// Panel Content Script —— 商品页右下角悬浮按钮 + 页内悬浮面板
//
// 面板 = iframe 加载插件内置 sidepanel.html（扩展页面在 iframe 里仍有 chrome.* 权限，
// 采集/生成/导出逻辑零改动）；按钮与面板容器渲染在独立 Shadow DOM 中，
// 不受商品页全局 CSS 影响，面板悬浮覆盖页面、不挤压原页面布局。
import { matchProfile } from '../src/profiles/index';

/** 面板内 App.tsx → 宿主页的收起消息 */
const PANEL_CLOSE_MSG = 'sc-panel-close';

const STYLES = `
  :host { all: initial; }

  .fab {
    position: fixed;
    right: 24px;
    bottom: 24px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font: 700 20px/1 -apple-system, 'PingFang SC', 'Microsoft YaHei', sans-serif;
    color: #fff;
    background: linear-gradient(135deg, #8b5cf6, #6d28d9);
    box-shadow: 0 4px 16px rgba(109, 40, 217, 0.45);
    z-index: 3;
    transition: transform 0.15s ease;
  }
  .fab:hover { transform: scale(1.08); }
  .fab.hidden { display: none; }

  .panel {
    position: fixed;
    top: 0;
    bottom: 0;
    right: 0;
    width: min(880px, 100vw);
    border-radius: 14px 0 0 14px;
    overflow: hidden;
    background: #fff;
    box-shadow: -8px 0 32px rgba(0, 0, 0, 0.25), 0 0 0 1px rgba(0, 0, 0, 0.06);
    transform: translateX(100%);
    transition: transform 0.25s ease;
    z-index: 2;
    pointer-events: none;
  }
  .panel.open { transform: translateX(0); pointer-events: auto; }

  .panel iframe {
    width: 100%;
    height: 100%;
    border: 0;
    display: block;
    background: #fff;
  }
`;

export default defineContentScript({
  matches: [
    // Ozon
    'https://*.ozon.ru/*',
    'https://*.ozon.kz/*',
    'https://*.ozon.by/*',
    // 1688
    'https://detail.1688.com/*',
    // 淘宝 / 天猫
    'https://item.taobao.com/*',
    'https://detail.tmall.com/*',
  ],
  async main(ctx) {
    const ui = await createShadowRootUi(ctx, {
      name: 'suite-studio-panel',
      position: 'overlay',
      anchor: 'body',
      alignment: 'bottom-right',
      zIndex: 2147483646,
      css: STYLES,
      isolateEvents: true,
      onMount(container) {
        const fab = document.createElement('button');
        fab.className = 'fab hidden';
        fab.title = '电商套图工作台';
        fab.textContent = '套';

        const panel = document.createElement('div');
        panel.className = 'panel';
        // iframe 懒加载：首次展开才设 src，避免每个商品页都加载整个面板应用
        const iframe = document.createElement('iframe');
        iframe.title = '电商套图工作台';
        panel.append(iframe);
        container.append(fab, panel);

        const open = () => {
          if (!iframe.src) iframe.src = chrome.runtime.getURL('/sidepanel.html');
          panel.classList.add('open');
          fab.classList.add('hidden');
          // 聚焦进面板，键盘操作（Esc 关闭 / 预览翻页）直接可用
          iframe.focus();
        };
        const close = () => {
          panel.classList.remove('open');
          if (isProductPage()) fab.classList.remove('hidden');
        };

        fab.addEventListener('click', open);

        // 面板内 App（✕ / Esc）→ 收起
        window.addEventListener('message', (e) => {
          if (e.source === iframe.contentWindow && (e.data as any)?.type === PANEL_CLOSE_MSG) close();
        });

        // 工具栏图标点击 → 开关面板
        chrome.runtime.onMessage.addListener((msg: any) => {
          if (msg?.action === 'toggle-suite-panel') {
            panel.classList.contains('open') ? close() : open();
          }
        });

        // 仅商品详情页显示按钮；站内软导航后重判（WXT 内置事件，自动拦截 pushState/replaceState/popState）
        const refresh = () => {
          if (isProductPage()) {
            if (!panel.classList.contains('open')) fab.classList.remove('hidden');
          } else {
            fab.classList.add('hidden');
            close();
          }
        };
        ctx.addEventListener(window, 'wxt:locationchange', refresh);
        refresh();

        return { open, close };
      },
    });
    ui.mount();
  },
});

/** 是否为四站点支持的商品详情页（与采集 profile 一致） */
function isProductPage(): boolean {
  return matchProfile(location.href) !== null;
}