/**
 * New Mail Notifier plugin script
 *
 * @author Aleksander Machniak <alec@alec.pl>
 *
 * @licstart  The following is the entire license notice for the
 * JavaScript code in this file.
 *
 * Copyright (c) The Roundcube Dev Team
 *
 * The JavaScript code in this page is free software: you can redistribute it
 * and/or modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation, either version 3 of
 * the License, or (at your option) any later version.
 *
 * @licend  The above is the entire license notice
 * for the JavaScript code in this file.
 */

if (window.rcmail && rcmail.env.task == 'mail') {
    rcmail.addEventListener('plugin.newmail_notifier', newmail_notifier_run)
        .addEventListener('actionbefore', newmail_notifier_stop)
        .addEventListener('init', function () {
            // bind to messages list select event, so favicon will be reverted on message preview too
            if (rcmail.message_list) {
                rcmail.message_list.addEventListener('select', newmail_notifier_stop);
            }
        });
}

// Executes notification methods
function newmail_notifier_run(prop) {
    if (prop.basic) {
        newmail_notifier_basic();
    }
    if (prop.sound) {
        newmail_notifier_sound();
    }
    if (prop.desktop) {
        newmail_notifier_desktop(rcmail.get_label('body', 'newmail_notifier'));
    }
}

// Stops notification
function newmail_notifier_stop(prop) {
    // revert original favicon
    if (rcmail.env.favicon_href && rcmail.env.favicon_changed && (!prop || prop.action != 'check-recent')) {
        $('<link rel="shortcut icon" href="' + rcmail.env.favicon_href + '"/>').replaceAll('link[rel="shortcut icon"]');
        rcmail.env.favicon_changed = 0;
    }

    // Remove IE icon overlay if we're pinned to Taskbar
    try {
        if (window.external.msIsSiteMode()) {
            window.external.msSiteModeClearIconOverlay();
        }
    } catch (e) {}
}

// Basic notification: window.focus and favicon change
function newmail_notifier_basic() {
    var w = rcmail.is_framed() ? window.parent : window,
        path = rcmail.assets_path('plugins/newmail_notifier');

    w.focus();

    // we cannot simply change a href attribute, we must to replace the link element (at least in FF)
    var link = $('<link rel="shortcut icon">').attr('href', path + '/favicon.ico'),
        oldlink = $('link[rel="shortcut icon"]', w.document);

    if (!rcmail.env.favicon_href) {
        rcmail.env.favicon_href = oldlink.attr('href');
    }

    rcmail.env.favicon_changed = 1;
    link.replaceAll(oldlink);

    // Add IE icon overlay if we're pinned to Taskbar
    try {
        if (window.external.msIsSiteMode()) {
            window.external.msSiteModeSetIconOverlay(path + '/overlay.ico', rcmail.get_label('title', 'newmail_notifier'));
        }
    } catch (e) {}
}

// Sound notification
function newmail_notifier_sound() {
    var src = rcmail.assets_path('plugins/newmail_notifier/sound');

    (new Audio(src + '.mp3')).play()
        .catch(function () {
            // fallback to the wav format
            (new Audio(src + '.wav')).play();
        });
}

// Desktop notification
// - Require window.Notification API support (Chrome 22+ or Firefox 22+)
function newmail_notifier_desktop(body, disabled_callback) {
    var timeout = rcmail.env.newmail_notifier_timeout || 10,
        icon = rcmail.assets_path('plugins/newmail_notifier/mail.png'),
        success_callback = function () {
            var popup = new window.Notification(rcmail.get_label('title', 'newmail_notifier'), {
                dir: 'auto',
                lang: '',
                body: body,
                tag: 'newmail_notifier',
                icon: icon,
            });
            popup.onclick = function () {
                if (window.parent) {
                    window.parent.focus();
                }
                this.close();
            };
            setTimeout(function () {
                popup.close();
            }, timeout * 1000);
        };

    try {
        window.Notification.requestPermission(function (perm) {
            if (perm == 'granted') {
                success_callback();
            } else if (perm == 'denied' && disabled_callback) {
                disabled_callback();
            }
        });

        return true;
    } catch (e) {
        return false;
    }
}

function newmail_notifier_test_desktop() {
    var status = newmail_notifier_desktop(rcmail.get_label('testbody', 'newmail_notifier'), function () {
        rcmail.display_message(rcmail.get_label('desktopdisabled', 'newmail_notifier'), 'error');
    });

    if (!status) {
        rcmail.display_message(rcmail.get_label('desktopunsupported', 'newmail_notifier'), 'error');
    }
}

function newmail_notifier_test_basic() {
    newmail_notifier_basic();
}

function newmail_notifier_test_sound() {
    newmail_notifier_sound();
}
