feat: leveling system refractor

internal/commands/level/public/rank.go

@@ -0,0 +1,94 @@
+package public
+
+import (
+	"bytes"
+	"context"
+	"strconv"
+
+	"velox-bot/internal/commands/level/shared"
+	"velox-bot/internal/db/services"
+	"velox-bot/internal/rankcard"
+
+	"github.com/bwmarrin/discordgo"
+)
+
+var Rank = &discordgo.ApplicationCommand{
+	Name:        "rank",
+	Description: "Get your level card",
+	Options: []*discordgo.ApplicationCommandOption{
+		{
+			Type:        discordgo.ApplicationCommandOptionUser,
+			Name:        "user",
+			Description: "The user to get the rank card of",
+			Required:    false,
+		},
+	},
+}
+
+func RankHandler(s *discordgo.Session, i *discordgo.InteractionCreate) {
+	if !shared.RequireLevelServices(s, i) {
+		return
+	}
+	if i.GuildID != "" && !shared.RequireLevelSystemEnabled(s, i) {
+		return
+	}
+
+	// Determine target user: option or caller.
+	target := i.User
+	if i.Member != nil && i.Member.User != nil {
+		target = i.Member.User
+	}
+	if len(i.ApplicationCommandData().Options) > 0 {
+		if u := i.ApplicationCommandData().Options[0].UserValue(s); u != nil {
+			target = u
+		}
+	}
+	if target == nil {
+		return
+	}
+
+	guildID, ok := shared.ParseGuildID(s, i)
+	if !ok {
+		return
+	}
+	userID, err := strconv.ParseInt(target.ID, 10, 64)
+	if err != nil {
+		shared.RespondEphemeral(s, i, "Invalid user ID.")
+		return
+	}
+
+	ctx := context.Background()
+	lvl, err := services.Global.Level.GetLevel(ctx, guildID, userID)
+	if err != nil {
+		shared.RespondEphemeral(s, i, "Failed to load level.")
+		return
+	}
+
+	percent := float64(lvl.XP) / 100.0
+	avatarURL := target.AvatarURL("256")
+
+	pngBytes, err := rankcard.RenderPNG(ctx, rankcard.Data{
+		Name:    target.Username,
+		Level:   lvl.Level,
+		XP:      lvl.XP,
+		Percent: percent,
+		Avatar:  avatarURL,
+	})
+	if err != nil {
+		shared.RespondEphemeral(s, i, "Failed to render rank card.")
+		return
+	}
+
+	_ = s.InteractionRespond(i.Interaction, &discordgo.InteractionResponse{
+		Type: discordgo.InteractionResponseChannelMessageWithSource,
+		Data: &discordgo.InteractionResponseData{
+			Files: []*discordgo.File{
+				{
+					Name:   "levelcard.png",
+					Reader: bytes.NewReader(pngBytes),
+				},
+			},
+		},
+	})
+}
+