# vim: set foldmethod=marker foldmarker={{{,}}} :

var TcasItemClass = {
# get data from AI and multiplayers {{{
    new : func(canvasGroup, index) {
        var m = {parents : [TcasItemClass]};
        m._group = canvasGroup.createChild("group", "TcasItem_" ~ index);

        canvas.parsesvg(m._group, data.zkv1000_reldir ~ "Systems/tcas.svg");
        m._can = {
            Alt : [
                m._group.getElementById("Alt_above").setVisible(0),
                m._group.getElementById("Alt_below").setVisible(0)
            ],
            Arrow : [
                m._group.getElementById("Arrow_climb").setVisible(0),
                m._group.getElementById("Arrow_descent").setVisible(0)
            ]
        };
        m._can.ThreadLevel = [];

        for (var i=0; i<4; i+=1)
            append(m._can.ThreadLevel,
                    m._group.getElementById("Thread_Level_" ~ i).setVisible(0));

        m._colors = [ '#00ffff', '#00ffff', '#ff7f2a', '#ff0000' ];

        return m;
    },

    setData : func(lat, lon, alt, vs, level) {
        me._group.setVisible(1);
        me._group.setGeoPosition(lat, lon);
        
        if (alt == 0) {
            me._can.Alt[0].setVisible(0);
            me._can.Alt[1].setVisible(0);
        }
        else {
            me._can.Alt[alt < 0]
                .setText(sprintf("%+i", alt))
                .set('fill', me._colors[level])
                .setVisible(1);

            me._can.Alt[alt > 0].setVisible(0);
        }
                
        if (vs >= -3 and vs <= 3) {
            me._can.Arrow[0].setVisible(0);
            me._can.Arrow[1].setVisible(0);
        }
        else {
            me._can.Arrow[vs < -3]
                .set('fill', me._colors[level])
                .set('stroke', me._colors[level])
                .setVisible(1);

            me._can.Arrow[vs > 3].setVisible(0);
        }
        
        me._can.ThreadLevel[0].setVisible(level == 0);
        me._can.ThreadLevel[1].setVisible(level == 1);
        me._can.ThreadLevel[2].setVisible(level == 2);
        me._can.ThreadLevel[3].setVisible(level == 3);
        me._group.set("z-index", level + 1);
    },
};
# }}} 

var MapTcas = {
# init TCAS layer and update {{{
    new : func(device, group) {
        var m = {parents:[MapTcas]}; 
        if (getprop('/instrumentation/tcas/serviceable') == nil) {
            m.update = func;
            m.setVisible = func;
        }
        else {
            m.device = device;
            m.visibility = 0;
            m.group = group.createChild('map', 'tcas')
                .setTranslation(
                    m.device.role == 'MFD' ? (m.device.data.mapview[0] + m.device.data.mapclip.left)/2 : 120,
                    m.device.role == 'MFD' ? 400 : 600)
                .setVisible(m.visibility);
            m._item      = [];
            m._itemIndex = 0;
            m._itemCount = 0;
# /instrumentation/tcas/inputs/mode
            m.MODE      = ["Normal","Above","Unlimited","Below"];
        }
        return m;
    },

    update : func() {
        if (me.device.data.tcas == 0)
            return;
        me.group._node.getNode('ref-lat', 1).setDoubleValue(data.lat);
        me.group._node.getNode('ref-lon', 1).setDoubleValue(data.lon);
        me.group._node
            .getNode('range', 1).setDoubleValue(me.device.data['range-factor']);
        me._itemIndex = 0;
        foreach (var ac; data.tcas) {
            if (me._itemIndex >= me._itemCount) {
                append(me._item, TcasItemClass.new(me.group, me._itemIndex));
                me._itemCount += 1;
            }
            me._item[me._itemIndex].setData(ac.lat, ac.lon, ac.alt, ac.vs, ac.level);
            me._itemIndex += 1;
        }
                
        for (; me._itemIndex < me._itemCount; me._itemIndex += 1) {
            me._item[me._itemIndex]._group.setVisible(0);
        }
    },

    setVisible : func (v) {
        me.group.setVisible(v);
    },
};
# }}}