import { useEffect, useState } from 'react';
import {
  Button, Checkbox, Empty, Input, InputNumber, Modal, Popconfirm, Space, Switch,
  Table, Tag, Tooltip, Typography,
} from 'antd';
import type { TableProps } from 'antd';
import { DeleteOutlined, EditOutlined, PlusOutlined } from '@ant-design/icons';
import { huyaApi, type HuyaCollabShop } from '../api/modules';
import { message } from '../utils/antdMessage';
import { getErrorMessage } from '../utils/error';

const { Text } = Typography;

/**
 * 店铺管理：维护「新建协作单」下拉里的店铺。
 *
 * - 加 / 排序 / 备注 / 停用（停用=不再出现在新建下拉，历史订单照旧）；
 * - **重命名**会级联更新已有订单里的店铺名（弹窗里可取消勾选），
 *   否则筛选里会同时出现新旧两个名字；
 * - 删除只删字典行、不动订单（需要 `huya:collab:manage`）。
 */
export default function HuyaCollabShopModal({
  open,
  shops,
  canEdit,
  canManage,
  onClose,
  onChanged,
}: {
  open: boolean;
  shops: HuyaCollabShop[];
  canEdit: boolean;
  canManage: boolean;
  onClose: () => void;
  onChanged: () => void;
}) {
  const [newName, setNewName] = useState('');
  const [busy, setBusy] = useState(false);
  const [renameTarget, setRenameTarget] = useState<HuyaCollabShop | null>(null);
  const [renameValue, setRenameValue] = useState('');
  const [renameOrders, setRenameOrders] = useState(true);

  useEffect(() => {
    if (!open) {
      setNewName('');
      setRenameTarget(null);
    }
  }, [open]);

  const create = async () => {
    const name = newName.trim();
    if (!name) {
      message.warning('请先输入店铺名');
      return;
    }
    setBusy(true);
    try {
      await huyaApi.createCollabShop({ name });
      message.success(`已添加店铺「${name}」`);
      setNewName('');
      onChanged();
    } catch (e: unknown) {
      message.error(getErrorMessage(e));
    } finally {
      setBusy(false);
    }
  };

  const patch = async (shop: HuyaCollabShop, payload: { sort_order?: number; is_active?: boolean; remark?: string }) => {
    setBusy(true);
    try {
      await huyaApi.updateCollabShop(shop.id, payload);
      onChanged();
    } catch (e: unknown) {
      message.error(getErrorMessage(e));
      onChanged();
    } finally {
      setBusy(false);
    }
  };

  const submitRename = async () => {
    if (!renameTarget) return;
    const name = renameValue.trim();
    if (!name || name === renameTarget.name) {
      setRenameTarget(null);
      return;
    }
    setBusy(true);
    try {
      await huyaApi.updateCollabShop(renameTarget.id, { name, rename_orders: renameOrders });
      message.success(renameOrders ? `已重命名为「${name}」，已有订单里的旧名字也同步了` : `已重命名为「${name}」`);
      setRenameTarget(null);
      onChanged();
    } catch (e: unknown) {
      message.error(getErrorMessage(e));
    } finally {
      setBusy(false);
    }
  };

  const remove = async (shop: HuyaCollabShop) => {
    setBusy(true);
    try {
      await huyaApi.deleteCollabShop(shop.id);
      message.success(`已从字典删除「${shop.name}」`);
      onChanged();
    } catch (e: unknown) {
      message.error(getErrorMessage(e));
    } finally {
      setBusy(false);
    }
  };

  const columns: TableProps<HuyaCollabShop>['columns'] = [
    {
      title: '店铺名', dataIndex: 'name', width: 180,
      render: (value: string, row) => (
        <Space size={4}>
          <Text strong>{value}</Text>
          {!row.is_active && <Tag>已停用</Tag>}
          {canEdit && (
            <Tooltip title="重命名">
              <Button
                size="small"
                type="text"
                icon={<EditOutlined />}
                disabled={busy}
                onClick={() => {
                  setRenameTarget(row);
                  setRenameValue(row.name);
                  setRenameOrders(true);
                }}
              />
            </Tooltip>
          )}
        </Space>
      ),
    },
    {
      title: '排序', dataIndex: 'sort_order', width: 100,
      render: (value: number, row) => (
        <InputNumber
          size="small"
          value={value}
          disabled={!canEdit || busy}
          onChange={(next) => {
            if (next === null || next === value) return;
            void patch(row, { sort_order: Number(next) });
          }}
        />
      ),
    },
    {
      title: '新建时可选', dataIndex: 'is_active', width: 110, align: 'center',
      render: (value: boolean, row) => (
        <Switch
          size="small"
          checked={value}
          disabled={!canEdit || busy}
          checkedChildren="启用"
          unCheckedChildren="停用"
          onChange={(checked) => void patch(row, { is_active: checked })}
        />
      ),
    },
    {
      title: '备注', dataIndex: 'remark', width: 200,
      render: (value: string, row) => (
        <Input
          size="small"
          defaultValue={value}
          disabled={!canEdit || busy}
          placeholder="备注（失焦保存）"
          onBlur={(event) => {
            const next = event.target.value.trim();
            if (next !== value) void patch(row, { remark: next });
          }}
        />
      ),
    },
    {
      title: '最后改动', width: 150,
      render: (_, row) => (
        <Text type="secondary" style={{ fontSize: 12 }}>
          {row.updated_by_name || '-'}
          {row.updated_at ? ` · ${new Date(row.updated_at).toLocaleString()}` : ''}
        </Text>
      ),
    },
    {
      title: '操作', width: 90, align: 'center',
      render: (_, row) =>
        canManage ? (
          <Popconfirm
            title={`从字典删除「${row.name}」？`}
            description="只删字典行，已有订单里的店铺名不变"
            onConfirm={() => void remove(row)}
            disabled={busy}
          >
            <Button size="small" danger type="text" icon={<DeleteOutlined />} disabled={busy} />
          </Popconfirm>
        ) : (
          <Text type="secondary">-</Text>
        ),
    },
  ];

  return (
    <>
      <Modal
        title="店铺管理"
        open={open}
        onCancel={onClose}
        footer={<Button onClick={onClose}>关闭</Button>}
        width={860}
        destroyOnHidden
      >
        <Space direction="vertical" size={10} style={{ width: '100%' }}>
          <Text type="secondary">
            这里的店铺就是新建协作单时下拉里能点选的那些。停用只是不再出现在新建下拉里，
            历史订单不受影响；重命名可以选择是否同步已有订单。
          </Text>
          {canEdit && (
            <Space.Compact style={{ width: '100%' }}>
              <Input
                placeholder="输入店铺名，回车添加"
                value={newName}
                maxLength={64}
                onChange={(event) => setNewName(event.target.value)}
                onPressEnter={() => void create()}
              />
              <Button type="primary" icon={<PlusOutlined />} loading={busy} onClick={() => void create()}>
                添加
              </Button>
            </Space.Compact>
          )}
          <Table<HuyaCollabShop>
            rowKey="id"
            size="small"
            columns={columns}
            dataSource={shops}
            pagination={false}
            scroll={{ y: 320 }}
            locale={{
              emptyText: <Empty image={Empty.PRESENTED_IMAGE_SIMPLE} description="还没有店铺，先加一个" />,
            }}
          />
        </Space>
      </Modal>

      <Modal
        title={renameTarget ? `重命名「${renameTarget.name}」` : '重命名店铺'}
        open={!!renameTarget}
        onCancel={() => setRenameTarget(null)}
        onOk={() => void submitRename()}
        confirmLoading={busy}
        okText="保存"
        destroyOnHidden
      >
        <Space direction="vertical" size={10} style={{ width: '100%' }}>
          <Input
            value={renameValue}
            maxLength={64}
            autoFocus
            onChange={(event) => setRenameValue(event.target.value)}
            onPressEnter={() => void submitRename()}
          />
          <Checkbox checked={renameOrders} onChange={(event) => setRenameOrders(event.target.checked)}>
            同时更新已有订单里的店铺名（不勾选的话，筛选里会同时出现新旧两个名字）
          </Checkbox>
        </Space>
      </Modal>
    </>
  );
}