import Crypto from './crypto.js';
import './hmac.js';
import './sha1.js';
import Util from '@/libs/util'
import {Base64} from './base64.js';

let date=new Date()
date=date.setHours(date.getHours() + 1)
let extime=""+new Date(date).toISOString()
var policyText = {
	"expiration": extime, //设置该Policy的失效时间，超过这个失效时间之后，就没有办法通过这个policy上传文件了
	"conditions": [
		["content-length-range", 0, 1024*1024*100] // 设置上传文件的大小限制 
	]
};	
var config={
	accessid:'LTAI4FzqQHnk4rozqLZ8jCNj',
	accesskey:'mveW7B1OyFoKUkHm8WsxmrjHmkJWHq',
	osshost:'https://huoran.oss-cn-shenzhen.aliyuncs.com',
	policyBase64:Base64.encode(JSON.stringify(policyText))
}
var message = config.policyBase64;
var bytes = Crypto.HMAC(Crypto.SHA1, message, config.accesskey, { asBytes: true }) ;
var signature = Crypto.util.bytesToBase64(bytes);
var timetamp = new Date().getTime();
function random_string(len) {
　　len = len || 32;
　　var chars = 'ABCDEFGHJKMNPQRSTWXYZabcdefhijkmnprstwxyz2345678';   
　　var maxPos = chars.length;
　　var pwd = '';
　　for (let i = 0; i < len; i++) {
	　　pwd += chars.charAt(Math.floor(Math.random() * maxPos));
	}
	return pwd;
}
var OSS={
	name:'aliyun',
	host:config.osshost,
	accessid:config.accessid,
	signature:signature,
	policyBase64:config.policyBase64,
}
export default function(tempFilePaths, callback) {
	const ext = Util.getFileExt(tempFilePaths)
	const fileName = Date.now() + '.' + ext
	uni.uploadFile({
　　		url: OSS.host,
　　		filePath: tempFilePaths,
		fileType: '',
		name: 'file',
		formData: {
		name: fileName,
		key: fileName,//文件名
　		policy: OSS.policyBase64, // 输入你获取的的policy
		OSSAccessKeyId: OSS.accessid, // 输入你的AccessKeyId
		success_action_status: '200', // 让服务端返回200,不然，默认会返回204
		signature: OSS.signature, // 输入你获取的的signature
	},
	success: (res) => {
		callback({
			name: fileName,
			url: OSS.host + '/' + fileName,
			ext
		})
	},
	fail: (res) => {
		console.log(res);
	}
})
};