<template>
	<!-- #ifdef APP -->
	<scroll-view style="flex:1">
	<!-- #endif -->
	<view class="page">
		<!-- 导航栏 -->
		<view class="nav" :style="{ paddingTop: headerPaddingTop + 'px', height: headerTotalHeight + 'px' }">
			<view class="nav-back" @tap="handleCancel">
				<view class="nav-back-icon"></view>
			</view>
			<text class="nav-title">创建视频会议</text>
			<view class="nav-capsule"></view>
		</view>

		<!-- 内容区域 -->
		<scroll-view class="content" scroll-y="true" :style="{ marginTop: headerTotalHeight + 'px' }">
			<!-- 表单区域 -->
			<view class="section">
				<view class="form-container">
					<!-- 会议名称 -->
					<view class="form-item">
						<text class="form-label">会议名称</text>
						<input
							v-model="formData.meetingName"
							class="form-input"
							placeholder="请输入会议名称"
							maxlength="50"
						/>
					</view>

					<!-- 开始时间 -->
					<view class="form-item">
						<text class="form-label">开始时间<text class="required">*</text></text>
						<picker
							mode="multiSelector"
							:value="startTimePickerValue"
							:range="timePickerRange"
							@change="handleStartTimeChange"
						>
							<view class="picker-content">
								<text class="picker-text" :class="{ placeholder: !formData.startTime }">
									{{ formData.startTime || '请选择开始时间' }}
								</text>
								<text class="picker-arrow">></text>
							</view>
						</picker>
					</view>

					<!-- 结束时间 -->
					<view class="form-item">
						<text class="form-label">结束时间<text class="required">*</text></text>
						<picker
							mode="multiSelector"
							:value="endTimePickerValue"
							:range="timePickerRange"
							@change="handleEndTimeChange"
						>
							<view class="picker-content">
								<text class="picker-text" :class="{ placeholder: !formData.endTime }">
									{{ formData.endTime || '请选择结束时间' }}
								</text>
								<text class="picker-arrow">></text>
							</view>
						</picker>
					</view>

					<!-- 提前入会 -->
					<view class="form-item">
						<text class="form-label">提前入会（分钟）</text>
						<input
							v-model.number="formData.advance"
							class="form-input"
							type="number"
							placeholder="提前入会时间"
						/>
						<text class="form-tip">用户可在会议开始前N分钟加入</text>
					</view>

					<!-- 会议密码 -->
					<view class="form-item">
						<text class="form-label">会议密码</text>
						<input
							v-model="formData.meetingPassword"
							class="form-input"
							type="text"
							password
							placeholder="可选，留空则无密码"
							maxlength="20"
						/>
					</view>

					<!-- 最大人数 -->
					<view class="form-item">
						<text class="form-label">最大人数</text>
						<input
							v-model.number="formData.maxParticipants"
							class="form-input"
							type="number"
							placeholder="最大参与人数"
						/>
					</view>
				</view>
			</view>

			<!-- 底部占位 -->
			<view class="footer-placeholder"></view>
		</scroll-view>

		<!-- 底部操作栏 -->
		<view class="footer-actions">
			<view class="action-button" @tap="handleCancel">
				<text class="button-text">取消</text>
			</view>
			<view class="action-button primary" @tap="handleSubmit">
				<text class="button-text">创建会议</text>
			</view>
		</view>
	</view>
	<!-- #ifdef APP -->
	</scroll-view>
	<!-- #endif -->
</template>

<script setup lang="ts">
import { ref, reactive, computed, onMounted } from 'vue'
import { onLoad } from '@dcloudio/uni-app'
import { workcaseChatAPI } from '../../../api/workcase/workcaseChat'
import type { CreateMeetingParam } from '../../../types/workcase/chatRoom'

// 响应式数据
const headerPaddingTop = ref<number>(44)
const headerTotalHeight = ref<number>(88)

// 路由参数
const roomId = ref('')
const workcaseId = ref('')

// 表单数据
const formData = reactive<CreateMeetingParam>({
	roomId: '',
	workcaseId: '',
	meetingName: '',
	startTime: '',
	endTime: '',
	advance: 5,
	meetingPassword: '',
	maxParticipants: 10
})

const submitting = ref(false)

// 时间选择器数据
const startTimePickerValue = ref([0, 0, 0])
const endTimePickerValue = ref([0, 0, 0])

// 生成时间选择器范围
const timePickerRange = computed(() => {
	const now = new Date()
	const currentYear = now.getFullYear()
	const currentMonth = now.getMonth()
	const currentDay = now.getDate()

	// 日期范围：今天到未来30天
	const dates: string[] = []
	for (let i = 0; i < 30; i++) {
		const date = new Date(currentYear, currentMonth, currentDay + i)
		const month = String(date.getMonth() + 1).padStart(2, '0')
		const day = String(date.getDate()).padStart(2, '0')
		dates.push(`${month}-${day}`)
	}

	// 小时：00-23
	const hours: string[] = []
	for (let i = 0; i < 24; i++) {
		hours.push(String(i).padStart(2, '0'))
	}

	// 分钟：00、15、30、45
	const minutes = ['00', '15', '30', '45']

	return [dates, hours, minutes]
})

// 页面加载时获取参数
onLoad((options: any) => {
	if (options.roomId) {
		roomId.value = options.roomId
		formData.roomId = options.roomId
	}
	if (options.workcaseId) {
		workcaseId.value = options.workcaseId
		formData.workcaseId = options.workcaseId
	}
})

onMounted(() => {
	const windowInfo = uni.getWindowInfo()
	const statusBarHeight = windowInfo.statusBarHeight || 44
	
	// #ifdef MP-WEIXIN
	try {
		const menuButtonInfo = uni.getMenuButtonBoundingClientRect()
		headerPaddingTop.value = menuButtonInfo.top
		headerTotalHeight.value = menuButtonInfo.bottom + 8
	} catch (e) {
		headerPaddingTop.value = statusBarHeight
		headerTotalHeight.value = statusBarHeight + 44
	}
	// #endif
	// #ifndef MP-WEIXIN
	headerPaddingTop.value = statusBarHeight
	headerTotalHeight.value = statusBarHeight + 44
	// #endif
})

// 处理开始时间选择
function handleStartTimeChange(e: any) {
	const val = e.detail.value
	startTimePickerValue.value = val

	const now = new Date()
	const selectedDate = new Date(now.getFullYear(), now.getMonth(), now.getDate() + val[0])
	const year = selectedDate.getFullYear()
	const month = String(selectedDate.getMonth() + 1).padStart(2, '0')
	const day = String(selectedDate.getDate()).padStart(2, '0')
	const hour = timePickerRange.value[1][val[1]]
	const minute = timePickerRange.value[2][val[2]]

	formData.startTime = `${year}-${month}-${day} ${hour}:${minute}:00`
}

// 处理结束时间选择
function handleEndTimeChange(e: any) {
	const val = e.detail.value
	endTimePickerValue.value = val

	const now = new Date()
	const selectedDate = new Date(now.getFullYear(), now.getMonth(), now.getDate() + val[0])
	const year = selectedDate.getFullYear()
	const month = String(selectedDate.getMonth() + 1).padStart(2, '0')
	const day = String(selectedDate.getDate()).padStart(2, '0')
	const hour = timePickerRange.value[1][val[1]]
	const minute = timePickerRange.value[2][val[2]]

	formData.endTime = `${year}-${month}-${day} ${hour}:${minute}:00`
}

// 验证表单
function validateForm(): boolean {
	if (!formData.startTime) {
		uni.showToast({ title: '请选择开始时间', icon: 'none' })
		return false
	}

	if (!formData.endTime) {
		uni.showToast({ title: '请选择结束时间', icon: 'none' })
		return false
	}

	const start = new Date(formData.startTime.replace(' ', 'T')).getTime()
	const end = new Date(formData.endTime.replace(' ', 'T')).getTime()

	if (start < Date.now()) {
		uni.showToast({ title: '开始时间不能早于当前时间', icon: 'none' })
		return false
	}

	if (end <= start) {
		uni.showToast({ title: '结束时间必须晚于开始时间', icon: 'none' })
		return false
	}

	if (end - start < 5 * 60 * 1000) {
		uni.showToast({ title: '会议时长不能少于5分钟', icon: 'none' })
		return false
	}

	if (end - start > 24 * 60 * 60 * 1000) {
		uni.showToast({ title: '会议时长不能超过24小时', icon: 'none' })
		return false
	}

	if (formData.advance !== undefined && (formData.advance < 0 || formData.advance > 60)) {
		uni.showToast({ title: '提前入会时间范围为0-60分钟', icon: 'none' })
		return false
	}

	if (formData.maxParticipants !== undefined && (formData.maxParticipants < 2 || formData.maxParticipants > 100)) {
		uni.showToast({ title: '参与人数范围为2-100人', icon: 'none' })
		return false
	}

	return true
}

// 提交表单
async function handleSubmit() {
	if (!validateForm()) {
		return
	}

	if (submitting.value) return
	submitting.value = true

	try {
		const result = await workcaseChatAPI.createVideoMeeting(formData)

		if (result.success && result.data) {
			uni.showToast({ title: '会议创建成功', icon: 'success' })
			// 延迟返回，让用户看到成功提示
			setTimeout(() => {
				uni.navigateBack()
			}, 1500)
		} else {
			uni.showToast({ title: result.message || '创建会议失败', icon: 'none' })
		}
	} catch (error) {
		console.error('创建会议失败:', error)
		uni.showToast({ title: '创建会议失败，请重试', icon: 'none' })
	} finally {
		submitting.value = false
	}
}

// 取消
function handleCancel() {
	uni.navigateBack()
}
</script>

<style lang="scss" scoped>
@import "./MeetingCreate.scss";
</style>
