE guild_id = $1
+	`
+	var roleID sql.NullInt64
+	if err := r.db.QueryRowContext(ctx, q, guildID).Scan(&roleID); err != nil {
+		if err == sql.ErrNoRows {
+			return 0, nil
+		}
+		return 0, err
+	}
+	if !roleID.Valid {
+		return 0, nil
+	}
+	return roleID.Int64, nil
+}
+
+// SetRole upserts the default role for a guild.
+func (r *Repo) SetRole(ctx context.Context, guildID, roleID int64) error {
+	const q = `
+		INSERT INTO defaultrole (guild_id, role_id)
+		VALUES ($1, $2)
+		ON CONFLICT (guild_id)
+		DO UPDATE SET role_id = EXCLUDED.role_id
+	`
+	_, err := r.db.ExecContext(ctx, q, guildID, roleID)
+	return err
+}
+

internal/db/repos/settingsrepo/repo.go

@@ -15,6 +15,12 @@ type LevelReward struct {
 	RoleID  int64
 }
 
+type LogSettings struct {
+	GuildID   int64
+	ChannelID int64
+	IsEnabled bool
+}
+
 func NewRepo(db *sql.DB) *Repo {
 	return &Repo{db: db}
 }
@@ -240,6 +246,80 @@ func (r *Repo) SetLevelUpMessage(ctx context.Context, guildID int64, message str
 	return err
 }
 
+func (r *Repo) SetLogChannel(ctx context.Context, guildID int64, channelID int64) error {
+	const q = `
+		INSERT INTO logsettings (guild_id, log_channel_id, is_enabled)
+		VALUES ($1, $2, TRUE)
+		ON CONFLICT (guild_id)
+		DO UPDATE SET log_channel_id = EXCLUDED.log_channel_id
+	`
+	_, err := r.db.ExecContext(ctx, q, guildID, channelID)
+	return err
+}
+
+func (r *Repo) SetLogEnabled(ctx context.Context, guildID int64, enabled bool) error {
+	const q = `
+		INSERT INTO logsettings (guild_id, is_enabled)
+		VALUES ($1, $2)
+		ON CONFLICT (guild_id)
+		DO UPDATE SET is_enabled = EXCLUDED.is_enabled
+	`
+	_, err := r.db.ExecContext(ctx, q, guildID, enabled)
+	return err
+}
+
+func (r *Repo) GetLogSettings(ctx context.Context, guildID int64) (*LogSettings, error) {
+	const q = `
+		SELECT log_channel_id, is_enabled
+		FROM logsettings
+		WHERE guild_id = $1
+	`
+	row := r.db.QueryRowContext(ctx, q, guildID)
+	var channelID sql.NullInt64
+	var enabled sql.NullBool
+	switch err := row.Scan(&channelID, &enabled); err {
+	case nil:
+		out := &LogSettings{
+			GuildID:   guildID,
+			ChannelID: 0,
+			IsEnabled: false,
+		}
+		if channelID.Valid {
+			out.ChannelID = channelID.Int64
+		}
+		if enabled.Valid {
+			out.IsEnabled = enabled.Bool
+		}
+		return out, nil
+	case sql.ErrNoRows:
+		return &LogSettings{
+			GuildID:   guildID,
+			ChannelID: 0,
+			IsEnabled: false,
+		}, nil
+	default:
+		return nil, err
+	}
+}
+
+func (r *Repo) HasLogSettings(ctx context.Context, guildID int64) (bool, error) {
+	const q = `
+		SELECT 1
+		FROM logsettings
+		WHERE guild_id = $1
+	`
+	row := r.db.QueryRowContext(ctx, q, guildID)
+	var one int
+	switch err := row.Scan(&one); err {
+	case nil:
+		return true, nil
+	case sql.ErrNoRows:
+		return false, nil
+	default:
+		return false, err
+	}
+}
+
 func (r *Repo) GetLevelUpMessage(ctx context.Context, guildID int64) (string, error) {
 	const q = `
 		SELECT message

internal/db/repos/welcomerepo/repo.go

@@ -0,0 +1,111 @@
+package welcomerepo
+
+import (
+	"context"
+	"database/sql"
+)
+
+type Repo struct {
+	db *sql.DB
+}
+
+type Settings struct {
+	GuildID          int64
+	ChannelID        int64
+	WelcomeMessage   string
+	WelcomeDM        string
+	WelcomeGIFURL    string
+	HasConfiguration bool
+}
+
+func NewRepo(db *sql.DB) *Repo {
+	return &Repo{db: db}
+}
+
+func (r *Repo) GetSettings(ctx context.Context, guildID int64) (*Settings, error) {
+	const q = `
+		SELECT welcome_channel_id, welcome_message, welcome_dm, welcome_gif_url
+		FROM welcome
+		WHERE guild_id = $1
+	`
+	row := r.db.QueryRowContext(ctx, q, guildID)
+	var ch sql.NullInt64
+	var msg, dm, gif sql.NullString
+
+	switch err := row.Scan(&ch, &msg, &dm, &gif); err {
+	case nil:
+		s := &Settings{
+			GuildID:          guildID,
+			ChannelID:        0,
+			WelcomeMessage:   "",
+			WelcomeDM:        "",
+			WelcomeGIFURL:    "",
+			HasConfiguration: true,
+		}
+		if ch.Valid {
+			s.ChannelID = ch.Int64
+		}
+		if msg.Valid {
+			s.WelcomeMessage = msg.String
+		}
+		if dm.Valid {
+			s.WelcomeDM = dm.String
+		}
+		if gif.Valid {
+			s.WelcomeGIFURL = gif.String
+		}
+		return s, nil
+	case sql.ErrNoRows:
+		return &Settings{
+			GuildID:          guildID,
+			HasConfiguration: false,
+		}, nil
+	default:
+		return nil, err
+	}
+}
+
+func (r *Repo) UpsertChannel(ctx context.Context, guildID, channelID int64) error {
+	const q = `
+		INSERT INTO welcome (guild_id, welcome_channel_id)
+		VALUES ($1, $2)
+		ON CONFLICT (guild_id)
+		DO UPDATE SET welcome_channel_id = EXCLUDED.welcome_channel_id
+	`
+	_, err := r.db.ExecContext(ctx, q, guildID, channelID)
+	return err
+}
+
+func (r *Repo) UpsertMessage(ctx context.Context, guildID int64, message string) error {
+	const q = `
+		INSERT INTO welcome (guild_id, welcome_message)
+		VALUES ($1, $2)
+		ON CONFLICT (guild_id)
+		DO UPDATE SET welcome_message = EXCLUDED.welcome_message
+	`
+	_, err := r.db.ExecContext(ctx, q, guildID, message)
+	return err
+}
+
+func (r *Repo) UpsertDM(ctx context.Context, guildID int64, dm string) error {
+	const q = `
+		INSERT INTO welcome (guild_id, welcome_dm)
+		VALUES ($1, $2)
+		ON CONFLICT (guild_id)
+		DO UPDATE SET welcome_dm = EXCLUDED.welcome_dm
+	`
+	_, err := r.db.ExecContext(ctx, q, guildID, dm)
+	return err
+}
+
+func (r *Repo) UpsertGIF(ctx context.Context, guildID int64, gifURL string) error {
+	const q = `
+		INSERT INTO welcome (guild_id, welcome_gif_url)
+		VALUES ($1, $2)
+		ON CONFLICT (guild_id)
+		DO UPDATE SET welcome_gif_url = EXCLUDED.welcome_gif_url
+	`
+	_, err := r.db.ExecContext(ctx, q, guildID, gifURL)
+	return err
+}
+

internal/db/services/defaultrole/service.go

@@ -0,0 +1,24 @@
+package defaultrole
+
+import (
+	"context"
+
+	"velox-bot/internal/db/repos/defaultrolerepo"
+)
+
+type Service struct {
+	repo *defaultrolerepo.Repo
+}
+
+func New(repo *defaultrolerepo.Repo) *Service {
+	return &Service{repo: repo}
+}
+
+func (s *Service) GetRole(ctx context.Context, guildID int64) (int64, error) {
+	return s.repo.GetRole(ctx, guildID)
+}
+
+func (s *Service) SetRole(ctx context.Context, guildID, roleID int64) error {
+	return s.repo.SetRole(ctx, guildID, roleID)
+}
+

internal/db/services/logsettings/service.go

@@ -0,0 +1,32 @@
+package logsettings
+
+import (
+	"context"
+
+	"velox-bot/internal/db/repos/settingsrepo"
+)
+
+type Service struct {
+	settings *settingsrepo.Repo
+}
+
+func New(settings *settingsrepo.Repo) *Service {
+	return &Service{settings: settings}
+}
+
+func (s *Service) SetChannel(ctx context.Context, guildID, channelID int64) error {
+	return s.settings.SetLogChannel(ctx, guildID, channelID)
+}
+
+func (s *Service) SetEnabled(ctx context.Context, guildID int64, enabled bool) error {
+	return s.settings.SetLogEnabled(ctx, guildID, enabled)
+}
+
+func (s *Service) GetSettings(ctx context.Context, guildID int64) (*settingsrepo.LogSettings, error) {
+	return s.settings.GetLogSettings(ctx, guildID)
+}
+
+func (s *Service) HasSettings(ctx context.Context, guildID int64) (bool, error) {
+	return s.settings.HasLogSettings(ctx, guildID)
+}
+

internal/db/services/services.go

@@ -1,14 +1,17 @@
 package services
 
 import (
+	"velox-bot/internal/db/services/defaultrole"
 	"velox-bot/internal/db/services/level"
 	"velox-bot/internal/db/services/levelsettings"
+	"velox-bot/internal/db/services/logsettings"
 	"velox-bot/internal/db/services/meeting"
 	"velox-bot/internal/db/services/projects"
 	"velox-bot/internal/db/services/rps"
 	"velox-bot/internal/db/services/schedule"
 	"velox-bot/internal/db/services/twitch"
 	"velox-bot/internal/db/services/usersettings"
+	"velox-bot/internal/db/services/welcome"
 )
 
 type Services struct {
@@ -20,11 +23,14 @@ type Services struct {
 	Projects      *projects.Service
 	RPS           *rps.Service
 	Twitch        *twitch.Service
+	Welcome       *welcome.Service
+	DefaultRole   *defaultrole.Service
+	LogSettings   *logsettings.Service
 }
 
 var Global *Services
 
-func NewServices(level *level.Service, levelSettings *levelsettings.Service, meeting *meeting.Service, schedule *schedule.Service, userSettings *usersettings.Service, projects *projects.Service, rps *rps.Service, twitchSvc *twitch.Service) *Services {
+func NewServices(level *level.Service, levelSettings *levelsettings.Service, meeting *meeting.Service, schedule *schedule.Service, userSettings *usersettings.Service, projects *projects.Service, rps *rps.Service, twitchSvc *twitch.Service, welcomeSvc *welcome.Service, defaultRoleSvc *defaultrole.Service, logSettingsSvc *logsettings.Service) *Services {
 	s := &Services{
 		Level:         level,
 		LevelSettings: levelSettings,
@@ -34,6 +40,9 @@ func NewServices(level *level.Service, levelSettings *levelsettings.Service, mee
 		Projects:      projects,
 		RPS:           rps,
 		Twitch:        twitchSvc,
+		Welcome:       welcomeSvc,
+		DefaultRole:   defaultRoleSvc,
+		LogSettings:   logSettingsSvc,
 	}
 	Global = s
 	return s

internal/db/services/welcome/service.go

@@ -0,0 +1,36 @@
+package welcome
+
+import (
+	"context"
+
+	"velox-bot/internal/db/repos/welcomerepo"
+)
+
+type Service struct {
+	repo *welcomerepo.Repo
+}
+
+func New(repo *welcomerepo.Repo) *Service {
+	return &Service{repo: repo}
+}
+
+func (s *Service) GetSettings(ctx context.Context, guildID int64) (*welcomerepo.Settings, error) {
+	return s.repo.GetSettings(ctx, guildID)
+}
+
+func (s *Service) SetChannel(ctx context.Context, guildID, channelID int64) error {
+	return s.repo.UpsertChannel(ctx, guildID, channelID)
+}
+
+func (s *Service) SetMessage(ctx context.Context, guildID int64, message string) error {
+	return s.repo.UpsertMessage(ctx, guildID, message)
+}
+
+func (s *Service) SetDM(ctx context.Context, guildID int64, dm string) error {
+	return s.repo.UpsertDM(ctx, guildID, dm)
+}
+
+func (s *Service) SetGIF(ctx context.Context, guildID int64, gifURL string) error {
+	return s.repo.UpsertGIF(ctx, guildID, gifURL)
+}
+

internal/events/event_handlers.go

@@ -11,6 +11,8 @@ import (
 )
 
 func HandleMessageCreate(s *discordgo.Session, m *discordgo.MessageCreate, services *services.Services) {
+	CacheMessageFromCreate(m)
+
 	if m.Author.Bot || m.GuildID == "" {
 		return
 	}

internal/events/logging.go

@@ -0,0 +1,376 @@
+package events
+
+import (
+	"fmt"
+	"log"
+	"slices"
+	"strings"
+	"sync"
+	"time"
+
+	"velox-bot/internal/db/services"
+	"velox-bot/internal/modlog"
+
+	"github.com/bwmarrin/discordgo"
+)
+
+type cachedMessage struct {
+	Content  string
+	AuthorID string
+}
+
+var messageCache sync.Map // map[messageID]cachedMessage
+
+func HandleMessageUpdateLog(s *discordgo.Session, m *discordgo.MessageUpdate, svc *services.Services) {
+	if s == nil || m == nil || m.Message == nil || m.GuildID == "" || svc == nil {
+		return
+	}
+	if m.Author != nil && m.Author.Bot {
+		return
+	}
+
+	before := ""
+	if m.BeforeUpdate != nil {
+		before = strings.TrimSpace(m.BeforeUpdate.Content)
+	}
+	if before == "" {
+		if prev, ok := getCachedMessage(m.ID); ok {
+			before = strings.TrimSpace(prev.Content)
+		}
+	}
+	after := strings.TrimSpace(m.Content)
+	if before == after {
+		return
+	}
+
+	jumpURL := fmt.Sprintf("https://discord.com/channels/%s/%s/%s", m.GuildID, m.ChannelID, m.ID)
+	authorMention := "Unknown"
+	if m.Author != nil {
+		authorMention = m.Author.Mention()
+	}
+
+	embed := &discordgo.MessageEmbed{
+		Title:       "Message Edited",
+		Color:       0xF1C40F,
+		Description: fmt.Sprintf("Author: %s\nChannel: <#%s>\n[Jump to message](%s)", authorMention, m.ChannelID, jumpURL),
+		Fields: []*discordgo.MessageEmbedField{
+			{Name: "Before", Value: truncateOrPlaceholder(before), Inline: false},
+			{Name: "After", Value: truncateOrPlaceholder(after), Inline: false},
+		},
+		Timestamp: time.Now().Format(time.RFC3339),
+	}
+	if err := modlog.Send(s, svc, m.GuildID, embed); err != nil {
+		log.Printf("log: failed to send message edit log: %v", err)
+	}
+
+	cacheMessage(m.ID, after, authorIDOrEmpty(m.Author))
+}
+
+func HandleMessageDeleteLog(s *discordgo.Session, m *discordgo.MessageDelete, svc *services.Services) {
+	if s == nil || m == nil || m.Message == nil || m.GuildID == "" || svc == nil {
+		return
+	}
+
+	authorID := ""
+	authorLabel := "Unknown"
+	content := ""
+	if m.BeforeDelete != nil {
+		if m.BeforeDelete.Author != nil {
+			authorID = m.BeforeDelete.Author.ID
+			authorLabel = m.BeforeDelete.Author.Mention()
+		}
+		content = strings.TrimSpace(m.BeforeDelete.Content)
+	}
+	if content == "" {
+		if prev, ok := getCachedMessage(m.ID); ok {
+			content = strings.TrimSpace(prev.Content)
+			if authorID == "" && prev.AuthorID != "" {
+				authorID = prev.AuthorID
+				authorLabel = "<@" + prev.AuthorID + ">"
+			}
+		}
+	}
+	if authorID == "" && m.Author != nil {
+		authorID = m.Author.ID
+		authorLabel = m.Author.Mention()
+	}
+	if authorID == "" {
+		authorLabel = "Unknown"
+	}
+
+	embed := &discordgo.MessageEmbed{
+		Title:       "Message Deleted",
+		Color:       0xE74C3C,
+		Description: fmt.Sprintf("Author: %s\nChannel: <#%s>\nMessage ID: `%s`", authorLabel, m.ChannelID, m.ID),
+		Fields: []*discordgo.MessageEmbedField{
+			{Name: "Content", Value: truncateOrPlaceholder(content), Inline: false},
+		},
+		Timestamp: time.Now().Format(time.RFC3339),
+	}
+	if err := modlog.Send(s, svc, m.GuildID, embed); err != nil {
+		log.Printf("log: failed to send message delete log: %v", err)
+	}
+	deleteCachedMessage(m.ID)
+}
+
+func HandleGuildMemberAddLog(s *discordgo.Session, m *discordgo.GuildMemberAdd, svc *services.Services) {
+	if s == nil || m == nil || m.Member == nil || m.User == nil || m.GuildID == "" || svc == nil {
+		return
+	}
+	embed := &discordgo.MessageEmbed{
+		Title:       "Member Joined",
+		Color:       0x2ECC71,
+		Description: fmt.Sprintf("%s joined the server.\nUser ID: `%s`", m.User.Mention(), m.User.ID),
+		Timestamp:   time.Now().Format(time.RFC3339),
+	}
+	if err := modlog.Send(s, svc, m.GuildID, embed); err != nil {
+		log.Printf("log: failed to send member join log: %v", err)
+	}
+}
+
+func HandleGuildMemberRemoveLog(s *discordgo.Session, m *discordgo.GuildMemberRemove, svc *services.Services) {
+	if s == nil || m == nil || m.Member == nil || m.User == nil || m.GuildID == "" || svc == nil {
+		return
+	}
+
+	// Try to classify this leave as a kick via recent audit log.
+	kickEntry, kickMod := findRecentAuditEntryForTarget(s, m.GuildID, m.User.ID, discordgo.AuditLogActionMemberKick)
+	title := "Member Left"
+	color := 0x95A5A6
+	description := fmt.Sprintf("%s left the server.\nUser ID: `%s`", m.User.Mention(), m.User.ID)
+	if kickEntry != nil {
+		title = "Member Kicked"
+		color = 0xE67E22
+		description = fmt.Sprintf("%s was kicked.\nUser ID: `%s`", m.User.Mention(), m.User.ID)
+		if kickMod != nil {
+			description += "\nModerator: " + kickMod.Mention()
+		}
+		if strings.TrimSpace(kickEntry.Reason) != "" {
+			description += "\nReason: " + kickEntry.Reason
+		}
+	}
+
+	embed := &discordgo.MessageEmbed{
+		Title:       title,
+		Color:       color,
+		Description: description,
+		Timestamp:   time.Now().Format(time.RFC3339),
+	}
+	if err := modlog.Send(s, svc, m.GuildID, embed); err != nil {
+		log.Printf("log: failed to send member remove log: %v", err)
+	}
+}
+
+func HandleGuildMemberUpdateLog(s *discordgo.Session, m *discordgo.GuildMemberUpdate, svc *services.Services) {
+	if s == nil || m == nil || m.Member == nil || m.User == nil || m.GuildID == "" || svc == nil || m.BeforeUpdate == nil {
+		return
+	}
+
+	added := diffRoleIDs(m.BeforeUpdate.Roles, m.Roles)
+	removed := diffRoleIDs(m.Roles, m.BeforeUpdate.Roles)
+	if len(added) == 0 && len(removed) == 0 {
+		return
+	}
+
+	fields := make([]*discordgo.MessageEmbedField, 0, 2)
+	if len(added) > 0 {
+		fields = append(fields, &discordgo.MessageEmbedField{
+			Name:   "Roles Added",
+			Value:  joinRoleMentions(added),
+			Inline: false,
+		})
+	}
+	if len(removed) > 0 {
+		fields = append(fields, &discordgo.MessageEmbedField{
+			Name:   "Roles Removed",
+			Value:  joinRoleMentions(removed),
+			Inline: false,
+		})
+	}
+
+	embed := &discordgo.MessageEmbed{
+		Title:       "Member Roles Updated",
+		Color:       0x3498DB,
+		Description: fmt.Sprintf("Member: %s (`%s`)", m.User.Mention(), m.User.ID),
+		Fields:      fields,
+		Timestamp:   time.Now().Format(time.RFC3339),
+	}
+	if err := modlog.Send(s, svc, m.GuildID, embed); err != nil {
+		log.Printf("log: failed to send member update log: %v", err)
+	}
+}
+
+func HandleGuildBanAddLog(s *discordgo.Session, m *discordgo.GuildBanAdd, svc *services.Services) {
+	if s == nil || m == nil || m.User == nil || m.GuildID == "" || svc == nil {
+		return
+	}
+
+	entry, moderator := findRecentAuditEntryForTarget(s, m.GuildID, m.User.ID, discordgo.AuditLogActionMemberBanAdd)
+	desc := fmt.Sprintf("%s was banned.\nUser ID: `%s`", m.User.Mention(), m.User.ID)
+	if moderator != nil {
+		desc += "\nModerator: " + moderator.Mention()
+	}
+	if entry != nil && strings.TrimSpace(entry.Reason) != "" {
+		desc += "\nReason: " + entry.Reason
+	}
+
+	embed := &discordgo.MessageEmbed{
+		Title:       "Member Banned",
+		Color:       0xC0392B,
+		Description: desc,
+		Timestamp:   time.Now().Format(time.RFC3339),
+	}
+	if err := modlog.Send(s, svc, m.GuildID, embed); err != nil {
+		log.Printf("log: failed to send ban add log: %v", err)
+	}
+}
+
+func HandleGuildBanRemoveLog(s *discordgo.Session, m *discordgo.GuildBanRemove, svc *services.Services) {
+	if s == nil || m == nil || m.User == nil || m.GuildID == "" || svc == nil {
+		return
+	}
+
+	entry, moderator := findRecentAuditEntryForTarget(s, m.GuildID, m.User.ID, discordgo.AuditLogActionMemberBanRemove)
+	desc := fmt.Sprintf("%s was unbanned.\nUser ID: `%s`", m.User.Mention(), m.User.ID)
+	if moderator != nil {
+		desc += "\nModerator: " + moderator.Mention()
+	}
+	if entry != nil && strings.TrimSpace(entry.Reason) != "" {
+		desc += "\nReason: " + entry.Reason
+	}
+
+	embed := &discordgo.MessageEmbed{
+		Title:       "Member Unbanned",
+		Color:       0x27AE60,
+		Description: desc,
+		Timestamp:   time.Now().Format(time.RFC3339),
+	}
+	if err := modlog.Send(s, svc, m.GuildID, embed); err != nil {
+		log.Printf("log: failed to send ban remove log: %v", err)
+	}
+}
+
+func findRecentAuditEntryForTarget(s *discordgo.Session, guildID, targetID string, action discordgo.AuditLogAction) (*discordgo.AuditLogEntry, *discordgo.User) {
+	if s == nil || guildID == "" || targetID == "" {
+		return nil, nil
+	}
+	logs, err := s.GuildAuditLog(guildID, "", "", int(action), 10)
+	if err != nil || logs == nil {
+		return nil, nil
+	}
+
+	var chosen *discordgo.AuditLogEntry
+	now := time.Now().UTC()
+	for _, e := range logs.AuditLogEntries {
+		if e == nil || e.TargetID != targetID || e.ActionType == nil || *e.ActionType != action {
+			continue
+		}
+		ts, err := discordgo.SnowflakeTimestamp(e.ID)
+		if err != nil {
+			continue
+		}
+		// Keep only very recent entries to reduce false positives.
+		if now.Sub(ts) > 2*time.Minute {
+			continue
+		}
+		chosen = e
+		break
+	}
+	if chosen == nil {
+		return nil, nil
+	}
+
+	for _, u := range logs.Users {
+		if u != nil && u.ID == chosen.UserID {
+			return chosen, u
+		}
+	}
+	return chosen, nil
+}
+
+func truncateOrPlaceholder(s string) string {
+	v := strings.TrimSpace(s)
+	if v == "" {
+		return "*empty*"
+	}
+	if len(v) <= 1000 {
+		return v
+	}
+	return v[:997] + "..."
+}
+
+func diffRoleIDs(base, compare []string) []string {
+	out := make([]string, 0)
+	for _, id := range base {
+		if id == "" {
+			continue
+		}
+		if !slices.Contains(compare, id) {
+			out = append(out, id)
+		}
+	}
+	return out
+}
+
+func joinRoleMentions(roleIDs []string) string {
+	if len(roleIDs) == 0 {
+		return "*none*"
+	}
+	const max = 12
+	parts := make([]string, 0, len(roleIDs))
+	for idx, id := range roleIDs {
+		if idx >= max {
+			parts = append(parts, fmt.Sprintf("... and %d more", len(roleIDs)-max))
+			break
+		}
+		parts = append(parts, "<@&"+id+">")
+	}
+	return strings.Join(parts, ", ")
+}
+
+func CacheMessageFromCreate(m *discordgo.MessageCreate) {
+	if m == nil || m.Message == nil || m.ID == "" {
+		return
+	}
+	cacheMessage(m.ID, strings.TrimSpace(m.Content), authorIDOrEmpty(m.Author))
+}
+
+func cacheMessage(messageID, content, authorID string) {
+	if messageID == "" {
+		return
+	}
+	messageCache.Store(messageID, cachedMessage{
+		Content:  content,
+		AuthorID: authorID,
+	})
+}
+
+func getCachedMessage(messageID string) (cachedMessage, bool) {
+	if messageID == "" {
+		return cachedMessage{}, false
+	}
+	raw, ok := messageCache.Load(messageID)
+	if !ok {
+		return cachedMessage{}, false
+	}
+	msg, ok := raw.(cachedMessage)
+	if !ok {
+		return cachedMessage{}, false
+	}
+	return msg, true
+}
+
+func deleteCachedMessage(messageID string) {
+	if messageID == "" {
+		return
+	}
+	messageCache.Delete(messageID)
+}
+
+func authorIDOrEmpty(u *discordgo.User) string {
+	if u == nil {
+		return ""
+	}
+	return u.ID
+}
+

internal/events/onboarding.go

@@ -0,0 +1,163 @@
+package events
+
+import (
+	"context"
+	"fmt"
+	"log"
+	"strconv"
+	"strings"
+	"time"
+
+	"velox-bot/internal/db/services"
+
+	"github.com/bwmarrin/discordgo"
+)
+
+// HandleBotAddedOnGuild applies safe defaults when this bot is added to a guild
+// and DMs setup instructions to the inviter (or guild owner fallback).
+func HandleBotAddedOnGuild(s *discordgo.Session, m *discordgo.GuildMemberAdd, svc *services.Services) {
+	if s == nil || m == nil || m.Member == nil || m.User == nil || svc == nil {
+		return
+	}
+	if s.State == nil || s.State.User == nil {
+		return
+	}
+	if m.User.ID != s.State.User.ID {
+		return
+	}
+
+	guildID64, err := strconv.ParseInt(m.GuildID, 10, 64)
+	if err != nil {
+		return
+	}
+
+	// Treat an existing logsettings row as "already onboarded once".
+	alreadyOnboarded := false
+	if svc.LogSettings != nil {
+		exists, err := svc.LogSettings.HasSettings(context.Background(), guildID64)
+		if err == nil {
+			alreadyOnboarded = exists
+		}
+	}
+	if alreadyOnboarded {
+		return
+	}
+
+	// Explicitly disable toggleable systems by default.
+	if svc.LevelSettings != nil {
+		if err := svc.LevelSettings.SetLevelSystemEnabled(context.Background(), guildID64, false); err != nil {
+			log.Printf("onboarding: failed to set default level state for guild %s: %v", m.GuildID, err)
+		}
+	}
+	if svc.LogSettings != nil {
+		if err := svc.LogSettings.SetEnabled(context.Background(), guildID64, false); err != nil {
+			log.Printf("onboarding: failed to set default log state for guild %s: %v", m.GuildID, err)
+		}
+	}
+
+	recipientID := findRecentBotAdderID(s, m.GuildID)
+	if recipientID == "" {
+		recipientID = guildOwnerID(s, m.GuildID)
+	}
+	if recipientID == "" {
+		log.Printf("onboarding: unable to resolve DM recipient for guild %s", m.GuildID)
+		return
+	}
+
+	dmCh, err := s.UserChannelCreate(recipientID)
+	if err != nil {
+		log.Printf("onboarding: failed creating DM for user %s: %v", recipientID, err)
+		return
+	}
+
+	guildName := m.GuildID
+	if g, err := s.State.Guild(m.GuildID); err == nil && g != nil && strings.TrimSpace(g.Name) != "" {
+		guildName = g.Name
+	} else if g, err := s.Guild(m.GuildID); err == nil && g != nil && strings.TrimSpace(g.Name) != "" {
+		guildName = g.Name
+	}
+
+	embed := &discordgo.MessageEmbed{
+		Title: "Thanks for adding Velox Bot!",
+		Color: 0x5865F2,
+		Description: fmt.Sprintf(
+			"Server: **%s**\n\nFor safety, toggleable systems start **disabled by default**.\nUse these commands in your server to enable features:",
+			guildName,
+		),
+		Fields: []*discordgo.MessageEmbedField{
+			{
+				Name: "Level System",
+				Value: "`/slvl toggle`",
+				Inline: false,
+			},
+			{
+				Name: "Logging System",
+				Value: "" +
+					"`/config setlogchannel channel:#channel`\n" +
+					"`/config enablelogging`",
+				Inline: false,
+			},
+			{
+				Name: "Welcome System",
+				Value: "" +
+					"`/config setwelcomechannel channel:#channel`\n" +
+					"`/config setwelcomemessage message:\"...\"`\n" +
+					"`/config setwelcomedm message:\"...\"`",
+				Inline: false,
+			},
+		},
+		Footer: &discordgo.MessageEmbedFooter{
+			Text: "Tip: run /help in any server channel for the full command reference.",
+		},
+		Timestamp: time.Now().Format(time.RFC3339),
+	}
+
+	if _, err := s.ChannelMessageSendEmbed(dmCh.ID, embed); err != nil {
+		log.Printf("onboarding: failed sending setup DM to user %s: %v", recipientID, err)
+	}
+}
+
+func findRecentBotAdderID(s *discordgo.Session, guildID string) string {
+	if s == nil || s.State == nil || s.State.User == nil {
+		return ""
+	}
+	logs, err := s.GuildAuditLog(guildID, "", "", int(discordgo.AuditLogActionBotAdd), 10)
+	if err != nil || logs == nil {
+		return ""
+	}
+
+	botID := s.State.User.ID
+	now := time.Now().UTC()
+	for _, entry := range logs.AuditLogEntries {
+		if entry == nil || entry.TargetID != botID || entry.ActionType == nil || *entry.ActionType != discordgo.AuditLogActionBotAdd {
+			continue
+		}
+		ts, err := discordgo.SnowflakeTimestamp(entry.ID)
+		if err != nil {
+			continue
+		}
+		if now.Sub(ts) > 10*time.Minute {
+			continue
+		}
+		if entry.UserID != "" {
+			return entry.UserID
+		}
+	}
+	return ""
+}
+
+func guildOwnerID(s *discordgo.Session, guildID string) string {
+	if s == nil || guildID == "" {
+		return ""
+	}
+	if s.State != nil {
+		if g, err := s.State.Guild(guildID); err == nil && g != nil && g.OwnerID != "" {
+			return g.OwnerID
+		}
+	}
+	if g, err := s.Guild(guildID); err == nil && g != nil {
+		return g.OwnerID
+	}
+	return ""
+}
+

internal/events/welcome.go

@@ -0,0 +1,133 @@
+package events
+
+import (
+	"context"
+	"log"
+	"strconv"
+	"strings"
+
+	"velox-bot/internal/db/services"
+
+	"github.com/bwmarrin/discordgo"
+)
+
+// HandleGuildMemberAdd sends a configurable welcome message in a guild channel
+// and an optional configurable DM to the joining user.
+func HandleGuildMemberAdd(s *discordgo.Session, m *discordgo.GuildMemberAdd, svc *services.Services) {
+	if s == nil || m == nil || svc == nil || svc.Welcome == nil {
+		return
+	}
+	if m.User == nil {
+		return
+	}
+
+	ctx := context.Background()
+	guildID := mustParseInt64(m.GuildID)
+
+	settings, err := svc.Welcome.GetSettings(ctx, guildID)
+	if err != nil {
+		log.Printf("welcome: failed to load settings for guild %s: %v", m.GuildID, err)
+		return
+	}
+	hasWelcomeChannel := settings != nil && settings.ChannelID != 0
+
+	memberMention := m.User.Mention()
+
+	// Resolve guild/server name and user avatar for placeholders / visuals.
+	guildName := ""
+	userAvatarURL := ""
+	if g, err := s.State.Guild(m.GuildID); err == nil && g != nil {
+		guildName = g.Name
+	} else if g, err := s.Guild(m.GuildID); err == nil && g != nil {
+		guildName = g.Name
+	}
+	if m.User.Avatar != "" {
+		userAvatarURL = discordgo.EndpointUserAvatar(m.User.ID, m.User.Avatar)
+	}
+
+	if hasWelcomeChannel {
+		// Build guild welcome message.
+		channelID := strconv.FormatInt(settings.ChannelID, 10)
+		welcomeMsg := strings.TrimSpace(settings.WelcomeMessage)
+		if welcomeMsg == "" {
+			// Default message when none configured.
+			// "<user>! Welcome to <server>! Have fun!"
+			welcomeMsg = "<user>! Welcome to <server>! Have fun!"
+		}
+		welcomeMsg = strings.ReplaceAll(welcomeMsg, "{user}", memberMention)
+		if guildName != "" {
+			welcomeMsg = strings.ReplaceAll(welcomeMsg, "{server}", guildName)
+			welcomeMsg = strings.ReplaceAll(welcomeMsg, "<server>", guildName)
+		}
+		welcomeMsg = strings.ReplaceAll(welcomeMsg, "<user>", memberMention)
+
+		embed := &discordgo.MessageEmbed{
+			Title:       "👋 Welcome!",
+			Description: welcomeMsg,
+			Color:       0xFFA500,
+			Footer: &discordgo.MessageEmbedFooter{
+				Text: "ID: " + m.User.ID,
+			},
+		}
+		if userAvatarURL != "" {
+			embed.Author = &discordgo.MessageEmbedAuthor{
+				Name:    m.User.Username,
+				IconURL: userAvatarURL,
+			}
+			embed.Thumbnail = &discordgo.MessageEmbedThumbnail{
+				URL: userAvatarURL,
+			}
+		}
+		gif := strings.TrimSpace(settings.WelcomeGIFURL)
+		if gif == "" {
+			// Default GIF when none configured.
+			gif = "https://images-ext-1.discordapp.net/external/uJ6XfdK2WwDnei3RmNWUqSiOVboC4mK9r78TtgVE_9g/https/media.giphy.com/media/XD9o33QG9BoMis7iM4/giphy.gif"
+		}
+		embed.Image = &discordgo.MessageEmbedImage{URL: gif}
+
+		if _, err := s.ChannelMessageSendComplex(channelID, &discordgo.MessageSend{
+			Content: memberMention,
+			Embed:   embed,
+		}); err != nil {
+			log.Printf("welcome: failed to send channel welcome in guild %s: %v", m.GuildID, err)
+		}
+	}
+
+	// Optional DM.
+	dmText := ""
+	if settings != nil {
+		dmText = strings.TrimSpace(settings.WelcomeDM)
+	}
+	if dmText == "" {
+		// Default DM when none configured.
+		// "Welcome to <server>! Have fun!"
+		dmText = "Welcome to <server>! Have fun!"
+	}
+	dmText = strings.ReplaceAll(dmText, "{user}", memberMention)
+	if guildName != "" {
+		dmText = strings.ReplaceAll(dmText, "{server}", guildName)
+		dmText = strings.ReplaceAll(dmText, "<server>", guildName)
+	}
+
+	dmCh, err := s.UserChannelCreate(m.User.ID)
+	if err != nil {
+		log.Printf("welcome: failed to create DM channel for user %s: %v", m.User.ID, err)
+		return
+	}
+	if _, err := s.ChannelMessageSend(dmCh.ID, dmText); err != nil {
+		log.Printf("welcome: failed to send DM welcome to user %s: %v", m.User.ID, err)
+	}
+
+	// Default role assignment.
+	if svc.DefaultRole != nil {
+		roleID, err := svc.DefaultRole.GetRole(ctx, guildID)
+		if err != nil {
+			log.Printf("defaultrole: failed to get default role for guild %s: %v", m.GuildID, err)
+		} else if roleID != 0 {
+			if err := s.GuildMemberRoleAdd(m.GuildID, m.User.ID, strconv.FormatInt(roleID, 10)); err != nil {
+				log.Printf("defaultrole: failed to assign role %d to user %s in guild %s: %v", roleID, m.User.ID, m.GuildID, err)
+			}
+		}
+	}
+}
+

internal/modlog/modlog.go

@@ -0,0 +1,30 @@
+package modlog
+
+import (
+	"context"
+	"strconv"
+
+	"velox-bot/internal/db/services"
+
+	"github.com/bwmarrin/discordgo"
+)
+
+func Send(s *discordgo.Session, svc *services.Services, guildID string, embed *discordgo.MessageEmbed) error {
+	if s == nil || svc == nil || svc.LogSettings == nil || embed == nil || guildID == "" {
+		return nil
+	}
+
+	gid, err := strconv.ParseInt(guildID, 10, 64)
+	if err != nil {
+		return nil
+	}
+
+	cfg, err := svc.LogSettings.GetSettings(context.Background(), gid)
+	if err != nil || cfg == nil || !cfg.IsEnabled || cfg.ChannelID == 0 {
+		return err
+	}
+
+	_, err = s.ChannelMessageSendEmbed(strconv.FormatInt(cfg.ChannelID, 10), embed)
+	return err
+}
+

main.go

@@ -15,17 +15,22 @@ import (
 	"velox-bot/internal/db/repos/rpsrepo"
 	"velox-bot/internal/db/repos/schedulerepo"
 	"velox-bot/internal/db/repos/settingsrepo"
+	"velox-bot/internal/db/repos/welcomerepo"
 	"velox-bot/internal/db/repos/twitchrepo"
 	"velox-bot/internal/db/repos/usersettingsrepo"
+	"velox-bot/internal/db/repos/defaultrolerepo"
 	"velox-bot/internal/db/services"
 	"velox-bot/internal/db/services/level"
 	"velox-bot/internal/db/services/levelsettings"
+	"velox-bot/internal/db/services/logsettings"
 	"velox-bot/internal/db/services/meeting"
 	"velox-bot/internal/db/services/projects"
 	"velox-bot/internal/db/services/rps"
 	"velox-bot/internal/db/services/schedule"
 	"velox-bot/internal/db/services/twitch"
 	"velox-bot/internal/db/services/usersettings"
+	"velox-bot/internal/db/services/welcome"
+	"velox-bot/internal/db/services/defaultrole"
 )
 
 func main() {
@@ -48,16 +53,21 @@ func main() {
 	projectsRepo := projectsrepo.NewRepo(db)
 	scheduleRepo := schedulerepo.NewRepo(db)
 	userSettingsRepo := usersettingsrepo.NewRepo(db)
+	welcomeRepo := welcomerepo.NewRepo(db)
 	twitchRepo := twitchrepo.NewRepo(db)
+	defaultRoleRepo := defaultrolerepo.NewRepo(db)
 	levelService := level.New(levelRepo, settingsRepo)
 	levelSettingsService := levelsettings.New(settingsRepo)
+	logSettingsService := logsettings.New(settingsRepo)
 	meetingService := meeting.New(settingsRepo)
 	scheduleService := schedule.New(scheduleRepo)
 	userSettingsService := usersettings.New(userSettingsRepo)
 	projectsService := projects.New(projectsRepo)
 	rpsService := rps.New(rpsRepo)
 	twitchService := twitch.New(twitchRepo, config.TwitchClientID)
-	services := services.NewServices(levelService, levelSettingsService, meetingService, scheduleService, userSettingsService, projectsService, rpsService, twitchService)
+	welcomeService := welcome.New(welcomeRepo)
+	defaultRoleService := defaultrole.New(defaultRoleRepo)
+	services := services.NewServices(levelService, levelSettingsService, meetingService, scheduleService, userSettingsService, projectsService, rpsService, twitchService, welcomeService, defaultRoleService, logSettingsService)
 
 	bot, err := bot.NewBot(config.BotToken, config.AppID, config.GuildID, config.LavalinkHost, config.LavalinkPass, commands.AllCommands, services)
 	if err != nil {

schema.sql

@@ -19,8 +19,6 @@ CREATE TABLE IF NOT EXISTS twitch (
 CREATE TABLE IF NOT EXISTS levelsettings (
     guild_id BIGINT PRIMARY KEY,
     levelsys BOOLEAN NOT NULL DEFAULT FALSE,
-    role BIGINT,
-    levelreq INT,
     message TEXT
 );