panel v0.9.1 — open-source game server manager

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

controller/internal/db/panel_settings.go

@@ -0,0 +1,53 @@
+package db
+
+import (
+	"context"
+	"fmt"
+)
+
+// GetSetting returns the value of a panel_settings key, or empty string if
+// the key isn't present (caller treats empty as "unset / disabled / default").
+func (db *DB) GetSetting(ctx context.Context, key string) (string, error) {
+	var v string
+	err := db.pool.QueryRow(ctx, `SELECT value FROM panel_settings WHERE key = $1`, key).Scan(&v)
+	if err != nil {
+		// pgx returns ErrNoRows when key missing — surface as empty, not error.
+		// Settings are always optional from the caller's POV.
+		if err.Error() == "no rows in result set" {
+			return "", nil
+		}
+		return "", fmt.Errorf("get setting %q: %w", key, err)
+	}
+	return v, nil
+}
+
+// SetSetting upserts a panel_settings row.
+func (db *DB) SetSetting(ctx context.Context, key, value string) error {
+	_, err := db.pool.Exec(ctx, `
+		INSERT INTO panel_settings (key, value) VALUES ($1, $2)
+		ON CONFLICT (key) DO UPDATE SET value = EXCLUDED.value, updated_at = NOW()
+	`, key, value)
+	if err != nil {
+		return fmt.Errorf("set setting %q: %w", key, err)
+	}
+	return nil
+}
+
+// ListSettings dumps every key→value, used by the admin settings page to
+// populate fields. Keep this small — it's not paginated.
+func (db *DB) ListSettings(ctx context.Context) (map[string]string, error) {
+	rows, err := db.pool.Query(ctx, `SELECT key, value FROM panel_settings`)
+	if err != nil {
+		return nil, fmt.Errorf("list settings: %w", err)
+	}
+	defer rows.Close()
+	out := map[string]string{}
+	for rows.Next() {
+		var k, v string
+		if err := rows.Scan(&k, &v); err != nil {
+			return nil, fmt.Errorf("scan setting: %w", err)
+		}
+		out[k] = v
+	}
+	return out, rows.Err()
+}