<template>
	<el-dialog title="转宿" v-model="visible" :close-on-click-modal="false" draggable width="800px">
		<el-form ref="dataFormRef" :model="form" :rules="dataRules" label-width="100px" :validate-on-rule-change="false" v-loading="loading">
			<el-row :gutter="24">
				<el-col :span="12" class="mb20">
					<el-form-item label="房间号" prop="roomNo">
						<el-select v-model="form.roomNo" placeholder="请选择房间号" clearable filterable style="width: 100%" @change="handleRoomChange">
							<el-option v-for="item in roomList" :key="item.roomNo" :label="item.roomNo" :value="item.roomNo"> </el-option>
						</el-select>
					</el-form-item>
				</el-col>

				<el-col :span="12" class="mb20">
					<el-form-item label="床位号" prop="bedNo">
						<el-select v-model="form.bedNo" placeholder="请选择床位号" clearable style="width: 100%">
							<el-option v-for="item in bedNoList" :key="item.bedNo" :value="item.bedNo">
								<span :class="{ 'bed-option-occupied': item.haveStudent }"> {{ item.bedNo }}{{ item.haveStudent ? ' (有人)' : '' }} </span>
							</el-option>
						</el-select>
					</el-form-item>
				</el-col>

				<el-col :span="12" class="mb20">
					<el-form-item label="学号" prop="stuNo">
						<el-input v-model="form.stuNo" placeholder="请输入学号" disabled />
					</el-form-item>
				</el-col>

				<el-col :span="12" class="mb20">
					<el-form-item label="是否舍长" prop="isLeader">
						<el-select v-model="form.isLeader" placeholder="请选择" clearable style="width: 100%">
							<el-option label="是" value="1" />
							<el-option label="否" value="0" />
						</el-select>
					</el-form-item>
				</el-col>
			</el-row>
		</el-form>
		<template #footer>
			<span class="dialog-footer">
				<el-button @click="visible = false">取 消</el-button>
				<el-button type="primary" @click="onSubmit" :disabled="loading">确 认</el-button>
			</span>
		</template>
	</el-dialog>
</template>

<script setup lang="ts" name="DormRoomStudentTransferDialog">
import { ref, reactive, nextTick, onMounted } from 'vue';
import { useMessage } from '/@/hooks/message';
import { editObj } from '/@/api/stuwork/dormroomstudent';
import { getRoomList } from '/@/api/stuwork/dormroom';
import { fearchRoomStuNum } from '/@/api/stuwork/dormroomstudent';

const emit = defineEmits(['refresh']);

// 定义变量内容
const dataFormRef = ref();
const visible = ref(false);
const loading = ref(false);
const roomList = ref<any[]>([]);
// 床位列表：支持 haveStudent 标记（true=有人，false=无人）
const bedNoList = ref<Array<{ bedNo: string; haveStudent: boolean }>>([]);

// 提交表单数据
const form = reactive({
	id: '',
	roomNo: '',
	bedNo: '',
	stuNo: '',
	isLeader: '0',
});

// 定义校验规则
const dataRules = {
	roomNo: [{ required: true, message: '请选择房间号', trigger: 'change' }],
	bedNo: [{ required: true, message: '请选择床位号', trigger: 'change' }],
	isLeader: [{ required: true, message: '请选择是否舍长', trigger: 'change' }],
};

// 房间号变化时获取床位号列表（支持 haveStudent：true=有人，false=无人）
const handleRoomChange = async (roomNo: string) => {
	if (!roomNo) {
		bedNoList.value = [];
		form.bedNo = '';
		return;
	}

	const toBedItem = (item: any): { bedNo: string; haveStudent: boolean } => {
		if (typeof item === 'number' || typeof item === 'string') {
			return { bedNo: String(item), haveStudent: false };
		}
		return {
			bedNo: String(item?.bedNo ?? item?.value ?? item ?? ''),
			haveStudent: !!(item && item.haveStudent === true),
		};
	};

	try {
		const res = await fearchRoomStuNum(roomNo);
		if (res.data) {
			if (Array.isArray(res.data)) {
				bedNoList.value = res.data.map(toBedItem).filter((b) => b.bedNo);
			} else if (res.data.bedNos && Array.isArray(res.data.bedNos)) {
				bedNoList.value = res.data.bedNos.map((item: any) =>
					toBedItem(typeof item === 'object' ? item : { bedNo: String(item), haveStudent: false })
				);
			} else {
				bedNoList.value = [];
			}
		} else {
			bedNoList.value = [];
		}
		form.bedNo = '';
	} catch (err) {
		bedNoList.value = [];
		form.bedNo = '';
	}
};

// 打开弹窗
const openDialog = async (row: any) => {
	visible.value = true;

	// 重置表单数据
	await nextTick();
	dataFormRef.value?.resetFields();
	form.id = row.id || '';
	form.roomNo = row.roomNo || '';
	form.bedNo = row.bedNo || '';
	form.stuNo = row.stuNo || '';
	form.isLeader = row.isLeader || '0';
	bedNoList.value = [];

	// 如果有房间号，先拉取床位列表再回填床位号（避免 handleRoomChange 清空 bedNo）
	if (form.roomNo) {
		await handleRoomChange(form.roomNo);
		form.bedNo = row.bedNo || '';
	}
};

// 提交表单
const onSubmit = async () => {
	if (!dataFormRef.value) return;

	await dataFormRef.value.validate(async (valid: boolean) => {
		if (!valid) return;

		loading.value = true;
		try {
			await editObj({
				id: form.id,
				roomNo: form.roomNo,
				bedNo: form.bedNo,
				stuNo: form.stuNo,
				isLeader: form.isLeader,
			});
			useMessage().success('转宿成功');
			visible.value = false;
			emit('refresh');
		} catch (err: any) {
			// 统一交给全局拦截器处理错误提示，避免在这里重复弹出一次
			console.error('转宿失败', err);
		} finally {
			loading.value = false;
		}
	});
};

// 获取房间号列表
const getRoomListData = async () => {
	try {
		const res = await getRoomList();
		if (res.data) {
			roomList.value = Array.isArray(res.data) ? res.data : [];
		}
	} catch (err) {
		roomList.value = [];
	}
};

// 初始化
onMounted(() => {
	getRoomListData();
});

// 暴露方法给父组件
defineExpose({
	openDialog,
});
</script>

<style scoped lang="scss">
.bed-option-occupied {
	color: var(--el-color-warning);
}
</style>
