import type { Request, Response } from 'express';
import { sendSuccess, sendError } from '../http/response.js';
import { checkMessage } from '../services/compliance-check.service.js';
import { analyzeRiskContext } from '../services/ai-analysis.service.js';
import { createRiskEvent, createNotification } from '../services/risk-event.service.js';
import Parse from '../db/parse-client.js';

export async function testCompliance(req: Request, res: Response): Promise<void> {
  const { roomId, content, senderId, senderName } = req.body as {
    roomId?: string;
    content?: string;
    senderId?: string;
    senderName?: string;
  };

  if (!content) {
    sendError(res, 400, 'MISSING_CONTENT', '请提供消息内容');
    return;
  }

  const rid = roomId || 'test-room';
  const sid = senderId || 'test-user';
  const sname = senderName || '测试用户';

  // Step 1: 关键词初筛
  const keywordResult = checkMessage(content);

  if (!keywordResult.matched) {
    sendSuccess(res, {
      keywordMatched: false,
      keywords: [],
      keywordDuration: '<1ms',
      aiTriggered: false,
      aiResult: null,
      eventCreated: false,
    });
    return;
  }

  // Step 2: 查询当天该用户消息作为上下文
  const todayMessages = await getTodayUserMessages(rid, sid);
  // 把当前测试消息也加入上下文
  todayMessages.push({
    content,
    senderName: sname,
    timestamp: new Date().toISOString(),
  });

  // Step 3: DeepSeek AI 分析
  const aiResult = await analyzeRiskContext(todayMessages, keywordResult.keywords[0].word);

  // Step 4: 创建事件（仅在 AI 判定违规时）
  let eventCreated = false;
  if (aiResult?.isRisky) {
    const groupInfo = await getGroupInfo(rid);
    const matchedKeywords = keywordResult.keywords.map(k => k.word);
    await createRiskEvent({
      groupId: rid,
      groupName: groupInfo.groupName,
      communityName: groupInfo.communityName,
      type: 'keyword',
      severity: aiResult.severity,
      title: aiResult.title,
      description: aiResult.description,
      keywords: matchedKeywords,
    });

    await createNotification({
      userId: '*',
      type: 'risk',
      severity: aiResult.severity,
      title: `[测试] 风险预警：${groupInfo.groupName}`,
      description: aiResult.description,
      groupName: groupInfo.groupName,
      communityName: groupInfo.communityName,
      link: '/risk-control',
    });

    eventCreated = true;
  }

  sendSuccess(res, {
    keywordMatched: true,
    keywords: keywordResult.keywords,
    keywordDuration: '<1ms',
    aiTriggered: true,
    aiResult: aiResult || { isRisky: false, severity: 'low', title: 'AI 未返回结果', description: 'API Key 未配置或调用失败' },
    aiDuration: '1-3s',
    eventCreated,
  });
}

async function getTodayUserMessages(roomId: string, senderId: string): Promise<{ content: string; senderName: string; timestamp: string }[]> {
  const todayStart = new Date();
  todayStart.setHours(0, 0, 0, 0);
  const q = new Parse.Query('Message');
  q.equalTo('roomId', roomId);
  q.equalTo('senderId', senderId);
  q.containedIn('msgType', [0, 2]);
  q.greaterThanOrEqualTo('timestamp', todayStart);
  q.ascending('timestamp');
  q.limit(200);
  const rows = await q.find({ useMasterKey: true }) as any[];
  return rows.map((r: any) => ({
    content: (r.get('content') || '') as string,
    senderName: (r.get('senderName') || '') as string,
    timestamp: r.get('timestamp') ? new Date(r.get('timestamp') as Date).toISOString() : '',
  }));
}

async function getGroupInfo(roomId: string): Promise<{ groupName: string; communityName: string }> {
  try {
    const q = new Parse.Query('GroupChat');
    q.equalTo('roomId', roomId);
    q.limit(1);
    const obj = await q.first({ useMasterKey: true }) as any;
    return {
      groupName: obj?.get('roomName') || '未知群',
      communityName: obj?.get('communityName') || '未知小区',
    };
  } catch {
    return { groupName: '未知群', communityName: '未知小区' };
  }
}