/**
 * 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,
  Space,
  Spin,
  Button,
  Descriptions,
  Message,
  Modal,
} from '@arco-design/web-react';
import { IconLeft, IconDesktop, IconCopy, IconUnlock, IconPlayArrow, IconPoweroff } from '@arco-design/web-react/icon';
import { cabinetApi, type CabinetDetail } from '@/api/devices';

/** 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: 'red' },
  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);
  const [doorLoading, setDoorLoading] = useState(false);

  /** 复制到剪贴板 */
  const copyText = (text: string, label: string) => {
    navigator.clipboard.writeText(text).then(
      () => Message.success(`${label} 已复制`),
      () => Message.error('复制失败'),
    );
  };

  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]);

  /** 开门 */
  const handleOpenDoor = async () => {
    if (!detail) return;
    setDoorLoading(true);
    try {
      const firstComp = detail.cabin_boards[0]?.compartments[0];
      if (!firstComp) { Message.warning('没有可用的仓体'); return; }
      await cabinetApi.openDoor(firstComp.id);
      Message.success('开门指令已发送');
    } catch { Message.error('开门失败'); }
    finally { setDoorLoading(false); }
  };

  /** 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"
        extra={
          <Space>
            <Button loading={doorLoading} icon={<IconUnlock />} onClick={handleOpenDoor}>开门</Button>
            <Button type="primary" status="success" loading={powLoading} icon={<IconPlayArrow />} onClick={handlePowOn}>
              合闸供电
            </Button>
            <Button type="primary" status="danger" loading={powLoading} icon={<IconPoweroff />} onClick={handlePowOff}>
              分闸断电
            </Button>
          </Space>
        }
      >
        <Descriptions
          data={[
            { label: '抽象 ID', value: <>{detail.abstract_id} <IconCopy style={{ cursor: 'pointer', color: 'var(--color-text-3)' }} onClick={() => copyText(detail.abstract_id!, '抽象ID')} /></> },
            { label: 'IMEI', value: <>{detail.imei} <IconCopy style={{ cursor: 'pointer', color: 'var(--color-text-3)' }} onClick={() => copyText(detail.imei, 'IMEI')} /></> },
            { label: 'ICCID', value: <>{detail.iccid || '-'} {detail.iccid && <IconCopy style={{ cursor: 'pointer', color: 'var(--color-text-3)' }} onClick={() => copyText(detail.iccid!, 'ICCID')} />}</> },
            { label: '名称', value: detail.name || '-' },
            { label: '状态', value: <Tag color={cabStatus.color}>{cabStatus.label}</Tag> },
            { label: 'RSSI', value: detail.rssi != null ? String(detail.rssi) : '-' },
            { label: '直流供电', value: detail.pow_fail_dc === true ? <span style={{ color: '#dc2626' }}>断电</span> : detail.pow_fail_dc === false ? <span style={{ color: '#16a34a' }}>正常</span> : '-' },
            { label: '交流供电', value: detail.pow_fail_ac === true ? <span style={{ color: '#dc2626' }}>断电</span> : detail.pow_fail_ac === false ? <span style={{ color: '#16a34a' }}>正常</span> : '-' },
            { label: '地址', value: detail.address || '-' },
          ]}
          column={3}
          layout="horizontal"
          labelStyle={{ paddingRight: 36 }}
        />
      </Card>

      {/* 仓控板列表 */}
      {detail.cabin_boards.map((board) => (
        <Card
          key={board.id}
          title={`${detail.imei}-${board.board_id}`}
          extra={<IconCopy style={{ cursor: 'pointer', color: 'var(--color-text-3)', fontSize: 14 }} onClick={() => copyText(`${detail.imei}-${board.board_id}`, '仓板ID')} />}
          size="small"
        >
          <div style={{ display: 'grid', gridTemplateColumns: 'repeat(3, 1fr)', gap: 12 }}>
            {board.compartments.map((comp) => {
              const st = STATUS_MAP[comp.status] || { label: '未知', color: 'gray' };
              const c = comp as any;
              return (
                <div key={comp.id} style={{ border: '1px solid var(--color-border)', borderRadius: 6, padding: '6px 8px', fontSize: 12 }}>
                  <div style={{ display: 'flex', justifyContent: 'space-between', alignItems: 'center', marginBottom: 3 }}>
                    <span style={{ fontWeight: 600, fontSize: 13, display: 'inline-flex', alignItems: 'center', gap: 3 }}>
                      {detail.imei}-{board.board_id}-{comp.channel_id}
                      <IconCopy style={{ cursor: 'pointer', color: 'var(--color-text-4)', fontSize: 12 }} onClick={(e) => { e.stopPropagation(); copyText(`${detail.imei}-${board.board_id}-${comp.channel_id}`, '通道号'); }} />
                    </span>
                    <Tag color={st.color} size="small">{st.label}</Tag>
                  </div>
                  <div style={{ color: 'var(--color-text-2)', fontSize: 12, display: 'flex', alignItems: 'center', gap: 6, flexWrap: 'nowrap', overflow: 'hidden' }}>
                    <span>{c.voltage ?? '-'}mV</span>
                    <span>{c.current ?? '-'}mA</span>
                    <span>{c.power ?? '-'}W</span>
                    {c.soc != null && <span style={{ color: '#2563eb', fontWeight: 600 }}>{c.soc}%</span>}
                    {c.battery_id && <span style={{ color: 'var(--color-text-3)', flexShrink: 1, overflow: 'hidden', textOverflow: 'ellipsis', whiteSpace: 'nowrap' }}>{c.battery_id}</span>}
                  </div>
                </div>
              );
            })}
          </div>
        </Card>
      ))}
    </div>
  );
}