/**
 * OmniCard AI (CRMmp) - 名片主极速编辑业务驱动层
 * 拉名片详情，仅提交已填字段，不做 Bento 搭建
 */

import { CardProfile } from '../../../common/types.uts';
import { fetchOwnerCardInfo, updateOwnerCard } from '../../../common/api.uts';
import { getCurrentLocale, getOmniText } from '../../../common/locale.uts';

export { fetchOwnerCardInfo, updateOwnerCard };

export type CardEditCopyKey =
  | 'heading'
  | 'name'
  | 'jobTitle'
  | 'company'
  | 'slogan'
  | 'phone'
  | 'email'
  | 'whatsapp'
  | 'linkedin'
  | 'timezone'
  | 'save'
  | 'loading'
  | 'success'
  | 'error'
  | 'empty'
  | 'missingId'
  | 'back'
  | 'avatarUpload'
  | 'avatarChange'
  | 'avatarPlaceholder'
  | 'lockedHint'
  | 'moduleOrderSection'
  | 'moveUp'
  | 'moveDown';

/** 极速编辑页可重排模块（无服务端排序字段，仅客户端顺序） */
export type CardEditModuleKey = 'basic' | 'social' | 'privacy';

export const DEFAULT_MODULE_ORDER: CardEditModuleKey[] = [
  'basic',
  'social',
  'privacy',
];

const MODULE_ORDER_STORAGE_PREFIX = 'omni_card_module_order_';

/** 品牌套件可锁定字段（接口 lockedFields / whitelist 原样或别名） */
export type BrandLockFieldKey =
  | 'company'
  | 'companyName'
  | 'logo'
  | 'logoUrl'
  | 'primaryColor'
  | 'avatarUrl'
  | 'name'
  | 'title'
  | 'slogan'
  | 'phone'
  | 'email'
  | 'whatsapp'
  | 'linkedin'
  | 'telegram'
  | 'twitter'
  | 'wechat';

export type BrandKitLockSource = {
  logoUrl?: string;
  primaryColor?: string;
  lockedFields?: string[] | null;
  whitelist?: string[] | null;
  editableFields?: string[] | null;
  fieldWhitelist?: string[] | null;
};

export type CardEditForm = {
  id?: string | number | null;
  name?: string;
  title?: string;
  company?: string;
  slogan?: string;
  avatarUrl?: string;
  phone?: string;
  email?: string;
  whatsapp?: string;
  linkedin?: string;
  telegram?: string;
  twitter?: string;
  wechat?: string;
  timezone?: string;
  lockedFields?: string[] | null;
};

export type CardUpdatePayload = {
  id: string | number;
  name?: string;
  title?: string;
  company?: string;
  slogan?: string;
  avatarUrl?: string;
  phone?: string;
  email?: string;
  whatsapp?: string;
  linkedin?: string;
  telegram?: string;
  twitter?: string;
  wechat?: string;
  timezone?: string;
};

export type LoadCardApi = {
  fetchOwnerCardInfo?: (id: string | number) => Promise<CardProfile>;
};

export type LoadCardResult = {
  card: CardProfile | null;
  empty: boolean;
  errorMessage: string;
};

export type SaveCardApi = {
  updateOwnerCard?: (
    payload: CardProfile & { id: string | number }
  ) => Promise<CardProfile>;
};

export type SaveCardResult = {
  ok: boolean;
  code?: number;
  card: CardProfile | null;
  errorMessage: string;
};

export type CardEditPageOptions = {
  id?: string;
};

export type CardEditState = {
  rawId: string;
  cardId: number | null;
  name: string;
  title: string;
  company: string;
  slogan: string;
  avatarUrl: string;
  phone: string;
  email: string;
  whatsapp: string;
  linkedin: string;
  timezone: string;
  moduleOrder: string[];
  lockedFields: string[];
  loading: boolean;
  saving: boolean;
  empty: boolean;
  missingId: boolean;
  errorMessage: string;
};

function isZhLocale(): boolean {
  return getCurrentLocale() === 'zh-CN';
}

/**
 * 页面文案：保存 / 社交走词典，字段标签走本地词典
 */
export function resolveCardEditText(key: CardEditCopyKey): string {
  const locale = getCurrentLocale();
  if (key === 'save') {
    return getOmniText(locale, 'common.save');
  }
  if (key === 'loading') {
    return getOmniText(locale, 'common.loading');
  }
  if (key === 'success') {
    return getOmniText(locale, 'common.success');
  }
  if (key === 'error') {
    return getOmniText(locale, 'common.error');
  }
  if (key === 'empty') {
    return getOmniText(locale, 'common.empty');
  }
  if (key === 'whatsapp') {
    return getOmniText(locale, 'portal.whatsapp');
  }
  if (key === 'linkedin') {
    return getOmniText(locale, 'portal.linkedin');
  }

  const zh = isZhLocale();
  if (key === 'heading') {
    return zh ? '极速编辑' : 'Quick edit';
  }
  if (key === 'name') {
    return zh ? '姓名' : 'Name';
  }
  if (key === 'jobTitle') {
    return zh ? '头衔' : 'Title';
  }
  if (key === 'company') {
    return zh ? '公司' : 'Company';
  }
  if (key === 'slogan') {
    return zh ? '口号' : 'Slogan';
  }
  if (key === 'phone') {
    return zh ? '电话' : 'Phone';
  }
  if (key === 'email') {
    return zh ? '邮箱' : 'Email';
  }
  if (key === 'timezone') {
    return zh ? '时区' : 'Timezone';
  }
  if (key === 'missingId') {
    return zh ? '缺少名片编号' : 'Card ID is missing';
  }
  if (key === 'back') {
    return zh ? '返回名片' : 'Back to card';
  }
  if (key === 'avatarUpload') {
    return zh ? '点击拍照/上传' : 'Upload photo';
  }
  if (key === 'avatarChange') {
    return zh ? '更换头像' : 'Change avatar';
  }
  if (key === 'avatarPlaceholder') {
    return zh ? '上传头像' : 'Upload avatar';
  }
  if (key === 'lockedHint') {
    return zh ? '品牌规范已锁定，不可修改' : 'Locked by brand kit';
  }
  if (key === 'moduleOrderSection') {
    return zh ? '模块顺序' : 'Module order';
  }
  if (key === 'moveUp') {
    return zh ? '上移' : 'Move up';
  }
  if (key === 'moveDown') {
    return zh ? '下移' : 'Move down';
  }
  return '';
}

function isKnownModuleKey(value: string): boolean {
  return (
    value === 'basic' || value === 'social' || value === 'privacy'
  );
}

/**
 * 归一化模块顺序：去重、仅保留已知键，缺项按默认补齐
 */
export function normalizeModuleOrder(raw: unknown): string[] {
  const seen: Record<string, boolean> = {};
  const out: string[] = [];
  if (Array.isArray(raw)) {
    for (let i = 0; i < raw.length; i++) {
      const item = raw[i];
      if (typeof item !== 'string') {
        continue;
      }
      const key = item.trim();
      if (!isKnownModuleKey(key) || seen[key] === true) {
        continue;
      }
      seen[key] = true;
      out.push(key);
    }
  }
  for (let i = 0; i < DEFAULT_MODULE_ORDER.length; i++) {
    const key = DEFAULT_MODULE_ORDER[i];
    if (seen[key] !== true) {
      out.push(key);
    }
  }
  return out;
}

/**
 * 上下移动模块。越界时原样返回。
 */
export function moveModuleInOrder(
  order: string[],
  index: number,
  delta: number
): string[] {
  const normalized = normalizeModuleOrder(order);
  const target = index + delta;
  if (index < 0 || index >= normalized.length) {
    return normalized;
  }
  if (target < 0 || target >= normalized.length) {
    return normalized;
  }
  const next: string[] = [];
  for (let i = 0; i < normalized.length; i++) {
    next.push(normalized[i]);
  }
  const tmp = next[index];
  next[index] = next[target];
  next[target] = tmp;
  return next;
}

export function moduleOrderStorageKey(cardId: string | number): string {
  return MODULE_ORDER_STORAGE_PREFIX + String(cardId);
}

export function readStoredModuleOrder(
  cardId: string | number | null | undefined
): string[] {
  if (cardId == null) {
    return normalizeModuleOrder(null);
  }
  try {
    if (typeof uni === 'undefined' || uni.getStorageSync == null) {
      return normalizeModuleOrder(null);
    }
    const cached = uni.getStorageSync(moduleOrderStorageKey(cardId));
    return normalizeModuleOrder(cached);
  } catch (_e) {
    return normalizeModuleOrder(null);
  }
}

export function writeStoredModuleOrder(
  cardId: string | number | null | undefined,
  order: string[]
): void {
  if (cardId == null) {
    return;
  }
  try {
    if (typeof uni === 'undefined' || uni.setStorageSync == null) {
      return;
    }
    uni.setStorageSync(
      moduleOrderStorageKey(cardId),
      normalizeModuleOrder(order)
    );
  } catch (_e) {}
}

/**
 * 解析为正整数。非正整数返回 null
 */
export function parseCardId(
  raw: string | number | null | undefined
): number | null {
  if (raw == null) {
    return null;
  }
  if (typeof raw === 'number') {
    if (raw <= 0) {
      return null;
    }
    if (Math.floor(raw) !== raw) {
      return null;
    }
    return raw;
  }
  const text = String(raw).trim();
  if (text === '') {
    return null;
  }
  if (!/^[1-9]\d*$/.test(text)) {
    return null;
  }
  return Number(text);
}

function pickFilled(value: string | null | undefined): string | null {
  if (value == null) {
    return null;
  }
  const text = String(value).trim();
  if (text === '') {
    return null;
  }
  return text;
}

/** 品牌管控字段：whitelist 模式下未列入则锁定 */
const BRAND_CONTROL_FIELDS: string[] = ['company', 'logoUrl', 'primaryColor'];

function normalizeLockToken(raw: string): string {
  return String(raw).trim();
}

function fieldAliasGroup(field: string): string[] {
  const key = normalizeLockToken(field);
  if (key === 'company' || key === 'companyName') {
    return ['company', 'companyName'];
  }
  if (key === 'logo' || key === 'logoUrl') {
    return ['logo', 'logoUrl'];
  }
  return [key];
}

function listIncludesField(
  list: string[] | null | undefined,
  field: string
): boolean {
  if (list == null || list.length === 0) {
    return false;
  }
  const aliases = fieldAliasGroup(field);
  for (let i = 0; i < list.length; i++) {
    const item = normalizeLockToken(list[i]);
    if (item === '') {
      continue;
    }
    for (let j = 0; j < aliases.length; j++) {
      if (item === aliases[j]) {
        return true;
      }
    }
  }
  return false;
}

function readStringArray(value: unknown): string[] | null {
  if (value == null) {
    return null;
  }
  if (!Array.isArray(value)) {
    return null;
  }
  const out: string[] = [];
  for (let i = 0; i < value.length; i++) {
    const item = value[i];
    if (typeof item === 'string') {
      const text = item.trim();
      if (text !== '') {
        out.push(text);
      }
    }
  }
  return out;
}

function readWhitelist(kit: BrandKitLockSource | null | undefined): string[] | null {
  if (kit == null) {
    return null;
  }
  const fromWhitelist = readStringArray(kit.whitelist);
  if (fromWhitelist != null) {
    return fromWhitelist;
  }
  const fromEditable = readStringArray(kit.editableFields);
  if (fromEditable != null) {
    return fromEditable;
  }
  return readStringArray(kit.fieldWhitelist);
}

function deriveLocksFromWhitelist(whitelist: string[]): string[] {
  const locked: string[] = [];
  for (let i = 0; i < BRAND_CONTROL_FIELDS.length; i++) {
    const field = BRAND_CONTROL_FIELDS[i];
    if (!listIncludesField(whitelist, field)) {
      locked.push(field);
    }
  }
  return locked;
}

/**
 * 从名片或品牌套件提取锁定字段。
 * 优先 lockedFields；否则用 whitelist/editableFields 反推品牌管控字段。
 * 无锁定数据返回 []，不因仅有 brandKit 资产而锁全部。
 */
export function extractLockedFields(
  source:
    | (CardProfile & {
        lockedFields?: string[] | null;
        brandKit?: BrandKitLockSource | null;
      })
    | BrandKitLockSource
    | null
    | undefined
): string[] {
  if (source == null) {
    return [];
  }

  const asRecord = source as {
    lockedFields?: string[] | null;
    brandKit?: BrandKitLockSource | null;
    whitelist?: string[] | null;
    editableFields?: string[] | null;
    fieldWhitelist?: string[] | null;
  };

  const topLocked = readStringArray(asRecord.lockedFields);
  if (topLocked != null) {
    return topLocked;
  }

  const kit =
    asRecord.brandKit != null
      ? asRecord.brandKit
      : (source as BrandKitLockSource);

  if (kit != null) {
    const kitLocked = readStringArray(kit.lockedFields);
    if (kitLocked != null) {
      return kitLocked;
    }
    const whitelist = readWhitelist(kit);
    if (whitelist != null && whitelist.length > 0) {
      return deriveLocksFromWhitelist(whitelist);
    }
  }

  return [];
}

/**
 * 判断表单字段是否被品牌套件锁定（含 company/companyName、logo/logoUrl 别名）
 */
export function isFieldLocked(
  lockedFields: string[] | null | undefined,
  field: string
): boolean {
  return listIncludesField(lockedFields, field);
}

function assignFilled(
  payload: CardUpdatePayload,
  key:
    | 'name'
    | 'title'
    | 'company'
    | 'slogan'
    | 'avatarUrl'
    | 'phone'
    | 'email'
    | 'whatsapp'
    | 'linkedin'
    | 'telegram'
    | 'twitter'
    | 'wechat'
    | 'timezone',
  value: string | null | undefined,
  lockedFields?: string[] | null
): void {
  if (isFieldLocked(lockedFields, key)) {
    return;
  }
  const filled = pickFilled(value);
  if (filled != null) {
    payload[key] = filled;
  }
}

/**
 * 只带已填字段与解析后的 id。缺 id 返回 null。
 * 锁定字段（含 companyName→company 别名）不进入 payload。
 */
export function buildUpdatePayload(
  form: CardEditForm,
  lockedFields?: string[] | null
): CardUpdatePayload | null {
  const id = parseCardId(form.id);
  if (id == null) {
    return null;
  }
  const locks =
    lockedFields != null
      ? lockedFields
      : form.lockedFields != null
        ? form.lockedFields
        : [];
  const payload: CardUpdatePayload = { id };
  assignFilled(payload, 'name', form.name, locks);
  assignFilled(payload, 'title', form.title, locks);
  assignFilled(payload, 'company', form.company, locks);
  assignFilled(payload, 'slogan', form.slogan, locks);
  assignFilled(payload, 'avatarUrl', form.avatarUrl, locks);
  assignFilled(payload, 'phone', form.phone, locks);
  assignFilled(payload, 'email', form.email, locks);
  assignFilled(payload, 'whatsapp', form.whatsapp, locks);
  assignFilled(payload, 'linkedin', form.linkedin, locks);
  assignFilled(payload, 'telegram', form.telegram, locks);
  assignFilled(payload, 'twitter', form.twitter, locks);
  assignFilled(payload, 'wechat', form.wechat, locks);
  assignFilled(payload, 'timezone', form.timezone, locks);
  return payload;
}

function readErrorMessage(err: unknown): string {
  if (err instanceof Error && err.message !== '') {
    return err.message;
  }
  return resolveCardEditText('error');
}

function asUpdatePayload(
  payload: CardUpdatePayload
): CardProfile & { id: string | number } {
  return payload as CardProfile & { id: string | number };
}

/**
 * 拉取名片详情。可注入 fetchOwnerCardInfo。缺 id 不请求
 */
export async function loadCard(
  id: string | number | null | undefined,
  api?: LoadCardApi
): Promise<LoadCardResult> {
  const cardId = parseCardId(id);
  if (cardId == null) {
    return {
      card: null,
      empty: true,
      errorMessage: '',
    };
  }

  const fetchInfo =
    api != null && api.fetchOwnerCardInfo != null
      ? api.fetchOwnerCardInfo
      : fetchOwnerCardInfo;

  try {
    const card = await fetchInfo(cardId);
    return {
      card,
      empty: false,
      errorMessage: '',
    };
  } catch (err) {
    return {
      card: null,
      empty: true,
      errorMessage: readErrorMessage(err),
    };
  }
}

/**
 * 保存名片。可注入 updateOwnerCard。缺 id 不请求。
 * lockedFields 可显式传入，否则用 form.lockedFields。
 */
export async function saveCard(
  form: CardEditForm,
  api?: SaveCardApi,
  lockedFields?: string[] | null
): Promise<SaveCardResult> {
  const payload = buildUpdatePayload(form, lockedFields);
  if (payload == null) {
    return {
      ok: false,
      code: undefined,
      card: null,
      errorMessage: '',
    };
  }

  const update =
    api != null && api.updateOwnerCard != null
      ? api.updateOwnerCard
      : updateOwnerCard;

  try {
    const card = await update(asUpdatePayload(payload));
    return {
      ok: true,
      // Cool-Admin：仅 code === 1000 视为更新成功（http 层已解包）
      code: 1000,
      card,
      errorMessage: '',
    };
  } catch (err) {
    return {
      ok: false,
      code: undefined,
      card: null,
      errorMessage: readErrorMessage(err),
    };
  }
}

export function createCardEditState(): CardEditState {
  return {
    rawId: '',
    cardId: null,
    name: '',
    title: '',
    company: '',
    slogan: '',
    avatarUrl: '',
    phone: '',
    email: '',
    whatsapp: '',
    linkedin: '',
    timezone: '',
    moduleOrder: normalizeModuleOrder(null),
    lockedFields: [],
    loading: false,
    saving: false,
    empty: false,
    missingId: false,
    errorMessage: '',
  };
}

export function applyCardEditOptions(
  state: CardEditState,
  options: CardEditPageOptions | null
): boolean {
  if (options == null || options.id == null) {
    state.rawId = '';
    state.cardId = null;
    state.missingId = true;
    state.empty = true;
    return false;
  }
  const parsed = parseCardId(options.id);
  state.rawId = String(options.id).trim();
  state.cardId = parsed;
  state.missingId = parsed == null;
  state.empty = parsed == null;
  if (parsed != null) {
    state.moduleOrder = readStoredModuleOrder(parsed);
  }
  return parsed != null;
}

function readOptionalText(value: string | null | undefined): string {
  if (value == null) {
    return '';
  }
  return String(value);
}

function applyCardToState(state: CardEditState, card: CardProfile): void {
  if (card.id != null) {
    const parsed = parseCardId(card.id);
    if (parsed != null) {
      state.cardId = parsed;
    }
  }
  state.name = card.name != null ? String(card.name) : '';
  state.title = readOptionalText(card.title);
  state.company = readOptionalText(card.company);
  state.slogan = readOptionalText(card.slogan);
  state.avatarUrl = readOptionalText(card.avatarUrl);
  state.phone = readOptionalText(card.phone);
  state.email = readOptionalText(card.email);
  state.whatsapp = readOptionalText(card.whatsapp);
  state.linkedin = readOptionalText(card.linkedin);
  state.timezone = readOptionalText(card.timezone);
  state.lockedFields = extractLockedFields(
    card as CardProfile & {
      lockedFields?: string[] | null;
      brandKit?: BrandKitLockSource | null;
    }
  );
}

export function applyLoadResult(
  state: CardEditState,
  result: LoadCardResult
): void {
  if (result.card != null) {
    applyCardToState(state, result.card);
    state.empty = false;
    state.missingId = false;
  } else {
    state.empty = true;
    state.lockedFields = [];
  }
  state.errorMessage = result.errorMessage;
}

export function formFromState(state: CardEditState): CardEditForm {
  return {
    id: state.cardId,
    name: state.name,
    title: state.title,
    company: state.company,
    slogan: state.slogan,
    avatarUrl: state.avatarUrl,
    phone: state.phone,
    email: state.email,
    whatsapp: state.whatsapp,
    linkedin: state.linkedin,
    timezone: state.timezone,
    lockedFields: state.lockedFields,
  };
}

export async function refreshCardEdit(
  state: CardEditState,
  api?: LoadCardApi
): Promise<LoadCardResult> {
  if (state.missingId || state.cardId == null) {
    const skipped: LoadCardResult = {
      card: null,
      empty: true,
      errorMessage: '',
    };
    applyLoadResult(state, skipped);
    state.missingId = true;
    return skipped;
  }
  if (state.loading) {
    return {
      card: null,
      empty: state.empty,
      errorMessage: state.errorMessage,
    };
  }
  state.loading = true;
  state.errorMessage = '';
  const result = await loadCard(state.cardId, api);
  applyLoadResult(state, result);
  state.loading = false;
  return result;
}

export async function submitCardEdit(
  state: CardEditState,
  api?: SaveCardApi
): Promise<boolean> {
  if (state.cardId == null || state.saving) {
    return false;
  }
  state.saving = true;
  state.errorMessage = '';
  const result = await saveCard(
    formFromState(state),
    api,
    state.lockedFields
  );
  // 仅接口 code === 1000 视为保存成功
  if (result.ok && result.code === 1000 && result.card != null) {
    applyCardToState(state, result.card);
    writeStoredModuleOrder(state.cardId, state.moduleOrder);
    state.saving = false;
    return true;
  }
  state.saving = false;
  state.errorMessage = result.errorMessage;
  return false;
}

export function goBackFromCardEdit(): void {
  uni.navigateBack({
    delta: 1,
    fail: () => {
      uni.switchTab({
        url: '/pages/owner/card/index',
      });
    },
  });
}