import { Component, Input, Output, EventEmitter, OnInit } from '@angular/core';
import { CommonModule } from '@angular/common';
import { FormsModule } from '@angular/forms';
import { DesignerTeamAssignmentModalComponent } from '../../../pages/designer/project-detail/components/designer-team-assignment-modal/designer-team-assignment-modal.component';
import type { DesignerAssignmentResult } from '../../../pages/designer/project-detail/components/designer-team-assignment-modal/designer-team-assignment-modal.component';

interface ApprovalData {
  projectId: string;
  projectName: string;
  quotationTotal: number;
  assignedTeams: TeamInfo[];
  projectInfo: {
    title: string;
    projectType: string;
    demoday: Date;
    deadline?: Date;
  };
  submitter: {
    id: string;
    name: string;
    role: string;
  };
  submitTime: Date;
}

interface TeamInfo {
  id: string;
  name: string;
  spaces: string[];
}

@Component({
  selector: 'app-order-approval-panel',
  standalone: true,
  imports: [CommonModule, FormsModule, DesignerTeamAssignmentModalComponent],
  templateUrl: './order-approval-panel.component.html',
  styleUrls: ['./order-approval-panel.component.scss']
})
export class OrderApprovalPanelComponent implements OnInit {
  @Input() project: any;  // Parse Project 对象
  @Input() currentUser: any;  // 当前组长用户
  @Output() approvalCompleted = new EventEmitter<{
    action: 'approved' | 'rejected';
    reason?: string;
    comment?: string;
  }>();

  approvalData: ApprovalData | null = null;
  showRejectModal = false;
  rejectReason = '';
  approvalComment = '';
  isSubmitting = false;

  // 驳回原因快捷选项
  rejectReasons = [
    '报价不合理，需要调整',
    '设计师分配不当',
    '项目信息不完整',
    '需要补充项目资料',
    '其他原因（请在下方说明）'
  ];

  selectedRejectReason = '';

  // 编辑设计师分配相关
  isEditingTeams = false;
  editedTeams: TeamInfo[] = [];
  availableDesigners: any[] = [];
  
  // 设计师分配弹窗
  showDesignerModal = false;

  ngOnInit() {
    this.loadApprovalData();
  }

  /**
   * 加载审批数据
   */
  private loadApprovalData() {
    if (!this.project) return;

    const data = this.project.get('data') || {};
    const approvalHistory = data.approvalHistory || [];
    const latestRecord = approvalHistory[approvalHistory.length - 1];

    this.approvalData = {
      projectId: this.project.id,
      projectName: this.project.get('title'),
      quotationTotal: latestRecord?.quotationTotal || 0,
      assignedTeams: latestRecord?.teams || [],
      projectInfo: {
        title: this.project.get('title'),
        projectType: this.project.get('projectType'),
        demoday: this.project.get('demoday'),
        deadline: this.project.get('deadline')
      },
      submitter: latestRecord?.submitter || { id: '', name: '未知', role: '未知' },
      submitTime: latestRecord?.submitTime || new Date()
    };
  }

  /**
   * 通过审批
   */
  async approveOrder() {
    if (this.isSubmitting) return;
    
    const confirmed = confirm('确认通过此订单审批吗？');
    if (!confirmed) return;

    this.isSubmitting = true;

    try {
      this.approvalCompleted.emit({
        action: 'approved',
        comment: this.approvalComment || undefined
      });
    } finally {
      this.isSubmitting = false;
    }
  }

  /**
   * 打开驳回弹窗
   */
  openRejectModal() {
    this.showRejectModal = true;
    this.rejectReason = '';
    this.selectedRejectReason = '';
    this.approvalComment = '';
  }

  /**
   * 关闭驳回弹窗
   */
  closeRejectModal() {
    this.showRejectModal = false;
  }

  /**
   * 选择驳回原因
   */
  selectRejectReason(reason: string) {
    this.selectedRejectReason = reason;
    if (reason !== '其他原因（请在下方说明）') {
      this.rejectReason = reason;
    } else {
      this.rejectReason = '';
    }
  }

  /**
   * 提交驳回
   */
  async submitRejection() {
    const finalReason = this.selectedRejectReason === '其他原因（请在下方说明）' 
      ? this.rejectReason 
      : this.selectedRejectReason;

    if (!finalReason || !finalReason.trim()) {
      alert('请填写驳回原因');
      return;
    }

    if (this.isSubmitting) return;
    this.isSubmitting = true;

    try {
      this.approvalCompleted.emit({
        action: 'rejected',
        reason: finalReason,
        comment: this.approvalComment || undefined
      });
      this.closeRejectModal();
    } finally {
      this.isSubmitting = false;
    }
  }

  /**
   * 格式化金额
   */
  formatCurrency(amount: number): string {
    return `¥${amount.toLocaleString('zh-CN', { minimumFractionDigits: 2, maximumFractionDigits: 2 })}`;
  }

  /**
   * 开启编辑设计师分配模式
   */
  startEditTeams() {
    this.isEditingTeams = true;
    // 深拷贝当前团队数据，避免直接修改原数据
    this.editedTeams = JSON.parse(JSON.stringify(this.approvalData?.assignedTeams || []));
    // 加载可用设计师列表（这里需要从数据库加载）
    this.loadAvailableDesigners();
  }

  /**
   * 取消编辑设计师分配
   */
  cancelEditTeams() {
    this.isEditingTeams = false;
    this.editedTeams = [];
  }

  /**
   * 保存设计师分配修改
   */
  saveTeamsEdit() {
    if (!this.approvalData) return;
    
    // 更新审批数据中的团队信息
    this.approvalData.assignedTeams = JSON.parse(JSON.stringify(this.editedTeams));
    
    // 更新项目数据
    const data = this.project.get('data') || {};
    const approvalHistory = data.approvalHistory || [];
    const latestRecord = approvalHistory[approvalHistory.length - 1];
    if (latestRecord) {
      latestRecord.teams = this.editedTeams;
      this.project.set('data', data);
    }
    
    this.isEditingTeams = false;
    alert('设计师分配已更新');
  }

  /**
   * 加载可用设计师列表
   */
  private async loadAvailableDesigners() {
    // TODO: 从数据库加载设计师列表
    // 这里暂时使用模拟数据
    this.availableDesigners = [
      { id: '1', name: '张三', avatar: '' },
      { id: '2', name: '李四', avatar: '' },
      { id: '3', name: '王五', avatar: '' }
    ];
  }

  /**
   * 移除团队成员
   */
  removeTeam(index: number) {
    this.editedTeams.splice(index, 1);
  }

  /**
   * 添加团队成员（打开设计师选择弹窗）
   */
  addTeamMember() {
    this.showDesignerModal = true;
  }

  /**
   * 关闭设计师选择弹窗
   */
  closeDesignerModal() {
    this.showDesignerModal = false;
  }

  /**
   * 处理设计师选择结果
   */
  handleDesignerAssignment(result: DesignerAssignmentResult) {
    console.log('设计师分配结果:', result);
    
    // 将选择的设计师添加到编辑列表中
    if (result.selectedDesigners && result.selectedDesigners.length > 0) {
      result.selectedDesigners.forEach(designer => {
        // 查找该设计师的空间分配
        const spaceAssignment = result.spaceAssignments?.find(
          sa => sa.designerId === designer.id
        );
        
        // 获取空间名称列表（直接使用spaceIds，它们通常已经是名称或可读ID）
        let spaces: string[] = [];
        if (spaceAssignment && spaceAssignment.spaceIds && spaceAssignment.spaceIds.length > 0) {
          spaces = spaceAssignment.spaceIds;
        }
        
        // 检查是否已存在该设计师（避免重复添加）
        const existingIndex = this.editedTeams.findIndex(t => t.id === designer.id);
        if (existingIndex >= 0) {
          // 更新现有设计师的空间
          this.editedTeams[existingIndex].spaces = spaces;
          alert(`已更新 ${designer.name} 的空间分配`);
        } else {
          // 添加新设计师
          this.editedTeams.push({
            id: designer.id,
            name: designer.name,
            spaces: spaces
          });
          alert(`已添加设计师：${designer.name}${spaces.length > 0 ? '\n负责空间：' + spaces.join(', ') : ''}`);
        }
      });
    }
    
    this.closeDesignerModal();
  }

  /**
   * 编辑团队空间
   */
  editTeamSpaces(team: TeamInfo) {
    const currentSpaces = team.spaces.join(', ');
    const spacesInput = prompt('请输入负责的空间（用逗号分隔）：', currentSpaces);
    if (spacesInput !== null) {
      team.spaces = spacesInput.split(',').map(s => s.trim()).filter(s => s);
    }
  }
}