import React, { useEffect, useRef, useState } from 'react';
import { Button, Form, Input, Modal, QRCode, Select, Tag, Typography, message } from 'antd';
import { PlusOutlined } from '@ant-design/icons';
import type { ActionType, ProColumns } from '@ant-design/pro-components';
import { ProTable } from '@ant-design/pro-components';
import { getDictValueEnum } from '@/services/system/dict';
import { normalizePublicUrl } from '@/utils/publicUrl';
import {
  getParticipatingCompanyQrCode,
  getParticipatingCompanies,
  getParticipatingJobDetail,
  getParticipatingJobs,
  removeJobFromCompany,
  removeParticipatingCompany,
  reviewParticipatingCompany,
  reviewParticipatingJob,
} from '@/services/jobportal/outdoorFairDetail';
import CompanyAddModal from './CompanyAddModal';
import JobEditModal from './JobEditModal';

interface Props {
  fairId: number;
}

type ReviewTarget =
  | {
      type: 'company';
      record: API.OutdoorFairDetail.ParticipatingCompany;
    }
  | {
      type: 'job';
      record: API.OutdoorFairDetail.PostedJob;
    };

const REVIEW_STATUS_ENUM = {
  '0': { text: '待审核', status: 'Processing' },
  '1': { text: '已通过', status: 'Success' },
  '2': { text: '已驳回', status: 'Error' },
};

const formatSearchDateTime = (value: any) =>
  value && typeof value.format === 'function' ? value.format('YYYY-MM-DD HH:mm:ss') : value;

const ParticipatingCompaniesTab: React.FC<Props> = ({ fairId }) => {
  const companyActionRef = useRef<ActionType>();
  const jobActionRef = useRef<ActionType>();
  const [reviewForm] = Form.useForm();
  const [companyModalOpen, setCompanyModalOpen] = useState(false);
  const [jobListModalOpen, setJobListModalOpen] = useState(false);
  const [jobEditModalOpen, setJobEditModalOpen] = useState(false);
  const [selectedCompany, setSelectedCompany] =
    useState<API.OutdoorFairDetail.ParticipatingCompany | null>(null);
  const [qrModalOpen, setQrModalOpen] = useState(false);
  const [qrInfo, setQrInfo] = useState<API.OutdoorFairDetail.CompanyQrCodeInfo | null>(null);
  const [qrCompanyName, setQrCompanyName] = useState('');
  const [editingJob, setEditingJob] = useState<API.OutdoorFairDetail.PostedJob | null>(null);
  const [educationEnum, setEducationEnum] = useState<any>({});
  const [experienceEnum, setExperienceEnum] = useState<any>({});
  const [areaEnum, setAreaEnum] = useState<any>({});
  const [jobTypeEnum, setJobTypeEnum] = useState<any>({});
  const [scaleEnum, setScaleEnum] = useState<any>({});
  const [reviewModalOpen, setReviewModalOpen] = useState(false);
  const [reviewTarget, setReviewTarget] = useState<ReviewTarget | null>(null);

  const renderReviewStatus = (status?: string) => {
    const map: Record<string, { color: string; text: string }> = {
      '0': { color: 'processing', text: '待审核' },
      '1': { color: 'success', text: '已通过' },
      '2': { color: 'error', text: '已驳回' },
    };
    const item = map[status || '1'] || map['1'];
    return <Tag color={item.color}>{item.text}</Tag>;
  };

  useEffect(() => {
    Promise.all([
      getDictValueEnum('education', true, true),
      getDictValueEnum('experience', true, true),
      getDictValueEnum('area', true, true),
      getDictValueEnum('job_type', true, true),
      getDictValueEnum('scale', true, true),
    ]).then(([education, experience, area, jobType, scale]) => {
      setEducationEnum(education);
      setExperienceEnum(experience);
      setAreaEnum(area);
      setJobTypeEnum(jobType);
      setScaleEnum(scale);
    });
  }, []);

  const openJobEditor = async (job?: API.OutdoorFairDetail.PostedJob) => {
    if (job?.jobId) {
      const res = await getParticipatingJobDetail(fairId, job.jobId);
      if (res.code !== 200) {
        message.error(res.msg || '岗位详情加载失败');
        return;
      }
      setEditingJob(res.data);
    } else {
      setEditingJob(null);
    }
    setJobEditModalOpen(true);
  };

  const openQrCodeModal = async (record: API.OutdoorFairDetail.ParticipatingCompany) => {
    const res = await getParticipatingCompanyQrCode(fairId, record.companyId);
    if (res.code !== 200) {
      message.error(res.msg || '二维码内容获取失败');
      return;
    }
    setQrInfo({
      ...res.data,
      h5Url: normalizePublicUrl(res.data.h5Url) || res.data.h5Url,
      qrCodeContent: normalizePublicUrl(res.data.qrCodeContent) || res.data.qrCodeContent,
    });
    setQrCompanyName(record.companyName);
    setQrModalOpen(true);
  };

  const openReviewModal = (target: ReviewTarget) => {
    setReviewTarget(target);
    reviewForm.setFieldsValue({
      reviewStatus:
        target.type === 'company'
          ? target.record.reviewStatus || '0'
          : target.record.fairReviewStatus || '0',
      reviewRemark:
        target.type === 'company'
          ? target.record.reviewRemark || ''
          : target.record.fairReviewRemark || '',
    });
    setReviewModalOpen(true);
  };

  const submitReview = async () => {
    const values = await reviewForm.validateFields();
    if (!reviewTarget) return;
    const payload = {
      reviewStatus: values.reviewStatus as '0' | '1' | '2',
      reviewRemark: values.reviewRemark,
    };
    const res =
      reviewTarget.type === 'company'
        ? await reviewParticipatingCompany({
            fairId,
            id: reviewTarget.record.id,
            ...payload,
          })
        : await reviewParticipatingJob({
            fairId,
            jobId: reviewTarget.record.jobId!,
            ...payload,
          });
    if (res.code === 200) {
      message.success('审核成功');
      setReviewModalOpen(false);
      setReviewTarget(null);
      reviewForm.resetFields();
      if (reviewTarget.type === 'company') {
        companyActionRef.current?.reload();
      } else {
        jobActionRef.current?.reload();
        companyActionRef.current?.reload();
      }
    } else {
      message.error(res.msg || '审核失败');
    }
  };

  const jobColumns: ProColumns<API.OutdoorFairDetail.PostedJob>[] = [
    { title: '岗位名称', dataIndex: 'jobTitle', ellipsis: true },
    {
      title: '薪资范围',
      hideInSearch: true,
      render: (_, record) => `${record.minSalary}-${record.maxSalary} 元/月`,
    },
    {
      title: '学历要求',
      dataIndex: 'education',
      valueType: 'select',
      valueEnum: educationEnum,
      width: 110,
    },
    {
      title: '工作经验',
      dataIndex: 'experience',
      valueType: 'select',
      valueEnum: experienceEnum,
      width: 110,
    },
    { title: '招聘人数', dataIndex: 'vacancies', hideInSearch: true, width: 90 },
    {
      title: '审核状态',
      dataIndex: 'fairReviewStatus',
      hideInSearch: true,
      width: 100,
      render: (_, record) => renderReviewStatus(record.fairReviewStatus),
    },
    {
      title: '发布状态',
      dataIndex: 'isPublish',
      hideInSearch: true,
      width: 90,
      render: (_, record) => (
        <Tag color={record.isPublish === 1 ? 'green' : 'red'}>
          {record.isPublish === 1 ? '已发布' : '未发布'}
        </Tag>
      ),
    },
    {
      title: '操作',
      valueType: 'option',
      width: 240,
      render: (_, record) => [
        <Button key="edit" type="link" size="small" onClick={() => openJobEditor(record)}>
          编辑
        </Button>,
        <Button
          key="review"
          type="link"
          size="small"
          onClick={() => openReviewModal({ type: 'job', record })}
        >
          审核
        </Button>,
        <Button
          key="delete"
          type="link"
          size="small"
          danger
          onClick={() =>
            Modal.confirm({
              title: '确认删除',
              content: `确定删除岗位「${record.jobTitle}」吗？`,
              onOk: async () => {
                const res = await removeJobFromCompany(fairId, record.jobId!);
                if (res.code === 200) {
                  message.success('删除成功');
                  jobActionRef.current?.reload();
                  companyActionRef.current?.reload();
                }
              },
            })
          }
        >
          删除
        </Button>,
      ],
    },
  ];

  return (
    <>
      <ProTable<API.OutdoorFairDetail.ParticipatingCompany>
        actionRef={companyActionRef}
        rowKey="id"
        headerTitle="参会企业"
        search={{ labelWidth: 'auto' }}
        options={false}
        pagination={{ pageSize: 10 }}
        toolBarRender={() => [
          <Button
            key="add"
            type="primary"
            icon={<PlusOutlined />}
            onClick={() => setCompanyModalOpen(true)}
          >
            添加企业
          </Button>,
        ]}
        request={async (params) => {
          const res = await getParticipatingCompanies(fairId, {
            current: params.current,
            pageSize: params.pageSize,
            companyName: params.companyName,
            reviewStatus: params.reviewStatus,
            startTime: formatSearchDateTime(params.startTime),
            endTime: formatSearchDateTime(params.endTime),
          });
          return { data: res.rows || [], total: res.total || 0, success: res.code === 200 };
        }}
        columns={[
          {
            title: '企业名称',
            dataIndex: 'companyName',
            ellipsis: true,
            fieldProps: {
              id: 'outdoor-participating-company-name-search',
              name: 'companyName',
              'aria-label': '企业名称',
              autoComplete: 'off',
            },
          },
          {
            title: '报名开始时间',
            dataIndex: 'startTime',
            hideInTable: true,
            valueType: 'dateTime',
            fieldProps: {
              id: 'outdoor-participating-company-start-time-search',
              name: 'startTime',
              'aria-label': '报名开始时间',
              format: 'YYYY-MM-DD HH:mm:ss',
            },
            search: {
              transform: (value) => ({ startTime: formatSearchDateTime(value) }),
            },
          },
          {
            title: '报名结束时间',
            dataIndex: 'endTime',
            hideInTable: true,
            valueType: 'dateTime',
            fieldProps: {
              id: 'outdoor-participating-company-end-time-search',
              name: 'endTime',
              'aria-label': '报名结束时间',
              format: 'YYYY-MM-DD HH:mm:ss',
            },
            search: {
              transform: (value) => ({ endTime: formatSearchDateTime(value) }),
            },
          },
          {
            title: '行业',
            dataIndex: 'industry',
            hideInSearch: true,
            render: (_, record) => {
              const v = record.industry;
              if (!v) return '--';
              // 行业分类 id 均为 6 位编号，纯数字裸码（如 4、6）无对应分类项，兜底为“其他”
              if (/^\d+$/.test(String(v))) return <Tag>其他</Tag>;
              return <Tag>{v}</Tag>;
            },
          },
          {
            title: '规模',
            dataIndex: 'scale',
            hideInSearch: true,
            render: (_, record) => {
              const v = record.scale;
              if (v === undefined || v === null || v === '') return '其他';
              // 规模为字典码，渲染为标签；匹配不到时兜底“其他”，不显示裸数字
              const label = scaleEnum[v]?.label || scaleEnum[v]?.text;
              return label ? <Tag>{label}</Tag> : '其他';
            },
          },
          { title: '联系人', dataIndex: 'contactPerson', hideInSearch: true },
          { title: '联系电话', dataIndex: 'contactPhone', hideInSearch: true },
          {
            title: '审核状态',
            dataIndex: 'reviewStatus',
            valueType: 'select',
            valueEnum: REVIEW_STATUS_ENUM,
            fieldProps: {
              id: 'outdoor-participating-company-review-status-search',
              name: 'reviewStatus',
              'aria-label': '审核状态',
            },
            render: (_, record) => renderReviewStatus(record.reviewStatus),
          },
          {
            title: '报名时间',
            dataIndex: 'registrationTime',
            valueType: 'dateTime',
            hideInSearch: true,
            width: 170,
          },
          {
            title: '展位号',
            dataIndex: 'boothNumber',
            hideInSearch: true,
            render: (_, record) => record.boothNumber || '--',
          },
          { title: '岗位数', dataIndex: 'jobCount', hideInSearch: true, width: 80 },
          {
            title: '操作',
            valueType: 'option',
            width: 460,
            render: (_, record) => [
              <Button
                key="jobs"
                type="link"
                size="small"
                onClick={() => {
                  setSelectedCompany(record);
                  setJobListModalOpen(true);
                }}
              >
                查看岗位
              </Button>,
              <Button
                key="addJob"
                type="link"
                size="small"
                onClick={() => {
                  setSelectedCompany(record);
                  openJobEditor();
                }}
              >
                添加岗位
              </Button>,
              <Button key="qrcode" type="link" size="small" onClick={() => openQrCodeModal(record)}>
                查看二维码
              </Button>,
              <Button
                key="review"
                type="link"
                size="small"
                onClick={() => openReviewModal({ type: 'company', record })}
              >
                审核
              </Button>,
              <Button
                key="remove"
                type="link"
                size="small"
                danger
                onClick={() =>
                  Modal.confirm({
                    title: '确认移除',
                    content: `确定移除「${record.companyName}」吗？`,
                    onOk: async () => {
                      const res = await removeParticipatingCompany(record.id, fairId);
                      if (res.code === 200) {
                        message.success('移除成功');
                        companyActionRef.current?.reload();
                      }
                    },
                  })
                }
              >
                移除
              </Button>,
            ],
          },
        ]}
      />

      <Modal
        title={selectedCompany ? `${selectedCompany.companyName} — 发布岗位` : '企业岗位'}
        open={jobListModalOpen}
        width={1100}
        footer={null}
        destroyOnClose
        onCancel={() => setJobListModalOpen(false)}
      >
        {selectedCompany && (
          <ProTable<API.OutdoorFairDetail.PostedJob>
            actionRef={jobActionRef}
            rowKey="jobId"
            search={{ labelWidth: 'auto' }}
            options={false}
            pagination={{ pageSize: 10 }}
            toolBarRender={() => [
              <Button
                key="add"
                type="primary"
                icon={<PlusOutlined />}
                onClick={() => openJobEditor()}
              >
                添加岗位
              </Button>,
            ]}
            request={async (params) => {
              const res = await getParticipatingJobs(fairId, {
                companyId: selectedCompany.companyId,
                current: params.current,
                pageSize: params.pageSize,
                jobTitle: params.jobTitle,
                education: params.education,
                experience: params.experience,
              });
              return { data: res.rows || [], total: res.total || 0, success: res.code === 200 };
            }}
            columns={jobColumns}
          />
        )}
      </Modal>

      <Modal
        title={qrCompanyName ? `${qrCompanyName} — 企业二维码` : '企业二维码'}
        open={qrModalOpen}
        width={420}
        footer={[
          <Button
            key="open"
            type="primary"
            onClick={() => qrInfo?.h5Url && window.open(qrInfo.h5Url)}
          >
            打开链接
          </Button>,
        ]}
        destroyOnClose
        onCancel={() => {
          setQrModalOpen(false);
          setQrInfo(null);
          setQrCompanyName('');
        }}
      >
        {qrInfo?.qrCodeContent && (
          <div style={{ display: 'flex', flexDirection: 'column', alignItems: 'center', gap: 16 }}>
            <QRCode value={qrInfo.qrCodeContent} size={220} />
            <Typography.Paragraph
              copyable={{ text: qrInfo.qrCodeContent }}
              style={{
                width: '100%',
                marginBottom: 0,
                wordBreak: 'break-all',
                textAlign: 'center',
              }}
            >
              {qrInfo.qrCodeContent}
            </Typography.Paragraph>
            {!qrInfo.deviceCode && (
              <Typography.Text type="secondary">
                当前企业未绑定设备码，二维码使用企业公共页链接。
              </Typography.Text>
            )}
          </div>
        )}
      </Modal>

      <Modal
        title={
          reviewTarget?.type === 'company'
            ? `审核报名 — ${reviewTarget.record.companyName}`
            : `审核岗位 — ${reviewTarget?.record.jobTitle || ''}`
        }
        open={reviewModalOpen}
        destroyOnClose
        onCancel={() => {
          setReviewModalOpen(false);
          setReviewTarget(null);
          reviewForm.resetFields();
        }}
        onOk={submitReview}
      >
        <Form form={reviewForm} layout="vertical">
          <Form.Item
            name="reviewStatus"
            label="审核状态"
            rules={[{ required: true, message: '请选择审核状态' }]}
          >
            <Select
              options={[
                { label: '待审核', value: '0' },
                { label: '已通过', value: '1' },
                { label: '已驳回', value: '2' },
              ]}
            />
          </Form.Item>
          <Form.Item noStyle shouldUpdate={(prev, cur) => prev.reviewStatus !== cur.reviewStatus}>
            {({ getFieldValue }) => (
              <Form.Item
                name="reviewRemark"
                label="审核原因"
                rules={[
                  {
                    required: getFieldValue('reviewStatus') === '2',
                    message: '驳回时请填写原因',
                  },
                ]}
              >
                <Input.TextArea rows={4} placeholder="驳回时请输入原因" maxLength={500} showCount />
              </Form.Item>
            )}
          </Form.Item>
        </Form>
      </Modal>

      <CompanyAddModal
        open={companyModalOpen}
        fairId={fairId}
        onCancel={() => setCompanyModalOpen(false)}
        onSuccess={() => {
          setCompanyModalOpen(false);
          companyActionRef.current?.reload();
        }}
      />

      <JobEditModal
        open={jobEditModalOpen}
        fairId={fairId}
        company={selectedCompany}
        job={editingJob}
        educationEnum={educationEnum}
        experienceEnum={experienceEnum}
        areaEnum={areaEnum}
        jobTypeEnum={jobTypeEnum}
        onCancel={() => {
          setJobEditModalOpen(false);
          setEditingJob(null);
        }}
        onSuccess={() => {
          setJobEditModalOpen(false);
          setEditingJob(null);
          jobActionRef.current?.reload();
          companyActionRef.current?.reload();
        }}
      />
    </>
  );
};

export default ParticipatingCompaniesTab;