import { Row, Col, Card, Avatar, Tooltip } from 'antd'
import {
  BarChartOutlined,
  EyeOutlined,
  CalendarOutlined,
  FireOutlined,
} from '@ant-design/icons'
import './Dashboard.css'

// 假数据：近 9 期收视（基础目标 0.6，摸高目标 0.9）
const fakeEpisodes = [
  { id: 1, title: '第 1247 期 现代防空反导大对决', editor: 'simonkoson', share: 0.72 },
  { id: 2, title: '第 1246 期 深海暗战', editor: 'simonkoson', share: 0.85 },
  { id: 3, title: '第 1245 期 隐形战场', editor: 'simonkoson', share: 0.94 },
  { id: 4, title: '第 1244 期 无人机革命', editor: 'simonkoson', share: 0.65 },
  { id: 5, title: '第 1243 期 核潜艇传奇', editor: 'simonkoson', share: 0.58 },
  { id: 6, title: '第 1242 期 电子战风暴', editor: 'simonkoson', share: 0.88 },
  { id: 7, title: '第 1241 期 太空博弈', editor: 'simonkoson', share: 0.91 },
  { id: 8, title: '第 1240 期 装甲对决', editor: 'simonkoson', share: 0.67 },
  { id: 9, title: '第 1239 期 隐身战机', editor: 'simonkoson', share: 0.55 },
]

const BASE_TARGET = 0.6
const STRETCH_TARGET = 0.9

function getBarColor(share) {
  if (share > STRETCH_TARGET) return '#cf1322' // 红=优秀
  if (share >= BASE_TARGET) return '#6b8e6b'   // 蓝=达标
  return '#d4a017'                               // 绿=待提升
}

function getBarHeight(share) {
  return Math.round((share / 1.0) * 180)
}

function getShortTitle(title) {
  return title.length > 12 ? title.slice(0, 12) + '...' : title
}

function Dashboard() {
  return (
    <div className="dashboard">
      {/* 顶部 Banner */}
      <div className="dashboard-banner">
        <div className="banner-text">
          <h2>本月收视最佳</h2>
          <p>第 1245 期 隐形战场 · 收视份额 0.94</p>
        </div>
        <div className="banner-image-placeholder">
          <span>题图位 · 待 Phase 2 实装</span>
        </div>
      </div>

      {/* KPI Cards */}
      <Row gutter={16} className="kpi-row">
        <Col span={8}>
          <Card className="kpi-card">
            <div className="kpi-icon" style={{ background: '#e8f5e9' }}>
              <EyeOutlined style={{ color: '#6b8e6b', fontSize: 24 }} />
            </div>
            <div className="kpi-info">
              <span className="kpi-value">0.82</span>
              <span className="kpi-label">本期平均收视</span>
            </div>
          </Card>
        </Col>
        <Col span={8}>
          <Card className="kpi-card">
            <div className="kpi-icon" style={{ background: '#fff3e0' }}>
              <FireOutlined style={{ color: '#ff9800', fontSize: 24 }} />
            </div>
            <div className="kpi-info">
              <span className="kpi-value">98.6%</span>
              <span className="kpi-label">完成率</span>
            </div>
          </Card>
        </Col>
        <Col span={8}>
          <Card className="kpi-card">
            <div className="kpi-icon" style={{ background: '#e3f2fd' }}>
              <CalendarOutlined style={{ color: '#2196f3', fontSize: 24 }} />
            </div>
            <div className="kpi-info">
              <span className="kpi-value">6</span>
              <span className="kpi-label">未来待排期</span>
            </div>
          </Card>
        </Col>
      </Row>

      {/* 三卡片区域 */}
      <Row gutter={16} className="cards-row">
        {/* 热点雷达 */}
        <Col span={8}>
          <Card className="content-card" title="热点雷达">
            <div className="placeholder-text">
              <BarChartOutlined style={{ fontSize: 32, color: '#ccc', marginBottom: 8 }} />
              <p>模块 H · Phase 4c 实施</p>
              <small>热点雷达将在 Phase 4c 开发，作为编导个人首页的核心功能</small>
            </div>
          </Card>
        </Col>

        {/* 近 9 期收视柱图 */}
        <Col span={8}>
          <Card className="content-card" title="近 9 期收视">
            <div className="chart-container">
              <div className="bars-wrapper">
                {fakeEpisodes.map((ep) => (
                  <div key={ep.id} className="bar-item">
                    <Tooltip title={`${ep.title} · ${ep.share}`}>
                      <div
                        className="bar"
                        style={{
                          height: getBarHeight(ep.share),
                          backgroundColor: getBarColor(ep.share),
                        }}
                      />
                    </Tooltip>
                    <div className="bar-label-top">{getShortTitle(ep.title)}</div>
                    <div className="bar-label-bottom">
                      <Avatar size={20} style={{ fontSize: 10 }}>{ep.editor[0]}</Avatar>
                      <span>{ep.editor}</span>
                    </div>
                  </div>
                ))}
              </div>
              <div className="chart-legend">
                <span className="legend-item"><span className="dot" style={{ background: '#cf1322' }}></span>红=优秀</span>
                <span className="legend-item"><span className="dot" style={{ background: '#6b8e6b' }}></span>蓝=达标</span>
                <span className="legend-item"><span className="dot" style={{ background: '#d4a017' }}></span>绿=待提升</span>
              </div>
            </div>
          </Card>
        </Col>

        {/* 排播计划 */}
        <Col span={8}>
          <Card className="content-card" title="排播计划">
            <div className="placeholder-text">
              <CalendarOutlined style={{ fontSize: 32, color: '#ccc', marginBottom: 8 }} />
              <p>模块 F · Phase 4b 实施</p>
              <small>甘特图排期将在 Phase 4b 开发，使用 frappe-gantt 实现拖拽排期</small>
            </div>
          </Card>
        </Col>
      </Row>
    </div>
  )
}

export default Dashboard