import { Button, DatePicker, Form, Input, Popconfirm, Select, Space, Table, Tag, message } from 'antd';
import { useMutation, useQuery, useQueryClient } from '@tanstack/react-query';
import { useState } from 'react';
import { useSearchParams } from 'react-router-dom';
import dayjs from 'dayjs';
import { api } from '../api/client';
import { FormDrawer } from './FormDrawer';
import { PageHeader, unwrapList } from './ResourcePage';
import { ApplyBucketBar } from './ApplyBucketBar';

export const QUAL_BUCKET_META: Record<string, { color: string; text: string }> = {
  valid: { color: 'success', text: '有效' },
  expiring: { color: 'gold', text: '即将到期' },
  expired: { color: 'error', text: '已过期' },
};

export const BORROW_BUCKET_META: Record<string, { color: string; text: string }> = {
  borrowed: { color: 'blue', text: '外带中' },
  due: { color: 'gold', text: '应还' },
  overdue: { color: 'error', text: '未还逾期' },
  returned: { color: 'success', text: '已归还' },
};

export const SEAL_BUCKET_META: Record<string, { color: string; text: string }> = {
  pending: { color: 'processing', text: '待审批' },
  approved: { color: 'success', text: '已通过' },
  rejected: { color: 'error', text: '已驳回' },
  out: { color: 'blue', text: '外带中' },
  overdue: { color: 'error', text: '外带未还' },
  returned: { color: 'success', text: '已归还' },
};

export default function QualificationListPage() {
  const [params] = useSearchParams();
  const bucket = params.get('bucket') || '';
  const endpoint = bucket ? `/qualifications?bucket=${bucket}` : '/qualifications';
  const qc = useQueryClient();
  const [form] = Form.useForm();
  const [drawer, setDrawer] = useState<null | 'create' | { id: string }>(null);
  const q = useQuery({
    queryKey: [endpoint],
    queryFn: () => api.get(endpoint),
  });
  const { items } = unwrapList(q.data);
  const mut = useMutation({
    mutationFn: (body: Record<string, unknown>) => api.post('/qualifications', body),
    onSuccess: () => {
      message.success('已登记');
      qc.invalidateQueries();
    },
    onError: (e: Error) => message.error(e.message),
  });

  const openCreate = () => {
    form.resetFields();
    setDrawer('create');
  };

  return (
    <>
      <PageHeader
        title="资质台账"
        description="30 天内到期会标成即将到期，过期单独列出，方便投标当天核对。"
        extra={
          <ApplyBucketBar
            basePath="/seal/qualifications"
            buckets={[
              { value: 'valid', label: '有效' },
              { value: 'expiring', label: '即将到期' },
              { value: 'expired', label: '已过期' },
            ]}
            extra={
              <Button type="primary" onClick={openCreate}>
                登记
              </Button>
            }
          />
        }
      />
      <FormDrawer
        title={drawer === 'create' ? '登记资质' : '编辑资质'}
        open={Boolean(drawer)}
        onClose={() => setDrawer(null)}
        okText="提交保存"
        okLoading={mut.isPending}
        onOk={async () => {
          const v = await form.validateFields();
          const body = {
            ...v,
            expiresAt: v.expiresAt ? dayjs(v.expiresAt).format('YYYY-MM-DD') : undefined,
          };
          if (drawer === 'create') await mut.mutateAsync(body);
          else if (drawer && typeof drawer === 'object') {
            await api.patch(`/qualifications/${drawer.id}`, body);
            message.success('已保存');
            qc.invalidateQueries();
          }
          setDrawer(null);
        }}
      >
        <Form form={form} layout="vertical">
          <Form.Item name="name" label="资质名称" rules={[{ required: true }]}>
            <Input />
          </Form.Item>
          <Form.Item name="code" label="编码" rules={[{ required: true }]}>
            <Input />
          </Form.Item>
          <Form.Item name="keeper" label="保管人">
            <Input />
          </Form.Item>
          <Form.Item name="expiresAt" label="到期日">
            <DatePicker style={{ width: '100%' }} />
          </Form.Item>
        </Form>
      </FormDrawer>
      <Table
        className="ops-table"
        rowKey={(r) => String(r.id)}
        loading={q.isLoading}
        dataSource={items}
        scroll={{ x: 'max-content' }}
        tableLayout="fixed"
        columns={[
          { title: '资质', dataIndex: 'name', width: 220, ellipsis: true },
          { title: '编码', dataIndex: 'code', width: 140 },
          { title: '保管人', dataIndex: 'keeper', width: 100 },
          {
            title: '到期日',
            dataIndex: 'expiresAt',
            width: 120,
            render: (v: string) => (v ? dayjs(v).format('YYYY-MM-DD') : '—'),
          },
          {
            title: '创建时间',
            dataIndex: 'createdAt',
            width: 170,
            render: (v: string) => (v ? dayjs(v).format('YYYY-MM-DD HH:mm:ss') : '—'),
          },
          {
            title: '预警',
            dataIndex: 'bucket',
            width: 110,
            render: (v: string) => {
              const s = QUAL_BUCKET_META[v] || { color: 'default', text: v || '—' };
              return <Tag color={s.color}>{s.text}</Tag>;
            },
          },
          {
            title: '操作',
            width: 140,
            render: (_: unknown, r: Record<string, unknown>) => (
              <Space>
                <Button
                  type="link"
                  onClick={() => {
                    form.setFieldsValue({
                      name: r.name,
                      code: r.code,
                      keeper: r.keeper,
                      expiresAt: r.expiresAt ? dayjs(String(r.expiresAt)) : undefined,
                    });
                    setDrawer({ id: String(r.id) });
                  }}
                >
                  编辑
                </Button>
                <Popconfirm
                  title="确认删除这条资质？"
                  onConfirm={async () => {
                    await api.delete(`/qualifications/${r.id}`);
                    message.success('已删除');
                    qc.invalidateQueries();
                  }}
                >
                  <Button type="link" danger>
                    删除
                  </Button>
                </Popconfirm>
              </Space>
            ),
          },
        ]}
      />
    </>
  );
}

export function BorrowListPage() {
  const [params] = useSearchParams();
  const bucket = params.get('bucket') || '';
  const endpoint = bucket ? `/credential-borrows?bucket=${bucket}` : '/credential-borrows';
  const qc = useQueryClient();
  const [form] = Form.useForm();
  const [creating, setCreating] = useState(false);
  const q = useQuery({ queryKey: [endpoint], queryFn: () => api.get(endpoint) });
  const quals = useQuery({ queryKey: ['/qualifications'], queryFn: () => api.get('/qualifications') });
  const staff = useQuery({ queryKey: ['/staff'], queryFn: () => api.get('/staff') });
  const bids = useQuery({ queryKey: ['/bid-cases'], queryFn: () => api.get('/bid-cases') });
  const { items } = unwrapList(q.data);
  const createMut = useMutation({
    mutationFn: (body: Record<string, unknown>) => api.post('/credential-borrows', body),
    onSuccess: () => {
      message.success('已登记外带');
      qc.invalidateQueries();
    },
    onError: (e: Error) => message.error(e.message),
  });
  const retMut = useMutation({
    mutationFn: (id: string) => api.post(`/credential-borrows/${id}/return`),
    onSuccess: () => {
      message.success('已归还');
      qc.invalidateQueries();
    },
    onError: (e: Error) => message.error(e.message),
  });

  const openCreate = () => {
    form.resetFields();
    setCreating(true);
  };

  return (
    <>
      <PageHeader
        title="证照借用"
        description="外带必须登记预计归还。到期未还会在总览里预警。"
        extra={
          <ApplyBucketBar
            basePath="/seal/borrows"
            buckets={[
              { value: 'borrowed', label: '外带中' },
              { value: 'due', label: '应还' },
              { value: 'overdue', label: '逾期未还' },
              { value: 'returned', label: '已归还' },
            ]}
            extra={
              <Button type="primary" onClick={openCreate}>
                外带登记
              </Button>
            }
          />
        }
      />
      <FormDrawer
        title="登记证照外带"
        open={creating}
        onClose={() => setCreating(false)}
        okText="提交保存"
        okLoading={createMut.isPending}
        onOk={async () => {
          const v = await form.validateFields();
          await createMut.mutateAsync({ ...v, dueAt: v.dueAt ? dayjs(v.dueAt).format('YYYY-MM-DD') : undefined });
          setCreating(false);
        }}
      >
        <Form form={form} layout="vertical">
          <Form.Item name="itemName" label="证照 / 物品" rules={[{ required: true }]}>
            <Input />
          </Form.Item>
          <Form.Item name="qualificationId" label="关联资质">
            <Select
              allowClear
              showSearch
              optionFilterProp="label"
              options={((quals.data?.data?.items ?? []) as { id: string; name: string }[]).map((x) => ({
                value: x.id,
                label: x.name,
              }))}
            />
          </Form.Item>
          <Form.Item name="borrowerId" label="借用人" rules={[{ required: true }]}>
            <Select
              showSearch
              optionFilterProp="label"
              options={((staff.data?.data ?? []) as { id: string; name: string }[]).map((s) => ({
                value: s.id,
                label: s.name,
              }))}
            />
          </Form.Item>
          <Form.Item name="bidCaseId" label="关联投标">
            <Select
              allowClear
              showSearch
              optionFilterProp="label"
              options={((bids.data?.data?.items ?? []) as { id: string; bidNo: string; name: string }[]).map((b) => ({
                value: b.id,
                label: `${b.bidNo} ${b.name}`,
              }))}
            />
          </Form.Item>
          <Form.Item name="dueAt" label="预计归还" rules={[{ required: true }]}>
            <DatePicker style={{ width: '100%' }} />
          </Form.Item>
          <Form.Item name="remark" label="说明">
            <Input />
          </Form.Item>
        </Form>
      </FormDrawer>
      <Table
        rowKey={(r) => String(r.id)}
        loading={q.isLoading}
        dataSource={items}
        columns={[
          { title: '物品', dataIndex: 'itemName' },
          { title: '借用人', dataIndex: 'borrower', width: 110 },
          {
            title: '资质',
            width: 180,
            render: (_: unknown, row: Record<string, unknown>) =>
              (row.qualification as { name?: string } | null)?.name || '—',
          },
          {
            title: '应还',
            dataIndex: 'dueAt',
            width: 120,
            render: (v: string) => (v ? dayjs(v).format('YYYY-MM-DD') : '—'),
          },
          {
            title: '状态',
            dataIndex: 'bucket',
            width: 110,
            render: (v: string) => {
              const s = BORROW_BUCKET_META[v] || { color: 'default', text: v };
              return <Tag color={s.color}>{s.text}</Tag>;
            },
          },
          {
            title: '操作',
            width: 140,
            render: (_: unknown, row: Record<string, unknown>) => (
              <Space>
                {row.status !== 'RETURNED' ? (
                  <Button type="link" size="small" onClick={() => retMut.mutate(String(row.id))}>
                    归还
                  </Button>
                ) : null}
                <Popconfirm
                  title="确认删除这条借用记录？"
                  onConfirm={async () => {
                    await api.delete(`/credential-borrows/${row.id}`);
                    message.success('已删除');
                    qc.invalidateQueries();
                  }}
                >
                  <Button type="link" size="small" danger>
                    删除
                  </Button>
                </Popconfirm>
              </Space>
            ),
          },
        ]}
      />
    </>
  );
}