// I'm not a React developer. Be advised! 
// If you are, and want to rewrite this the "right way", go ahead and do it :)
// This is plain Javascript and only requires basic calls to implement customizations


// Do simple XHR requests to the API on Mastodon
//  make sure you control errors correctly, as a Mastodon Server might not setup CORS correctly
function mastodon_get(path, payload, callbk)  { return mastodon_request('GET',  path, payload, callbk); }
function mastodon_post(path, payload, callbk) { return mastodon_request('POST', path, payload, callbk); }
function mastodon_request(method, path, payload, callbk) {
    payload = payload || null;
    var instance = JSON.parse(localStorage.store_currentInstance);
    var token    = JSON.parse(localStorage.store_loggedInInstances)[instance].access_token;
    var url      = 'https://'+instance+path;

    var oReq = new XMLHttpRequest();
    oReq.addEventListener("load", function() { callbk(this.responseText); });
    oReq.open(method, url);
    oReq.setRequestHeader('Authorization', 'Bearer '+token);
    oReq.send(payload);
}

function api_status_fav(dom, status_id) {
    var dislike = false;
    var path = `/api/v1/statuses/${status_id}/favourite`;
    if (dom.getAttribute('data-liked') === "1") {
        path = `/api/v1/statuses/${status_id}/unfavourite`;
        dislike = true;
    }
    mastodon_post(path, {}, function(data) {
        // to-do: check "data" if the POST succeded (for now we expect it did xD)
        if (!dislike) {
            $(dom).addClass('liked-msg');
            $(dom).attr('data-liked', 1);
            dom.style.animation = "spin2 .5s linear 1";
        } else {
            $(dom).removeClass('liked-msg');
            $(dom).attr('aria-label', '0 '+$(dom).attr('aria-label'));
            $(dom).removeAttr('data-liked');
            dom.style.animation = undefined;
        }
    });
}


// this is our URL-based customizations made by JavaScript
var intervalChatCssChange = null;
function fedilove_customization() {
    document.querySelector('.main-content').classList = "main-content";
    document.querySelector('#chat-compose-global').style = 'visibility: collapse';

    if (window.location.pathname.startsWith('/statuses/'))
    {
        // this is ugly enough, so we will use CSS for the rest xD
        $('div.main-content').addClass('chat');

        // show the chat message compose bottom layer
        document.querySelector('#chat-compose-global').style = '';

        // add some animations
        var style = document.createElement('style');
        style.innerHTML = '@keyframes spin2 { 100% { transform:rotate(-360deg); } }';
        document.body.appendChild(style);

        // this function changes the css class on articles (messages)
        //  that match the given account_id
        var makeMessageUIModifications = function(account_id) {
            if (intervalChatCssChange !== null) return;
            var theint = 150;
            setInterval(function()
            {
                intervalChatCssChange = this;

                // paint MY messages as mine
                $('div.main-content.chat article.status-article').each(function(i) {
                    if ($(this).find('a.status-author-name').attr('href').endsWith(`/accounts/${account_id}`)) {
                        $(this).addClass('mymsg');
                        theint = 250;
                    }
                });

                // paint LIKES
                $('a.status-favs-reblogs.status-favs').each(function(i) {
                    // easy, aria-label contains the times this status was fav
                    //  so, we use this as the input source to search for "0",
                    //  if no "0" found in text, we mark element as liked so we can apply styles and "undo like" function
                    if ($(this).attr('aria-label').search(/0/) == -1) {
                        $(this).addClass('liked-msg');
                        $(this).attr('data-liked', 1);
                    }
                });

            }, theint);
        };

        // get the userAccountId to check against the href /account/NUM on the messages
        //  so we can apply different style to my messages
        if (localStorage.store_userAccountId === undefined) {
            mastodon_get('/api/v1/accounts/verify_credentials', {}, function(data) {
                var json = JSON.parse(data);
                if (json !== undefined) {
                    localStorage.store_userAccountId = json.id;
                    makeMessageUIModifications(json.id);
                }
            });
        } else {
            makeMessageUIModifications(localStorage.store_userAccountId);
        }
    }
}

// we inject this script.js into the React framework at timelines.js
// Watch for URL changes every 1/2 seconds (this is efficient, don't worry about it!)
//  and dispatch a call to "fedilove_customization" to load page customizations depending on URL context
var theurl = null;
setInterval(function() {
    var newurl = window.location.pathname;
    if (newurl != theurl) {
        fedilove_customization();
        theurl = newurl;
    }
}, 250);