/**
 * 柜子详情页
 * - 显示柜子基本信息（ID、状态）
 * - 按仓控板分组展示 6 个通道的状态卡片
 */
import { useEffect, useState } from 'react';
import { useParams, useNavigate } from 'react-router-dom';
import {
  Card,
  Tag,
  Typography,
  Spin,
  Grid,
  Button,
  Descriptions,
  Message,
  Modal,
} from '@arco-design/web-react';
import { IconLeft, IconDesktop } from '@arco-design/web-react/icon';
import { cabinetApi, type CabinetDetail } from '@/api/devices';

const Row = Grid.Row;
const Col = Grid.Col;

/** 状态映射 */
const STATUS_MAP: Record<number, { label: string; color: string }> = {
  0: { label: '空闲', color: 'green' },
  1: { label: '充电中', color: 'blue' },
  2: { label: '故障', color: 'red' },
  3: { label: '禁用', color: 'orange' },
};

/** 柜子状态映射 */
const CABINET_STATUS_MAP: Record<number, { label: string; color: string }> = {
  0: { label: '离线', color: 'gray' },
  1: { label: '在线', color: 'green' },
  2: { label: '充电中', color: 'blue' },
  3: { label: '故障', color: 'red' },
};

export default function CabinetDetail() {
  const { id } = useParams<{ id: string }>();
  const navigate = useNavigate();
  const [loading, setLoading] = useState(true);
  const [detail, setDetail] = useState<CabinetDetail | null>(null);
  const [powLoading, setPowLoading] = useState(false);

  useEffect(() => {
    if (!id) return;
    setLoading(true);
    cabinetApi
      .getDetail(Number(id))
      .then((res) => setDetail(res.data))
      .catch(() => {
        // 如果详情接口不可用，显示提示
      })
      .finally(() => setLoading(false));
  }, [id]);

  /** 接触器合闸 */
  const handlePowOn = () => {
    if (!id) return;
    Modal.confirm({
      title: '确认操作',
      content: '确定要合闸恢复380V供电吗？',
      onOk: async () => {
        setPowLoading(true);
        try {
          await cabinetApi.powOn(Number(id));
          Message.success('合闸指令已发送');
          // 刷新详情
          const res = await cabinetApi.getDetail(Number(id));
          setDetail(res.data);
        } catch {
          Message.error('操作失败');
        } finally {
          setPowLoading(false);
        }
      },
    });
  };

  /** 接触器分闸 */
  const handlePowOff = () => {
    if (!id) return;
    Modal.confirm({
      title: '确认操作',
      content: '确定要分闸切断380V供电吗？',
      onOk: async () => {
        setPowLoading(true);
        try {
          await cabinetApi.powOff(Number(id));
          Message.success('分闸指令已发送');
          // 刷新详情
          const res = await cabinetApi.getDetail(Number(id));
          setDetail(res.data);
        } catch {
          Message.error('操作失败');
        } finally {
          setPowLoading(false);
        }
      },
    });
  };

  if (loading) {
    return (
      <Card>
        <div style={{ textAlign: 'center', padding: '60px 0' }}>
          <Spin dot />
        </div>
      </Card>
    );
  }

  if (!detail) {
    return (
      <Card>
        <Typography.Text type="secondary">柜子不存在或加载失败</Typography.Text>
      </Card>
    );
  }

  const cabStatus = CABINET_STATUS_MAP[detail.status] || { label: '未知', color: 'gray' };

  return (
    <div style={{ display: 'flex', flexDirection: 'column', gap: 16 }}>
      {/* 顶部导航 */}
      <Card>
        <div
          style={{
            display: 'flex',
            alignItems: 'center',
            justifyContent: 'space-between',
          }}
        >
          <div style={{ display: 'flex', alignItems: 'center', gap: 12 }}>
            <Button
              type="text"
              icon={<IconLeft />}
              onClick={() => navigate('/devices')}
            >
              返回
            </Button>
            <IconDesktop style={{ fontSize: 24, color: 'var(--color-text-2)' }} />
            <Typography.Title heading={5} style={{ margin: 0 }}>
              柜子 {detail.abstract_id}
            </Typography.Title>
            <Tag color={cabStatus.color}>{cabStatus.label}</Tag>
          </div>
        </div>
      </Card>

      {/* 柜子信息 */}
      <Card title="基本信息" size="small">
        <div style={{ display: 'flex', justifyContent: 'space-between', alignItems: 'flex-start' }}>
          <Descriptions
            data={[
              { label: '抽象 ID', value: detail.abstract_id },
              { label: 'IMEI', value: detail.imei },
              { label: '名称', value: detail.name || '-' },
              { label: '状态', value: cabStatus.label },
            ]}
            column={2}
            layout="horizontal"
            labelStyle={{ paddingRight: 36 }}
          />
          <div style={{ display: 'flex', gap: 8 }}>
            <Button
              type="primary"
              status="success"
              loading={powLoading}
              onClick={handlePowOn}
            >
              合闸供电
            </Button>
            <Button
              type="primary"
              status="danger"
              loading={powLoading}
              onClick={handlePowOff}
            >
              分闸断电
            </Button>
          </div>
        </div>
      </Card>

      {/* 仓控板列表 */}
      {detail.cabin_boards.map((board) => (
        <Card
          key={board.id}
          title={`仓板 ${board.board_id} (ID: ${board.id})`}
          size="small"
        >
          <Row gutter={[16, 16]}>
            {board.compartments.map((comp) => {
              const st = STATUS_MAP[comp.status] || { label: '未知', color: 'gray' };
              return (
                <Col key={comp.id} xs={12} sm={8} md={6} lg={4}>
                  <Card
                    size="small"
                    hoverable
                    style={{ textAlign: 'center' }}
                  >
                    <div style={{ fontSize: 16, fontWeight: 600, marginBottom: 8 }}>
                      通道 {comp.channel_id}
                    </div>
                    <Tag color={st.color} style={{ marginBottom: 8 }}>
                      {st.label}
                    </Tag>
                    <div style={{ fontSize: 12, color: 'var(--color-text-3)', lineHeight: 1.8 }}>
                      <div>电压: 0.0V</div>
                      <div>电流: 0.0A</div>
                      <div>功率: 0W</div>
                    </div>
                  </Card>
                </Col>
              );
            })}
          </Row>
        </Card>
      ))}
    </div>
  );
}