// 修复 OnDestroy 导入和使用
import { Component, OnInit, OnDestroy, signal, computed } from '@angular/core';
import { CommonModule } from '@angular/common';
import { FormsModule } from '@angular/forms';
import { RouterModule, Router, ActivatedRoute } from '@angular/router';
import { ProjectService } from '../../../services/project.service';
import { Project, Task, CustomerFeedback } from '../../../models/project.model';

@Component({
  selector: 'app-dashboard',
  standalone: true,
  imports: [CommonModule, FormsModule, RouterModule],
  templateUrl: './dashboard.html',
  styleUrls: ['./dashboard.scss', '../customer-service-styles.scss'],
  providers: [ProjectService]
}) 
export class Dashboard implements OnInit, OnDestroy {
  // 数据看板统计
  stats = {
    newConsultations: signal(12),
    pendingAssignments: signal(5),
    exceptionProjects: signal(2),
    todayRevenue: signal(28500)
  };

  // 紧急待办列表
  urgentTasks = signal<Task[]>([]);

  // 任务处理状态
  taskProcessingState = signal<{[key: string]: {inProgress: boolean, progress: number}}>({});
  
  // 项目动态流
  projectUpdates = signal<(Project | CustomerFeedback)[]>([]);
  
  // 搜索关键词
  searchTerm = signal('');
  
  // 筛选后的项目更新
  filteredUpdates = computed(() => {
    if (!this.searchTerm()) return this.projectUpdates();
    
    return this.projectUpdates().filter(item => {
      if ('name' in item) {
        // 项目
        return item.name.toLowerCase().includes(this.searchTerm().toLowerCase()) ||
               item.customerName.toLowerCase().includes(this.searchTerm().toLowerCase()) ||
               item.status.toLowerCase().includes(this.searchTerm().toLowerCase());
      } else {
        // 反馈
        return 'content' in item && item.content.toLowerCase().includes(this.searchTerm().toLowerCase()) ||
               'status' in item && item.status.toLowerCase().includes(this.searchTerm().toLowerCase());
      }
    });
  });

  currentDate = new Date();
  
  // 回到顶部按钮可见性信号
  showBackToTopSignal = signal(false);

  // 任务表单可见性
  isTaskFormVisible = signal(false);
  
  // 新任务数据
  newTask: Task = {
    id: '',
    projectId: '',
    projectName: '',
    title: '',
    stage: '需求沟通',
    deadline: new Date(),
    isOverdue: false,
    isCompleted: false,
    priority: 'high',
    assignee: '当前用户',
    description: ''
  };
  
  // 用于日期时间输入的属性
  deadlineInput = '';
  
  // 预设快捷时长选项
  timePresets = [
    { label: '1小时内', hours: 1 },
    { label: '3小时内', hours: 3 },
    { label: '6小时内', hours: 6 },
    { label: '12小时内', hours: 12 },
    { label: '24小时内', hours: 24 }
  ];
  
  // 选中的预设时长
  selectedPreset = '';
  
  // 自定义时间弹窗可见性
  isCustomTimeVisible = false;
  
  // 自定义选择的日期和时间
  customDate = new Date();
  customTime = '';
  
  // 错误提示信息
  deadlineError = '';
  
  // 提交按钮是否禁用
  isSubmitDisabled = false;
  
  // 下拉框可见性
  deadlineDropdownVisible = false;
  
  // 日期范围限制
  get todayDate(): string {
    return new Date().toISOString().split('T')[0];
  }
  
  get sevenDaysLaterDate(): string {
    const date = new Date();
    date.setDate(date.getDate() + 7);
    return date.toISOString().split('T')[0];
  }

  constructor(
    private projectService: ProjectService,
    private router: Router,
    private activatedRoute: ActivatedRoute
  ) {}

  ngOnInit(): void {
    this.loadUrgentTasks();
    this.loadProjectUpdates();
    
    // 添加滚动事件监听
    window.addEventListener('scroll', this.onScroll.bind(this));
  }

  // 添加滚动事件处理方法
  private onScroll(): void {
    this.showBackToTopSignal.set(window.scrollY > 300);
  }
  
  // 添加显示回到顶部按钮的计算属性
  showBackToTop = computed(() => this.showBackToTopSignal());

  // 清理事件监听器
  ngOnDestroy(): void {
    window.removeEventListener('scroll', this.onScroll.bind(this));
  }

  // 添加scrollToTop方法
  scrollToTop(): void {
    window.scrollTo({
      top: 0,
      behavior: 'smooth'
    });
  }
  
  // 修改loadUrgentTasks方法，添加status属性
  loadUrgentTasks(): void {
    // 从服务获取任务数据，筛选出紧急任务
    this.projectService.getTasks().subscribe(tasks => {
      const filteredTasks = tasks.map(task => ({...task, status: task.isOverdue ? '已逾期' : task.isCompleted ? '已完成' : '进行中'}))
        .filter(task => task.isOverdue || task.deadline.toDateString() === new Date().toDateString());
      
      this.urgentTasks.set(filteredTasks.sort((a, b) => {
        // 按紧急程度排序
        if (a.isOverdue && !b.isOverdue) return -1;
        if (!a.isOverdue && b.isOverdue) return 1;
        return a.deadline.getTime() - b.deadline.getTime();
      }));
    });
  }

  loadProjectUpdates(): void {
    // 模拟项目更新数据
    this.projectService.getProjects().subscribe(projects => {
      this.projectService.getCustomerFeedbacks().subscribe(feedbacks => {
        // 合并项目和反馈，按时间倒序排序
        const updates: (Project | CustomerFeedback)[] = [
          ...projects,
          ...feedbacks
        ].sort((a, b) => {
          const dateA = 'createdAt' in a ? a.createdAt : new Date(a['updatedAt'] || a['deadline']);
          const dateB = 'createdAt' in b ? b.createdAt : new Date(b['updatedAt'] || b['deadline']);
          return dateB.getTime() - dateA.getTime();
        }).slice(0, 20); // 限制显示20条
        
        this.projectUpdates.set(updates);
      });
    });
  }

  // 处理任务完成
  markTaskAsCompleted(taskId: string): void {
    this.urgentTasks.set(
      this.urgentTasks().map(task => 
        task.id === taskId ? { ...task, isCompleted: true, status: '已完成' } : task
      )
    );
  }

  // 处理派单操作
  handleAssignment(taskId: string): void {
    // 标记任务为处理中
    const task = this.urgentTasks().find(t => t.id === taskId);
    if (task) {
      // 初始化处理状态
      this.taskProcessingState.update(state => ({
        ...state,
        [task.id]: { inProgress: true, progress: 0 }
      }));

      // 模拟处理进度
      let progress = 0;
      const interval = setInterval(() => {
        progress += 10;
        
        this.taskProcessingState.update(state => ({
          ...state,
          [task.id]: { inProgress: progress < 100, progress }
        }));

        if (progress >= 100) {
          clearInterval(interval);
          
          // 处理完成后从列表中移除该任务
          this.urgentTasks.set(
            this.urgentTasks().filter(t => t.id !== task.id)
          );
          
          // 清除处理状态
          this.taskProcessingState.update(state => {
            const newState = { ...state };
            delete newState[task.id];
            return newState;
          });
        }
      }, 300);
    }

    // 更新统计数据
    this.stats.pendingAssignments.set(this.stats.pendingAssignments() - 1);
  }

  // 显示任务表单
  showTaskForm(): void {
    // 重置表单数据
    this.newTask = {
      id: '',
      projectId: '',
      projectName: '',
      title: '',
      stage: '需求沟通',
      deadline: new Date(),
      isOverdue: false,
      isCompleted: false,
      priority: 'high',
      assignee: '当前用户',
      description: ''
    };
    
    // 重置相关状态
    this.deadlineError = '';
    this.isSubmitDisabled = false;
    
    // 计算并设置默认预设时长
    this.setDefaultPreset();
    
    // 显示表单
    this.isTaskFormVisible.set(true);
    
    // 添加iOS风格的面板显示动画
    setTimeout(() => {
      document.querySelector('.ios-panel')?.classList.add('ios-panel-visible');
    }, 10);
  }
  
  // 设置默认预设时长
  private setDefaultPreset(): void {
    const now = new Date();
    const todayEnd = new Date(now);
    todayEnd.setHours(23, 59, 59, 999);
    
    // 检查3小时后是否超过当天24:00
    const threeHoursLater = new Date(now.getTime() + 3 * 60 * 60 * 1000);
    
    if (threeHoursLater <= todayEnd) {
      // 3小时后未超过当天24:00，默认选中3小时内
      this.selectedPreset = '3';
      this.updatePresetDeadline(3);
    } else {
      // 3小时后超过当天24:00，默认选中当天24:00前
      this.selectedPreset = 'today';
      this.deadlineInput = todayEnd.toISOString().slice(0, 16);
      this.newTask.deadline = todayEnd;
    }
  }
  
  // 处理预设时长选择
  handlePresetSelection(preset: string): void {
    this.selectedPreset = preset;
    this.deadlineError = '';
    
    if (preset === 'custom') {
      // 打开自定义时间选择器
      this.openCustomTimePicker();
    } else if (preset === 'today') {
      // 设置为当天24:00前
      const now = new Date();
      const todayEnd = new Date(now);
      todayEnd.setHours(23, 59, 59, 999);
      
      this.deadlineInput = todayEnd.toISOString().slice(0, 16);
      this.newTask.deadline = todayEnd;
    } else {
      // 计算预设时长的截止时间
      const hours = parseInt(preset);
      this.updatePresetDeadline(hours);
    }
  }
  
  // 更新预设时长的截止时间
  private updatePresetDeadline(hours: number): void {
    const now = new Date();
    const deadline = new Date(now.getTime() + hours * 60 * 60 * 1000);
    
    this.deadlineInput = deadline.toISOString().slice(0, 16);
    this.newTask.deadline = deadline;
  }
  
  // 打开自定义时间选择器
  openCustomTimePicker(): void {
    // 重置自定义时间
    this.customDate = new Date();
    const now = new Date();
    this.customTime = `${now.getHours().toString().padStart(2, '0')}:${now.getMinutes().toString().padStart(2, '0')}`;
    
    // 显示自定义时间弹窗
    this.isCustomTimeVisible = true;
    
    // 添加iOS风格的弹窗动画
    setTimeout(() => {
      document.querySelector('.custom-time-modal')?.classList.add('modal-visible');
    }, 10);
  }
  
  // 关闭自定义时间选择器
  closeCustomTimePicker(): void {
    // 添加iOS风格的弹窗关闭动画
    const modal = document.querySelector('.custom-time-modal');
    if (modal) {
      modal.classList.remove('modal-visible');
      setTimeout(() => {
        this.isCustomTimeVisible = false;
      }, 300);
    } else {
      this.isCustomTimeVisible = false;
    }
  }
  
  // 处理自定义时间选择
  handleCustomTimeSelection(): void {
    const [hours, minutes] = this.customTime.split(':').map(Number);
    const selectedDateTime = new Date(this.customDate);
    selectedDateTime.setHours(hours, minutes, 0, 0);
    
    // 验证选择的时间是否有效
    if (this.validateDeadline(selectedDateTime)) {
      this.deadlineInput = selectedDateTime.toISOString().slice(0, 16);
      this.newTask.deadline = selectedDateTime;
      this.closeCustomTimePicker();
    }
  }
  
  // 验证截止时间是否有效
  validateDeadline(deadline: Date): boolean {
    const now = new Date();
    
    if (deadline < now) {
      this.deadlineError = '截止时间不能早于当前时间，请重新选择';
      this.isSubmitDisabled = true;
      return false;
    }
    
    this.deadlineError = '';
    this.isSubmitDisabled = false;
    return true;
  }
  
  // 获取显示的截止时间文本
  getDisplayDeadline(): string {
    if (!this.deadlineInput) return '';
    
    try {
      const date = new Date(this.deadlineInput);
      return date.toLocaleString('zh-CN', {
        year: 'numeric',
        month: '2-digit',
        day: '2-digit',
        hour: '2-digit',
        minute: '2-digit'
      });
    } catch (error) {
      return '';
    }
  }
  
  // 隐藏任务表单
  hideTaskForm(): void {
    // 添加iOS风格的面板隐藏动画
    const panel = document.querySelector('.ios-panel');
    if (panel) {
      panel.classList.remove('ios-panel-visible');
      setTimeout(() => {
        this.isTaskFormVisible.set(false);
      }, 300);
    } else {
      this.isTaskFormVisible.set(false);
    }
  }
  
  // 处理添加任务表单提交
  handleAddTaskSubmit(): void {
    // 验证表单数据
    if (!this.newTask.title.trim() || !this.newTask.projectName.trim() || !this.deadlineInput || this.isSubmitDisabled) {
      // 在实际应用中，这里应该显示错误提示
      alert('请填写必填字段（任务标题、项目名称、截止时间）');
      return;
    }
    
    // 创建新任务
    const taskToAdd: Task = {
      ...this.newTask,
      id: `task-${Date.now()}`,
      projectId: `project-${Math.floor(Math.random() * 1000)}`,
      deadline: new Date(this.deadlineInput),
      isOverdue: new Date(this.deadlineInput) < new Date()
    };
    
    // 添加到任务列表
    this.urgentTasks.set([taskToAdd, ...this.urgentTasks()]);
    
    // 更新统计数据
    this.stats.pendingAssignments.set(this.stats.pendingAssignments() + 1);
    
    // 隐藏表单
    this.hideTaskForm();
  }
  
  // 添加新的紧急事项
  addUrgentTask(): void {
    // 调用显示表单方法
    this.showTaskForm();
  }

  // 新咨询数图标点击处理
  handleNewConsultationsClick(): void {
    this.navigateToDetail('consultations');
  }

  // 待派单数图标点击处理
  handlePendingAssignmentsClick(): void {
    this.navigateToDetail('assignments');
  }

  // 异常项目图标点击处理
  handleExceptionProjectsClick(): void {
    this.navigateToDetail('exceptions');
  }

  // 今日成交额图标点击处理
  handleTodayRevenueClick(): void {
    this.navigateToDetail('revenue');
  }

  // 导航到详情页
  private navigateToDetail(type: 'consultations' | 'assignments' | 'exceptions' | 'revenue'): void {
    const routeMap = {
      consultations: '/customer-service/consultation-list',
      assignments: '/customer-service/assignment-list',
      exceptions: '/customer-service/exception-list',
      revenue: '/customer-service/revenue-detail'
    };
    
    console.log('导航到:', routeMap[type]);
    console.log('当前路由:', this.router.url);
    
    // 添加iOS风格页面过渡动画
    document.body.classList.add('ios-page-transition');
    setTimeout(() => {
      this.router.navigateByUrl(routeMap[type])
        .then(navResult => {
          console.log('导航结果:', navResult);
          if (!navResult) {
            console.error('导航失败，检查路由配置');
          }
        })
        .catch(err => {
          console.error('导航错误:', err);
        });
      
      setTimeout(() => {
        document.body.classList.remove('ios-page-transition');
      }, 300);
    }, 100);
  }

  // 格式化日期
  formatDate(date: Date | string): string {
    if (!date) return '';
    try {
      return new Date(date).toLocaleString('zh-CN', {
        month: '2-digit',
        day: '2-digit',
        hour: '2-digit',
        minute: '2-digit'
      });
    } catch (error) {
      console.error('日期格式化错误:', error);
      return '';
    }
  }

  // 添加安全获取客户名称的方法
getCustomerName(update: Project | CustomerFeedback): string {
  if ('customerName' in update && update.customerName) {
    return update.customerName;
  } else if ('projectId' in update) {
    // 查找相关项目获取客户名称
    return '客户反馈';
  }
  return '未知客户';
}

  // 优化的日期格式化方法
  getFormattedDate(update: Project | CustomerFeedback): string {
    if (!update) return '';
    
    if ('createdAt' in update && update.createdAt) {
      return this.formatDate(update.createdAt);
    } else if ('updatedAt' in update && update.updatedAt) {
      return this.formatDate(update.updatedAt);
    } else if ('deadline' in update && update.deadline) {
      return this.formatDate(update.deadline);
    }
    return '';
  }

  // 添加获取状态的安全方法
getUpdateStatus(update: Project | CustomerFeedback): string {
  if ('status' in update && update.status) {
    return update.status;
  }
  return '已更新';
}

  // 添加getTaskStatus方法的正确实现
  getTaskStatus(task: Task): string {
    if (!task) return '未知状态';
    if (task.isCompleted) return '已完成';
    if (task.isOverdue) return '已逾期';
    return '进行中';
  }

  // 添加getUpdateStatusClass方法的正确实现
  getUpdateStatusClass(update: Project | CustomerFeedback): string {
    if (!update || !('status' in update) || !update.status) return '';
    
    switch (update.status) {
      case '进行中':
        return 'status-active';
      case '已完成':
        return 'status-completed';
      case '已延期':
      case '已暂停':
        return 'status-warning';
      case '已解决':
        return 'status-success';
      case '待处理':
      case '处理中':
        return 'status-info';
      default:
        return '';
    }
  }
}