'use strict';

const jianSunDatabase = require('../config/jianSunDatabase');
const { PddOpenPlatformError } = require('./pddOpenPlatformClient');

function normalizeText(value, maxLength = 1000) {
  return String(value ?? '').trim().slice(0, maxLength);
}

const SHOP_AUTH_BASE_SQL = `
  FROM dbo.shop_pdd_auth auth
  CROSS APPLY (
    SELECT TOP 1 candidate.*
    FROM dbo.sys_PddBill_Service candidate
    WHERE REPLACE(REPLACE(LTRIM(RTRIM(candidate.name)), N'拼多多-', N''), N' ', N'')
       = REPLACE(REPLACE(LTRIM(RTRIM(auth.shop_name)), N'拼多多-', N''), N' ', N'')
      AND candidate.isStop = 0
      AND NULLIF(LTRIM(RTRIM(candidate.client_id)), N'') IS NOT NULL
      AND NULLIF(LTRIM(RTRIM(candidate.secrity)), N'') IS NOT NULL
    ORDER BY candidate.Id DESC
  ) service
  WHERE auth.shop_status = N'正常'
    AND ISNULL(auth.mark, N'') NOT LIKE N'%已关闭%'
    AND NULLIF(LTRIM(RTRIM(auth.token)), N'') IS NOT NULL
    AND auth.experied > DATEADD(MINUTE, 5, GETDATE())
  `;

function mapPublicShop(row = {}) {
  return {
    shopId: normalizeText(row.nick, 160),
    shopCode: normalizeText(row.mallId, 160),
    shopName: normalizeText(row.shopName, 255),
    accountName: normalizeText(row.nick, 160),
    platform: 'PDD',
    status: 'active',
    manager: normalizeText(row.shopManager, 120),
    director: normalizeText(row.director, 120),
    tokenExpiresAt: row.tokenExpiredTime || null,
    credentialSource: 'shop_pdd_auth',
  };
}

async function listPddPublishingShops(options = {}) {
  const query = options.query || jianSunDatabase.query;
  const rows = await query(`SELECT
      auth.shop_name AS shopName,
      auth.nick,
      auth.experied AS tokenExpiredTime,
      auth.shop_manager AS shopManager,
      auth.director,
      service.mallID AS mallId
    ${SHOP_AUTH_BASE_SQL}
    ORDER BY auth.shop_name`);
  return { rows: rows.map(mapPublicShop), total: rows.length, source: 'shop_pdd_auth' };
}

async function resolvePddPublishingShop(shop = {}, options = {}) {
  const query = options.query || jianSunDatabase.query;
  const shopId = normalizeText(shop.shopId || shop.shop_id || shop.nick, 160);
  const shopName = normalizeText(shop.shopName || shop.shop_name, 255);
  if (!shopId && !shopName) {
    throw new PddOpenPlatformError('请选择可上架的拼多多店铺', {
      code: 'PDD_PUBLISHING_SHOP_REQUIRED',
      status: 400,
    });
  }
  const rows = await query(`SELECT TOP 2
      auth.shop_name AS shopName,
      auth.nick,
      auth.token AS accessToken,
      auth.experied AS tokenExpiredTime,
      auth.shop_manager AS shopManager,
      auth.director,
      service.Id AS serviceId,
      service.mallID AS mallId,
      service.refreshToken,
      service.client_id AS clientId,
      service.secrity AS clientSecret
    ${SHOP_AUTH_BASE_SQL}
      AND (auth.nick = @shopId OR service.mallID = @shopId OR auth.shop_name = @shopName)
    ORDER BY CASE WHEN auth.nick = @shopId THEN 0 WHEN service.mallID = @shopId THEN 1 ELSE 2 END`, {
    shopId,
    shopName,
  });
  if (rows.length !== 1) {
    throw new PddOpenPlatformError(
      rows.length > 1 ? '所选店铺匹配到多条开放平台授权' : '所选店铺不可上架、已关闭或授权已过期',
      { code: rows.length > 1 ? 'PDD_PUBLISHING_SHOP_AMBIGUOUS' : 'PDD_PUBLISHING_SHOP_UNAVAILABLE', status: 409 }
    );
  }
  const row = rows[0];
  return {
    shop: mapPublicShop(row),
    credential: {
      recordId: normalizeText(row.serviceId, 160),
      name: normalizeText(row.shopName, 255),
      mallId: normalizeText(row.mallId, 160),
      accountName: normalizeText(row.nick, 160),
      accessToken: normalizeText(row.accessToken, 1000),
      refreshToken: normalizeText(row.refreshToken, 1000),
      tokenExpiredTime: row.tokenExpiredTime,
      clientId: normalizeText(row.clientId, 300),
      clientSecret: normalizeText(row.clientSecret, 500),
    },
  };
}

module.exports = {
  SHOP_AUTH_BASE_SQL,
  listPddPublishingShops,
  mapPublicShop,
  resolvePddPublishingShop,
};