import config from './config'

export default {
	isHttp(path) {
		return path.startsWith('http') || path.startsWith('https')
	},
	escapeHTML(a) {
		a = "" + a;  
		return a.replace(/&/g, "&amp;").replace(/</g, "&lt;").replace(/>/g, "&gt;").replace(/"/g, "&quot;").replace(/'/g, "&apos;")
	},  
	/** 
	 * @function unescapeHTML 还原html脚本 < > & " ' 
	 * @param a - 字符串 
	 */  
	unescapeHTML(a){  
		a = "" + a;  
		return a.replace(/&lt;/g, "<").replace(/&gt;/g, ">").replace(/&amp;/g, "&").replace(/&quot;/g, '"').replace(/&apos;/g, "'")
	},
	uuid(len = 16) {
		const chars = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz'.split('')
		const uuid = []
	
		if (len) {
			// 如果指定uuid长度,只是取随机的字符,0|x为位运算,能去掉x的小数位,返回整数位
			for (let i = 0; i < len; i++) uuid[i] = chars[0 | Math.random() * chars.length]
		} else {
			let r
			// rfc4122标准要求返回的uuid中,某些位为固定的字符
			uuid[8] = uuid[13] = uuid[18] = uuid[23] = '-'
			uuid[14] = '4'
	
			for (let i = 0; i < 36; i++) {
				if (!uuid[i]) {
					r = 0 | Math.random() * 16
					uuid[i] = chars[(i == 19) ? (r & 0x3) | 0x8 : r]
				}
			}
		}
		
		return uuid.join('')
	},
	upload(data) {
		return uni.uploadFile({
			url: this.isHttp(data.url) ? data.url : config.apiBaseUrl + data.url,
			name: data.name || 'file',
			formData: {
				...data.formData,
				token: uni.getStorageSync('token')
			},
			header: data.header || {},
			filePath: data.filePath
		}).then(res => {
			return JSON.parse(res)
		})
	},
	uploadCloud(data) {
		return uniCloud.uploadFile(data).then(res => {
			return res
		})
	},
	chooseAndUpload(methods, chooseParam, uploadParam, isCloud) {
		const uploadArr = []
		return this[methods](chooseParam).then(file => {
			file.filePaths.forEach((filePath, index) => {
				if (isCloud) {
					const fileArr = filePath.split('.')
					// 只在h5可用
					const fileType = file.tempFiles[index].type || 'image/png'
					const suffix = fileArr.length >= 2 ? fileArr[fileArr.length - 1] : fileType.split('/')[1]
					
					uploadArr.push(this.uploadCloud({
						filePath,
						cloudPath: this.uuid() + '.' + suffix,
						fileType: (methods === 'chooseImage' ? 'image/' : 'video/') + suffix
					}).then(res => {
						if (res.success) {
							return {
								filePath: res.fileID
							}
						} else {
							uni.showToast({
								title: res.msg,
								icon: 'none'
							})
						}
					}))
				} else{
					uploadArr.push(this.upload({
						...uploadParam,
						filePath
					}).then(res => {
						if (res.code === 200 || res.success) {
							return res.data
						} else {
							uni.showToast({
								title: res.msg,
								icon: 'none'
							})
						}
					}))
				}
			})
			uni.showLoading({
				title: '上传中...'
			})
			return Promise.all(uploadArr).then(res => {
				uni.hideLoading()
				return res.filter(item => item)
			})
		})
	},
	chooseImage(data) {
		return uni.chooseImage({
			count: 1,
			...data
		}).then(res => {
			console.log(res);
			return {
				filePaths: res.tempFilePaths,
				tempFiles: res.tempFiles
			}
		})
	},
	chooseAndUploadImage(chooseParam, uploadParam, isCloud) {
		return this.chooseAndUpload('chooseImage',chooseParam, uploadParam, isCloud)
	},
	chooseVideo(data) {
		return uni.chooseVideo({
			...data
		}).then(res => {
			return {
				filePaths: [res.tempFilePath],
				tempFiles: [res.tempFile]
			}
		})
	},
	chooseAndUploadVideo(chooseParam, uploadParam, isCloud) {
		return this.chooseAndUpload('chooseVideo',chooseParam, uploadParam, isCloud)
	},
}