User:Guywan/Scripts/FileMoverHelper.js

// [[Category:Wikipedia scripts]]
//
// Authors: [[User:Guywan]]
//			[[User:BrandonXLF]]
//			[[User:SD0001]]
//
// <nowiki>
$.when($.ready, mw.loader.using(['mediawiki.util', 'mediawiki.api', 'mediawiki.user'])).then(() =>
{
    if(mw.config.get("wgCanonicalNamespace") != "File") return;
	
    // Add portlet link.
    $("#p-cactions ul").append("<li id='ca-fmh'><a href='#' title='Rename this file and redirect all links to the new name'>FMH</a></li>");
    $("#ca-fmh").on("click", () =>
    {
        var api = new mw.Api();
        
        var source = mw.config.get("wgPageName");
        var file = new RegExp('[' + source.charAt(5).toUpperCase() + source.charAt(5).toLowerCase() + ']' + mw.util.escapeRegExp(source.slice(6)).replace(/[ _]/g,'[ _]'), "g");
        
        var pages = [];
        var handle = null;  // setInterval() handle.
        
        // (1) Get destination.
        var template = false;
        var destination = "";
        if($(".media-move-suggestion a"))
        {
            destination = $(".media-move-suggestion a")[0].innerText;
            template = true;
        }
        
        destination = prompt("Please enter the destination of this move (e.g. 'File:Wiki.png'). Leave empty to cancel:", destination);
        
        if(!destination || !destination.startsWith("File:")) return;
        
        var destinationName = destination.substr(5);
        
        var reason = prompt("Please enter a reason for this move:", "More suitable name");
        
        // (2) Move the page.
        api.post(
        {
            "action": "move",
            "from": source,
            "to": destination,
            "reason": reason,
            "movetalk": true,
            "token": mw.user.tokens.get("csrfToken")
        })
        .fail(result => { mw.notify("Failed to move file!", {type: "error"}); })
        .done(() =>
        {
            // Replace page content with reporting area.
            $(".mw-parser-output")[0].innerHTML = "<div id='fmh-reports'></div>";
            
            var reports = document.getElementById("fmh-reports");
            reports.insertAdjacentHTML("afterend", `<p style='color:green'>Moved ${source} to ${destination}</p>`);
            
            if(template)
            {
                // (3) Remove {{Rename media}} template from destination.
                api.post(
                {
                    "action": "edit",
                    "title": destination,
                    "text": getWikitext(destination).replace(/\{\{[Rr]ename media\|.*?\}\}/, ""),
                    "summary": "Removed rename media template",
                    "token": mw.user.tokens.get("csrfToken")
                })
                .fail(() =>
                {
                    reports.insertAdjacentHTML("afterbegin", `<p style='color:red'>Failed to remove template from ${destination}</p>`);
                })
                .done(() =>
                {
                    reports.insertAdjacentHTML("afterbegin", `<p style='color:green'>Template removed from ${destination}</p>`);
                });
            }
            
            // (4) Get a list of pages.
            getImageUsage(source, false);
        });
        
        function getImageUsage(filename, iucontinue)
        {
            api.get(
            {
                "action": "query",
                "list": "imageusage",
                "iutitle": filename,
                "iulimit": "max",
                "iucontinue": iucontinue,
            })
            .fail(result => { mw.notify("Failed to retrieve links to this file!", {type: "error"}); })
            .done(data =>
            {
                // Extend pages with more pages!
                pages = pages.concat(data.query.imageusage);
                
                if(data.continue)
                {
                    // There are more pages to get ...
                    getImageUsage(filename, data.continue.iucontinue);
                }
                else
                {
                    // (5) Get edit rate limit.
                    var editrate = 90 / 60;  // Default edit rate, incase the query fails.
                    api.get(
                    {
                        "action": "query",
                        "meta": "userinfo",
                        "uiprop": "ratelimits"
                    })
                    .done(data =>
                    {
                    	if(data.query.userinfo.ratelimits.edit)
                    	{
                        	editrate = data.query.userinfo.ratelimits.edit.user.hits / data.query.userinfo.ratelimits.edit.user.seconds;
                    	}
                    	else
                    	{
                    		// Make edits as fast as possible.
                    		editrate = 100;
                    	}
                    })
                    .then(() =>
                    {
                        // (6) Redirect file links.
                        handle = setInterval(redirectFileLinks, 1000 / editrate);
                    });
                }
            });
        }
        
        function redirectFileLinks()
        {
        	var reports = document.getElementById("fmh-reports");
            var page = pages.pop();
            if(page)
            {
                api.post(
                {
                    "action": "edit",
                    "title": page.title,
                    "text": getWikitext(page.title).replace(file, destinationName),
                    "summary": "Redirecting file links to new file name",
                    "token": mw.user.tokens.get("csrfToken")
                })
                .done(() =>
                {
                    reports.insertAdjacentHTML("afterend", `<p style='color:green'>Finished redirecting links in <a href='/wiki/${page.title}'>${page.title}</a> ...</p>`);
                })
                .fail(() =>
                {
                    reports.insertAdjacentHTML("afterend", `<p style='color:red'>Failed to redirect links in ${page.title} ...</p>`);
                });
            }
            else
            {
                clearInterval(handle);
                reports.insertAdjacentHTML("afterend", "<p style='color:green;font-size:1.5em'>Operation completed! You may refresh or leave this page</p>");
            }
        }

        function getWikitext(page)
        {
            return $.ajax(
            {
                url: mw.util.getUrl(page) + "?action=raw",
                dataType: "text",
                async: false
            }).responseText;
        }
    });
});
// </nowiki>