package help

import (
	"log"

	"github.com/bwmarrin/discordgo"
)

var Help = &discordgo.ApplicationCommand{
	Name:        "help",
	Description: "Get help with the bot",
}

func HelpHandler(s *discordgo.Session, i *discordgo.InteractionCreate) {
	s.InteractionRespond(i.Interaction, &discordgo.InteractionResponse{
		Type: discordgo.InteractionResponseChannelMessageWithSource,
		Data: &discordgo.InteractionResponseData{
			Content: "Check your DMs for help.",
			Flags:   discordgo.MessageFlagsEphemeral,
		},
	})

	userID := ""

	// check if command is run in a guild
	if i.Member != nil {
		userID = i.Member.User.ID
	} else {
		userID = i.Interaction.User.ID
	}

	dmChannel, err := s.UserChannelCreate(userID)
	if err != nil {
		log.Printf("Error creating DM channel: %v", err)
		return
	}

	author := discordgo.MessageEmbedAuthor{
		Name: "Velox Bot",
		URL:  "https://gitea.fernandovideira.com/FernandoJVideira/velox-bot",
	}

	embed := &discordgo.MessageEmbed{
		Title:       "Velox Bot Help",
		Description: "Command reference. Some commands require server permissions or roles.",
		Color:       0xFFA500,
		Fields: []*discordgo.MessageEmbedField{
			{
				Name: "Fun",
				Value: "" +
					"`/ping` — Pong!\n" +
					"`/joke [type]` — Random joke (optional category)\n" +
					"`/coinflip` — Flip a coin\n" +
					"`/dice <expr>` — Roll dice (e.g. `d20`, `2d20+1`, `2#d20+1`)\n" +
					"`/rps <hand>` — Rock Paper Scissors (server only)\n" +
					"`/rpsstats` — Your RPS score (server only)\n" +
					"`/rpsleaderboard` — Top RPS scores (server only)",
			},
			{
				Name: "Music (requires **DJ** role)",
				Value: "" +
					"`/play <query>` — Play a song (search or URL)\n" +
					"`/queue` — Show the current queue\n" +
					"`/volume <0-150>` — Set playback volume",
			},
			{
				Name: "Scheduling (1:1 sessions)",
				Value: "" +
					"`/schedule create user:@someone datetime:\"YYYY-MM-DD HH:MM\" [description]` — Create a session\n" +
					"`/schedule list` — List your upcoming sessions\n" +
					"`/schedule reschedule id:<id> datetime:\"YYYY-MM-DD HH:MM\"` — Request a new time\n\n" +
					"Invites are sent via DM; react with ✅ / ❌ / 🔁 to respond.",
			},
			{
				Name: "Timezone",
				Value: "" +
					"`/timezone set <IANA>` — Set your timezone (e.g. `Europe/Lisbon`)\n" +
					"`/timezone show` — Show your timezone",
			},
			{
				Name: "Projects",
				Value: "" +
					"`/projects list` — List active projects\n" +
					"`/projects create name:\"...\" [description]` — Create a project (**Manage Server**)\n" +
					"`/projects add-helper project-id:<id> user:@someone` — Add helper (**Manage Server**)",
			},
			{
				Name: "Meetings (**Manage Server**)",
				Value: "" +
					"`/meeting set-lobby channel:#voice` — Set voice lobby used to create meetings\n" +
					"`/meeting lock` — Lock your meeting room\n" +
					"`/meeting lock-private` — Lock + hide your meeting room\n" +
					"`/meeting unlock` — Unlock your meeting room\n" +
					"`/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: "" +
					"`/slvl toggle` — Enable/disable leveling (**Manage Server**)\n" +
					"`/slvl set user:@someone level:<n>` — Set user level (**Manage Server**)\n" +
					"`/slvl set-channel channel:#channel` — Level-up message channel (**Manage Server**)\n" +
					"`/slvl set-message message:\"...\"` — Custom level-up message (**Manage Server**)\n" +
					"`/slvl set-reward level:<n> role:@role` — Role rewards (**Manage Server**)\n" +
					"`/rank [user]` — Your rank card (server only)\n" +
					"`/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",
			},
		},
		Author: &author,
	}

	s.ChannelMessageSendEmbed(dmChannel.ID, embed)
}