import { Component, OnInit } from '@angular/core';
import { CommonModule, NgFor, DatePipe } from '@angular/common';
import { debounceTime } from 'rxjs/operators';
import { DashboardService } from '../services/dashboard.service';

// NG-ZORRO 组件
import { NzCardModule } from 'ng-zorro-antd/card';
import { NzIconModule } from 'ng-zorro-antd/icon';
import { NzGridModule } from 'ng-zorro-antd/grid';
import { NzStatisticModule } from 'ng-zorro-antd/statistic';
import { NzSpinModule } from 'ng-zorro-antd/spin';
import { NzTableModule } from 'ng-zorro-antd/table';
import { NzDividerModule } from 'ng-zorro-antd/divider';
import { NzProgressModule } from 'ng-zorro-antd/progress';
import { NzPageHeaderModule } from 'ng-zorro-antd/page-header';
import { NzTagModule } from 'ng-zorro-antd/tag';
import { NzToolTipModule } from 'ng-zorro-antd/tooltip';
import { NzModalService } from 'ng-zorro-antd/modal';
import { NzMessageService } from 'ng-zorro-antd/message';

@Component({
  selector: 'app-dashboard',
  standalone: true,
  imports: [
    CommonModule,
    NgFor,
    DatePipe,
    // NG-ZORRO 模块
    NzCardModule,
    NzIconModule,
    NzGridModule,
    NzStatisticModule,
    NzSpinModule,
    NzTableModule,
    NzDividerModule,
    NzProgressModule,
    NzPageHeaderModule,
    NzTagModule,
    NzToolTipModule,
  ],
  providers: [NzModalService, NzMessageService],
  template: `
    <div class="dashboard-container">
      <nz-page-header [nzGhost]="false">
        <nz-page-header-title>数据看板</nz-page-header-title>
        <nz-page-header-extra>
          <span
            nz-icon
            nzType="sync"
            nzTheme="outline"
            (click)="refreshData()"
          ></span>
        </nz-page-header-extra>
        <nz-page-header-content>
          <p>
            最后更新时间：{{ lastUpdateTime | date : 'yyyy-MM-dd HH:mm:ss' }}
          </p>
        </nz-page-header-content>
      </nz-page-header>

      <nz-spin [nzSpinning]="isLoading" nzTip="数据加载中...">
        <!-- 核心指标卡片 -->
        <div class="metrics-container">
          <nz-row [nzGutter]="16">
            <!-- 日活用户数 -->
            <nz-col [nzXs]="24" [nzSm]="12" [nzMd]="8" [nzLg]="6">
              <nz-card nzHoverable>
                <nz-statistic
                  [nzTitle]="'日活用户(DAU)'"
                  [nzValue]="activeUsersToday"
                  [nzPrefix]="userIcon"
                  [nzSuffix]="'人'"
                  [nzValueStyle]="{ color: '#1890ff' }"
                ></nz-statistic>
                <ng-template #userIcon>
                  <span nz-icon nzType="user" nzTheme="outline"></span>
                </ng-template>
                <div class="compare">
                  <span>实时数据自动更新</span>
                </div>
              </nz-card>
            </nz-col>

            <!-- 日均广告收益 -->
            <nz-col [nzXs]="24" [nzSm]="12" [nzMd]="8" [nzLg]="6">
              <nz-card nzHoverable>
                <nz-statistic
                  [nzTitle]="'日广告收益'"
                  [nzValue]="dailyRevenue"
                  [nzPrefix]="revenueIcon"
                  [nzSuffix]="'元'"
                  [nzValueStyle]="{ color: '#faad14' }"
                ></nz-statistic>
                <ng-template #revenueIcon>
                  <span nz-icon nzType="dollar" nzTheme="outline"></span>
                </ng-template>
                <div class="compare">
                  <span>来自广告平台</span>
                </div>
              </nz-card>
            </nz-col>

            <!-- DAU 趋势占位 -->
            <nz-col [nzXs]="24" [nzSm]="12" [nzMd]="8" [nzLg]="6">
              <nz-card nzHoverable>
                <nz-statistic
                  [nzTitle]="'7日平均DAU'"
                  [nzValue]="avgDau7d"
                  [nzPrefix]="trendIcon"
                  [nzSuffix]="'人'"
                  [nzValueStyle]="{ color: '#13c2c2' }"
                ></nz-statistic>
                <ng-template #trendIcon>
                  <span nz-icon nzType="line-chart" nzTheme="outline"></span>
                </ng-template>
                <div class="compare">
                  <span>近 7 天平均值</span>
                </div>
              </nz-card>
            </nz-col>

            <!-- 收益趋势占位 -->
            <nz-col [nzXs]="24" [nzSm]="12" [nzMd]="8" [nzLg]="6">
              <nz-card nzHoverable>
                <nz-statistic
                  [nzTitle]="'7日收益总额'"
                  [nzValue]="totalRevenue7d"
                  [nzPrefix]="totalRevenueIcon"
                  [nzSuffix]="'元'"
                  [nzValueStyle]="{ color: '#eb2f96' }"
                ></nz-statistic>
                <ng-template #totalRevenueIcon>
                  <span nz-icon nzType="bar-chart" nzTheme="outline"></span>
                </ng-template>
                <div class="compare">
                  <span>近 7 天累计</span>
                </div>
              </nz-card>
            </nz-col>
          </nz-row>
        </div>

        <!-- 广告收益部分 -->
        <div class="section">
          <h3 class="section-title">今日广告收益</h3>
          <nz-row [nzGutter]="16">
            <nz-col [nzXs]="24" [nzSm]="12" [nzMd]="8">
              <nz-card nzHoverable>
                <nz-statistic
                  [nzTitle]="'Banner广告收益'"
                  [nzValue]="bannerRevenue"
                  [nzPrefix]="bannerIcon"
                  [nzSuffix]="'元'"
                  [nzValueStyle]="{ color: '#fa8c16' }"
                ></nz-statistic>
                <ng-template #bannerIcon>
                  <span nz-icon nzType="picture" nzTheme="outline"></span>
                </ng-template>
                <div class="compare">
                  <span>展示量 {{ bannerImpressions }} 次</span>
                </div>
              </nz-card>
            </nz-col>

            <nz-col [nzXs]="24" [nzSm]="12" [nzMd]="8">
              <nz-card nzHoverable>
                <nz-statistic
                  [nzTitle]="'插屏广告收益'"
                  [nzValue]="interstitialRevenue"
                  [nzPrefix]="interstitialIcon"
                  [nzSuffix]="'元'"
                  [nzValueStyle]="{ color: '#fa541c' }"
                ></nz-statistic>
                <ng-template #interstitialIcon>
                  <span nz-icon nzType="switcher" nzTheme="outline"></span>
                </ng-template>
                <div class="compare">
                  <span>展示量 {{ interstitialImpressions }} 次</span>
                </div>
              </nz-card>
            </nz-col>

            <nz-col [nzXs]="24" [nzSm]="12" [nzMd]="8">
              <nz-card nzHoverable>
                <nz-statistic
                  [nzTitle]="'激励广告收益'"
                  [nzValue]="rewardedRevenue"
                  [nzPrefix]="rewardedIcon"
                  [nzSuffix]="'元'"
                  [nzValueStyle]="{ color: '#eb2f96' }"
                ></nz-statistic>
                <ng-template #rewardedIcon>
                  <span nz-icon nzType="gift" nzTheme="outline"></span>
                </ng-template>
                <div class="compare">
                  <span>展示量 {{ rewardedImpressions }} 次</span>
                </div>
              </nz-card>
            </nz-col>
          </nz-row>
        </div>

        <!-- 今日上新作品 -->
        <div class="section">
          <h3 class="section-title">今日上新作品</h3>
          <nz-table
            #worksTable
            [nzData]="newWorksToday"
            [nzLoading]="isLoading"
            [nzFrontPagination]="false"
            [nzBordered]="true"
            [nzSize]="'small'"
          >
            <thead>
              <tr>
                <th>作品</th>
                <th>名称</th>
                <th>填色开始数</th>
                <th>填色完成数</th>
                <th>完成率</th>
                <th>操作</th>
              </tr>
            </thead>
            <tbody>
              <tr *ngFor="let work of worksTable.data">
                <td>
                  <div
                    class="work-thumbnail"
                    [style.backgroundImage]="'url(' + work.thumbnail + ')'"
                  ></div>
                </td>
                <td>{{ work.name }}</td>
                <td>{{ work.startedCount }}</td>
                <td>{{ work.completedCount }}</td>
                <td>
                  <nz-progress
                    [nzPercent]="work.completionRate"
                    [nzStrokeColor]="
                      work.completionRate > 70
                        ? '#52c41a'
                        : work.completionRate > 30
                        ? '#faad14'
                        : '#f5222d'
                    "
                    [nzShowInfo]="true"
                    [nzStrokeWidth]="5"
                  ></nz-progress>
                </td>
                <td>
                  <a (click)="showWorkDetails(work)">详情</a>
                </td>
              </tr>
            </tbody>
          </nz-table>
        </div>
      </nz-spin>
    </div>
  `,
  styles: [
    `
      .dashboard-container {
        padding: 24px;
        background: #f0f2f5;
        min-height: 100%;
      }

      .metrics-container {
        margin-bottom: 24px;
      }

      .section {
        background: #fff;
        padding: 16px 24px;
        border-radius: 8px;
        margin-bottom: 24px;
        box-shadow: 0 1px 2px 0 rgba(0, 0, 0, 0.03);
      }

      .section-title {
        margin-bottom: 16px;
        font-size: 18px;
        color: rgba(0, 0, 0, 0.85);
      }

      nz-card {
        margin-bottom: 16px;
        transition: all 0.3s;
      }

      nz-card:hover {
        box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
        transform: translateY(-4px);
      }

      .compare {
        margin-top: 8px;
        font-size: 12px;
        color: rgba(0, 0, 0, 0.45);
      }

      .work-thumbnail {
        width: 60px;
        height: 60px;
        background-size: cover;
        background-position: center;
        border-radius: 4px;
      }

      .ant-statistic-content {
        display: flex;
        flex-direction: column;
        align-items: center;
      }

      .ant-statistic-title {
        font-size: 14px;
        color: rgba(0, 0, 0, 0.65);
      }

      .ant-statistic-content-value {
        font-size: 28px;
      }

      .ant-statistic-content-suffix {
        font-size: 16px;
      }
    `,
  ],
})
export class DashboardComponent implements OnInit {
  isLoading = true;
  lastUpdateTime = new Date();
  Math = Math; // 暴露 Math 对象给模板使antml

  // 核心指标数据（来自 KPI 接口）
  activeUsersToday = 0; // 日活用户数
  dailyRevenue = 0; // 当日广告收益
  
  // DAU 趋势数据
  dauTrendLabels: string[] = [];
  dauTrendData: number[] = [];
  avgDau7d = 0;
  
  // 收益趋势数据
  revenueTrendLabels: string[] = [];
  revenueTrendData: number[] = [];
  totalRevenue7d = 0;

  // 广告收益数据（暂时保留，后续可删除）
  bannerRevenue = 0;
  interstitialRevenue = 0;
  rewardedRevenue = 0;
  bannerImpressions = 0;
  interstitialImpressions = 0;
  rewardedImpressions = 0;

  // 今日上新作品
  newWorksToday: any[] = [];

  constructor(
    private modalService: NzModalService,
    private message: NzMessageService,
    private dashboardService: DashboardService
  ) {}

  ngOnInit(): void {
    this.loadDashboardData();
  }

  refreshData(): void {
    this.isLoading = true;
    this.loadDashboardData();
  }

  loadDashboardData(): void {
    this.dashboardService.getKpi(7).subscribe({
      next: (response) => {
        if (response.success) {
          const { dau, revenue } = response.data;
          
          // 更新 KPI 数据
          this.activeUsersToday = dau.today;
          this.dailyRevenue = revenue.today;
          
          // 更新 DAU 趋势
          this.dauTrendLabels = dau.trend.map((item) => item.date);
          this.dauTrendData = dau.trend.map((item) => item.dau);
          const dauSum = this.dauTrendData.reduce((sum, value) => sum + value, 0);
          this.avgDau7d = this.dauTrendData.length > 0 ? Math.round(dauSum / this.dauTrendData.length) : 0;
          
          // 更新收益趋势
          this.revenueTrendLabels = revenue.trend.map((item) => item.date);
          this.revenueTrendData = revenue.trend.map((item) => item.revenue);
          const revenueSum = this.revenueTrendData.reduce((sum, value) => sum + value, 0);
          this.totalRevenue7d = Math.round(revenueSum);
          
          // 模拟广告收益细分（后续可从其他接口获取）
          this.bannerRevenue = revenue.today * 0.35;
          this.interstitialRevenue = revenue.today * 0.40;
          this.rewardedRevenue = revenue.today * 0.25;
          this.bannerImpressions = Math.floor(Math.random() * 30000);
          this.interstitialImpressions = Math.floor(Math.random() * 10000);
          this.rewardedImpressions = Math.floor(Math.random() * 8000);
          
          // 模拟上新作品数据（后续可从接口获取）
          this.newWorksToday = [
            {
              id: 1,
              name: '作品 #1',
              thumbnail: 'https://via.placeholder.com/60',
              startedCount: Math.floor(Math.random() * 2000),
              completedCount: Math.floor(Math.random() * 1000),
            },
            {
              id: 2,
              name: '作品 #2',
              thumbnail: 'https://via.placeholder.com/60',
              startedCount: Math.floor(Math.random() * 2000),
              completedCount: Math.floor(Math.random() * 1000),
            },
            {
              id: 3,
              name: '作品 #3',
              thumbnail: 'https://via.placeholder.com/60',
              startedCount: Math.floor(Math.random() * 2000),
              completedCount: Math.floor(Math.random() * 1000),
            },
          ];
          
          this.newWorksToday = this.newWorksToday.map((work) => ({
            ...work,
            completionRate: work.startedCount > 0 
              ? Math.round((work.completedCount / work.startedCount) * 100)
              : 0,
          }));
          
          this.lastUpdateTime = new Date();
          this.isLoading = false;
        } else {
          this.message.error('获取 KPI 数据失败');
          this.isLoading = false;
        }
      },
      error: (error) => {
        console.error('Failed to load KPI data:', error);
        this.message.error('加载数据出错，请重试');
        this.isLoading = false;
      },
    });
  }

  showWorkDetails(work: any): void {
    this.modalService.create({
      nzTitle: '作品详情',
      nzContent: `
        <div style="padding: 16px;">
          <div style="text-align: center; margin-bottom: 16px;">
            <img src="${work.thumbnail}" style="max-width: 100%; max-height: 300px; border-radius: 4px;">
          </div>
          <p><strong>作品名称:</strong> ${work.name}</p>
          <p><strong>填色开始数:</strong> ${work.startedCount}</p>
          <p><strong>填色完成数:</strong> ${work.completedCount}</p>
          <p><strong>完成率:</strong> ${work.completionRate}%</p>
        </div>
      `,
      nzFooter: null,
    });
  }
}