/**
 * @license
 * Copyright 2025 Vybestack LLC
 * SPDX-License-Identifier: Apache-2.0
 */

import type { LoadedSettings } from '../config/settings.js';
import { SettingScope } from '../config/settings.js';
import { settingExistsInScope } from './settingsUtils.js';

/**
 * Shared scope labels for dialog components that need to display setting scopes
 */
export const SCOPE_LABELS = {
  [SettingScope.User]: 'User Settings',
  [SettingScope.Workspace]: 'Workspace Settings',
  [SettingScope.System]: 'System Settings',
} as const;

/**
 * Helper function to get scope items for radio button selects
 */
export function getScopeItems() {
  return [
    {
      key: SettingScope.User,
      label: SCOPE_LABELS[SettingScope.User],
      value: SettingScope.User,
    },
    {
      key: SettingScope.Workspace,
      label: SCOPE_LABELS[SettingScope.Workspace],
      value: SettingScope.Workspace,
    },
    {
      key: SettingScope.System,
      label: SCOPE_LABELS[SettingScope.System],
      value: SettingScope.System,
    },
  ];
}

/**
 * Scopes that have persistent storage and can be queried via forScope().
 * Session scope is ephemeral and not included.
 */
const PERSISTENT_SCOPES = [
  SettingScope.User,
  SettingScope.Workspace,
  SettingScope.System,
  SettingScope.SystemDefaults,
] as const;

/**
 * Generate scope message for a specific setting
 */
export function getScopeMessageForSetting(
  settingKey: string,
  selectedScope: SettingScope,
  settings: LoadedSettings,
): string {
  // Only check persistent scopes, not Session (which is ephemeral)
  const otherScopes = PERSISTENT_SCOPES.filter(
    (scope) => scope !== selectedScope,
  );

  const modifiedInOtherScopes = otherScopes.filter((scope) => {
    const scopeSettings = settings.forScope(scope).settings;
    return settingExistsInScope(settingKey, scopeSettings);
  });

  if (modifiedInOtherScopes.length === 0) {
    return '';
  }

  const modifiedScopesStr = modifiedInOtherScopes.join(', ');
  const currentScopeSettings = settings.forScope(selectedScope).settings;
  const existsInCurrentScope = settingExistsInScope(
    settingKey,
    currentScopeSettings,
  );

  return existsInCurrentScope
    ? `(Also modified in ${modifiedScopesStr})`
    : `(Modified in ${modifiedScopesStr})`;
}