<template>
	<view class="main">
		<view class="bg-white default_title">
			<u--form :model="inputForm" labelWidth="130px" class="u-form default_title" labelPosition="left"
				ref="inputForm">
				<u-form-item label="年度" borderBottom prop="yearNum">
					<u--input readonly v-model="inputForm.yearNum" placeholder="输入年度" border="none"></u--input>
				</u-form-item>
				<u-form-item label="卡号" borderBottom prop="cardNum">
					<u--input readonly v-model="inputForm.cardNum" placeholder="输入卡号" border="none"></u--input>
				</u-form-item>
			</u--form>
		</view>
		<view class="bg-white margin-top main_info">
			<u--form :model="inputForm" :rules="rules" labelWidth="130px" class="u-form default_title"
				labelPosition="left" ref="inputForm">
				<u-form-item required label="来文机关" borderBottom prop="sendingAgency">
					<u--input v-model="inputForm.sendingAgency" placeholder="请输入来文机关" border="none"></u--input>
				</u-form-item>
				<u-form-item label="来文字号" borderBottom prop="docFontSize">
					<u--input v-model="inputForm.docFontSize" placeholder="请输入来文字号" border="none"></u--input>
				</u-form-item>
				<u-form-item label="文件来源" borderBottom prop="fileSource">
					<u--input v-model="inputForm.fileSource" placeholder="请输入文件来源" border="none"></u--input>
				</u-form-item>
				<u-form-item label="成文时间" borderBottom prop="writtenTime">
					<jp-datetime-picker :show="iswrite" v-model="inputForm.writtenTime" placeholder="选择成文时间"
						mode="date"></jp-datetime-picker>
				</u-form-item>
				<u-form-item label="收文时间" borderBottom prop="receivingTime">
					<jp-datetime-picker :show="isreceive" v-model="inputForm.receivingTime" placeholder="选择收文时间"
						mode="date"></jp-datetime-picker>
				</u-form-item>
				<u-form-item required label="内容摘要" borderBottom prop="contentSummary">
					<u--textarea v-model="inputForm.contentSummary" placeholder="请输入内容摘要" border="none"></u--textarea>
				</u-form-item>
				<u-form-item label="来文附件" prop="attachedDocumentId" labelPosition="top">
					<u-upload :fileList="fileLists" @afterRead="afterRead" multiple :maxCount="9" width="250"
						height="150" accept="file" :previewImage="false">
						<view class="addfile flex"> <u-icon size="20" bold name="plus"></u-icon></view>
					</u-upload>
					<u-upload :fileList="fileLists" @afterRead="afterRead" multiple :maxCount="9" width="80" height="80"
						accept="image" capture="camera" :previewImage="false">
					</u-upload>
				</u-form-item>
				<view class="text-danger" style="font-size: 12px!important;">请确保上传图片内容清晰可见,所有涉密敏感信息不得上传</view>
				<view class="other_info">
					<view class="other_pdf">
						<u-cell-group>
							<u-cell v-for="item in fileList" :title="item.name">
								<u-icon slot="right-icon" size="28" name="trash-fill"
									@click="deleteFile(item)"></u-icon>
							</u-cell>
						</u-cell-group>
					</view>
				</view>
				<u-upload :fileList="imgList" @delete="deletePic" multiple :maxCount="imgList.length"
					:previewFullImage="true"></u-upload>

				<view class="submit_btn flex">
					<u-button v-if="!loading" type="primary" text="提交新增" @click="formSubmit"></u-button>
					<u-button v-if="loading" :loading="loading" type="primary" text="加载中"></u-button>
				</view>
			</u--form>
		</view>
		<u-toast ref="uToast"></u-toast>
		<u-overlay :show="loading">
			<view class="warp">
				<view class="rect"><u-button plain loading loadingText="加载中"></u-button></view>
			</view>
		</u-overlay>
	</view>
</template>

<script>
	import {
		isImageFormat
	} from "@/common/util.js"
	import BASE_URL from '@/config.js'
	import moment from "moment/moment"
	import * as $auth from "@/common/auth.js"
	import fileService from '@/api/file/fileService.js'
	import gwCirculationCard2Service from '@/api/circulation/gwCirculationCard2.js'
	export default {
		mounted() {
			gwCirculationCard2Service.getCardNum().then(data => {
				const currentYear = new Date().getFullYear();
				this.inputForm.yearNum = currentYear
				this.cardNum = data
				this.inputForm.cardNum = "[" + currentYear + "]" + data + "号"
				this.inputForm.writtenTime = moment().format('YYYY-MM-DD');
				this.inputForm.receivingTime = moment().format('YYYY-MM-DD');
			})
		},
		data() {
			return {
				imgsrc: {},
				loading: false,
				isreceive: false,
				iswrite: false,
				fileLists: [],
				fileList: [],
				imgList: [],
				cardNum: "",
				inputForm: {
					id: '',
					yearNum: '',
					cardNum: '',
					sendingAgency: '',
					docFontSize: '',
					fileSource: '',
					writtenTime: '',
					receivingTime: '',
					contentSummary: '',
					attachedDocumentId: '',
					remark: '',
					state: '1'
				},
				rules: {
					sendingAgency: [{
						required: true,
						message: '请输入来问机关',
						trigger: ['blur', 'change']
					}],
					contentSummary: [{
						required: true,
						message: '请输入内容摘要',
						trigger: ['blur', 'change']
					}]
				}
			}
		},
		methods: {

			showToast(params) {
				this.loading = false
				this.$refs.uToast.show({
					...params,
					complete() {
						params.url && uni.redirectTo({
							url: params.url
						})
					}
				})
			},
			// 删除文件
			deleteFile(item) {
				let that = this
				uni.showModal({
					title: '提示',
					content: '确认删除该文件',
					success: function(res) {
						if (res.confirm) {
							that.fileLists = that.fileLists.filter(i => !(i.url == item.url))
							that.fileList = that.fileList.filter(i => !(i.url == item.url))
						} else if (res.cancel) {
							console.log('用户点击取消');
						}
					}
				});

			},
			// 删除图片
			deletePic(event) {
				this[`imgList${event.name}`].splice(event.index, 1)
				this[`fileLists${event.name}`].splice(event.index, 1)
			},
			// 图片压缩
			compressH5(urlData, targetSizeKB, initialQuality = 1.0) {
				const maxQuality = 1.0;
				const minQuality = 0.0;
				const tolerance = 0.01; // 根据需要调整公差
				let that = this
				return new Promise((resolve, reject) => {
					let binarySearch = (min, max) => {
						const midQuality = (min + max) / 2;
						uni.getImageInfo({
							src: urlData.url,
							success(res) {
								let img = new Image()
								img.src = res.path
								img.onload = function() {
									const canvas = document.createElement('canvas');
									const ctx = canvas.getContext('2d');

									canvas.width = img.width;
									canvas.height = img.height;

									ctx.clearRect(0, 0, canvas.width, canvas.height);
									ctx.drawImage(img, 0, 0, canvas.width, canvas.height);

									// 使用异步的 toBlob 方法
									canvas.toBlob(async (blob) => {
										const fileSizeKB = blob.size / 1024;
										if (Math.abs(fileSizeKB - targetSizeKB) <
											tolerance || max - min < tolerance) {
											// 当前质量足够接近目标大小，使用当前质量解析
											const dataUrl = canvas.toDataURL(urlData.type, midQuality);
											let result = that
												.uploadFilePromise(dataUrl)
											setTimeout(() => {
												resolve(
													result)
											}, 1000)

										} else if (fileSizeKB > targetSizeKB) {
											// 如果文件大小太大，降低质量，继续二分查找
											binarySearch(min, midQuality);
										} else {
											// 如果文件大小太小，增加质量，继续二分查找
											binarySearch(midQuality, max);
										}
									}, urlData.type, midQuality);
								};
							},
							fail() {
								uni.showModal({
									title: '提示',
									content: '图片压缩失败',
									showCancel: false
								});
							}
						})
					}
					// 开始二分查找
					binarySearch(minQuality, maxQuality);
				})
			},
			// 新增图片
			async afterRead(event) {
				uni.showLoading({
					title: "上传中"
				})
				// 当设置 multiple 为 true 时, file 为数组格式，否则为对象格式
				let lists = [].concat(event.file)
				let fileListLen = this.fileLists.length
				lists.map((item) => {
					this.fileLists.push({
						...item,
						status: 'uploading',
						message: '上传中'
					})
				})
				for (let i = 0; i < lists.length; i++) {
					let result = ""
					if (isImageFormat(lists[i].name)) {
						if (lists[i].size > (200 * 1024)) {
							result = await this.compressH5(lists[i], 150);
						} else {
							result = await this.uploadFilePromise(lists[i].url)
						}
						let item1 = {
							url: BASE_URL + result
						}
						this.imgList.push(item1)

					} else {
						result = await this.uploadFilePromise(lists[i].url)
						const fileName = result.split(/[/\\=]/).pop();
						let a = {
							name: fileName,
							url: BASE_URL + result
						}
						this.fileList.push(a)
					}
					let item = this.fileLists[fileListLen]
					this.fileLists.splice(fileListLen, 1, Object.assign(item, {
						status: 'success',
						message: '',
						url: result
					}))
					fileListLen++
				}
				uni.hideLoading()
			},
			async uploadFilePromise(param) {
				return new Promise((resolve, reject) => {

					let a = uni.uploadFile({
						url: this.BASE_URL + '/gwfile/upload?uploadPath=filtransmit',
						filePath: param,
						name: 'file',
						header: {
							"token": $auth.getUserToken()
						},
						success: (res) => {
							setTimeout(() => {
								resolve(res.data)
							}, 1000)
						}
					})
				});
			},
			// 下载文件
			download(param) {

				fileService.download(param).then(data)
			},

			// 表单提交
			formSubmit() {
				this.loading = true
				let auditForm =  Object.assign({}, this.inputForm);
				let files = []
				this.fileLists.forEach(item => {
					files.push(item.url)
				})
				auditForm.attachedDocumentId = files.join(",");
				auditForm.writtenTime = auditForm.writtenTime + " 00:00:00";
				auditForm.receivingTime = auditForm.receivingTime + " 00:00:00";
				auditForm.cardNum = this.cardNum
				this.$refs.inputForm.validate().then(valid => {
					if (valid) {
						gwCirculationCard2Service.save(auditForm).then((data) => {

							let param = {
								type: 'success',
								message: data,
								iconUrl: 'https://cdn.uviewui.com/uview/demo/toast/success.png',
								url: "/pages/index/index"
							}
							this.showToast(param);
						}).catch(() => {
							let param = {
								type: 'error',
								message: data,
								iconUrl: 'https://cdn.uviewui.com/uview/demo/toast/error.png',
							}
							this.showToast(param);
						})
					}
				}).catch(e => {
					this.loading = false
				})

			}

		}
	}
</script>

<style>
	.warp {
		display: flex;
		align-items: center;
		justify-content: center;
		height: 100%;
	}

	.default_title {
		padding-top: 0px;
	}

	.main_info {
		margin-top: 15px;
	}
	.u-form-item__body__right__message span{
		font-size: 12px!important;
	}
	.submit_btn {
		background-color: #fefefe;
		margin-top: 20px;
		box-shadow: none;
		margin-bottom: 20px;
	}

	.submit_btn button {
		height: 40px;
		width: 80%;
		border-radius: 30px;

	}

	.addfile {
		width: 80px;
		height: 80px;
		background-color: #eee;
		padding-left: 30%;
		/* padding-left: 18%; */
		margin: 10px;
	}

	.other_info {
		width: 100%;
	}
</style>