/**
 * OmniCard AI (CRMmp) - 名片主个人中心与消息通知配置业务驱动层
 * 严格按照 AGENTS.md 规范与 uts 强类型约束
 */

import {
  OmniLocale,
  PORTAL_LOCALE_STORAGE_KEY,
  getCurrentLocale,
  setAppLocale,
  getOmniText,
} from '../../../common/locale.uts';

export { PORTAL_LOCALE_STORAGE_KEY };

export type UserProfileAccount = {
  name: string;
  company: string;
  department: string;
  avatar: string;
};

export type NotificationSettings = {
  radarPush: boolean;
  leadNotice: boolean;
};

export type ProfileState = {
  account: UserProfileAccount;
  notifications: NotificationSettings;
  locale: OmniLocale;
  saving: boolean;
  loading: boolean;
  errorMessage: string;
};

export type StorageApi = {
  getStorageSync: (key: string) => unknown;
  setStorageSync: (key: string, value: unknown) => void;
};

export const PROFILE_ACCOUNT_STORAGE_KEY = 'omni_owner_profile_account';
export const PROFILE_NOTIFICATIONS_STORAGE_KEY = 'omni_owner_profile_notifications';

function defaultStorage(): StorageApi {
  return {
    getStorageSync: (key: string): unknown => {
      try {
        if (typeof uni !== 'undefined' && uni.getStorageSync != null) {
          return uni.getStorageSync(key);
        }
      } catch (_e) {}
      return '';
    },
    setStorageSync: (key: string, value: unknown): void => {
      try {
        if (typeof uni !== 'undefined' && uni.setStorageSync != null) {
          uni.setStorageSync(key, value);
        }
      } catch (err: unknown) {
        throw err;
      }
    },
  };
}

export function getDefaultAccount(): UserProfileAccount {
  return {
    name: 'Alex Vance',
    company: 'Nexus Tech Global',
    department: 'Overseas Business Dept',
    avatar: 'https://images.unsplash.com/photo-1534528741775-53994a69daeb?auto=format&fit=crop&w=256&q=80',
  };
}

export function getDefaultNotifications(): NotificationSettings {
  return {
    radarPush: true,
    leadNotice: true,
  };
}

export function createProfileState(locale?: OmniLocale): ProfileState {
  const currentLocale = locale != null && locale !== '' ? locale : getCurrentLocale();
  return {
    account: getDefaultAccount(),
    notifications: getDefaultNotifications(),
    locale: currentLocale,
    saving: false,
    loading: false,
    errorMessage: '',
  };
}

function safeParseJson<T>(raw: unknown): T | null {
  if (raw == null || typeof raw !== 'string') {
    return null;
  }
  const trimmed = raw.trim();
  if (trimmed === '' || (!trimmed.startsWith('{') && !trimmed.startsWith('['))) {
    return null;
  }
  try {
    return JSON.parse(trimmed) as T;
  } catch (_e) {
    return null;
  }
}

/**
 * 从本地存储加载个人名片主资料与通知设置，具备完整防御性容错
 */
export function loadProfileSettings(storage?: StorageApi): ProfileState {
  const store = storage != null ? storage : defaultStorage();
  const state = createProfileState();

  try {
    const rawAccount = store.getStorageSync(PROFILE_ACCOUNT_STORAGE_KEY);
    const parsedAccount = safeParseJson<Record<string, unknown>>(rawAccount);

    if (parsedAccount != null && typeof parsedAccount === 'object') {
      const defaultAcc = getDefaultAccount();
      const safeName = typeof parsedAccount.name === 'string' && parsedAccount.name.trim() !== ''
        ? parsedAccount.name.trim()
        : defaultAcc.name;
      const safeCompany = typeof parsedAccount.company === 'string' && parsedAccount.company.trim() !== ''
        ? parsedAccount.company.trim()
        : defaultAcc.company;
      const safeDept = typeof parsedAccount.department === 'string' && parsedAccount.department.trim() !== ''
        ? parsedAccount.department.trim()
        : defaultAcc.department;
      const safeAvatar = typeof parsedAccount.avatar === 'string' && parsedAccount.avatar.trim() !== ''
        ? parsedAccount.avatar.trim()
        : defaultAcc.avatar;

      state.account = {
        name: safeName,
        company: safeCompany,
        department: safeDept,
        avatar: safeAvatar,
      };
    }
  } catch (_e) {
    // 降级使用默认账户
    state.account = getDefaultAccount();
  }

  try {
    const rawNotice = store.getStorageSync(PROFILE_NOTIFICATIONS_STORAGE_KEY);
    const parsedNotice = safeParseJson<Record<string, unknown>>(rawNotice);

    if (parsedNotice != null && typeof parsedNotice === 'object') {
      const defaultNotif = getDefaultNotifications();
      state.notifications = {
        radarPush: typeof parsedNotice.radarPush === 'boolean'
          ? parsedNotice.radarPush
          : defaultNotif.radarPush,
        leadNotice: typeof parsedNotice.leadNotice === 'boolean'
          ? parsedNotice.leadNotice
          : defaultNotif.leadNotice,
      };
    }
  } catch (_e) {
    // 降级使用默认通知
    state.notifications = getDefaultNotifications();
  }

  state.locale = getCurrentLocale();
  return state;
}

/**
 * 保存名片主资料与通知设置到本地存储
 */
export function saveProfileSettings(state: ProfileState, storage?: StorageApi): boolean {
  const store = storage != null ? storage : defaultStorage();
  try {
    store.setStorageSync(
      PROFILE_ACCOUNT_STORAGE_KEY,
      JSON.stringify(state.account)
    );
    store.setStorageSync(
      PROFILE_NOTIFICATIONS_STORAGE_KEY,
      JSON.stringify(state.notifications)
    );
    state.errorMessage = '';
    return true;
  } catch (err: unknown) {
    const msg = err instanceof Error ? err.message : 'Storage save failed';
    state.errorMessage = msg;
    return false;
  }
}

/**
 * 更新账户资料字段，具备非空与空格修剪防御保护
 */
export function updateAccount(
  state: ProfileState,
  patch: Partial<UserProfileAccount>
): void {
  if (patch == null) {
    return;
  }
  if (typeof patch.name === 'string' && patch.name.trim() !== '') {
    state.account.name = patch.name.trim();
  }
  if (typeof patch.company === 'string' && patch.company.trim() !== '') {
    state.account.company = patch.company.trim();
  }
  if (typeof patch.department === 'string' && patch.department.trim() !== '') {
    state.account.department = patch.department.trim();
  }
  if (typeof patch.avatar === 'string' && patch.avatar.trim() !== '') {
    state.account.avatar = patch.avatar.trim();
  }
}

/**
 * 切换雷达即时推送通知开关，并同步记忆持久化
 */
export function toggleRadarPush(
  state: ProfileState,
  value?: boolean,
  storage?: StorageApi
): boolean {
  const store = storage != null ? storage : defaultStorage();
  const nextVal = value !== undefined ? Boolean(value) : !state.notifications.radarPush;
  state.notifications.radarPush = nextVal;

  try {
    store.setStorageSync(
      PROFILE_NOTIFICATIONS_STORAGE_KEY,
      JSON.stringify(state.notifications)
    );
    state.errorMessage = '';
  } catch (err: unknown) {
    const msg = err instanceof Error ? err.message : 'Failed to persist radar push';
    state.errorMessage = msg;
  }

  return nextVal;
}

/**
 * 切换新线索提醒开关，并同步记忆持久化
 */
export function toggleLeadNotice(
  state: ProfileState,
  value?: boolean,
  storage?: StorageApi
): boolean {
  const store = storage != null ? storage : defaultStorage();
  const nextVal = value !== undefined ? Boolean(value) : !state.notifications.leadNotice;
  state.notifications.leadNotice = nextVal;

  try {
    store.setStorageSync(
      PROFILE_NOTIFICATIONS_STORAGE_KEY,
      JSON.stringify(state.notifications)
    );
    state.errorMessage = '';
  } catch (err: unknown) {
    const msg = err instanceof Error ? err.message : 'Failed to persist lead notice';
    state.errorMessage = msg;
  }

  return nextVal;
}

/**
 * 切换首选语言并记忆持久化
 */
export function setPreferredLocale(
  state: ProfileState,
  locale: string,
  storage?: StorageApi
): OmniLocale {
  const safeLocales: OmniLocale[] = [
    'zh-CN',
    'en-US',
    'ar-SA',
    'es-ES',
    'de-DE',
    'fr-FR',
    'ja-JP',
  ];
  let targetLocale: OmniLocale = 'zh-CN';
  if (locale != null) {
    const found = safeLocales.find((l: OmniLocale) => l === locale);
    if (found != null) {
      targetLocale = found;
    } else {
      const lower = locale.toLowerCase();
      if (lower.startsWith('en')) {
        targetLocale = 'en-US';
      }
    }
  }

  state.locale = targetLocale;
  setAppLocale(targetLocale);

  if (storage != null) {
    try {
      storage.setStorageSync(PORTAL_LOCALE_STORAGE_KEY, targetLocale);
    } catch (_e) {}
  }

  return targetLocale;
}

/**
 * 预览个人头像
 */
export function previewAccountAvatar(state: ProfileState): void {
  if (state.account.avatar !== '') {
    // #ifndef UNI-APP-X-TEST
    try {
      if (typeof uni !== 'undefined' && typeof uni.previewImage === 'function') {
        uni.previewImage({
          urls: [state.account.avatar],
          current: state.account.avatar,
        });
      }
    } catch (_e) {}
    // #endif
  }
}

/**
 * 移除个人头像
 */
export function removeAccountAvatar(state: ProfileState): void {
  state.account.avatar = '';
}

/**
 * 瑞士国际主义多语言文案解析器，无 emoji
 */
export function resolveProfileText(key: string): string {
  const locale = getCurrentLocale();
  if (key === 'save') {
    return getOmniText(locale, 'common.save');
  }
  if (key === 'saved') {
    return getOmniText(locale, 'common.success');
  }
  if (key === 'loading') {
    return getOmniText(locale, 'common.loading');
  }
  if (key === 'error') {
    return getOmniText(locale, 'common.error');
  }

  const isZh = locale === 'zh-CN';

  switch (key) {
    case 'title':
      return isZh ? '个人中心' : 'Profile';
    case 'subtitle':
      return isZh ? '管理名片主信息与系统通知' : 'Manage account and notifications';
    case 'accountSection':
      return isZh ? '基本资料' : 'Account';
    case 'nameLabel':
      return isZh ? '姓名' : 'Name';
    case 'companyLabel':
      return isZh ? '所属企业' : 'Company';
    case 'departmentLabel':
      return isZh ? '部门' : 'Department';
    case 'avatarLabel':
      return isZh ? '头像' : 'Avatar';
    case 'notificationsSection':
      return isZh ? '消息通知' : 'Notifications';
    case 'radarPushTitle':
      return isZh ? '雷达即时推送' : 'Radar Push';
    case 'radarPushDesc':
      return isZh ? '海外客商访问名片时立即通知' : 'Instant alert when visitors view card';
    case 'leadNoticeTitle':
      return isZh ? '新线索提醒' : 'Lead Notice';
    case 'leadNoticeDesc':
      return isZh ? '客商留资或互换名片时实时触达' : 'Real-time notice for new leads';
    case 'languageSection':
      return isZh ? '偏好设置' : 'Preferences';
    case 'languageLabel':
      return isZh ? '界面语言' : 'Display Language';
    default:
      return key;
  }
}