<template>
  <div class="schedule-view">
    <div class="page-header">
      <h2>课程排期</h2>
      <a-space>
        <a-dropdown>
          <a-button>
            <template #icon><PlusOutlined /></template>
            新建排课
            <DownOutlined />
          </a-button>
          <template #overlay>
            <a-menu @click="handleCreateMenuClick">
              <a-menu-item key="single">
                <PlusOutlined /> 单个新建
              </a-menu-item>
              <a-menu-item key="batch">
                <AppstoreAddOutlined /> 批量新建
              </a-menu-item>
              <a-menu-item key="template">
                <CopyOutlined /> 从模板创建
              </a-menu-item>
            </a-menu>
          </template>
        </a-dropdown>
        <a-button @click="showTemplateModal">
          <template #icon><CopyOutlined /></template>
          排课模板
        </a-button>
        <a-dropdown>
          <a-button>
            <template #icon><CalendarOutlined /></template>
            视图切换
            <DownOutlined />
          </a-button>
          <template #overlay>
            <a-menu @click="handleViewMenuClick">
              <a-menu-item key="list">
                <UnorderedListOutlined /> 列表视图
              </a-menu-item>
              <a-menu-item key="timetable">
                <TableOutlined /> 课表视图
              </a-menu-item>
              <a-menu-item key="calendar">
                <CalendarOutlined /> 日历视图
              </a-menu-item>
            </a-menu>
          </template>
        </a-dropdown>
      </a-space>
    </div>

    <!-- 筛选区 -->
    <div class="filter-section">
      <a-space wrap>
        <a-select
          v-model:value="filters.classId"
          placeholder="选择班级"
          allowClear
          style="width: 150px"
          @change="loadSchedules"
        >
          <a-select-option v-for="cls in classes" :key="cls.id" :value="cls.id">
            {{ cls.name }}
          </a-select-option>
        </a-select>
        <a-select
          v-model:value="filters.teacherId"
          placeholder="选择教师"
          allowClear
          style="width: 150px"
          @change="loadSchedules"
        >
          <a-select-option v-for="teacher in teachers" :key="teacher.id" :value="teacher.id">
            {{ teacher.name }}
          </a-select-option>
        </a-select>
        <a-range-picker
          :value="dateRange"
          @change="handleDateChange"
        />
        <a-select
          v-model:value="filters.status"
          placeholder="状态"
          allowClear
          style="width: 120px"
          @change="loadSchedules"
        >
          <a-select-option value="ACTIVE">有效</a-select-option>
          <a-select-option value="CANCELLED">已取消</a-select-option>
        </a-select>
      </a-space>
    </div>

    <!-- 排课列表 -->
    <a-table
      :columns="columns"
      :data-source="schedules"
      :loading="loading"
      :pagination="pagination"
      rowKey="id"
      @change="handleTableChange"
    >
      <template #bodyCell="{ column, record }">
        <template v-if="column.key === 'scheduledDate'">
          {{ formatDate(record.scheduledDate) }}
          <span v-if="record.scheduledTime" class="time-slot">{{ record.scheduledTime }}</span>
        </template>
        <template v-if="column.key === 'repeatType'">
          <a-tag v-if="record.repeatType === 'NONE'" color="default">单次</a-tag>
          <a-tag v-else-if="record.repeatType === 'DAILY'" color="blue">每日</a-tag>
          <a-tag v-else-if="record.repeatType === 'WEEKLY'" color="green">每周</a-tag>
        </template>
        <template v-if="column.key === 'source'">
          <a-tag v-if="record.source === 'SCHOOL'" color="orange">学校排课</a-tag>
          <a-tag v-else color="purple">教师预约</a-tag>
        </template>
        <template v-if="column.key === 'status'">
          <a-tag v-if="record.status === 'ACTIVE'" color="success">有效</a-tag>
          <a-tag v-else color="error">已取消</a-tag>
        </template>
        <template v-if="column.key === 'actions'">
          <a-space>
            <a-button type="link" size="small" @click="showEditModal(record)">编辑</a-button>
            <a-popconfirm
              v-if="record.status === 'ACTIVE'"
              title="确定要取消此排课吗？"
              @confirm="handleCancel(record.id)"
            >
              <a-button type="link" size="small" danger>取消</a-button>
            </a-popconfirm>
          </a-space>
        </template>
      </template>
    </a-table>

    <!-- 新建/编辑排课弹窗 -->
    <a-modal
      v-model:open="modalVisible"
      :title="editingSchedule ? '编辑排课' : '新建排课'"
      :confirm-loading="modalLoading"
      @ok="handleSubmit"
      @cancel="handleModalCancel"
      width="600px"
    >
      <a-form
        ref="formRef"
        :model="formState"
        :rules="formRules"
        :label-col="{ span: 6 }"
        :wrapper-col="{ span: 16 }"
      >
        <a-form-item label="班级" name="classId">
          <a-select
            v-model:value="formState.classId"
            placeholder="选择班级"
            :disabled="!!editingSchedule"
          >
            <a-select-option v-for="cls in classes" :key="cls.id" :value="cls.id">
              {{ cls.name }}
            </a-select-option>
          </a-select>
        </a-form-item>
        <a-form-item label="课程" name="courseId">
          <a-select
            v-model:value="formState.courseId"
            placeholder="选择课程"
            :disabled="!!editingSchedule"
          >
            <a-select-option v-for="course in courses" :key="course.id" :value="course.id">
              {{ course.name }}
            </a-select-option>
          </a-select>
        </a-form-item>
        <a-form-item label="授课教师" name="teacherId">
          <a-select
            v-model:value="formState.teacherId"
            placeholder="选择教师（可选）"
            allowClear
          >
            <a-select-option v-for="teacher in teachers" :key="teacher.id" :value="teacher.id">
              {{ teacher.name }}
            </a-select-option>
          </a-select>
        </a-form-item>
        <a-form-item label="排课日期" name="scheduledDate">
          <a-date-picker v-model:value="formState.scheduledDate" style="width: 100%" />
        </a-form-item>
        <a-form-item label="时间段" name="scheduledTimeRange">
          <a-time-range-picker
            v-model:value="formState.scheduledTimeRange"
            format="HH:mm"
            style="width: 100%"
            :placeholder="['开始时间', '结束时间']"
          />
        </a-form-item>
        <a-form-item label="重复方式" name="repeatType">
          <a-radio-group v-model:value="formState.repeatType">
            <a-radio value="NONE">单次</a-radio>
            <a-radio value="DAILY">每日重复</a-radio>
            <a-radio value="WEEKLY">每周重复</a-radio>
          </a-radio-group>
        </a-form-item>
        <a-form-item v-if="formState.repeatType !== 'NONE'" label="重复截止" name="repeatEndDate">
          <a-date-picker v-model:value="formState.repeatEndDate" style="width: 100%" />
        </a-form-item>
        <a-form-item label="备注" name="note">
          <a-textarea v-model:value="formState.note" :rows="2" placeholder="备注信息" />
        </a-form-item>
      </a-form>
    </a-modal>

    <!-- 排课模板管理弹窗 -->
    <a-modal
      v-model:open="templateModalVisible"
      title="排课模板管理"
      :footer="null"
      width="800px"
    >
      <div class="template-header">
        <a-button type="primary" size="small" @click="showCreateTemplateModal">
          <PlusOutlined /> 新建模板
        </a-button>
      </div>
      <a-table
        :columns="templateColumns"
        :data-source="templates"
        :loading="templateLoading"
        size="small"
        rowKey="id"
        :pagination="{ pageSize: 5 }"
      >
        <template #bodyCell="{ column, record }">
          <template v-if="column.key === 'weekDay'">
            {{ weekDayNames[record.weekDay] || '-' }}
          </template>
          <template v-if="column.key === 'isDefault'">
            <a-tag v-if="record.isDefault" color="blue">默认</a-tag>
            <span v-else>-</span>
          </template>
          <template v-if="column.key === 'actions'">
            <a-space>
              <a-button type="link" size="small" @click="applyTemplate(record as any)">应用</a-button>
              <a-button type="link" size="small" @click="showEditTemplateModal(record as any)">编辑</a-button>
              <a-popconfirm title="确定删除？" @confirm="handleDeleteTemplate((record as any).id)">
                <a-button type="link" size="small" danger>删除</a-button>
              </a-popconfirm>
            </a-space>
          </template>
        </template>
      </a-table>
    </a-modal>

    <!-- 新建/编辑模板弹窗 -->
    <a-modal
      v-model:open="templateFormModalVisible"
      :title="editingTemplate ? '编辑模板' : '新建模板'"
      :confirm-loading="templateFormLoading"
      @ok="handleTemplateSubmit"
    >
      <a-form
        :model="templateForm"
        :rules="templateFormRules"
        :label-col="{ span: 6 }"
        :wrapper-col="{ span: 16 }"
      >
        <a-form-item label="模板名称" name="name">
          <a-input v-model:value="templateForm.name" placeholder="如：周一早读" />
        </a-form-item>
        <a-form-item label="课程" name="courseId">
          <a-select v-model:value="templateForm.courseId" placeholder="选择课程">
            <a-select-option v-for="course in courses" :key="course.id" :value="course.id">
              {{ course.name }}
            </a-select-option>
          </a-select>
        </a-form-item>
        <a-form-item label="班级" name="classId">
          <a-select v-model:value="templateForm.classId" placeholder="选择班级" allowClear>
            <a-select-option v-for="cls in classes" :key="cls.id" :value="cls.id">
              {{ cls.name }}
            </a-select-option>
          </a-select>
        </a-form-item>
        <a-form-item label="教师" name="teacherId">
          <a-select v-model:value="templateForm.teacherId" placeholder="选择教师" allowClear>
            <a-select-option v-for="teacher in teachers" :key="teacher.id" :value="teacher.id">
              {{ teacher.name }}
            </a-select-option>
          </a-select>
        </a-form-item>
        <a-form-item label="时间段" name="scheduledTime">
          <a-input v-model:value="templateForm.scheduledTime" placeholder="如：09:00-09:30" />
        </a-form-item>
        <a-form-item label="周几" name="weekDay">
          <a-select v-model:value="templateForm.weekDay" placeholder="选择周几" allowClear>
            <a-select-option :value="1">周一</a-select-option>
            <a-select-option :value="2">周二</a-select-option>
            <a-select-option :value="3">周三</a-select-option>
            <a-select-option :value="4">周四</a-select-option>
            <a-select-option :value="5">周五</a-select-option>
            <a-select-option :value="6">周六</a-select-option>
            <a-select-option :value="0">周日</a-select-option>
          </a-select>
        </a-form-item>
        <a-form-item label="时长(分钟)" name="duration">
          <a-input-number v-model:value="templateForm.duration" :min="5" :max="120" />
        </a-form-item>
        <a-form-item label="设为默认" name="isDefault">
          <a-switch v-model:checked="templateForm.isDefault" />
        </a-form-item>
      </a-form>
    </a-modal>

    <!-- 批量排课弹窗 -->
    <a-modal
      v-model:open="batchModalVisible"
      title="批量新建排课"
      :confirm-loading="batchLoading"
      @ok="handleBatchSubmit"
      width="900px"
    >
      <a-alert
        message="批量添加排课信息，点击下方按钮添加更多行"
        type="info"
        show-icon
        style="margin-bottom: 16px"
      />
      <div class="batch-header">
        <a-button type="dashed" @click="addBatchItem">
          <PlusOutlined /> 添加排课
        </a-button>
      </div>
      <a-table
        :columns="batchColumns"
        :data-source="batchItems"
        size="small"
        rowKey="key"
        :pagination="false"
      >
        <template #bodyCell="{ column, record, index }">
          <template v-if="column.key === 'classId'">
            <a-select v-model:value="record.classId" placeholder="班级" style="width: 100%">
              <a-select-option v-for="cls in classes" :key="cls.id" :value="cls.id">
                {{ cls.name }}
              </a-select-option>
            </a-select>
          </template>
          <template v-if="column.key === 'courseId'">
            <a-select v-model:value="record.courseId" placeholder="课程" style="width: 100%">
              <a-select-option v-for="course in courses" :key="course.id" :value="course.id">
                {{ course.name }}
              </a-select-option>
            </a-select>
          </template>
          <template v-if="column.key === 'teacherId'">
            <a-select v-model:value="record.teacherId" placeholder="教师" style="width: 100%" allowClear>
              <a-select-option v-for="teacher in teachers" :key="teacher.id" :value="teacher.id">
                {{ teacher.name }}
              </a-select-option>
            </a-select>
          </template>
          <template v-if="column.key === 'scheduledDate'">
            <a-date-picker v-model:value="record.scheduledDate" style="width: 100%" />
          </template>
          <template v-if="column.key === 'scheduledTime'">
            <a-input v-model:value="record.scheduledTime" placeholder="09:00-09:30" style="width: 100%" />
          </template>
          <template v-if="column.key === 'actions'">
            <a-button type="link" size="small" danger @click="removeBatchItem(index)">
              <DeleteOutlined />
            </a-button>
          </template>
        </template>
      </a-table>
    </a-modal>

    <!-- 从模板创建弹窗 -->
    <a-modal
      v-model:open="templateSelectModalVisible"
      title="从模板创建排课"
      :confirm-loading="templateSelectLoading"
      @ok="handleTemplateSelectSubmit"
    >
      <a-form :label-col="{ span: 6 }" :wrapper-col="{ span: 16 }">
        <a-form-item label="选择模板">
          <a-select v-model:value="selectedTemplateId" placeholder="选择排课模板" style="width: 100%">
            <a-select-option v-for="tpl in templates" :key="tpl.id" :value="tpl.id">
              {{ tpl.name }} - {{ tpl.courseName }} ({{ tpl.scheduledTime }})
            </a-select-option>
          </a-select>
        </a-form-item>
        <a-form-item label="排课日期">
          <a-date-picker v-model:value="templateApplyDate" style="width: 100%" />
        </a-form-item>
        <a-form-item v-if="selectedTemplate" label="模板详情">
          <a-descriptions :column="1" size="small">
            <a-descriptions-item label="课程">{{ selectedTemplate.courseName }}</a-descriptions-item>
            <a-descriptions-item label="班级">{{ selectedTemplate.className || '未指定' }}</a-descriptions-item>
            <a-descriptions-item label="教师">{{ selectedTemplate.teacherName || '未指定' }}</a-descriptions-item>
            <a-descriptions-item label="时间">{{ selectedTemplate.scheduledTime }}</a-descriptions-item>
          </a-descriptions>
        </a-form-item>
      </a-form>
    </a-modal>
  </div>
</template>

<script setup lang="ts">
import { ref, reactive, onMounted, computed } from 'vue';
import { useRouter } from 'vue-router';
import { message } from 'ant-design-vue';
import type { TableProps, FormInstance } from 'ant-design-vue';
import dayjs, { Dayjs } from 'dayjs';
import { PlusOutlined, CalendarOutlined, DownOutlined, AppstoreAddOutlined, CopyOutlined, DeleteOutlined, UnorderedListOutlined, TableOutlined } from '@ant-design/icons-vue';
import {
  getSchedules,
  createSchedule,
  updateSchedule,
  cancelSchedule,
  getClasses,
  getTeachers,
  getSchoolCourses,
  getScheduleTemplates,
  createScheduleTemplate,
  updateScheduleTemplate,
  deleteScheduleTemplate,
  applyScheduleTemplate,
  batchCreateSchedules,
  type SchedulePlan,
  type CreateScheduleDto,
  type UpdateScheduleDto,
  type ClassInfo,
  type Teacher,
  type ScheduleTemplate,
} from '@/api/school';

const router = useRouter();

// 数据
const loading = ref(false);
const schedules = ref<SchedulePlan[]>([]);
const classes = ref<ClassInfo[]>([]);
const teachers = ref<Teacher[]>([]);
const courses = ref<any[]>([]);

// 筛选
const filters = reactive({
  classId: undefined as number | undefined,
  teacherId: undefined as number | undefined,
  status: undefined as string | undefined,
  startDate: undefined as string | undefined,
  endDate: undefined as string | undefined,
});
const dateRange = ref<[Dayjs, Dayjs] | undefined>(undefined);

// 分页
const pagination = reactive({
  current: 1,
  pageSize: 20,
  total: 0,
  showSizeChanger: true,
  showTotal: (total: number) => `共 ${total} 条`,
});

// 表格列
const columns = [
  { title: '班级', dataIndex: 'className', key: 'className' },
  { title: '课程', dataIndex: 'courseName', key: 'courseName' },
  { title: '授课教师', dataIndex: 'teacherName', key: 'teacherName' },
  { title: '排课时间', key: 'scheduledDate' },
  { title: '重复', dataIndex: 'repeatType', key: 'repeatType' },
  { title: '来源', dataIndex: 'source', key: 'source' },
  { title: '状态', dataIndex: 'status', key: 'status' },
  { title: '操作', key: 'actions', width: 150 },
];

// 弹窗
const modalVisible = ref(false);
const modalLoading = ref(false);
const editingSchedule = ref<SchedulePlan | null>(null);
const formRef = ref<FormInstance>();

// 表单
const formState = reactive<CreateScheduleDto & { repeatEndDate?: Dayjs; scheduledDate?: Dayjs; scheduledTimeRange?: [Dayjs, Dayjs] }>({
  classId: undefined as any,
  courseId: undefined as any,
  teacherId: undefined,
  scheduledDate: undefined,
  scheduledTimeRange: undefined,
  repeatType: 'NONE',
  repeatEndDate: undefined,
  note: undefined,
});

const formRules = {
  classId: [{ required: true, message: '请选择班级' }],
  courseId: [{ required: true, message: '请选择课程' }],
  scheduledDate: [{ required: true, message: '请选择排课日期' }],
  repeatType: [{ required: true, message: '请选择重复方式' }],
};

// 加载数据
const loadSchedules = async () => {
  loading.value = true;
  try {
    const res = await getSchedules({
      page: pagination.current,
      pageSize: pagination.pageSize,
      ...filters,
    });
    schedules.value = res.items;
    pagination.total = res.total;
  } catch (error) {
    message.error('加载排课列表失败');
  } finally {
    loading.value = false;
  }
};

const loadBaseData = async () => {
  try {
    const [classesRes, teachersRes, coursesRes] = await Promise.all([
      getClasses(),
      getTeachers({ page: 1, pageSize: 100 }),
      getSchoolCourses(),
    ]);
    classes.value = classesRes;
    teachers.value = teachersRes.items;
    courses.value = coursesRes;
  } catch (error) {
    message.error('加载基础数据失败');
  }
};

// 事件处理
const handleTableChange: TableProps['onChange'] = (pag) => {
  pagination.current = pag.current || 1;
  pagination.pageSize = pag.pageSize || 20;
  loadSchedules();
};

const handleDateChange = (dates: any) => {
  if (dates && dates.length === 2) {
    dateRange.value = dates;
    filters.startDate = dates[0].format('YYYY-MM-DD');
    filters.endDate = dates[1].format('YYYY-MM-DD');
  } else {
    dateRange.value = undefined;
    filters.startDate = undefined;
    filters.endDate = undefined;
  }
  loadSchedules();
};

const showCreateModal = () => {
  editingSchedule.value = null;
  Object.assign(formState, {
    classId: undefined,
    courseId: undefined,
    teacherId: undefined,
    scheduledDate: undefined,
    scheduledTimeRange: undefined,
    repeatType: 'NONE',
    repeatEndDate: undefined,
    note: undefined,
  });
  modalVisible.value = true;
};

const showEditModal = (record: any) => {
  editingSchedule.value = record;

  // 解析时间字符串为时间范围
  let timeRange: [Dayjs, Dayjs] | undefined = undefined;
  if (record.scheduledTime) {
    const parts = record.scheduledTime.split('-');
    if (parts.length === 2) {
      const baseDate = dayjs().format('YYYY-MM-DD');
      timeRange = [
        dayjs(`${baseDate} ${parts[0]}`, 'YYYY-MM-DD HH:mm'),
        dayjs(`${baseDate} ${parts[1]}`, 'YYYY-MM-DD HH:mm'),
      ];
    }
  }

  Object.assign(formState, {
    classId: record.classId,
    courseId: record.courseId,
    teacherId: record.teacherId,
    scheduledDate: record.scheduledDate ? dayjs(record.scheduledDate) : undefined,
    scheduledTimeRange: timeRange,
    repeatType: record.repeatType,
    repeatEndDate: record.repeatEndDate ? dayjs(record.repeatEndDate) : undefined,
    note: record.note,
  });
  modalVisible.value = true;
};

const handleModalCancel = () => {
  modalVisible.value = false;
  formRef.value?.resetFields();
};

const handleSubmit = async () => {
  try {
    await formRef.value?.validate();
    modalLoading.value = true;

    // 格式化时间范围
    let scheduledTime: string | undefined = undefined;
    if (formState.scheduledTimeRange && formState.scheduledTimeRange.length === 2) {
      scheduledTime = `${formState.scheduledTimeRange[0].format('HH:mm')}-${formState.scheduledTimeRange[1].format('HH:mm')}`;
    }

    const data: CreateScheduleDto | UpdateScheduleDto = {
      classId: formState.classId,
      courseId: formState.courseId,
      teacherId: formState.teacherId,
      scheduledDate: formState.scheduledDate?.format('YYYY-MM-DD'),
      scheduledTime,
      repeatType: formState.repeatType,
      repeatEndDate: formState.repeatEndDate?.format('YYYY-MM-DD'),
      note: formState.note,
    };

    if (editingSchedule.value) {
      await updateSchedule(editingSchedule.value.id, data);
      message.success('更新成功');
    } else {
      await createSchedule(data as CreateScheduleDto);
      message.success('创建成功');
    }

    modalVisible.value = false;
    loadSchedules();
  } catch (error) {
    message.error(editingSchedule.value ? '更新失败' : '创建失败');
  } finally {
    modalLoading.value = false;
  }
};

const handleCancel = async (id: number) => {
  try {
    await cancelSchedule(id);
    message.success('取消成功');
    loadSchedules();
  } catch (error) {
    message.error('取消失败');
  }
};

const switchToTimetable = () => {
  router.push('/school/schedule/timetable');
};

const switchToCalendar = () => {
  router.push('/school/schedule/calendar');
};

// 视图切换菜单点击处理
const handleViewMenuClick = (e: any) => {
  const key = e.key;
  if (key === 'list') {
    // 当前页面就是列表视图
  } else if (key === 'timetable') {
    switchToTimetable();
  } else if (key === 'calendar') {
    switchToCalendar();
  }
};

const formatDate = (date: string | undefined) => {
  if (!date) return '-';
  return dayjs(date).format('YYYY-MM-DD');
};

// ==================== 模板管理 ====================

const templateModalVisible = ref(false);
const templateLoading = ref(false);
const templates = ref<ScheduleTemplate[]>([]);
const templateColumns = [
  { title: '模板名称', dataIndex: 'name', key: 'name' },
  { title: '课程', dataIndex: 'courseName', key: 'courseName' },
  { title: '班级', dataIndex: 'className', key: 'className' },
  { title: '教师', dataIndex: 'teacherName', key: 'teacherName' },
  { title: '时间', dataIndex: 'scheduledTime', key: 'scheduledTime' },
  { title: '周几', key: 'weekDay' },
  { title: '默认', key: 'isDefault' },
  { title: '操作', key: 'actions', width: 180 },
];

const weekDayNames: Record<number, string> = {
  0: '周日',
  1: '周一',
  2: '周二',
  3: '周三',
  4: '周四',
  5: '周五',
  6: '周六',
};

const showTemplateModal = async () => {
  templateModalVisible.value = true;
  await loadTemplates();
};

const loadTemplates = async () => {
  templateLoading.value = true;
  try {
    templates.value = await getScheduleTemplates();
  } catch (error) {
    message.error('加载模板失败');
  } finally {
    templateLoading.value = false;
  }
};

// 模板表单
const templateFormModalVisible = ref(false);
const templateFormLoading = ref(false);
const editingTemplate = ref<ScheduleTemplate | null>(null);
const templateForm = reactive({
  name: '',
  courseId: undefined as number | undefined,
  classId: undefined as number | undefined,
  teacherId: undefined as number | undefined,
  scheduledTime: '09:00-09:30',
  weekDay: undefined as number | undefined,
  duration: 30,
  isDefault: false,
});

const templateFormRules = {
  name: [{ required: true, message: '请输入模板名称' }],
  courseId: [{ required: true, message: '请选择课程' }],
};

const showCreateTemplateModal = () => {
  editingTemplate.value = null;
  Object.assign(templateForm, {
    name: '',
    courseId: undefined,
    classId: undefined,
    teacherId: undefined,
    scheduledTime: '09:00-09:30',
    weekDay: undefined,
    duration: 30,
    isDefault: false,
  });
  templateFormModalVisible.value = true;
};

const showEditTemplateModal = (record: ScheduleTemplate) => {
  editingTemplate.value = record;
  Object.assign(templateForm, {
    name: record.name,
    courseId: record.courseId,
    classId: record.classId,
    teacherId: record.teacherId,
    scheduledTime: record.scheduledTime || '09:00-09:30',
    weekDay: record.weekDay,
    duration: record.duration || 30,
    isDefault: record.isDefault,
  });
  templateFormModalVisible.value = true;
};

const handleTemplateSubmit = async () => {
  templateFormLoading.value = true;
  try {
    if (editingTemplate.value) {
      await updateScheduleTemplate(editingTemplate.value.id, templateForm as any);
      message.success('更新成功');
    } else {
      await createScheduleTemplate(templateForm as any);
      message.success('创建成功');
    }
    templateFormModalVisible.value = false;
    await loadTemplates();
  } catch (error) {
    message.error(editingTemplate.value ? '更新失败' : '创建失败');
  } finally {
    templateFormLoading.value = false;
  }
};

const handleDeleteTemplate = async (id: number) => {
  try {
    await deleteScheduleTemplate(id);
    message.success('删除成功');
    await loadTemplates();
  } catch (error) {
    message.error('删除失败');
  }
};

// 从模板应用
const templateSelectModalVisible = ref(false);
const templateSelectLoading = ref(false);
const selectedTemplateId = ref<number | undefined>();
const templateApplyDate = ref<Dayjs>(dayjs());

const selectedTemplate = computed(() => {
  if (!selectedTemplateId.value) return null;
  return templates.value.find(t => t.id === selectedTemplateId.value);
});

const applyTemplate = (record: ScheduleTemplate) => {
  selectedTemplateId.value = record.id;
  templateApplyDate.value = dayjs();
  templateSelectModalVisible.value = true;
};

const handleTemplateSelectSubmit = async () => {
  if (!selectedTemplateId.value || !templateApplyDate.value) {
    message.warning('请选择模板和日期');
    return;
  }
  templateSelectLoading.value = true;
  try {
    await applyScheduleTemplate(selectedTemplateId.value, {
      scheduledDate: templateApplyDate.value.format('YYYY-MM-DD'),
    });
    message.success('应用模板成功');
    templateSelectModalVisible.value = false;
    templateModalVisible.value = false;
    await loadSchedules();
  } catch (error) {
    message.error('应用模板失败');
  } finally {
    templateSelectLoading.value = false;
  }
};

// ==================== 批量排课 ====================

const batchModalVisible = ref(false);
const batchLoading = ref(false);
const batchItems = ref<any[]>([]);
let batchKey = 0;

const batchColumns = [
  { title: '班级', key: 'classId', width: 120 },
  { title: '课程', key: 'courseId', width: 150 },
  { title: '教师', key: 'teacherId', width: 100 },
  { title: '日期', key: 'scheduledDate', width: 140 },
  { title: '时间', key: 'scheduledTime', width: 120 },
  { title: '', key: 'actions', width: 50 },
];

const showBatchModal = () => {
  batchItems.value = [];
  batchKey = 0;
  addBatchItem();
  batchModalVisible.value = true;
};

const addBatchItem = () => {
  batchItems.value.push({
    key: ++batchKey,
    classId: undefined,
    courseId: undefined,
    teacherId: undefined,
    scheduledDate: dayjs(),
    scheduledTime: '09:00-09:30',
  });
};

const removeBatchItem = (index: number) => {
  batchItems.value.splice(index, 1);
};

const handleBatchSubmit = async () => {
  // 验证数据
  const validItems = batchItems.value.filter(item =>
    item.classId && item.courseId && item.scheduledDate && item.scheduledTime
  );

  if (validItems.length === 0) {
    message.warning('请至少填写一条完整的排课信息');
    return;
  }

  batchLoading.value = true;
  try {
    const schedules = validItems.map(item => ({
      classId: item.classId,
      courseId: item.courseId,
      teacherId: item.teacherId,
      scheduledDate: item.scheduledDate.format('YYYY-MM-DD'),
      scheduledTime: item.scheduledTime,
    }));

    const result = await batchCreateSchedules(schedules);
    message.success(`成功创建 ${result.success} 条排课${result.failed > 0 ? `，${result.failed} 条失败` : ''}`);
    batchModalVisible.value = false;
    await loadSchedules();
  } catch (error) {
    message.error('批量创建失败');
  } finally {
    batchLoading.value = false;
  }
};

// 创建菜单点击处理
const handleCreateMenuClick = (e: any) => {
  const key = e.key;
  if (key === 'single') {
    showCreateModal();
  } else if (key === 'batch') {
    showBatchModal();
  } else if (key === 'template') {
    selectedTemplateId.value = undefined;
    templateApplyDate.value = dayjs();
    templateSelectModalVisible.value = true;
    loadTemplates();
  }
};

onMounted(() => {
  loadBaseData();
  loadSchedules();
});
</script>

<style scoped lang="scss">
.schedule-view {
  .page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;

    h2 {
      margin: 0;
    }
  }

  .filter-section {
    margin-bottom: 20px;
    padding: 16px;
    background: #fafafa;
    border-radius: 8px;
  }

  .time-slot {
    margin-left: 8px;
    color: #666;
    font-size: 12px;
  }

  .template-header {
    margin-bottom: 16px;
    display: flex;
    justify-content: flex-end;
  }

  .batch-header {
    margin-bottom: 16px;
  }
}
</style>
