//==== 微信签名功能 ====
import Req from './jun_httpInstall' // http 请求
import appId from '../config/appid' // appid

// js SHA
(function(D){function p(b,e,c){var a=0,d=[0],f="",g=null,f=c||"UTF8";if("UTF8"!==f&&"UTF16"!==f)throw"encoding must be UTF8 or UTF16";if("HEX"===e){if(0!==b.length%2)throw"srcString of HEX type must be in byte increments";g=v(b);a=g.binLen;d=g.value}else if("TEXT"===e)g=w(b,f),a=g.binLen,d=g.value;else if("B64"===e)g=x(b),a=g.binLen,d=g.value;else if("BYTES"===e)g=y(b),a=g.binLen,d=g.value;else throw"inputFormat must be HEX, TEXT, B64, or BYTES";this.getHash=function(b,f,c,e){var g=null,h=d.slice(),l=a,n;3===arguments.length?"number"!==typeof c&&(e=c,c=1):2===arguments.length&&(c=1);if(c!==parseInt(c,10)||1>c)throw"numRounds must a integer >= 1";switch(f){case "HEX":g=z;break;case "B64":g=A;break;case "BYTES":g=B;break;default:throw"format must be HEX, B64, or BYTES";}if("SHA-1"===b)for(n=0;n<c;n+=1)h=s(h,l),l=160;else throw"Chosen SHA variant is not supported";return g(h,C(e))};this.getHMAC=function(c,b,e,g,q){var h,l,n,r,p=[],t=[];h=null;switch(g){case "HEX":g=z;break;case "B64":g=A;break;case "BYTES":g=B;break;default:throw"outputFormat must be HEX, B64, or BYTES";}if("SHA-1"===e)l=64,r=160;else throw"Chosen SHA variant is not supported";if("HEX"===b)h=v(c),n=h.binLen,h=h.value;else if("TEXT"===b)h=w(c,f),n=h.binLen,h=h.value;else if("B64"===b)h=x(c),n=h.binLen,h=h.value;else if("BYTES"===b)h=y(c),n=h.binLen,h=h.value;else throw"inputFormat must be HEX, TEXT, B64, or BYTES";c=8*l;b=l/4-1;if(l<n/8){if("SHA-1"===e)h=s(h,n);else throw"Unexpected error in HMAC implementation";h[b]&=4294967040}else l>n/8&&(h[b]&=4294967040);for(l=0;l<=b;l+=1)p[l]=h[l]^909522486,t[l]=h[l]^1549556828;if("SHA-1"===e)e=s(t.concat(s(p.concat(d),c+a)),c+r);else throw"Unexpected error in HMAC implementation";return g(e,C(q))}}function w(b,e){var c=[],a,d=[],f=0,g;if("UTF8"===e)for(g=0;g<b.length;g+=1)for(a=b.charCodeAt(g),d=[],128>a?d.push(a):2048>a?(d.push(192|a>>>6),d.push(128|a&63)):55296>a||57344<=a?d.push(224|a>>>12,128|a>>>6&63,128|a&63):(g+=1,a=65536+((a&1023)<<10|b.charCodeAt(g)&1023),d.push(240|a>>>18,128|a>>>12&63,128|a>>>6&63,128|a&63)),a=0;a<d.length;a+=1)(f>>>2)+1>c.length&&c.push(0),c[f>>>2]|=d[a]<<24-f%4*8,f+=1;else if("UTF16"===e)for(g=0;g<b.length;g+=1)(f>>>2)+1>c.length&&c.push(0),c[f>>>2]|=b.charCodeAt(g)<<16-f%4*8,f+=2;return{value:c,binLen:8*f}}function v(b){var e=[],c=b.length,a,d;if(0!==c%2)throw"String of HEX type must be in byte increments";for(a=0;a<c;a+=2){d=parseInt(b.substr(a,2),16);if(isNaN(d))throw"String of HEX type contains invalid characters";e[a>>>3]|=d<<24-a%8*4}return{value:e,binLen:4*c}}function y(b){var e=[],c,a;for(a=0;a<b.length;a+=1)c=b.charCodeAt(a),(a>>>2)+1>e.length&&e.push(0),e[a>>>2]|=c<<24-a%4*8;return{value:e,binLen:8*b.length}}function x(b){var e=[],c=0,a,d,f,g,m;if(-1===b.search(/^[a-zA-Z0-9=+\/]+$/))throw"Invalid character in base-64 string";a=b.indexOf("=");b=b.replace(/\=/g,"");if(-1!==a&&a<b.length)throw"Invalid '=' found in base-64 string";for(d=0;d<b.length;d+=4){m=b.substr(d,4);for(f=g=0;f<m.length;f+=1)a="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/".indexOf(m[f]),g|=a<<18-6*f;for(f=0;f<m.length-1;f+=1)e[c>>2]|=(g>>>16-8*f&255)<<24-c%4*8,c+=1}return{value:e,binLen:8*c}}function z(b,e){var c="",a=4*b.length,d,f;for(d=0;d<a;d+=1)f=b[d>>>2]>>>8*(3-d%4),c+="0123456789abcdef".charAt(f>>>4&15)+"0123456789abcdef".charAt(f&15);return e.outputUpper?c.toUpperCase():c}function A(b,e){var c="",a=4*b.length,d,f,g;for(d=0;d<a;d+=3)for(g=(b[d>>>2]>>>8*(3-d%4)&255)<<16|(b[d+1>>>2]>>>8*(3-(d+1)%4)&255)<<8|b[d+2>>>2]>>>8*(3-(d+2)%4)&255,f=0;4>f;f+=1)c=8*d+6*f<=32*b.length?c+"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/".charAt(g>>>6*(3-f)&63):c+e.b64Pad;return c}function B(b){var e="",c=4*b.length,a,d;for(a=0;a<c;a+=1)d=b[a>>>2]>>>8*(3-a%4)&255,e+=String.fromCharCode(d);return e}function C(b){var e={outputUpper:!1,b64Pad:"="};try{b.hasOwnProperty("outputUpper")&&(e.outputUpper=b.outputUpper),b.hasOwnProperty("b64Pad")&&(e.b64Pad=b.b64Pad)}catch(c){}if("boolean"!==typeof e.outputUpper)throw"Invalid outputUpper formatting option";if("string"!==typeof e.b64Pad)throw"Invalid b64Pad formatting option";return e}function q(b,e){return b<<e|b>>>32-e}function r(b,e){var c=(b&65535)+(e&65535);return((b>>>16)+(e>>>16)+(c>>>16)&65535)<<16|c&65535}function t(b,e,c,a,d){var f=(b&65535)+(e&65535)+(c&65535)+(a&65535)+(d&65535);return((b>>>16)+(e>>>16)+(c>>>16)+(a>>>16)+(d>>>16)+(f>>>16)&65535)<<16|f&65535}function s(b,e){var c=[],a,d,f,g,m,p,u,k,s,h=[1732584193,4023233417,2562383102,271733878,3285377520];b[e>>>5]|=128<<24-e%32;b[(e+65>>>9<<4)+15]=e;s=b.length;for(u=0;u<s;u+=16){a=h[0];d=h[1];f=h[2];g=h[3];m=h[4];for(k=0;80>k;k+=1)c[k]=16>k?b[k+u]:q(c[k-3]^c[k-8]^c[k-14]^c[k-16],1),p=20>k?t(q(a,5),d&f^~d&g,m,1518500249,c[k]):40>k?t(q(a,5),d^f^g,m,1859775393,c[k]):60>k?t(q(a,5),d&f^d&g^f&g,m,2400959708,c[k]):t(q(a,5),d^f^g,m,3395469782,c[k]),m=g,g=f,f=q(d,30),d=a,a=p;h[0]=r(a,h[0]);h[1]=r(d,h[1]);h[2]=r(f,h[2]);h[3]=r(g,h[3]);h[4]=r(m,h[4])}return h}/*"function"===typeof define&&define.amd?define(function(){return p}):"undefined"!==typeof exports?"undefined"!==typeof module&&module.exports?module.exports=exports=p:exports=p:D.jsSHA=p*/D.jsSHA=p})(window);

// 随机数
function GetRndCode(a,b){a=a||6;var d="";b=b||new Array(0,1,2,3,4,5,6,7,8,9);for(var c=0;c<a;c++){var e=Math.floor(Math.random()*10);d+=b[e]}return d};

var wxConfig = {
	debug: false,
	appId: appId,
	timestamp: 0,
	nonceStr: "",
	signature: "",
	jsApiList: ['onMenuShareTimeline','onMenuShareAppMessage','closeWindow','previewImage','updateAppMessageShareData','updateTimelineShareData']
};

// 保存js_ticket 到sessionStorage
function getJsTicket(cb){
	var hasSes = !!window.sessionStorage;
	var jsapi_ticket = window.sessionStorage.getItem('jsapi_ticket') || '';

	if( hasSes && jsapi_ticket ){
		// sessionStorage.setItem('jsapi_ticket', jsapi_ticket);
		typeof cb==='function' && cb();
	}else{
		refreshTicket(cb)
	}
}

// 刷新ticket
function refreshTicket(cb){
	Req.http.post({
		url: 'weixin!ajaxGetJsTicket',
		udData: {nokey: true}
	}).then((res)=>{
		// jssdk
		console.log(res)
		var ticket = res.inf.ticket
		sessionStorage.setItem('jsapi_ticket', ticket);
		sessionStorage.setItem('shareImg', res.inf.shareImg);
		sessionStorage.setItem('shareTitle', res.inf.shareTitle);
		sessionStorage.setItem('shareDesc', res.inf.shareDesc);
		typeof cb === 'function' && cb();
	})
}
var times = 0
// 微信签名
function sign(){
	times += 1
	var timestamp = ((new Date()).getTime()+'').substr(0,10),
		nonceStr = GetRndCode(8)+'',
		// url = encodeURIComponent(location.href.split('#')[0]),
		url = location.href.split('#')[0],
		jsapi_ticket = window.sessionStorage.getItem('jsapi_ticket'),
		str = "jsapi_ticket="+jsapi_ticket+"&noncestr="+nonceStr+"&timestamp="+timestamp+"&url="+url,
		signature = new jsSHA(str,"TEXT").getHash("SHA-1","HEX");

	wxConfig.timestamp = timestamp;
	wxConfig.nonceStr  = nonceStr;
	wxConfig.signature = signature;

	console.log(str)

	wx.config(wxConfig);
	wx.error(function(res){
		console.log(res)
		if(refreshTicket && times<2){
			refreshTicket(sign);
		}else{
			// alert(res.errMsg);
		}
	});
}

// 主函数
function main(callback){
	var isWx = /micromessenger/.test(navigator.userAgent.toLowerCase());
	// https去掉
	//  && /^https/.test(location.href)
	if(isWx){
		getJsTicket(function(){
			sign()
		})
	}
}

export default {
	main
}