function getArchiveCounter(current) {
    var url = "https://en.wikipedia.org/w/api.php?action=query&titles=" + mw.config.get('wgPageName') + "/Archive_" + current + "&format=json&formatversion=2"
    var cont = true
    $.ajax({
	     async: false,
	     type: 'GET',
	     url: url,
	     success: function(data) {
	            if (data.query.pages["0"].missing) {
	                cont = false
	            }
	        }
	});
	if(cont){
		return getArchiveCounter(current+1)
	}
    return current>1 ? current-1 : current
}

function addAutoArchive(talkheader, archives, age) {
    age = age ? "|age=" + age : "";
    talkHeader = document.editform.wpTextbox1.value.toLowerCase().indexOf("talk header") === -1 &&
        talkheader === "true" ? "yes" : "no";
    archives = talkHeader === "no" && archives === "true" ? "yes" : "no";
    if ((document.editform.wpTextbox1.value.indexOf("User:MiszaBot/config") === -1 && document.editform.wpTextbox1.value.indexOf("User:ClueBot III/ArchiveThis") === -1) ||
        confirm("It looks like this page is already being automatically archived. Are you sure you want to continue?")) {
        var content = document.editform.wpTextbox1.value;
        contents = [content.substr(0, content.indexOf('==')), content.substr(content.indexOf('=='))];
        document.editform.wpTextbox1.value = (contents[0] + "{{subst:" + "Setup auto archiving|small=yes|notice=yes|counter=" + getArchiveCounter(1) + "|talk=" + talkHeader + "|archives=" + archives + age + "}}\n\n" + contents[1])
            .replace(/{{archiveme}}|{{longtalk}}|{{long talk}}|{{Tpcleanup}}/ig, '');
        document.editform.wpSummary.value = "Set up automatic archiving using [[User:Anne drew Andrew and Drew/SetupAutoArchive|SetupAutoArchive.js]]";
        document.getElementById('wpSave').click();
    } else window.history.back();
}

function showModal() {
    var actionrequired = "";
    while (actionrequired.toLowerCase() !== "yes" && actionrequired.toLowerCase() !== "no") {
        actionrequired = prompt("Is there already a {{talk header}} on the page? (yes/no)");
    }
    actionrequired = actionrequired === "no";
    if (actionrequired) {
        var talkheader = "";
        while (talkheader.toLowerCase() !== "yes" && talkheader.toLowerCase() !== "no") {
            talkheader = prompt("Prepend standard {{talk header}} to page? (yes/no)");
        }
        talkheader = talkheader === "yes";
        var archives = "";
        if (!talkheader) {
            while (archives.toLowerCase() !== "yes" && archives.toLowerCase() !== "no") {
                archives = prompt("Prepend {{archives}} index template to page instead? (yes/no)");
            }
            archives = archives === "yes";
        } else archives = false;
    } else {
        talkheader = false;
        archives = false;
    }
    var age;
    while (age === undefined || (!(/[0-9]*/.test(age)) && age !== "")) {
        age = prompt("How many days should a thread be inactive before archiving?")
    }
    age = age ? "&age=" + age : "";
    var editLink = window.location.protocol + "//" + window.location.host + "/w/index.php?title=" +
        encodeURIComponent(mw.config.get('wgPageName')) + "&action=edit&setupArchive=" + Date.now() +
        "&talkheader=" + talkheader + "&archives=" + archives + age;
    window.location.href = editLink;
}

jQuery(document).ready(function($) {
  if (["talk", "wikipedia"].some(function (str) {
    return mw.config.get('wgCanonicalNamespace').toLowerCase().indexOf(str) > -1
  })) {
    if (document.editform) {
            var params = new URLSearchParams(window.location.search);
            var shouldContinue = params.get("setupArchive");
            if (shouldContinue) {
                shouldContinue = Date.now() - shouldContinue < 10000;
                if (shouldContinue) {
                    var talkheader = params.get("talkheader");
                    var archives = params.get("archives");
                    var age = params.get("age");
                    addAutoArchive(talkheader, archives, age);
                } else {
                    throw "Operation timed out. [SetupAutoArchive.js]";
                }
            }
        } else {
            mw.util.addPortletLink("p-cactions", "javascript:showModal()", "Setup Archive", "autoArchive", "Add auto archiving", "");
        }
    }
});