feat: leveling system

internal/db/repos/levelrepo/repo.go

@@ -56,9 +56,9 @@ func (r *Repo) UpsertLevel(ctx context.Context, lvl *Level) error {
 func (r *Repo) SetLevel(ctx context.Context, guildID, userID int64, level int) error {
 	const q = `
 		INSERT INTO levels (guild, user_id, level, xp)
-		VALUES ($1, $2, $3, 99)
+		VALUES ($1, $2, $3, 0)
 		ON CONFLICT (guild, user_id)
-		DO UPDATE SET level = EXCLUDED.level, xp = 99
+		DO UPDATE SET level = EXCLUDED.level, xp = 0
 	`
 	_, err := r.db.ExecContext(ctx, q, guildID, userID, level)
 	return err

internal/db/repos/settingsrepo/repo.go

@@ -9,6 +9,12 @@ type Repo struct {
 	db *sql.DB
 }
 
+type LevelReward struct {
+	GuildID int64
+	Level   int
+	RoleID  int64
+}
+
 func NewRepo(db *sql.DB) *Repo {
 	return &Repo{db: db}
 }
@@ -95,6 +101,34 @@ func (r *Repo) SetRoleRewardForLevel(ctx context.Context, guildID int64, level i
 	return err
 }
 
+func (r *Repo) ListRoleRewards(ctx context.Context, guildID int64, limit int) ([]*LevelReward, error) {
+	const q = `
+		SELECT levelreq, role
+		FROM levelrewards
+		WHERE guild_id = $1
+		ORDER BY levelreq ASC
+		LIMIT $2
+	`
+	rows, err := r.db.QueryContext(ctx, q, guildID, limit)
+	if err != nil {
+		return nil, err
+	}
+	defer rows.Close()
+
+	out := make([]*LevelReward, 0, limit)
+	for rows.Next() {
+		rw := &LevelReward{GuildID: guildID}
+		if err := rows.Scan(&rw.Level, &rw.RoleID); err != nil {
+			return nil, err
+		}
+		out = append(out, rw)
+	}
+	if err := rows.Err(); err != nil {
+		return nil, err
+	}
+	return out, nil
+}
+
 func (r *Repo) SetLevelUpChannel(ctx context.Context, guildID int64, channelID int64) error {
 	const q = `
 		INSERT INTO levelup (guild_id, levelup_channel_id)