import React, { useState } from 'react';
import { Space, Button, Segmented, Badge, message, Modal, Table, Tag } from 'antd';
import { apiPost, getExportUrl } from '../api/client';
import type { SaveChangeDto, BomItemDto, MatchMaterialRequest, MatchMaterialResponse, MatchMaterialResultDto } from '../api/types';

interface ToolBarProps {
  dirtyCount: number;
  viewMode: 'hierarchical' | 'flat';
  onViewModeChange: (mode: 'hierarchical' | 'flat') => void;
  onRefresh: () => void;
  onOpenConfig: () => void;
  getDirtyChanges: () => SaveChangeDto[];
  onSaveSuccess: (changes: SaveChangeDto[]) => void;
  items: BomItemDto[];
}

export const ToolBar: React.FC<ToolBarProps> = ({
  dirtyCount,
  viewMode,
  onViewModeChange,
  onRefresh,
  onOpenConfig,
  getDirtyChanges,
  onSaveSuccess,
  items,
}) => {
  const [saving, setSaving] = useState(false);
  const [matching, setMatching] = useState(false);
  const [matchResults, setMatchResults] = useState<MatchMaterialResultDto[]>([]);
  const [matchModalVisible, setMatchModalVisible] = useState(false);
  const [matchSaving, setMatchSaving] = useState(false);

  const handleSave = async () => {
    if (dirtyCount === 0) return;
    setSaving(true);
    try {
      const changes = getDirtyChanges();
      const res = await apiPost<any>('/api/bom/save', { Changes: changes });
      if (res.Success) {
        message.success(`保存成功，共更新 ${res.SavedCount} 项`);
        onSaveSuccess(changes);
      } else {
        message.error(`保存失败: ${res.Error}`);
      }
    } catch (e: any) {
      message.error(`保存失败: ${e.message}`);
    } finally {
      setSaving(false);
    }
  };

  const handleExport = () => {
    window.open(getExportUrl(viewMode === 'flat'), '_blank');
  };

  const handleMatchMaterial = async () => {
    const emptyItems = items.filter(
      (item) => !item.IsAssembly && !item.Props?.['物料编码']
    );

    if (emptyItems.length === 0) {
      message.info('所有零件的物料编码均已填写');
      return;
    }

    setMatching(true);
    try {
      const request: MatchMaterialRequest = {
        Items: emptyItems.map((item) => ({
          DrawingNo: item.DrawingNo,
          DocPath: item.DocPath,
        })),
      };

      const res = await apiPost<MatchMaterialResponse>('/api/bom/match-material', request);
      if (!res.Success) {
        message.error(`匹配失败: ${res.Error}`);
        return;
      }

      const matched = res.Results.filter((r) => r.Matched);
      if (matched.length === 0) {
        message.info('未找到匹配的物料编码');
        return;
      }

      setMatchResults(matched);
      setMatchModalVisible(true);
    } catch (e: any) {
      message.error(`匹配失败: ${e.message}`);
    } finally {
      setMatching(false);
    }
  };

  const handleConfirmMatch = async () => {
    setMatchSaving(true);
    try {
      const changes: SaveChangeDto[] = matchResults.map((r) => ({
        DocPath: r.DocPath,
        Key: '物料编码',
        Value: r.PartCode,
      }));

      const res = await apiPost<any>('/api/bom/save', { Changes: changes });
      if (res.Success) {
        message.success(`写入成功，共更新 ${res.Results?.length ?? changes.length} 项物料编码`);
        onSaveSuccess(changes);
        setMatchModalVisible(false);
        setMatchResults([]);
      } else {
        message.error(`写入失败: ${res.Error}`);
      }
    } catch (e: any) {
      message.error(`写入失败: ${e.message}`);
    } finally {
      setMatchSaving(false);
    }
  };

  const matchColumns = [
    {
      title: '图号',
      dataIndex: 'DrawingNo',
      key: 'DrawingNo',
      width: 260,
    },
    {
      title: '物料编码',
      dataIndex: 'PartCode',
      key: 'PartCode',
      width: 180,
    },
    {
      title: 'PLM零件名称',
      dataIndex: 'PartName',
      key: 'PartName',
      width: 180,
    },
    {
      title: '状态',
      key: 'status',
      width: 80,
      render: (_: unknown, record: MatchMaterialResultDto) =>
        record.Matched ? <Tag color="green">已匹配</Tag> : <Tag color="red">未匹配</Tag>,
    },
  ];

  return (
    <>
      <Space style={{ marginBottom: 16, display: 'flex', justifyContent: 'space-between', width: '100%' }}>
        <Space>
          <Badge count={dirtyCount}>
            <Button type="primary" onClick={handleSave} disabled={dirtyCount === 0} loading={saving}>
              保存
            </Button>
          </Badge>
          <Button onClick={handleExport}>导出</Button>
          <Button onClick={onRefresh}>刷新</Button>
          <Button onClick={onOpenConfig}>列配置</Button>
          <Button onClick={handleMatchMaterial} loading={matching}>
            匹配物料编号
          </Button>
        </Space>
        <Space>
          <Segmented
            options={[
              { label: '层级视图', value: 'hierarchical' },
              { label: '扁平视图', value: 'flat' },
            ]}
            value={viewMode}
            onChange={(val) => onViewModeChange(val as 'hierarchical' | 'flat')}
          />
          <div style={{ marginLeft: 16, color: '#52c41a' }}>● 已连接</div>
        </Space>
      </Space>

      <Modal
        title={`匹配物料编号 (${matchResults.length} 项匹配)`}
        open={matchModalVisible}
        onOk={handleConfirmMatch}
        onCancel={() => {
          setMatchModalVisible(false);
          setMatchResults([]);
        }}
        okText="确认写入"
        cancelText="取消"
        confirmLoading={matchSaving}
        width={760}
      >
        <p style={{ marginBottom: 12, color: '#666' }}>
          以下零件已匹配到物料编码，确认后将写入SolidWorks文件属性。
        </p>
        <Table
          dataSource={matchResults}
          columns={matchColumns}
          rowKey="DocPath"
          size="small"
          pagination={false}
          scroll={{ y: 400 }}
        />
      </Modal>
    </>
  );
};