'use client';

import { useState, useEffect, useRef, useCallback } from 'react';
import { getRandomMockData, STEP_MESSAGES } from '@/components/work-flow/constants';

// 当前选择的mock数据
let selectedMockData = getRandomMockData();

export function useWorkflowData() {
  const [taskObject, setTaskObject] = useState<any>(null);
  const [taskSketch, setTaskSketch] = useState<any[]>([]);
  const [taskVideos, setTaskVideos] = useState<any[]>([]);
  const [sketchCount, setSketchCount] = useState(0);
  const [isLoading, setIsLoading] = useState(true);
  const [currentStep, setCurrentStep] = useState('0');
  const [currentSketchIndex, setCurrentSketchIndex] = useState(0);
  const [isGeneratingSketch, setIsGeneratingSketch] = useState(false);
  const [isGeneratingVideo, setIsGeneratingVideo] = useState(false);
  const [currentLoadingText, setCurrentLoadingText] = useState('Loading task information...');

  // 模拟接口请求 获取任务详情
  const getTaskDetail = async (taskId: string) => {
    // 每次进入页面时重新随机选择数据
    selectedMockData = getRandomMockData();
    
    const data = {
      projectId: selectedMockData.detail.projectId,
      projectName: selectedMockData.detail.projectName,
      taskId: taskId,
      taskName: selectedMockData.detail.taskName,
      taskDescription: selectedMockData.detail.taskDescription,
      taskStatus: selectedMockData.detail.taskStatus,
      taskProgress: 0,
      mode: selectedMockData.detail.mode,
      resolution: selectedMockData.detail.resolution.toString(),
    };
    return data;
  };

  // 模拟接口请求 每次获取一个分镜草图 轮询获取
  const getTaskSketch = async (taskId: string) => {
    if (isGeneratingSketch || taskSketch.length > 0) return;
    
    setIsGeneratingSketch(true);
    setTaskSketch([]);
    
    const sketchData = selectedMockData.sketch;
    const totalSketches = sketchData.length;
    
    // 模拟分批获取分镜草图
    for (let i = 0; i < totalSketches; i++) {
      await new Promise(resolve => setTimeout(resolve, 10000));
      
      const newSketch = {
        id: `sketch-${i}`,
        url: sketchData[i].url,
        script: sketchData[i].script,
        bg_rgb: sketchData[i].bg_rgb,
        status: 'done'
      };
      
      setTaskSketch(prev => {
        if (prev.find(sketch => sketch.id === newSketch.id)) {
          return prev;
        }
        return [...prev, newSketch];
      });
      setCurrentSketchIndex(i);
      setSketchCount(i + 1);
    }
    
    // 等待最后一个动画完成再设置生成状态为false
    await new Promise(resolve => setTimeout(resolve, 1500));
    setIsGeneratingSketch(false);
  };

  // 模拟接口请求 每次获取一个角色 轮询获取
  const getTaskRole = async (taskId: string) => {
    await new Promise(resolve => setTimeout(resolve, 30000 * selectedMockData.roles.length)); // 延长到30秒
  };

  // 模拟接口请求 获取背景音
  const getTaskBackgroundAudio = async (taskId: string) => {
    await new Promise(resolve => setTimeout(resolve, 10000)); // 10s
  };

  // 模拟接口请求 获取最终成品
  const getTaskFinalProduct = async (taskId: string) => {
    await new Promise(resolve => setTimeout(resolve, 50000)); // 50s
  };

  // 模拟接口请求 每次获取一个分镜视频 轮询获取
  const getTaskVideo = async (taskId: string) => {
    setIsGeneratingVideo(true);
    setTaskVideos([]);

    const videoData = selectedMockData.video;
    const totalVideos = videoData.length;

    // 模拟分批获取分镜视频
    for (let i = 0; i < totalVideos; i++) {
      await new Promise(resolve => setTimeout(resolve, 60000)); // 60s
      
      const newVideo = {
        id: `video-${i}`,
        url: videoData[i].url,
        script: videoData[i].script,
        status: 'done'
      };
      
      setTaskVideos(prev => {
        if (prev.find(video => video.id === newVideo.id)) {
          return prev;
        }
        return [...prev, newVideo];
      });
      setCurrentSketchIndex(i);
    }
    
    // 等待最后一个动画完成再设置生成状态为false
    await new Promise(resolve => setTimeout(resolve, 1500));
    setIsGeneratingVideo(false);
  };

  // 更新加载文字
  useEffect(() => {
    if (isLoading) {
      setCurrentLoadingText(STEP_MESSAGES.loading);
      return;
    }

    const totalSketches = selectedMockData.sketch.length;

    if (currentStep === '1') {
      if (isGeneratingSketch) {
        setCurrentLoadingText(STEP_MESSAGES.sketch(sketchCount, totalSketches));
      } else {
        setCurrentLoadingText(STEP_MESSAGES.sketchComplete);
      }
    } else if (currentStep === '2') {
      setCurrentLoadingText(STEP_MESSAGES.character);
    } else if (currentStep === '3') {
      if (isGeneratingVideo) {
        setCurrentLoadingText(STEP_MESSAGES.video(taskVideos.length, totalSketches));
      } else {
        setCurrentLoadingText(STEP_MESSAGES.videoComplete);
      }
    } else if (currentStep === '4') {
      setCurrentLoadingText(STEP_MESSAGES.audio);
    } else if (currentStep === '5') {
      setCurrentLoadingText(STEP_MESSAGES.final);
    } else {
      setCurrentLoadingText(STEP_MESSAGES.complete);
    }
  }, [isLoading, currentStep, isGeneratingSketch, sketchCount, isGeneratingVideo, taskVideos.length, taskSketch.length]);

  // 初始化数据
  useEffect(() => {
    const taskId = localStorage.getItem("taskId") || "taskId-123";
    getTaskDetail(taskId).then(async (data) => {
      setTaskObject(data);
      setIsLoading(false);
      setCurrentStep('1');
      
      // 只在任务详情加载完成后获取分镜草图
      await getTaskSketch(taskId);
      
      // 修改 taskObject 下的 taskStatus 为 '2'
      setTaskObject((prev: any) => ({
        ...prev,
        taskStatus: '2'
      }));
      setCurrentStep('2');
      
      // 获取分镜草图后，开始绘制角色
      await getTaskRole(taskId);
      
      // 修改 taskObject 下的 taskStatus 为 '3'
      setTaskObject((prev: any) => ({
        ...prev,
        taskStatus: '3'
      }));
      setCurrentStep('3');
      
      // 获取绘制角色后，开始获取分镜视频
      await getTaskVideo(taskId);
      
      // 修改 taskObject 下的 taskStatus 为 '4'
      setTaskObject((prev: any) => ({
        ...prev,
        taskStatus: '4'
      }));
      setCurrentStep('4');
      
      // 获取分镜视频后，开始获取背景音
      await getTaskBackgroundAudio(taskId);
      await new Promise(resolve => setTimeout(resolve, 2000));
      
      // 修改 taskObject 下的 taskStatus 为 '5'
      setTaskObject((prev: any) => ({
        ...prev,
        taskStatus: '5'
      }));
      setCurrentStep('5');
      // 后期制作：抽卡中 对口型中 配音中 一致性处理中
      setCurrentLoadingText(STEP_MESSAGES.postProduction('Selecting optimal frames'));
      await new Promise(resolve => setTimeout(resolve, 10000));
      setCurrentLoadingText(STEP_MESSAGES.postProduction('Aligning lip sync'));
      await new Promise(resolve => setTimeout(resolve, 10000));
      setCurrentLoadingText(STEP_MESSAGES.postProduction('Adding background audio'));
      await new Promise(resolve => setTimeout(resolve, 10000));
      setCurrentLoadingText(STEP_MESSAGES.postProduction('Consistency processing'));
      await new Promise(resolve => setTimeout(resolve, 10000));
      // 获取背景音后，开始获取最终成品
      await getTaskFinalProduct(taskId);
      await new Promise(resolve => setTimeout(resolve, 2000));
      
      // 修改 taskObject 下的 taskStatus 为 '6'
      setTaskObject((prev: any) => ({
        ...prev,
        taskStatus: '6'
      }));
      setCurrentStep('6');
    });
  }, []);

  return {
    // 状态数据
    taskObject,
    taskSketch,
    taskVideos,
    sketchCount,
    isLoading,
    currentStep,
    currentSketchIndex,
    isGeneratingSketch,
    isGeneratingVideo,
    currentLoadingText,
    totalSketchCount: selectedMockData.sketch.length,
    roles: selectedMockData.roles,
    music: selectedMockData.music,
    final: selectedMockData.final,
    // 操作方法
    setCurrentSketchIndex,
  };
}