update

backend/settings.go

@@ -0,0 +1,47 @@
+package main
+
+import (
+	"database/sql"
+	"fmt"
+	"strings"
+)
+
+func (a *App) readSettings() (AppSettings, error) {
+	var raw string
+	err := a.db.QueryRow(`SELECT value FROM app_settings WHERE key = 'view_proof_in_view'`).Scan(&raw)
+	if err != nil {
+		if err == sql.ErrNoRows {
+			return AppSettings{ViewProofInView: false}, nil
+		}
+		return AppSettings{}, fmt.Errorf("read app setting view_proof_in_view: %w", err)
+	}
+	return AppSettings{ViewProofInView: settingBool(raw)}, nil
+}
+
+func (a *App) updateViewProofInView(enabled bool) error {
+	_, err := a.db.Exec(`
+INSERT INTO app_settings(key, value, updated_at)
+VALUES('view_proof_in_view', ?, CURRENT_TIMESTAMP)
+ON CONFLICT(key) DO UPDATE SET value = excluded.value, updated_at = CURRENT_TIMESTAMP
+`, settingString(enabled))
+	if err != nil {
+		return fmt.Errorf("update app setting view_proof_in_view: %w", err)
+	}
+	return nil
+}
+
+func settingBool(value string) bool {
+	switch strings.TrimSpace(strings.ToLower(value)) {
+	case "1", "true", "yes", "on":
+		return true
+	default:
+		return false
+	}
+}
+
+func settingString(value bool) string {
+	if value {
+		return "1"
+	}
+	return "0"
+}