// ==UserScript==
// @name         Etherscan Contract Downloader
// @namespace    http://tampermonkey.net/
// @version      0.1.1
// @description  batch download etherscan verified contract
// @author       jason@trillion.fi
// @match        https://etherscan.io/address/*
// @match        https://ftmscan.com/address/*
// @match        https://bscscan.com/address/*
// @match        https://snowtrace.io/address/*
// @icon         https://etherscan.io/images/brandassets/etherscan-logo-circle.png
// @grant        unsafeWindow
// @license      MIT
// @downloadURL none
// ==/UserScript==



(function() {
    'use strict';

    // Your code here...
    let editorIds = $("[id^=editor]")
    let spans = $("span[class=text-secondary]")

    console.log(`found ${editorIds.length-1} editors`);


    function getAddr() {
        const regex = /0x[0-9A-Fa-f]{40}/g;
        const found = window.location.href.match(regex);
        return found[0]
    }

    function downloadEditor(index) {
        let addr = getAddr()
        let editor = ace.edit(editorIds[index])
        let filename;
        try {
            filename = spans[index].innerText.split(":")[1].trim()
        } catch {
            filename = `${addr}.sol`
        }
        console.log(filename)
        let HTMLhiddenElement = document.createElement("a");
        HTMLhiddenElement.href = 'data:attachment/text,' + encodeURIComponent(editor.getValue());
        HTMLhiddenElement.target = '_blank';
        HTMLhiddenElement.download = `${addr}-${filename}`;
        HTMLhiddenElement.click();
    }

    function downloadAll() {
        if (editorIds.length == 1) {
            downloadEditor(0)
            return
        }
        for (let i=0;i<editorIds.length-1;i++) {
            downloadEditor(i)
        }
    }

    if(!unsafeWindow.downloadAll)
    {
        unsafeWindow.downloadAll = downloadAll;
    }

    $("#nav_subtabs").append('<li><a class="nav-link show" href="#download" data-toggle="tab" onclick="javascript:downloadAll();"><span>Download</span></a></li>');
    //
})();