/**
 * 全局 API 包装器
 * 提供 editor-core.js 所需的所有 API 方法
 */
(function() {
  'use strict';

  const BASE = window.location.origin; // e.g. http://localhost:3000

  function getHeaders() {
    const token = localStorage.getItem('ycat_token');
    return {
      'Content-Type': 'application/json',
      'Authorization': 'Bearer ' + (token || '')
    };
  }

  async function apiFetch(path, options = {}) {
    // 统一处理：path 可能是 /api/xxx 或 http://xxx
    let url;
    if (path.startsWith('http')) {
      url = path;
    } else {
      url = BASE + path; // /api/xxx -> http://localhost:3000/api/xxx
    }
    const res = await fetch(url, {
      ...options,
      headers: { ...getHeaders(), ...(options.headers || {}) }
    });
    const data = await res.json();
    if (!res.ok) throw new Error(data.error || 'API error ' + res.status);
    return data;
  }

  function get(path) { return apiFetch(path, { method: 'GET' }); }
  function post(path, body) { return apiFetch(path, { method: 'POST', body: JSON.stringify(body) }); }

  // === OAuth 授权 ===
  // platform: wechat|zhihu|xiaohongshu|bilibili|douyin
  function oauthUrl(platform) {
    return get('/api/publish/platforms/oauth-url?platform=' + encodeURIComponent(platform));
  }
  function oauthPoll(state) {
    return get('/api/publish/platforms/oauth-poll?state=' + encodeURIComponent(state));
  }
  function authorizeOAuth(platform, code) {
    return post('/api/publish/platforms/authorize', { platform: platform, code: code });
  }

  // === 文章 ===
  function getArticles(params) { return get('/articles?' + new URLSearchParams(params||{})); }
  function getArticle(id) { return get('/articles/' + id); }
  function createArticle(data) { return post('/articles', data); }
  function updateArticle(id, data) { return post('/articles/' + id, data); }
  function deleteArticle(id) { return post('/articles/' + id + '/delete', {}); }
  function getDraft(id) { return get('/articles/' + id + '/draft'); }
  function saveDraft(id, data) { return post('/articles/' + id + '/draft', data); }
  function exportMarkdown(id) { return get('/articles/' + id + '/export'); }
  function listCategories() { return get('/categories'); }
  function listTags() { return get('/tags'); }
  function getStats() { return get('/stats'); }

  // === 平台账号 ===
  function getPlatforms() { return get('/publish/platforms'); }
  function addPlatformAccount(platform, accountName) {
    return post('/publish/accounts/add', { platform: platform, accountName: accountName, authorize: 1 });
  }
  function removePlatformAccount(accountId) {
    return post('/publish/accounts/remove', { accountId: accountId });
  }

  // === 发布 ===
  function publish(articleId, platforms) {
    return post('/api/publish', { articleId: articleId, platforms: platforms });
  }
  function schedulePublish(articleId, platforms, publishAt) {
    return post('/api/scheduled/publish', { articleId: articleId, platforms: platforms, publishAt: publishAt });
  }

  // === AI 工具 ===
  function aiSuggestTitle(content) { return post('/api/ai/suggest-title', { content }); }
  function aiSuggestTags(content) { return post('/api/ai/suggest-tags', { content }); }
  function aiAnalyzeContent(content) { return post('/api/ai/analyze', { content }); }
  function aiRewrite(content, style) { return post('/api/ai/rewrite', { content, style }); }
  function aiPolish(content) { return post('/api/ai/polish', { content }); }
  function aiExpand(content) { return post('/api/ai/expand', { content }); }
  function aiSummarize(content) { return post('/api/ai/summarize', { content }); }
  function aiSuggestCategories(content) { return post('/api/ai/suggest-categories', { content }); }
  function seoScore(content) { return post('/api/ai/seo-score', { content }); }
  function healthCheck(content) { return post('/api/ai/health-check', { content }); }
  function batchSuggest(content, platforms) { return post('/api/ai/batch-suggest', { content, platforms }); }

  // === 合规 ===
  function complianceCheck(content) { return post('/api/compliance/check', { content }); }

  window.API = {
    get, post, publish, schedulePublish,
    oauthUrl, oauthPoll, authorizeOAuth,
    getArticles, getArticle, createArticle, updateArticle, deleteArticle,
    getDraft, saveDraft, exportMarkdown,
    listCategories, listTags, getStats,
    getPlatforms, addPlatformAccount, removePlatformAccount,
    aiSuggestTitle, aiSuggestTags, aiAnalyzeContent,
    aiRewrite, aiPolish, aiExpand, aiSummarize,
    aiSuggestCategories, seoScore, healthCheck, batchSuggest,
    complianceCheck
  };

  console.log('[API] initialized, endpoints:', Object.keys(window.API).length);
})();