import { useState } from 'react';
import { Table, Input, Button, Tag, Space } from 'antd';
import type { ColumnsType } from 'antd/es/table';
import { CloseOutlined, FullscreenOutlined, FullscreenExitOutlined } from '@ant-design/icons';
import { useSchemaStore } from '../../store/schemaStore.ts';
import { STATUS_COLORS, STATUS_LABELS } from '../../constants/statusColors.ts';
import { mockData } from '../../mock/schemaData.ts';
import type { EntityStatus, Line } from '../../types/index.ts';

const { Search } = Input;

interface ConnectionRow {
  key: string;
  lineName: string;
  lineStatus: EntityStatus;
  deviceAName: string;
  portAName: string;
  deviceZName: string;
  portZName: string;
}

export function ConnectionsPanel() {
  const visible = useSchemaStore((s) => s.connectionsPanelVisible);
  const setVisible = useSchemaStore((s) => s.setConnectionsPanelVisible);
  const panelData = useSchemaStore((s) => s.connectionsPanelData);
  const [searchValue, setSearchValue] = useState('');
  const [expanded, setExpanded] = useState(false);

  if (!visible || !panelData) return null;

  // Build rows from panel data
  const rows: ConnectionRow[] = [];

  if (panelData.line) {
    // Single line mode
    const line = panelData.line as Line;
    const portA = panelData.portA as { name: string } | null;
    const portZ = panelData.portZ as { name: string } | null;
    const devA = panelData.deviceA as { name: string } | null;
    const devZ = panelData.deviceZ as { name: string } | null;
    rows.push({
      key: line.id,
      lineName: line.name,
      lineStatus: line.status,
      deviceAName: devA?.name ?? '—',
      portAName: portA?.name ?? '—',
      deviceZName: devZ?.name ?? '—',
      portZName: portZ?.name ?? '—',
    });
  } else if (panelData.lines) {
    // Multiple lines mode
    const lines = panelData.lines as Line[];
    for (const line of lines) {
      const portA = mockData.ports.find((p) => p.id === line.portAId);
      const portZ = mockData.ports.find((p) => p.id === line.portZId);
      const devA = portA ? mockData.devices.find((d) => d.id === portA.deviceId) : null;
      const devZ = portZ ? mockData.devices.find((d) => d.id === portZ.deviceId) : null;
      rows.push({
        key: line.id,
        lineName: line.name,
        lineStatus: line.status,
        deviceAName: devA?.name ?? '—',
        portAName: portA?.name ?? '—',
        deviceZName: devZ?.name ?? '—',
        portZName: portZ?.name ?? '—',
      });
    }
  }

  const filtered = searchValue
    ? rows.filter(
        (r) =>
          r.lineName.toLowerCase().includes(searchValue.toLowerCase()) ||
          r.deviceAName.toLowerCase().includes(searchValue.toLowerCase()) ||
          r.deviceZName.toLowerCase().includes(searchValue.toLowerCase()),
      )
    : rows;

  const columns: ColumnsType<ConnectionRow> = [
    {
      title: 'Линия',
      dataIndex: 'lineName',
      key: 'lineName',
      render: (name: string, record: ConnectionRow) => {
        const colors = STATUS_COLORS[record.lineStatus];
        return (
          <Space size={4}>
            <Tag color={colors.border} style={{ color: colors.text, fontSize: 10 }}>
              {STATUS_LABELS[record.lineStatus]}
            </Tag>
            <span>{name}</span>
          </Space>
        );
      },
    },
    {
      title: 'Устройство A',
      key: 'deviceA',
      render: (_: unknown, record: ConnectionRow) => (
        <span>
          {record.deviceAName} ({record.portAName})
        </span>
      ),
    },
    {
      title: 'Устройство Z',
      key: 'deviceZ',
      render: (_: unknown, record: ConnectionRow) => (
        <span>
          {record.deviceZName} ({record.portZName})
        </span>
      ),
    },
  ];

  return (
    <div
      style={{
        height: expanded ? '60%' : '30%',
        minHeight: 150,
        borderTop: '1px solid #f0f0f0',
        background: '#fff',
        display: 'flex',
        flexDirection: 'column',
        flexShrink: 0,
      }}
    >
      <div
        style={{
          display: 'flex',
          alignItems: 'center',
          justifyContent: 'space-between',
          padding: '6px 12px',
          borderBottom: '1px solid #f0f0f0',
        }}
      >
        <span style={{ fontWeight: 600, fontSize: 13 }}>Соединения</span>
        <Space size={4}>
          <Search
            placeholder="Поиск..."
            size="small"
            style={{ width: 180 }}
            value={searchValue}
            onChange={(e) => setSearchValue(e.target.value)}
            allowClear
          />
          <Button
            size="small"
            icon={expanded ? <FullscreenExitOutlined /> : <FullscreenOutlined />}
            onClick={() => setExpanded(!expanded)}
          />
          <Button
            size="small"
            icon={<CloseOutlined />}
            onClick={() => setVisible(false)}
          />
        </Space>
      </div>
      <div style={{ flex: 1, overflow: 'auto' }}>
        <Table
          dataSource={filtered}
          columns={columns}
          size="small"
          pagination={false}
          style={{ fontSize: 11 }}
        />
      </div>
    </div>
  );
}