// ==UserScript==
// @name         订阅帖子（前台）
// @storageName  Su.订阅帖子
// @version      0.1.0
// @description  在楼主的帖子里添加订阅按钮
// @author       Su.
// @match        https://bbs.tampermonkey.net.cn/*
// @grant        unsafeWindow
// @grant        GM_notification
// @grant        GM_setValue
// @grant        GM_getValue
// @grant        GM_deleteValue
// ==/UserScript==
let tid
if(location.href.indexOf('forum.php?mod=viewthread&tid=')!==-1){tid=document.querySelector("#k_collect").href.split('tid=')[1];dingyue()}
else if(location.href.indexOf('thread-')!==-1){tid=location.href.split('-')[1];dingyue()}
function dingyue(){
	document.querySelector("#p_btn > a.sharep > i > img").src='data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAYAAAAf8/9hAAAAAXNSR0IArs4c6QAAASlJREFUOE+lkkFOwkAUhv+/GNdT5QAcQEyPoIt2a29gvUFXyE6WsCs3qDdgTUxaT2AjHsADQJm1xj4zhSZgig3lrWbezPvm/f884sTgsfUyVw49nVV1LQB2BvCNXv5gICWgP1wGENzvdUM8L8bdeDcniVL4wR3EiiGY0svDEnA9WH0KJBSro6uCj7GdVmtJVA/f1hOIACKvIBwIZ/TyYAN4XMn75LJWjtEMMgE4pZuPtvsUZ9Ljrdb/AraXZxDxK+M2OSi6uuywAWAMk4ie3vPCFF4N1zdG5kGAvCgfBUf01k7dV1eyDwPmFzFYZHR11A5gOuggNUa1AjRNaKOEowD9wTItxxOobfcvTIgeIPZi0vVLE51wrYrzImx6dffc+rKiLLI3g3RK/ALqQp4RGbtohAAAAABJRU5ErkJggg=='
	let newa=document.createElement('a')
    let 是否订阅=GM_getValue(tid)
	document.querySelector("#p_btn").appendChild(newa)
    if(是否订阅==null){
	    newa.outerHTML="<a href=\"javascript:void(0)\" id=\"k_attention\" title=\"订阅该贴\"><i><img src=\"https://bbs.tampermonkey.net.cn/template/comiis_mi/img/oshr.png\">订阅</img></i></a>"
        document.querySelector('a[id="k_attention"]').addEventListener('click',mid(1))
    }
    else {
        GM_setValue("已订阅"+tid,'回复数'+document.querySelector('#postlist > div.bm_h.comiis_snvbt > span.y.comiis_hfs').innerText.split('\n')[0])
    	newa.outerHTML="<a href=\"javascript:void(0)\" id=\"k_attentioned\" title=\"取消订阅\"><i><img src=\"https://bbs.tampermonkey.net.cn/template/comiis_mi/img/oshr.png\">取消订阅</img></i></a>"
        document.querySelector('a[id="k_attentioned"]').addEventListener('click',mid(2)) 
    }
}
function mid(d){
    return ()=>{
        if(d==1){GMs(d)}
        else {GMs(d)}
    }
}
function GMs(d){
    let tit,tex
    if(d==1){
        tit='已订阅',tex='后台会监测该贴回复数';
        GM_setValue("已订阅"+tid,'回复数'+document.querySelector('#postlist > div.bm_h.comiis_snvbt > span.y.comiis_hfs').innerText.split('\n')[0])
        GM_setValue(tid,location.href)
    }
    else {
        tit='已取消订阅',tex='不再监测该贴回复数';
        if(GM_getValue(tid)){
            GM_deleteValue("已订阅"+tid);
            GM_deleteValue(tid)
        }
    }
    GM_notification({
            title:tit,
            text:tex,
            timeout:4000,
    });
    location.reload()
}