// Roster iCalendar
// version 0.5
// 21-11-2017
// Copyright (c) 2011, Moraine Didier
// Released under the GPL license
// http://www.gnu.org/copyleft/gpl.html
//
// --------------------------------------------------------------------
//
// This is a Greasemonkey user script.  To install it, you need
// Greasemonkey 0.3 or later: http://greasemonkey.mozdev.org/
// Then restart Firefox and revisit this script.
// Under Tools, there will be a new menu item to "Install User Script".
// Accept the default configuration and install.
//
// Required script:
//      parser.user.js
//
// To uninstall, go to Tools/Manage User Scripts,
// select "Roster iCalendar", and click Uninstall.
//
// --------------------------------------------------------------------
// Changelog
// V0.5
//    Changes for Greasemonkey 4
// V0.4
//    Replace button by greasemonkey User Script Command
// V0.3
//    Adaptation for Greasemonkey
// V0.2
//    Fix for new CWP design (04/2009)
// V0.1 Beta
//    Initial release
//
// --------------------------------------------------------------------
// ==UserScript==
// @name          Roster iCalendar
// @description   Script creating an iCalendar file based on the TNT Roster.
// @include       *CWP_WA/CWP_RosterTW.aspx?EMPNO=*
// @require       parser.user.js
// @require       https://greasemonkey.github.io/gm4-polyfill/gm4-polyfill.js
// @grant         GM_registerMenuCommand
// @grant         GM_getValue
// @grant         GM_setValue
// ==/UserScript==

// --------------------------------------------------------------------
// Get objects or variable from the Global object of Greasemonkey
// --------------------------------------------------------------------
var addButton = unsafeWindow.addButton;
var roster = unsafeWindow.roster;

if (typeof(roster) == 'undefined') {
    alert("Installation Error:\nThe script 'parser.user.js' is required by 'Roster iCalendar'.");
    return;
}

// --------------------------------------------------------------------
// Create "iCal" button
// --------------------------------------------------------------------
addButton(
    'iCalendar',
    'iCal',
    function(event) {
         try {
            roster.parse();
            roster.turnAroundTime();
            //iCal.checkAlarmConfig();
            iCal.create(roster);
            iCal.popup();
        } catch (e) {
            //unsafeWindow.console.log(e)
        } finally {
            event.preventDefault();
        }
    }
)


// --------------------------------------------------------------------
// VEvent object representing a VEVENT entry in an iCalendar file
// --------------------------------------------------------------------
function VEvent(activity) {
    // documentation
    // http://www.kanzaki.com/docs/ical/
    this.dtstart = activity.std.getiCalTime();
    if (activity.checkin != '') {
        this.dtstart = activity.checkin.getiCalTime();
    } else {
        this.dtstart = activity.std.getiCalTime();
    }

    this.dtend = activity.sta.getiCalTime();
    if (typeof activity.checkout === "object")
        this.dtend = activity.checkout.getiCalTime();

    this.summary = this.createSummary(activity);
    this.description = this.createDescription(activity);
    this.location = activity.departure;
    this.categories = (roster.isActivityFlight(activity)) ? "Flight" : "";
    this.uid = this.createUID(activity);
    //this.valarm = new VAlarm(activity);
    //this.attendee= [];
}

VEvent.prototype = {

    // [activity.std]-[activity-name]@tay.be
    createUID: function(activity) {
        return activity.std + "-" + activity.name + "@tay.be"
    },

    createDescription: function(activity) {
        if (! roster.isActivityFlight(activity)) return "";

        var desc = "";

        // 00:00 |
        if (activity.checkin != '')
            desc += activity.checkin.getTime() + 'Z | ';

        // LGG 00:00 | CIA 00:00
        desc +=  activity.departure + ' ' + activity.std.getTime() + 'Z | ';
        desc +=  activity.arrival + ' ' + activity.sta.getTime() + 'Z';

        // | 00:00
        if (typeof activity.checkout === "object") {
            desc += ' | ' + activity.checkout.getTime() + 'Z\\n';
        } else {
            desc += '\\n';
        }

        // Turn-around: 00:00
        if (activity.turnaround != null)
            desc += 'Turn-around: ' + activity.turnaround + '\\n';

        // Crew: xxxxx(CP)
        desc += 'Crew: ' + activity.crew + '\\n';

        // Note:
        if (activity.note.length > 4)
            desc += 'Note: ' + activity.note + '\\n';

        // Duty design: Z
        if (activity.duty != "")
            desc += 'Duty design: ' + activity.duty + '\\n';

        // Import date
        desc += 'Event imported ' + new Date();

        return desc;
    },

    createSummary: function(activity) {
        if (! roster.isActivityFlight(activity)) return activity.name;
        return activity.name + ': ' + activity.departure + ' ' + activity.arrival
    },

    // January 19, 1998, at 0700 UTC --> 19980119T070000Z
    __dtstamp: function() {
        var now = new Date();
        var dt = now.getUTCFullYear() + '';
        dt += this.__format(now.getUTCMonth() + 1);
        dt += this.__format(now.getUTCDate());
        dt += 'T';
        dt += this.__format(now.getUTCHours());
        dt += this.__format(now.getUTCMinutes());
        dt += this.__format(now.getUTCSeconds());
        dt += 'Z';

        return dt;
    },

    __format: function(num) {
        if (num.toString().length == 1) {
            return "0".concat(num)
        } else {
            return num
        }
    },

    toString: function() {
        var evt = "BEGIN:VEVENT\n";
        evt += "DTSTAMP:" + this.__dtstamp() + '\n';
        evt += "UID:" + this.uid + '\n';
        evt += "DTSTART:" + this.dtstart + '\n';
        evt += "DTEND:" + this.dtend + '\n';
        evt += "SUMMARY:" + this.summary + '\n';
        evt += "DESCRIPTION:" + this.description + '\n';
        evt += "LOCATION:" + this.location + '\n';
        evt += "CATEGORIES:" + this.categories + '\n';
        //evt += this.valarm.toString();
        evt += "END:VEVENT\n";
        return evt
    }
}

// --------------------------------------------------------------------
// VAlarm object representing a VALARM entry in an iCalendar file
// --------------------------------------------------------------------
//function VAlarm(activity) {
//    this.isFlight = this.isActivityFlight(activity);
//    this.trigger = this.getTrigger(activity.checkin, activity.departure);
//}
//
//VAlarm.prototype = {
//    getTrigger: function(checkin, dep) {
//        if (checkin == null)
//            return;
//
//        // ex: rosterscripts.valarm.LGG.checkin.trigger = 60
//        return GM_getValue("valarm." + dep + ".checkin.trigger", null);
//    },
//
    // Test if an activity is a flight
    // (activity name length > 3)
    // ex: TAY123 vs SBB
    // or starts with 3V
//    isActivityFlight: function(activity) {
//        return (activity.name.match(/3V*/));
//    },
//
//    toString: function() {
//        if (!GM_getValue("valarm.enable", false) || this.trigger == null || !this.isFlight)
//            return "";
//
//        var txt = "BEGIN:VALARM\n";
//        txt += "TRIGGER:-PT" + this.trigger + "M\n";
//        txt += "ACTION:AUDIO\n";
//        txt += "END:VALARM\n";
//        return txt;
//    }
//}

// --------------------------------------------------------------------
// iCalendar object
// --------------------------------------------------------------------
var iCal = {

    ical: null,

    header: "BEGIN:VCALENDAR\n" +
            "VERSION:2.0\n" +
            "PRODID:-//hacksw/handcal//NONSGML v1.0//EN\n" +
            "METHOD:PUBLISH\n",

    footer: "END:VCALENDAR",

    // Create the iCal text
    create: function(roster) {
        this.ical = this.header;
        for (activity of roster.activities) {
            this.ical += new VEvent(activity).toString();
        }
        this.ical += this.footer;
        return this.ical;
    },

    // Open a popup window and allow the user to download the iCal text
    popup: function() {
        var popup = unsafeWindow.open('','','width=500,height=160,dialog,modal');
        dom = popup.document;
        dom.body.innerHTML = '<p style="font-family: Verdana; font-size: 12px;">';
        dom.body.innerHTML += 'Right click on the link and save it on your hard disk:<br>';
        dom.body.innerHTML += '<a href="data:text/calendar;charset=utf-8,' + encodeURI(this.ical) + '">Roster.ics</a>';
        dom.body.innerHTML += '<br/><br/>';
        dom.body.innerHTML += 'You can now import this <a href="http://en.wikipedia.org/wiki/ICalendar">iCalendar</a> file into your favorite calendar application (Outlook, Evolution, Lotus Note, Google Calendar, ...)<br/><br/>';
        dom.body.innerHTML += '<small>Automatic alarms are ';
        dom.body.innerHTML += GM_getValue("valarm.enable", false) ? 'enabled' : 'disabled';
        dom.body.innerHTML += '.</small>';
        dom.body.innerHTML += '</p>';
        //dom.close();
    },

    // Check alarm configuration in about:config
    //checkAlarmConfig: function() {
    //    if (!GM_getValue("valarm.enable", false))
    //        GM_setValue("valarm.enable", false);
    //},
}
// vim: set et ts=4 sw=4: