/**
 * 神之一手（one_divine_lot）客户端插件
 *
 * 注册：
 *  - conversation.view tabs：全部持仓 / 交易记录 / 关注列表（通用，按 tabConfig 显隐）+ 策略 tabs（按策略配置）
 *  - settings.section：神之一手设置菜单（通用设置 + 策略分组）
 *
 * 迭代 02：
 *  - O2 策略 tab 动态化：策略配置驱动注册
 *  - 设置 tab 化扩展：三个通用 tab（全部持仓/交易记录/关注列表）由 tabConfig 控制显隐
 *  - 刷新页面 = 插件重载 = 按最新配置重新注册（无事件机制）
 */

import { createElement } from 'react';
import { AllPositionsTab } from './views/AllPositionsTab.jsx';
import { StrategyTab } from './views/StrategyTab.jsx';
import { PlaceholderTab } from './views/PlaceholderTab.jsx';
import { TradeRecordsTab } from './views/TradeRecordsTab.jsx';
import { SettingsSection } from './views/SettingsSection.jsx';
import { QmtConnectionChip } from './views/QmtConnectionChip.jsx';
import { ConnectionProvider } from './views/connection.jsx';
import { MarketDataProvider } from './market/MarketDataProvider.jsx';

export const inject = ['slots', 'connection'];


async function fetchTabs() {
  try {
    const res = await fetch('/odl/api/tabs', {
      method: 'POST',
      headers: { 'Content-Type': 'application/json' },
      body: JSON.stringify({}),
    });
    const data = await res.json();
    if (data && data.ok && Array.isArray(data.value)) return data.value;
  } catch (e) { /* ignore */ }
  return null;
}

function strategyTabId(strategyId) {
  return 'odl-strategy-' + strategyId;
}

// R-011：内置 tab 渲染映射（refKey → render）；order 由 settings.tabs 统一管理
const GENERAL_RENDER = {
  allPositions: (withConnection) => withConnection((props) => createElement(AllPositionsTab, props)),
  tradeRecords: (withConnection) => withConnection((props) => createElement(TradeRecordsTab, props)),
  watchlist: (withConnection) => withConnection((props) => createElement(PlaceholderTab, { ...props, title: '关注列表' })),
};

export function apply(ctx) {
  const connection = ctx.get('connection');
  if (!connection) {
    ctx.logger?.warn?.('[one-divine-lot] connection 服务不可用');
  }

  // 神之一手 tab 激活时隐藏会话输入框（composer）
  // 借鉴 dsh-context 的纯 CSS 方案：:has(.odl-root) 命中 → 隐藏 [data-composer-seat]
  // 我们的 tab 根元素带 odl-root class；chat/其他 tab 无此 class → 输入框正常显示
  const ODL_HIDE_COMPOSER_CSS = `
[data-conversation-scroll]:has(.odl-root)>[data-composer-seat]{display:none}
`;
  if (typeof document !== 'undefined' && !document.querySelector('style[data-plugin-css="one-divine-lot/hide-composer"]')) {
    const tag = document.createElement('style');
    tag.dataset.pluginCss = 'one-divine-lot/hide-composer';
    tag.textContent = ODL_HIDE_COMPOSER_CSS;
    document.head.appendChild(tag);
  }

  const withConnection = (render) => (props) =>
    createElement(ConnectionProvider, { connection },
      createElement(MarketDataProvider, null, render(props)));

  ctx.slots.register({
    name: 'settings.section',
    id: 'one-divine-lot',
    order: 50,
    label: () => '神之一手',
  }, withConnection((props) => createElement(SettingsSection, props)));

  let tabDisposers = [];
  let disposed = false;

  const disposeAllTabs = () => {
    for (const d of tabDisposers) {
      try { d(); } catch (e) { /* ignore */ }
    }
    tabDisposers = [];
  };

  // R-011：统一注册 —— 读 settings.tabs 有序数组，按 order 排序、过滤 visible
  // builtin 走内置 render（GENERAL_RENDER），strategy 走 StrategyTab
  const registerAllTabs = async () => {
    const tabs = await fetchTabs();
    if (disposed) return;
    disposeAllTabs();
    if (!tabs) return;
    const sorted = tabs.slice().sort((a, b) => (a.order ?? 0) - (b.order ?? 0));
    let n = 0;
    for (const t of sorted) {
      if (t.visible === false) continue;
      const render = t.kind === 'builtin'
        ? GENERAL_RENDER[t.refKey]
        : (withConnection) => withConnection((props) => createElement(StrategyTab, { ...props, strategyId: t.refId, strategyName: t.name }));
      if (!render) continue;
      const dispose = ctx.slots.register({
        name: 'conversation.view',
        id: t.kind === 'builtin' ? t.id : strategyTabId(t.refId),
        order: t.order ?? 0,
        label: () => t.name ?? t.id,
      }, render(withConnection));
      tabDisposers.push(dispose);
      n++;
    }
    ctx.logger?.info?.('[one-divine-lot] 已注册 ' + n + ' 个会话 tab');
  };

  registerAllTabs();

  // R-004 Q9：会话头部快捷切换 chip（与 DSH 内置 PTC 标签 order=-10 并排，技术约束-009）
  ctx.slots.register({
    name: 'conversation.session.header.actions',
    id: 'odl-qmt-switch',
    order: -9,
  }, withConnection((props) => createElement(QmtConnectionChip, props)));

  ctx.effect(() => {
    return () => {
      disposed = true;
      disposeAllTabs();
    };
  }, 'one-divine-lot.client');
}