import { Component, Input, Output, EventEmitter, OnInit, OnChanges, SimpleChanges, ChangeDetectorRef } from '@angular/core';
import { CommonModule } from '@angular/common';
import { Router } from '@angular/router';
import { DesignerCalendarComponent, Designer as CalendarDesigner } from '../../customer-service/consultation-order/components/designer-calendar/designer-calendar.component';
import { ProjectProgressModalComponent } from '../project-timeline/project-progress-modal';
import { ProjectSpaceDeliverableService, ProjectSpaceDeliverableSummary } from '../../../../modules/project/services/project-space-deliverable.service';
import { normalizeDateInput, addDays } from '../../../utils/date-utils';

// 员工详情面板数据接口
export interface EmployeeDetail {
  name: string;
  currentProjects: number; // 当前负责项目数
  projectNames: string[]; // 项目名称列表（用于显示）
  projectData: Array<{ id: string; name: string }>; // 项目数据（包含ID和名称，用于跳转）
  leaveRecords: LeaveRecord[]; // 未来7天请假记录
  redMarkExplanation: string; // 红色标记说明
  calendarData?: EmployeeCalendarData; // 负载日历数据
  // 问卷相关
  surveyCompleted?: boolean; // 是否完成问卷
  surveyData?: any; // 问卷答案数据
  profileId?: string; // Profile ID
}

// 请假记录接口
export interface LeaveRecord {
  id: string;
  employeeName: string;
  date: string; // YYYY-MM-DD 格式
  isLeave: boolean;
  leaveType?: 'sick' | 'personal' | 'annual' | 'other'; // 请假类型
  reason?: string; // 请假原因
}

// 员工日历数据接口
export interface EmployeeCalendarData {
  currentMonth: Date;
  days: EmployeeCalendarDay[];
}

// 日历日期数据
export interface EmployeeCalendarDay {
  date: Date;
  projectCount: number; // 当天项目数量
  projects: Array<{ id: string; name: string; deadline?: Date }>; // 项目列表
  isToday: boolean;
  isCurrentMonth: boolean;
}

@Component({
  selector: 'app-employee-detail-panel',
  standalone: true,
  imports: [CommonModule, DesignerCalendarComponent, ProjectProgressModalComponent],
  templateUrl: './employee-detail-panel.html',
  styleUrls: ['./employee-detail-panel.scss']
})
export class EmployeeDetailPanelComponent implements OnInit, OnChanges {
  // 暴露 Array 给模板使用
  Array = Array;
  
  // 输入属性
  @Input() visible: boolean = false;
  // 兼容旧模式：直接传入详情数据
  @Input() employeeDetail: EmployeeDetail | null = null;
  
  // 🆕 替换直接传入 employeeDetail，改为传入基础数据自行计算
  @Input() employeeName: string = '';
  @Input() projects: any[] = []; // 该员工的项目列表
  @Input() allLeaveRecords: LeaveRecord[] = []; // 所有请假记录（组件内过滤）
  @Input() embedMode: boolean = false; // 嵌入模式

  // 输出事件
  @Output() close = new EventEmitter<void>();
  @Output() projectClick = new EventEmitter<string>();
  // 兼容旧模式的输出事件
  @Output() calendarMonthChange = new EventEmitter<number>();
  @Output() calendarDayClick = new EventEmitter<EmployeeCalendarDay>();
  @Output() refreshSurvey = new EventEmitter<void>();
  
  // 组件内部状态
  internalEmployeeDetail: EmployeeDetail | null = null; // 内部生成的详情
  showFullSurvey: boolean = false;
  refreshingSurvey: boolean = false;

  // 获取负载状态
  get workloadStatus(): { label: string; class: string; color: string } {
    const count = this.currentEmployeeDetail?.currentProjects || 0;
    if (count >= 3) {
      return { label: '高负载', class: 'high', color: '#ef4444' }; // red
    } else if (count >= 1) {
      return { label: '正常', class: 'normal', color: '#3b82f6' }; // blue
    }
    return { label: '空闲', class: 'low', color: '#10b981' }; // green
  }

  // 获取能力标签
  get strengthTags(): string[] {
    if (!this.currentEmployeeDetail?.surveyData?.answers) return [];
    
    const summary = this.getCapabilitySummary(this.currentEmployeeDetail.surveyData.answers);
    const tags: string[] = [];
    
    // 解析风格
    if (summary.styles && summary.styles !== '未填写') {
      tags.push(...summary.styles.split('、').slice(0, 3));
    }
    // 解析空间
    if (summary.spaces && summary.spaces !== '未填写') {
      tags.push(...summary.spaces.split('、').slice(0, 2));
    }
    // 技术优势
    if (summary.advantages && summary.advantages !== '未填写') {
      tags.push(...summary.advantages.split('、').slice(0, 2));
    }
    
    return tags.slice(0, 6); // 最多显示6个标签
  }

  // 获取当前显示的 employeeDetail（优先使用 Input，否则使用内部生成的）
  get currentEmployeeDetail(): EmployeeDetail | null {
    return this.employeeDetail || this.internalEmployeeDetail;
  }
  
  // 日历项目列表弹窗状态
  showCalendarProjectList: boolean = false;
  selectedDate: Date | null = null;
  selectedDayProjects: Array<{ id: string; name: string; deadline?: Date }> = [];

  // 设计师详细日历
  showDesignerCalendar: boolean = false;
  calendarDesigners: CalendarDesigner[] = [];
  calendarViewMode: 'week' | 'month' | 'quarter' = 'month';

  // 项目进度详情弹窗
  showProgressModal: boolean = false;
  selectedProjectForProgress: string = '';
  progressSummary: ProjectSpaceDeliverableSummary | null = null;
  loadingProgress: boolean = false;
  
  constructor(
    private router: Router,
    private cdr: ChangeDetectorRef,
    private projectSpaceDeliverableService: ProjectSpaceDeliverableService
  ) {}
  
  ngOnInit(): void {
    console.log('📋 EmployeeDetailPanelComponent 初始化');
  }

  ngOnChanges(changes: SimpleChanges): void {
    // 优先处理直接传入的 employeeDetail
    if (changes['employeeDetail']) {
      // 如果外部传入了数据，不需要做额外操作，直接使用
      return;
    }

    // 当 visible 变为 true，或员工姓名/项目数据改变时，重新生成详情（仅在未传入 employeeDetail 时）
    if (!this.employeeDetail && (
        (changes['visible']?.currentValue === true) || 
        (this.visible && (changes['employeeName'] || changes['projects']))
       )) {
      if (this.employeeName) {
        this.generateEmployeeDetail();
      }
    }
  }
  
  /**
   * 生成员工详情数据
   */
  async generateEmployeeDetail(): Promise<void> {
    if (!this.employeeName) return;

    const employeeName = this.employeeName;
    
    // 过滤出当前活跃的项目（非已完成/已交付）用于显示"当前项目数"
    const activeProjects = this.projects.filter(p => p.status !== '已完成' && p.status !== '已交付');
    const currentProjects = activeProjects.length;
    
    // 保存完整的项目数据（最多显示3个活跃项目）
    const projectData = activeProjects.slice(0, 3).map(p => ({
      id: p.id,
      name: p.name
    }));
    
    const projectNames = projectData.map(p => p.name); // 项目名称列表
    
    // 获取该员工的请假记录（未来7天）
    const today = new Date();
    const next7Days = Array.from({ length: 7 }, (_, i) => {
      const date = new Date(today);
      date.setDate(today.getDate() + i);
      return date.toISOString().split('T')[0]; // YYYY-MM-DD 格式
    });
    
    const employeeLeaveRecords = this.allLeaveRecords.filter(record => 
      record.employeeName === employeeName && next7Days.includes(record.date)
    );
    
    // 生成红色标记说明
    const redMarkExplanation = this.generateRedMarkExplanation(employeeName, employeeLeaveRecords, currentProjects);
    
    // 生成日历数据 (传入所有项目以显示历史负载)
    const calendarData = this.generateEmployeeCalendar(employeeName, this.projects);
    
    // 构建基础对象
    this.internalEmployeeDetail = {
      name: employeeName,
      currentProjects,
      projectNames,
      projectData,
      leaveRecords: employeeLeaveRecords,
      redMarkExplanation,
      calendarData
    };

    // 加载问卷数据
    await this.loadSurveyData(employeeName);
    
    // 触发变更检测
    this.cdr.markForCheck();
  }

  /**
   * 加载问卷数据
   */
  async loadSurveyData(employeeName: string): Promise<void> {
    if (!this.internalEmployeeDetail) return;

    try {
      const Parse = await import('fmode-ng/parse').then(m => m.FmodeParse.with('nova'));
      
      // 通过员工名字查找Profile（同时查询 realname 和 name 字段）
      const realnameQuery = new Parse.Query('Profile');
      realnameQuery.equalTo('realname', employeeName);
      
      const nameQuery = new Parse.Query('Profile');
      nameQuery.equalTo('name', employeeName);
      
      // 使用 or 查询
      const profileQuery = Parse.Query.or(realnameQuery, nameQuery);
      profileQuery.limit(1);
      
      const profileResults = await profileQuery.find();
      
      if (profileResults.length > 0) {
        const profile = profileResults[0];
        this.internalEmployeeDetail.profileId = profile.id;
        this.internalEmployeeDetail.surveyCompleted = profile.get('surveyCompleted') || false;
        
        // 如果已完成问卷，加载问卷答案
        if (this.internalEmployeeDetail.surveyCompleted) {
          const surveyQuery = new Parse.Query('SurveyLog');
          surveyQuery.equalTo('profile', profile.toPointer());
          surveyQuery.equalTo('type', 'survey-profile');
          surveyQuery.descending('createdAt');
          surveyQuery.limit(1);
          
          const surveyResults = await surveyQuery.find();
          
          if (surveyResults.length > 0) {
            const survey = surveyResults[0];
            this.internalEmployeeDetail.surveyData = {
              answers: survey.get('answers') || [],
              createdAt: survey.get('createdAt'),
              updatedAt: survey.get('updatedAt')
            };
          }
        }
      }
      this.cdr.markForCheck();
    } catch (error) {
      console.error(`❌ 加载员工 ${employeeName} 问卷数据失败:`, error);
    }
  }

  /**
   * 生成员工日历数据（支持指定月份）
   */
  private generateEmployeeCalendar(employeeName: string, employeeProjects: any[], targetMonth?: Date): EmployeeCalendarData {
    const currentMonth = targetMonth || new Date();
    const year = currentMonth.getFullYear();
    const month = currentMonth.getMonth();
    
    // 获取当月天数
    const daysInMonth = new Date(year, month + 1, 0).getDate();
    const days: EmployeeCalendarDay[] = [];
    const today = new Date();
    today.setHours(0, 0, 0, 0);
    
    // 生成当月每一天的数据
    for (let day = 1; day <= daysInMonth; day++) {
      const date = new Date(year, month, day);
      const dateStr = date.toISOString().split('T')[0];
      
      // 找出该日期相关的项目（项目进行中且在当天范围内）
      const dayProjects = employeeProjects.filter(p => {
        // 移除对已完成项目的过滤，以便在日历中显示历史负载
        // if (p.status === '已完成' || p.status === '已交付') {
        //   return false;
        // }

        const projectData = p.data || {};

        // 2. 获取真实的项目开始时间 (逻辑与 DesignerWorkloadService 保持一致)
        const realStartDate = normalizeDateInput(
          projectData.phaseDeadlines?.modeling?.startDate ||
            projectData.requirementsConfirmedAt ||
            p.createdAt,
          new Date()
        );
        
        // 3. 获取真实的交付日期 (逻辑与 DesignerWorkloadService 保持一致)
        let proposedEndDate = p.deadline || projectData.phaseDeadlines?.postProcessing?.deadline;
        let realEndDate: Date;
        
        if (proposedEndDate) {
          const proposed = normalizeDateInput(proposedEndDate, realStartDate);
          // fix: 只要有明确的deadline，就使用它
          realEndDate = proposed;
        } else {
          realEndDate = addDays(realStartDate, 30);
        }
        
        // 归一化为当天0点，便于比较
        const rangeStart = new Date(realStartDate);
        rangeStart.setHours(0, 0, 0, 0);
        
        const rangeEnd = new Date(realEndDate);
        rangeEnd.setHours(0, 0, 0, 0);
        
        const inRange = date >= rangeStart && date <= rangeEnd;
        
        return inRange;
      }).map(p => {
        const getDate = (dateValue: any) => {
          if (!dateValue) return undefined;
          if (dateValue.toDate && typeof dateValue.toDate === 'function') {
            return dateValue.toDate();
          }
          if (dateValue instanceof Date) {
            return dateValue;
          }
          return new Date(dateValue);
        };
        
        return {
          id: p.id,
          name: p.name,
          deadline: getDate(p.deadline)
        };
      });
      
      days.push({
        date,
        projectCount: dayProjects.length,
        projects: dayProjects,
        isToday: date.getTime() === today.getTime(),
        isCurrentMonth: true
      });
    }
    
    // 补齐前后的日期（保证从周日开始）
    const firstDay = new Date(year, month, 1);
    const firstDayOfWeek = firstDay.getDay(); // 0=周日
    
    // 前置补齐（上个月的日期）
    for (let i = firstDayOfWeek - 1; i >= 0; i--) {
      const date = new Date(year, month, -i);
      days.unshift({
        date,
        projectCount: 0,
        projects: [],
        isToday: false,
        isCurrentMonth: false
      });
    }
    
    // 后置补齐（下个月的日期，保证总数是7的倍数）
    const remainder = days.length % 7;
    if (remainder !== 0) {
      const needed = 7 - remainder;
      for (let i = 1; i <= needed; i++) {
        const date = new Date(year, month + 1, i);
        days.push({
          date,
          projectCount: 0,
          projects: [],
          isToday: false,
          isCurrentMonth: false
        });
      }
    }
    
    return {
      currentMonth: new Date(year, month, 1),
      days
    };
  }

  // 生成红色标记说明
  private generateRedMarkExplanation(employeeName: string, leaveRecords: LeaveRecord[], projectCount: number): string {
    const explanations: string[] = [];
    
    // 检查请假情况
    const leaveDays = leaveRecords.filter(record => record.isLeave);
    if (leaveDays.length > 0) {
      leaveDays.forEach(leave => {
        const date = new Date(leave.date);
        const dateStr = `${date.getMonth() + 1}月${date.getDate()}日`;
        explanations.push(`${dateStr}（${leave.reason || '请假'}）`);
      });
    }
    
    // 检查项目繁忙情况
    if (projectCount >= 3) {
      const today = new Date();
      const dateStr = `${today.getMonth() + 1}月${today.getDate()}日`;
      explanations.push(`${dateStr}（${projectCount}个项目繁忙）`);
    }
    
    if (explanations.length === 0) {
      return '当前无红色标记时段';
    }
    
    return `甘特图中红色时段说明：${explanations.map((exp, index) => `${index + 1}${exp}`).join('；')}`;
  }
  
  /**
   * 关闭面板
   */
  onClose(): void {
    this.close.emit();
    this.showFullSurvey = false;
    this.closeCalendarProjectList();
  }
  
  /**
   * 切换月份
   */
  onChangeMonth(direction: number): void {
    // 如果是外部数据模式，发出事件让父组件处理
    if (this.employeeDetail) {
      this.calendarMonthChange.emit(direction);
      return;
    }
    
    // 内部模式处理
    if (!this.internalEmployeeDetail?.calendarData) {
      return;
    }
    
    const currentMonth = this.internalEmployeeDetail.calendarData.currentMonth;
    const newMonth = new Date(currentMonth);
    newMonth.setMonth(newMonth.getMonth() + direction);
    
    // 重新生成日历数据
    const newCalendarData = this.generateEmployeeCalendar(
      this.employeeName, 
      this.projects, 
      newMonth
    );
    
    // 更新员工详情中的日历数据
    this.internalEmployeeDetail = {
      ...this.internalEmployeeDetail,
      calendarData: newCalendarData
    };
  }
  
  /**
   * 日历日期点击
   */
  onCalendarDayClick(day: EmployeeCalendarDay): void {
    // 发出事件
    this.calendarDayClick.emit(day);

    // 内部处理
    if (!day.isCurrentMonth || day.projectCount === 0) {
      return;
    }
    
    this.selectedDate = day.date;
    this.selectedDayProjects = day.projects;
    this.showCalendarProjectList = true;
  }
  
  /**
   * 关闭项目列表弹窗
   */
  closeCalendarProjectList(): void {
    this.showCalendarProjectList = false;
    this.selectedDate = null;
    this.selectedDayProjects = [];
  }
  
  /**
   * 项目点击
   */
  onProjectClick(projectId: string): void {
    this.projectClick.emit(projectId);
    this.closeCalendarProjectList();
  }

  /**
   * 打开“设计师详细日历”弹窗（复用订单分配页的日历）
   * 将当前员工信息适配为 DesignerCalendar 组件的数据结构
   */
  openDesignerCalendar(): void {
    const detail = this.currentEmployeeDetail;
    if (!detail) return;

    const name = detail.name || '设计师';
    const currentProjects = detail.currentProjects || 0;

    // 将已有的 employeeDetail.calendarData 映射为日历事件（粗粒度：有项目视为当日有工作）
    const upcomingEvents: CalendarDesigner['upcomingEvents'] = [];
    const days = detail.calendarData?.days || [];
    for (const day of days) {
      if (day.projectCount > 0) {
        upcomingEvents.push({
          id: `${day.date.getTime()}`,
          date: day.date,
          title: `${day.projectCount}个项目`,
          type: 'project',
          duration: 6
        });
      }
    }

    // 适配为日历组件的设计师数据（单人视图）
    this.calendarDesigners = [{
      id: detail.profileId || name,
      name,
      groupId: '',
      groupName: '',
      isLeader: false,
      status: currentProjects >= 3 ? 'busy' : 'available',
      currentProjects,
      upcomingEvents,
      workload: Math.min(100, currentProjects * 30)
    }];

    this.showDesignerCalendar = true;
  }

  closeDesignerCalendar(): void {
    this.showDesignerCalendar = false;
    this.calendarDesigners = [];
  }
  
  /**
   * 刷新问卷
   */
  async onRefreshSurvey(): Promise<void> {
    // 如果是外部数据模式，发出事件让父组件处理
    if (this.employeeDetail) {
      this.refreshSurvey.emit();
      return;
    }

    if (this.refreshingSurvey || !this.internalEmployeeDetail) {
      return;
    }

    try {
      this.refreshingSurvey = true;
      console.log('🔄 刷新问卷状态...');
      await this.loadSurveyData(this.employeeName);
      console.log('✅ 问卷状态刷新成功');
    } catch (error) {
      console.error('❌ 刷新问卷状态失败:', error);
    } finally {
      this.refreshingSurvey = false;
    }
  }
  
  /**
   * 切换问卷显示模式
   */
  toggleSurveyDisplay(): void {
    this.showFullSurvey = !this.showFullSurvey;
  }
  
  /**
   * 获取能力画像摘要
   */
  getCapabilitySummary(answers: any[]): any {
    const findAnswer = (questionId: string) => {
      const item = answers.find((a: any) => a.questionId === questionId);
      return item?.answer;
    };

    const formatArray = (value: any): string => {
      if (Array.isArray(value)) {
        return value.join('、');
      }
      return value || '未填写';
    };

    return {
      styles: formatArray(findAnswer('q1_expertise_styles')),
      spaces: formatArray(findAnswer('q2_expertise_spaces')),
      advantages: formatArray(findAnswer('q3_technical_advantages')),
      difficulty: findAnswer('q5_project_difficulty') || '未填写',
      capacity: findAnswer('q7_weekly_capacity') || '未填写',
      urgent: findAnswer('q8_urgent_willingness') || '未填写',
      urgentLimit: findAnswer('q8_urgent_limit') || '',
      feedback: findAnswer('q9_progress_feedback') || '未填写',
      communication: formatArray(findAnswer('q12_communication_methods'))
    };
  }
  
  /**
   * 获取请假类型显示文本
   */
  getLeaveTypeText(leaveType?: string): string {
    const typeMap: Record<string, string> = {
      'sick': '病假',
      'personal': '事假',
      'annual': '年假',
      'other': '其他'
    };
    return typeMap[leaveType || ''] || '未知';
  }
  
  /**
   * 查看项目进度
   */
  async onViewProgress(projectId: string, event?: Event): Promise<void> {
    if (event) {
      event.stopPropagation();
    }

    this.selectedProjectForProgress = projectId;
    this.loadingProgress = true;
    this.showProgressModal = true;

    try {
      console.log('📊 加载项目进度数据:', projectId);
      this.progressSummary = await this.projectSpaceDeliverableService.getProjectSpaceDeliverableSummary(projectId);
      console.log('✅ 项目进度数据加载成功:', this.progressSummary);
    } catch (error) {
      console.error('❌ 加载项目进度数据失败:', error);
      this.progressSummary = null;
    } finally {
      this.loadingProgress = false;
      this.cdr.markForCheck();
    }
  }

  /**
   * 关闭进度弹窗
   */
  closeProgressModal(): void {
    this.showProgressModal = false;
    this.selectedProjectForProgress = '';
    this.progressSummary = null;
  }

  /**
   * 阻止事件冒泡
   */
  stopPropagation(event: Event): void {
    event.stopPropagation();
  }
}