import { useEffect, useState } from "react";
import { Button, Form, Table, message } from "antd";
import ControlWrapper from "@cqsjjb/jjb-react-admin-component/ControlWrapper";
import SearchForm from "~/components/SearchForm";
import TableAction from "@cqsjjb/jjb-react-admin-component/TableAction";
import { Connect } from "@cqsjjb/jjb-dva-runtime";
import { NS_COURSEWARE } from "~/enumerate/namespace";

/** 视频累计时长（小时）→ “X分钟Y秒” */
const formatVideoDuration = (hours) => {
  if (hours == null) return "-";
  const totalSeconds = Math.round(hours * 3600);
  return `${Math.floor(totalSeconds / 60)}分钟${totalSeconds % 60}秒`;
};

/** 班级详情 — 课程 Tab：班级课程查询 */
function ClassCourseTab(props) {
  const { classId } = props;
  const [searchForm] = Form.useForm();
  const [query, setQuery] = useState({ current: 1, size: 10 });
  const {
    classCourseList: dataSource,
    classCourseTotal: total,
    classCourseLoading: loading,
  } = props.courseware || {};

  const handleSearch = (params = query) => {
    props.classCoursePage({ ...params, classId });
  };

  useEffect(() => {
    if (!classId) return;
    handleSearch(query);
  }, [classId]);

  const columns = [
    {
      title: "序号",
      width: 70,
      fixed: "left",
      render: (_, __, index) => (query.current - 1) * query.size + index + 1,
    },
    {
      title: "课程名称",
      dataIndex: "courseName",
      width: 320,
      ellipsis: true,
      render: (v) => v || "-",
    },
    {
      title: "要求完成总学时",
      dataIndex: "requiredTotalHours",
      width: 130,
      render: (v) => (v == null ? "-" : v),
    },
    {
      title: "视频累计时长",
      dataIndex: "videoDuration",
      width: 130,
      render: (v) => formatVideoDuration(v),
    },
    {
      title: "上课学员数",
      dataIndex: "studentCount",
      width: 110,
      render: (v) => (v == null ? "-" : v),
    },
    {
      title: "已完成学员数",
      dataIndex: "completedCount",
      width: 120,
      render: (v) => (v == null ? "-" : v),
    },
    {
      title: "操作",
      width: 140,
      fixed: "right",
      render: () => (
        <TableAction>
          <Button
            type="link"
            size="small"
            onClick={() => message.info("课程查看功能待接入")}
          >
            查看
          </Button>
          <Button
            danger
            type="link"
            size="small"
            onClick={() => message.info("删除课程接口待接入")}
          >
            删除
          </Button>
        </TableAction>
      ),
    },
  ];

  return (
    <>
      <SearchForm
        style={{ marginBottom: 16 }}
        form={searchForm}
        loading={loading}
        formLine={[
          <Form.Item key="courseName" name="courseName">
            <ControlWrapper.Input
              label="课程名称"
              placeholder="请输入"
              allowClear
              maxLength={50}
            />
          </Form.Item>,
        ]}
        onReset={(value) => {
          const next = { ...value, current: 1, size: 10 };
          setQuery(next);
          handleSearch(next);
        }}
        onFinish={(value) => {
          const next = { ...value, current: 1, size: 10 };
          setQuery(next);
          handleSearch(next);
        }}
      />

      <Button
        type="primary"
        style={{ marginBottom: 12 }}
        onClick={() => message.info("选择课程功能待接入")}
      >
        选择课程
      </Button>

      <Table
        rowKey="id"
        columns={columns}
        dataSource={Array.isArray(dataSource) ? dataSource : []}
        scroll={{ x: 1000 }}
        loading={loading}
        pagination={{
          total,
          showSizeChanger: true,
          showQuickJumper: true,
          showTotal: (t) => `共 ${t} 条`,
          current: query.current,
          pageSize: query.size,
          onChange: (page, pageSize) => {
            const next = { ...query, current: page, size: pageSize };
            setQuery(next);
            handleSearch(next);
          },
        }}
      />
    </>
  );
}

export default Connect([NS_COURSEWARE], true)(ClassCourseTab);