feat: leveling system refractor

internal/commands/level/public/leaderboard.go

@@ -0,0 +1,73 @@
+package public
+
+import (
+	"context"
+	"fmt"
+	"strconv"
+
+	"velox-bot/internal/commands/level/shared"
+	"velox-bot/internal/db/services"
+
+	"github.com/bwmarrin/discordgo"
+)
+
+var Leaderboard = &discordgo.ApplicationCommand{
+	Name:        "leaderboard",
+	Description: "Top 10 levels in this server",
+}
+
+func LeaderboardHandler(s *discordgo.Session, i *discordgo.InteractionCreate) {
+	if !shared.RequireGuild(s, i) {
+		return
+	}
+	if !shared.RequireLevelServices(s, i) {
+		return
+	}
+	if !shared.RequireLevelSystemEnabled(s, i) {
+		return
+	}
+
+	guildID, ok := shared.ParseGuildID(s, i)
+	if !ok {
+		return
+	}
+
+	ctx := context.Background()
+	top, err := services.Global.Level.TopLevels(ctx, guildID, 10)
+	if err != nil {
+		shared.RespondEphemeral(s, i, "Failed to load leaderboard.")
+		return
+	}
+	if len(top) == 0 {
+		shared.RespondEphemeral(s, i, "No leaderboard data yet.")
+		return
+	}
+
+	fields := make([]*discordgo.MessageEmbedField, 0, len(top))
+	for idx, entry := range top {
+		display := fmt.Sprintf("<@%d>", entry.UserID)
+		if u, err := s.User(strconv.FormatInt(entry.UserID, 10)); err == nil && u != nil && u.Username != "" {
+			display = u.Username
+		}
+		fields = append(fields, &discordgo.MessageEmbedField{
+			Name:   fmt.Sprintf("%d. %s", idx+1, display),
+			Value:  fmt.Sprintf("Level: **%d** | XP: **%d**", entry.Level, entry.XP),
+			Inline: false,
+		})
+	}
+
+	embed := &discordgo.MessageEmbed{
+		Title:       "Leaderboard",
+		Description: fmt.Sprintf("These are the top %d users in the server", len(top)),
+		Fields:      fields,
+		Color:       0xF59E0B,
+	}
+
+	_ = s.InteractionRespond(i.Interaction, &discordgo.InteractionResponse{
+		Type: discordgo.InteractionResponseChannelMessageWithSource,
+		Data: &discordgo.InteractionResponseData{
+			Embeds: []*discordgo.MessageEmbed{embed},
+		},
+	})
+}
+