//
// Native Instruments Traktor Kontrol F1 HID controller script v0.9
// Copyright (C) 2012, Ilkka Tuohela
// For Mixxx version 1.11.x
//

// Native Instruments Traktor Kontrol F1 HID interface specification
function KontrolF1Controller() {
    this.controller = new HIDController();

    // Initialized to firmware version by version response packet
    this.version_major = undefined;
    this.version_minor = undefined;
    this.controller.activeDeck = 1;

    // F1 PAD LEDs are special, it has full RGB control with three bytes,
    // we can't use normal LEDColors directly. Define here some basic
    // colors, allow using full RGB values with script

    this.buttonNames = [
        "sync", "quant", "capture", "shift",
        "reverse", "type", "size", "browse",
        "play_1_1", "play_1_2", "play_2_1", "play_2_2",
        "play_3_1", "play_3_2", "play_4_1", "play_4_2"
    ];

    this.registerInputPackets = function() {
        var packet = new HIDPacket("control", 0x1);
        packet.addControl("hid", "grid_8", 1,"I", 0x1);
        packet.addControl("hid", "grid_7", 1,"I", 0x2);
        packet.addControl("hid", "grid_6", 1,"I", 0x4);
        packet.addControl("hid", "grid_5", 1,"I", 0x8);
        packet.addControl("hid", "grid_4", 1,"I", 0x10);
        packet.addControl("hid", "grid_3", 1,"I", 0x20);
        packet.addControl("hid", "grid_2", 1,"I", 0x40);
        packet.addControl("hid", "grid_1", 1,"I", 0x80);
        packet.addControl("hid", "grid_16", 1,"I", 0x100);
        packet.addControl("hid", "grid_15", 1,"I", 0x200);
        packet.addControl("hid", "grid_14", 1,"I", 0x400);
        packet.addControl("hid", "grid_13", 1,"I", 0x800);
        packet.addControl("hid", "grid_12", 1,"I", 0x1000);
        packet.addControl("hid", "grid_11", 1,"I", 0x2000);
        packet.addControl("hid", "grid_10", 1,"I", 0x4000);
        packet.addControl("hid", "grid_9", 1,"I", 0x8000);
        packet.addControl("hid", "shift", 1,"I", 0x800000);
        packet.addControl("hid", "reverse", 1,"I", 0x400000);
        packet.addControl("hid", "size", 1,"I", 0x100000);
        packet.addControl("hid", "type", 1,"I", 0x200000);
        packet.addControl("hid", "select_push", 1,"I", 0x40000);
        packet.addControl("hid", "browse", 1,"I", 0x80000);
        packet.addControl("hid", "play_1", 1,"I", 0x80000000);
        packet.addControl("hid", "play_2", 1,"I", 0x40000000);
        packet.addControl("hid", "play_3", 1,"I", 0x20000000);
        packet.addControl("hid", "play_4", 1,"I", 0x10000000);
        packet.addControl("hid", "sync", 1,"I", 0x8000000);
        packet.addControl("hid", "quant", 1,"I", 0x4000000);
        packet.addControl("hid", "capture", 1,"I", 0x2000000);
        packet.addControl("hid", "select_encoder", 5,"B", undefined,true);

        // Knobs have value range 0-4092, so while some controls are
        // -1..0..1 range, hidparser will return same data as with h
        // packing (16 bit range while we only use 12 bits)
        packet.addControl("hid", "knob_1", 6,"H");
        packet.addControl("hid", "knob_2", 8,"H");
        packet.addControl("hid", "knob_3", 10,"H");
        packet.addControl("hid", "knob_4", 12,"H");
        packet.addControl("hid", "fader_1", 14,"H");
        packet.addControl("hid", "fader_2", 16,"H");
        packet.addControl("hid", "fader_3", 18,"H");
        packet.addControl("hid", "fader_4", 20,"H");
        this.controller.registerInputPacket(packet);

    }

    this.registerOutputPackets = function() {
        var packet = new HIDPacket("lights", 0x80);
        // Right 7-segment element - 0x0 off, 0x40 on
        packet.addControl("hid", "right_segment_dp", 1,"B");
        packet.addControl("hid", "right_segment_1", 2,"B");
        packet.addControl("hid", "right_segment_2", 3,"B");
        packet.addControl("hid", "right_segment_3", 4,"B");
        packet.addControl("hid", "right_segment_4", 5,"B");
        packet.addControl("hid", "right_segment_5", 6,"B");
        packet.addControl("hid", "right_segment_6", 7,"B");
        packet.addControl("hid", "right_segment_7", 8,"B");

        // Left 7-segment element - 0x0 off, 0x40 on
        packet.addControl("hid", "left_segment_dp", 9,"B");
        packet.addControl("hid", "left_segment_1", 10,"B");
        packet.addControl("hid", "left_segment_2", 11,"B");
        packet.addControl("hid", "left_segment_3", 12,"B");
        packet.addControl("hid", "left_segment_4", 13,"B");
        packet.addControl("hid", "left_segment_5", 14,"B");
        packet.addControl("hid", "left_segment_6", 15,"B");
        packet.addControl("hid", "left_segment_7", 16,"B");

        // Button led brightness, 0-0xff
        packet.addControl("hid", "browse_brightness", 17,"B");
        packet.addControl("hid", "size_brightness", 18,"B");
        packet.addControl("hid", "type_brightness", 19,"B");
        packet.addControl("hid", "reverse_brightness", 20,"B");
        packet.addControl("hid", "shift_brightness", 21,"B");
        packet.addControl("hid", "capture_brightness", 22,"B");
        packet.addControl("hid", "quant_brightness", 23,"B");
        packet.addControl("hid", "sync_brightness", 24,"B");

        // Pad RGB color button controls, 3 bytes per pad
        packet.addControl("hid", "grid_1_blue", 25,"B")
        packet.addControl("hid", "grid_1_red", 26,"B")
        packet.addControl("hid", "grid_1_green", 27,"B")
        packet.addControl("hid", "grid_2_blue", 28,"B")
        packet.addControl("hid", "grid_2_red", 29,"B")
        packet.addControl("hid", "grid_2_green", 30,"B")
        packet.addControl("hid", "grid_3_blue", 31,"B")
        packet.addControl("hid", "grid_3_red", 32,"B")
        packet.addControl("hid", "grid_3_green", 33,"B")
        packet.addControl("hid", "grid_4_blue", 34,"B")
        packet.addControl("hid", "grid_4_red", 35,"B")
        packet.addControl("hid", "grid_4_green", 36,"B")
        packet.addControl("hid", "grid_5_blue", 37,"B")
        packet.addControl("hid", "grid_5_red", 38,"B")
        packet.addControl("hid", "grid_5_green", 39,"B")
        packet.addControl("hid", "grid_6_blue", 40,"B")
        packet.addControl("hid", "grid_6_red", 41,"B")
        packet.addControl("hid", "grid_6_green", 42,"B")
        packet.addControl("hid", "grid_7_blue", 43,"B")
        packet.addControl("hid", "grid_7_red", 44,"B")
        packet.addControl("hid", "grid_7_green", 45,"B")
        packet.addControl("hid", "grid_8_blue", 46,"B")
        packet.addControl("hid", "grid_8_red", 47,"B")
        packet.addControl("hid", "grid_8_green", 48,"B")
        packet.addControl("hid", "grid_9_blue", 49,"B")
        packet.addControl("hid", "grid_9_red", 50,"B")
        packet.addControl("hid", "grid_9_green", 51,"B")
        packet.addControl("hid", "grid_10_blue", 52,"B")
        packet.addControl("hid", "grid_10_red", 53,"B")
        packet.addControl("hid", "grid_10_green", 54,"B")
        packet.addControl("hid", "grid_11_blue", 55,"B")
        packet.addControl("hid", "grid_11_red", 56,"B")
        packet.addControl("hid", "grid_11_green", 57,"B")
        packet.addControl("hid", "grid_12_blue", 58,"B")
        packet.addControl("hid", "grid_12_red", 59,"B")
        packet.addControl("hid", "grid_12_green", 60,"B")
        packet.addControl("hid", "grid_13_blue", 61,"B")
        packet.addControl("hid", "grid_13_red", 62,"B")
        packet.addControl("hid", "grid_13_green", 63,"B")
        packet.addControl("hid", "grid_14_blue", 64,"B")
        packet.addControl("hid", "grid_14_red", 65,"B")
        packet.addControl("hid", "grid_14_green", 66,"B")
        packet.addControl("hid", "grid_15_blue", 67,"B")
        packet.addControl("hid", "grid_15_red", 68,"B")
        packet.addControl("hid", "grid_15_green", 69,"B")
        packet.addControl("hid", "grid_16_blue", 70,"B")
        packet.addControl("hid", "grid_16_red", 71,"B")
        packet.addControl("hid", "grid_16_green", 72,"B")

        // Play key brightness control, 0-0xff
        packet.addControl("hid", "play_4_1_brightness", 73,"B");
        packet.addControl("hid", "play_4_2_brightness", 74,"B");
        packet.addControl("hid", "play_3_1_brightness", 75,"B");
        packet.addControl("hid", "play_3_2_brightness", 76,"B");
        packet.addControl("hid", "play_2_1_brightness", 77,"B");
        packet.addControl("hid", "play_2_2_brightness", 78,"B");
        packet.addControl("hid", "play_1_1_brightness", 79,"B");
        packet.addControl("hid", "play_1_2_brightness", 80,"B");

        this.controller.registerOutputPacket(packet);

    }

    this.initializeHIDController = function() {
        this.scalers = {};
        this.scalers["volume"] = function(value) {
            return script.absoluteLin(value, 0, 1, 0, 4096);
        }
        this.scalers["pregain"] = function(value) {
            return script.absoluteNonLin(value,0,1,5,0,4096);
        }
        this.scalers["rate"] = function(value) {
            return script.absoluteLin(value,-1,1,0,4096);
        }
        this.scalers["ratereversed"] = function(value) {
            return -script.absoluteLin(value,-1,1,0,4096);
        }
        this.scalers["plusminus"] = function(value) {
            return script.absoluteLin(value,-1,1,0,4096);
        }
        this.scalers["eq"] = function(value) {
            return script.absoluteNonLin(value, 0, 1, 4, 0, 4096);
        }

        this.registerInputPackets();
        this.registerOutputPackets();
    }

    // Set brightness for single color buttons with brightness adjustment
    // Valid adjustment range is 0-0x7f
    this.setButtonBrightness = function(name, value) {
        var controller = this.controller;
        var packet = controller.getOutputPacket("lights");
        if (name.match(/grid_/)) {
            HIDDebug("ERROR: set PAD colors with setPADColor");
            return;
        }
        if (!name.match(/.*_brightness$/))
            name = name + "_brightness";
        var field = packet.getField("hid", name);
        if (field==undefined) {
            HIDDebug("button field not found: " + name);
            return;
        }
        if (value<0)
            value = 0;
        if (value>0x7f)
            value = 0x7f;
        field.value = value;
    }

    this.set7SegmentNumber = function(number) {
        var controller = this.controller;
        var packet = controller.getOutputPacket("lights");
        if (number != undefined) {
            left = KontrolF1.segments[Math.floor(number/10)];
            right = KontrolF1.segments[number % 10];
        } else {
            left = KontrolF1.segments['empty'];
            right = KontrolF1.segments['empty'];
        }

        for (var i=0;i<7;i++) {
            field = packet.getField("hid", "left_segment_"+(i+1));
            field.value = left[i];
            field = packet.getField("hid", "right_segment_"+(i+1));
            field.value = right[i];
        }
        HIDDebug("segments left " + left + " right "  + right);
    }

    // Set the 8 bytes in left or right 7-segment display. DP is the dot.
    this.set7SegmentValue = function(name, dp, v1, v2, v3, v4, v5, v6, v7) {
        var controller = this.controller;
        var packet = controller.getOutputPacket("lights");
        var field = undefined;
        field = packet.getField("hid", name+"_segment_dp");
        field.value = dp;
        field = packet.getField("hid", name+"_segment_1");
        field.value = v1;
        field = packet.getField("hid", name+"_segment_2");
        field.value = v2;
        field = packet.getField("hid", name+"_segment_3");
        field.value = v3;
        field = packet.getField("hid", name+"_segment_4");
        field.value = v4;
        field = packet.getField("hid", name+"_segment_5");
        field.value = v5;
        field = packet.getField("hid", name+"_segment_6");
        field.value = v6;
        field = packet.getField("hid", name+"_segment_7");
        field.value = v7;
    }

    // Set RGB color for one of the 16 pads.
    // Index is pad number index as 1-16.
    // Valid range for each color is 0-0x7f.
    this.setPADColor = function(index,red,green,blue) {
        var controller = this.controller;
        var packet = controller.getOutputPacket("lights");
        var field = undefined;
        if (index<=0 || index>16) {
            HIDDebug("Invalid grid index" + index);
            return;
        }
        if (red==undefined)
            red=0;
        if (red>0x7f)
            red=0x7f;
        field = packet.getField("hid", "grid_"+index+"_red");
        field.value = red;
        if (green==undefined)
            green=0;
        if (green>0x7f)
            green=0x7f;
        field = packet.getField("hid", "grid_"+index+"_green");
        field.value = green;
        if (blue==undefined)
            blue=0;
        if (blue>0x7f)
            blue=0x7f;
        field = packet.getField("hid", "grid_"+index+"_blue");
        field.value = blue;
    }

    // reset all lights to off state
    this.resetLEDs = function() {
        var controller = this.controller;
        var packet = controller.getOutputPacket("lights");
        for (var group_name in packet.groups) {
            var group = packet.groups[group_name];
            for (var field_name in group) {
                var field = group[field_name];
                field.value = 0;
            }
        }
        packet.send();
    }

    // Send update for LED packets after LED state modifications
    this.updateLEDs = function() {
        var packet = this.controller.getOutputPacket("lights");
        packet.send();
    }

}

KontrolF1 = new KontrolF1Controller();

KontrolF1.init = function (id) {
    KontrolF1.id = id;

    KontrolF1.controlModeButtons = { "decks": "capture",  "samplers": "quant" };
    KontrolF1.defaultControlMode = "decks";

    KontrolF1.initializeHIDController();
    var controller = KontrolF1.controller;
    controller.postProcessDelta = KontrolF1.ButtonLEDPressUpdate;

    KontrolF1.knobs = {};
    KontrolF1.faders = {};
    KontrolF1.grids = {};
    KontrolF1.playbuttons = {};
    KontrolF1.segments = {};

    KontrolF1.registerCallbacks();

    KontrolF1.resetLEDs();
    KontrolF1.setControlMode(KontrolF1.defaultControlMode);

    KontrolF1.segments['empty'] = [0,0,0,0,0,0,0];
    KontrolF1.segments[0] = [0x0,0x40,0x40,0x40,0x40,0x40,0x40];
    KontrolF1.segments[1] = [0x0,0x40,0x40,0x0,0x0,0x0,0x0];
    KontrolF1.segments[2] = [0x40,0x0,0x40,0x40,0,0x40,0x40];
    KontrolF1.segments[3] = [0x40,0x40,0x40,0x40,0,0x0,0x40];
    KontrolF1.segments[4] = [0x40,0x40,0x40,0x0,0x40,0x0,0x0];
    KontrolF1.segments[5] = [0x40,0x40,0x0,0x40,0x40,0x0,0x40];
    KontrolF1.segments[6] = [0x40,0x40,0x0,0x40,0x40,0x40,0x40];
    KontrolF1.segments[7] = [0x0,0x40,0x40,0x40,0x0,0x0,0x0];
    KontrolF1.segments[8] = [0x40,0x40,0x40,0x40,0x40,0x40,0x40];
    KontrolF1.segments[9] = [0x40,0x40,0x40,0x40,0x40,0x0,0x40];

    KontrolF1.testSegment = 0;
    KontrolF1.testUpdateInterval = 20;
    KontrolF1.testTimer = engine.beginTimer(
        KontrolF1.testUpdateInterval,
        "KontrolF1.testSegments()"
    );

    KontrolF1.updateLEDs();
    HIDDebug("NI Traktor F1 "+KontrolF1.id+" initialized");
}

KontrolF1.testSegments = function() {
    if (KontrolF1.testSegment < 100) {
        KontrolF1.set7SegmentNumber(KontrolF1.testSegment);
        KontrolF1.testSegment += 1;
    } else {
        engine.stopTimer(KontrolF1.testTimer);
        KontrolF1.set7SegmentNumber(undefined);
    }
    KontrolF1.updateLEDs();
}

// Device cleanup function
KontrolF1.shutdown = function() {
    if (KontrolF1.LEDTimer!=undefined) {
        engine.stopTimer(KontrolF1.LEDTimer);
        KontrolF1.LEDTimer = undefined;
    }

    KontrolF1.shutdownHardware(2);
    HIDDebug("NI Traktor F1 "+KontrolF1.id+" shut down");
}

// Mandatory default handler for incoming packets
KontrolF1.incomingData = function(data,length) {
    KontrolF1.controller.parsePacket(data,length);
}

// Mandatory LED update callback handler
KontrolF1.activeLEDUpdateWrapper = function() {
    KontrolF1.controller.updateActiveDeckLEDs();
}

// Handle button LED updates after packet receive if required:
// F1 will reset LEDs to a default state without this
// Registered as packet post processing callback in init.
KontrolF1.ButtonLEDPressUpdate = function(packet,changed_data) {
    var send_led_update = false;
    for (var field in changed_data) {
        var delta = changed_data[field];
        var name = field.split(".")[1]
        // Select encoder also resets LEDs for some reason
        if (field=="select_encoder") {
            send_led_update = true;
            break;
        }
        // Check if this is one of permanently lit LEDs
        var controlmode = false;
        for (mode in KontrolF1.controlModeButtons) {
            if (KontrolF1.controlModeButtons[mode]==name) {
                controlmode = true;
                break;
            }
        }
        if (controlmode) {
            send_led_update = true;
            break;
        }

        // Update leds if any of these buttons were modified in packet
        if (KontrolF1.buttonNames.indexOf(name)!=-1) {
            if (delta.value==1)
                KontrolF1.setButtonBrightness(name,0x7f);
            if (delta.value==0)
                KontrolF1.setButtonBrightness(name,0);
            send_led_update = true;
            break;
        }
        // Update leds if any of pads was pressed
        if (/grid_[0-9]/.test(name)) {
            send_led_update = true;
            break;
        }
    }
    if (send_led_update)
        KontrolF1.updateLEDs();
}

KontrolF1.disconnectModeLEDs = function(mode) {
    var grid = KontrolF1.grids[mode];
    var buttons = KontrolF1.playbuttons[mode];
    for (var name in grid) {
        var button = grid[name];
        if (button.ledname==undefined)
            continue
        engine.connectControl(button.group, button.ledname,
            KontrolF1.setLED, false
        );
    }
    for (var name in buttons) {
        var button = buttons[name];
        var button_index = parseInt(name.split("_")[1]);
        if (button.ledname==undefined)
            continue;
        engine.connectControl(button.group, button.ledname,
            KontrolF1.setLED, false
        );
    }
}

KontrolF1.connectModeLEDs = function(mode) {
    var grid = KontrolF1.grids[mode];
    var buttons = KontrolF1.playbuttons[mode];

    var color;
    for (var name in grid) {
        var button = grid[name];
        var button_index = parseInt(name.split("_")[1]);
        if (button.ledname==undefined)
            continue;
        engine.connectControl(button.group, button.ledname,
            KontrolF1.setLED
        );
        if (engine.getValue(button.group, button.ledname))
            value = button.ledcolor;
        else
            value = 0,0,0;
        KontrolF1.setPADColor(button_index,value[0],value[1],value[2]);
    }
    for (var name in buttons) {
        var button = buttons[name];
        var button_index = parseInt(name.split("_")[1]);
        if (button.ledname==undefined)
            continue;
        engine.connectControl(button.group, button.ledname,
            KontrolF1.setLED
        );
        value = (engine.getValue(button.group,button.name)==1) ? 0x7f :0;
        KontrolF1.setButtonBrightness("play_"+button_index+"_1", value);
        KontrolF1.setButtonBrightness("play_"+button_index+"_2", value);
    }
    KontrolF1.updateLEDs();
}

KontrolF1.setLED = function(value,group,key) {
    var grid = KontrolF1.grids[KontrolF1.controlMode];
    var buttons = KontrolF1.playbuttons[KontrolF1.controlMode];
    var matched = false;

    for (var name in grid) {
        var button = grid[name];
        var button_index = parseInt(name.split("_")[1]);
        if (button.group!=group || button.ledname!=key)
            continue;
        if (value)
            value = button.ledcolor;
        else
            value = 0,0,0;
        KontrolF1.setPADColor(button_index,value[0],value[1],value[2]);
        matched = true;
        break;
    }
    for (var name in buttons) {
        var button = buttons[name];
        var button_index = parseInt(name.split("_")[1]);
        if (button.group!=group || button.name!=key)
            continue;
        value = (value==1) ? 0x7f : 0;
        KontrolF1.setButtonBrightness("play_"+button_index+"_1", value);
        KontrolF1.setButtonBrightness("play_"+button_index+"_2", value);
        matched = true;
        break;
    }
    KontrolF1.updateLEDs();
}

KontrolF1.linkKnob = function(mode,knob,group,name,scaler) {
    if (!(mode in KontrolF1.knobs))
        KontrolF1.knobs[mode] = {};
    var mapping = {};
    mapping.mode = mode;
    mapping.knob = knob;
    mapping.group = group;
    mapping.name = name;
    mapping.scaler = scaler;
    KontrolF1.knobs[mode][knob] = mapping;
}

KontrolF1.knob = function(field) {
    var controller = KontrolF1.controller;
    var mode = KontrolF1.knobs[KontrolF1.controlMode];
    if (mode==undefined) {
        HIDDebug("Knob group not mapped in mode " + KontrolF1.controlMode);
        return;
    }
    var knob = mode[field.name];
    if (knob==undefined) {
        HIDDebug("Fader "+field.name+ " not mapped in " + KontrolF1.controlMode);
        return;
    }
    return KontrolF1.control(knob,field);
}

KontrolF1.linkFader = function(mode,fader,group,name,scaler,callback) {
    if (!(mode in KontrolF1.faders))
        KontrolF1.faders[mode] = {};
    var mapping = {};
    mapping.mode = mode;
    mapping.fader = fader;
    mapping.group = group;
    mapping.name = name;
    mapping.scaler = scaler;
    mapping.callback = callback;
    KontrolF1.faders[mode][fader] = mapping;
}

KontrolF1.fader = function(field) {
    var controller = KontrolF1.controller;
    var mode = KontrolF1.faders[KontrolF1.controlMode];
    if (mode==undefined) {
        HIDDebug("Fader group not mapped in mode " + KontrolF1.controlMode);
        return;
    }
    var fader = mode[field.name];
    if (fader==undefined) {
        HIDDebug("Fader "+field.name+ " not mapped in " + KontrolF1.controlMode);
        return;
    }
    return KontrolF1.control(fader,field);
}

KontrolF1.linkGrid = function(mode,button,group,name,toggle,callback,ledcolor,ledname) {
    if (!(mode in KontrolF1.grids))
        KontrolF1.grids[mode] = {};
    if (ledname==undefined) {
        if (name.match(/hotcue_[0-9]/))
            ledname = name + '_enabled';
        else
            ledname = name;
    }
    if (ledcolor==undefined) {
        ledcolor = [0x7f,0x7f,0x7f];
    }
    var mapping = {};
    mapping.mode = mode;
    mapping.button = button;
    mapping.group = group;
    mapping.name = name;
    mapping.toggle = toggle;
    mapping.ledname = ledname;
    mapping.ledcolor = ledcolor;
    mapping.callback = callback;
    KontrolF1.grids[mode][button] = mapping;
}

KontrolF1.grid = function(field) {
    var mode = KontrolF1.grids[KontrolF1.controlMode];
    if (mode==undefined) {
        HIDDebug("Grid button group not mapped in " + KontrolF1.controlMode);
        return;
    }
    var button = mode[field.name];
    if (button==undefined) {
        HIDDebug("Grid "+field.name+ " not mapped in " + KontrolF1.controlMode);
        return;
    }
    return KontrolF1.button(button,field);
}

KontrolF1.linkPlay = function(mode,button,group,name,toggle,callback,ledname) {
    if (!(mode in KontrolF1.playbuttons))
        KontrolF1.playbuttons[mode] = {};

    if (ledname==undefined) {
        if (name.match(/hotcue_[0-9]/))
            ledname = name + '_enabled';
        else
            ledname = name;
    }
    var mapping = {};
    mapping.mode = mode;
    mapping.button = button;
    mapping.group = group;
    mapping.name = name;
    mapping.toggle = toggle;
    mapping.ledname = ledname;
    mapping.callback = callback;
    KontrolF1.playbuttons[mode][button] = mapping;
}

KontrolF1.play = function(field) {
    var mode = KontrolF1.playbuttons[KontrolF1.controlMode];
    if (mode==undefined) {
        HIDDebug("Play button group not mapped in " + KontrolF1.controlMode);
        return;
    }
    var button = mode[field.name];
    if (button==undefined) {
        HIDDebug("Play button "+field.name+ " not mapped in " + KontrolF1.controlMode);
        return;
    }
    return KontrolF1.button(button,field);
}

KontrolF1.control = function(control,field) {
    if (control.callback!=undefined) {
        control.callback(control,field);
        return;
    }
    var scaler = KontrolF1.scalers[control.scaler];
    engine.setValue(control.group,control.name,scaler(field.value));
}

KontrolF1.button = function(button,field) {
    var controller = KontrolF1.controller;
    if (button.callback!=undefined) {
        button.callback(button,field);
        return;
    }
    if (button.toggle) {
        if (button.name=='play')
            controller.togglePlay(button.group,field);
        else
            controller.toggle(button.group,button.name,field.value);
    } else {
        var value = (field.value==1) ? true : false;
        engine.setValue(button.group,button.name,value);
    }
}

KontrolF1.switchControlMode = function(field) {
    if (field.name=='quant') {
        KontrolF1.setControlMode("samplers");
    } else if (field.name=='capture') {
        KontrolF1.setControlMode("decks");
    } else {
        HIDDebug("Unconfigured mode selector button: " + field.name);
    }
}

KontrolF1.setControlMode = function(mode) {
    if (mode==KontrolF1.controlMode)
        return;
    if (!(mode in KontrolF1.controlModeButtons)) {
        HIDDebug("Unconfigured control mode: " + mode);
        return;
    }

    if (KontrolF1.controlMode!=undefined) {
        KontrolF1.disconnectModeLEDs(KontrolF1.controlMode);
        KontrolF1.setButtonBrightness(
            KontrolF1.controlModeButtons[KontrolF1.controlMode],0
        );
    }
    KontrolF1.controlMode = mode;
    led = KontrolF1.controlModeButtons[mode];
    KontrolF1.connectModeLEDs(KontrolF1.controlMode);
    KontrolF1.setButtonBrightness(
        KontrolF1.controlModeButtons[KontrolF1.controlMode],0x7f
    );
    KontrolF1.updateLEDs();
}

KontrolF1.registerCallbacks = function() {
    var controller = KontrolF1.controller;

    HIDDebug("Registering HID callbacks");

    controller.linkControl("hid", "select_encoder", "[Playlist]", "SelectTrackKnob");
    controller.linkControl("hid", "select_push", "[Playlist]", "LoadSelectedIntoFirstStopped");
    controller.linkModifier("hid", "shift", "shift");

    controller.setCallback("control", "hid", "capture", KontrolF1.switchControlMode);
    controller.setCallback("control", "hid", "quant", KontrolF1.switchControlMode);

    controller.setCallback("control", "hid", "knob_1", KontrolF1.knob);
    controller.setCallback("control", "hid", "knob_2", KontrolF1.knob);
    controller.setCallback("control", "hid", "knob_3", KontrolF1.knob);
    controller.setCallback("control", "hid", "knob_4", KontrolF1.knob);

    controller.setCallback("control", "hid", "fader_1", KontrolF1.fader);
    controller.setCallback("control", "hid", "fader_2", KontrolF1.fader);
    controller.setCallback("control", "hid", "fader_3", KontrolF1.fader);
    controller.setCallback("control", "hid", "fader_4", KontrolF1.fader);

    controller.setCallback("control", "hid", "grid_1", KontrolF1.grid);
    controller.setCallback("control", "hid", "grid_2", KontrolF1.grid);
    controller.setCallback("control", "hid", "grid_3", KontrolF1.grid);
    controller.setCallback("control", "hid", "grid_4", KontrolF1.grid);
    controller.setCallback("control", "hid", "grid_5", KontrolF1.grid);
    controller.setCallback("control", "hid", "grid_6", KontrolF1.grid);
    controller.setCallback("control", "hid", "grid_7", KontrolF1.grid);
    controller.setCallback("control", "hid", "grid_8", KontrolF1.grid);
    controller.setCallback("control", "hid", "grid_9", KontrolF1.grid);
    controller.setCallback("control", "hid", "grid_10", KontrolF1.grid);
    controller.setCallback("control", "hid", "grid_11", KontrolF1.grid);
    controller.setCallback("control", "hid", "grid_12", KontrolF1.grid);
    controller.setCallback("control", "hid", "grid_13", KontrolF1.grid);
    controller.setCallback("control", "hid", "grid_14", KontrolF1.grid);
    controller.setCallback("control", "hid", "grid_15", KontrolF1.grid);
    controller.setCallback("control", "hid", "grid_16", KontrolF1.grid);

    controller.setCallback("control", "hid", "play_1", KontrolF1.play);
    controller.setCallback("control", "hid", "play_2", KontrolF1.play);
    controller.setCallback("control", "hid", "play_3", KontrolF1.play);
    controller.setCallback("control", "hid", "play_4", KontrolF1.play);

    KontrolF1.linkKnob("decks", "knob_1", "[Master]", "headVolume", "pregain");
    KontrolF1.linkKnob("decks", "knob_2", "[Master]", "headMix", "plusminus");
    KontrolF1.linkKnob("decks", "knob_3", "[Master]", "balance", "plusminus");
    KontrolF1.linkKnob("decks", "knob_4", "[Master]", "volume", "pregain");
    KontrolF1.linkFader("decks", "fader_1", "[Channel1]", "rate", "rate");
    KontrolF1.linkFader("decks", "fader_2", "[Channel1]", "volume", "volume");
    KontrolF1.linkFader("decks", "fader_3", "[Channel2]", "volume", "volume");
    KontrolF1.linkFader("decks", "fader_4", "[Channel2]", "rate", "rate");
    KontrolF1.linkGrid("decks", "grid_1", "[Channel1]", "hotcue_1", false,KontrolF1.hotcue,[0x7f,0x7f,0x0]);
    KontrolF1.linkGrid("decks", "grid_2", "[Channel1]", "hotcue_2", false,KontrolF1.hotcue,[0x7f,0x0,0x7f]);
    KontrolF1.linkGrid("decks", "grid_3", "[Channel2]", "hotcue_1", false,KontrolF1.hotcue,[0x7f,0x7f,0x0]);
    KontrolF1.linkGrid("decks", "grid_4", "[Channel2]", "hotcue_2", false,KontrolF1.hotcue,[0x7f,0x0,0x7f]);
    KontrolF1.linkGrid("decks", "grid_5", "[Channel1]", "hotcue_3", false,KontrolF1.hotcue,[0x0,0x40,0x7f]);
    KontrolF1.linkGrid("decks", "grid_6", "[Channel1]", "hotcue_4", false,KontrolF1.hotcue,[0x0,0x7f,0x0]);
    KontrolF1.linkGrid("decks", "grid_7", "[Channel2]", "hotcue_3", false,KontrolF1.hotcue,[0x0,0x40,0x7f]);
    KontrolF1.linkGrid("decks", "grid_8", "[Channel2]", "hotcue_4", false,KontrolF1.hotcue,[0x0,0x7f,0x0]);
    KontrolF1.linkGrid("decks", "grid_9", "[Channel1]", "loop_in", false,undefined,[0x0,0x7f,0x0]);
    KontrolF1.linkGrid("decks", "grid_10", "[Channel1]", "loop_out", false,undefined,[0x0,0x7f,0x0]);
    KontrolF1.linkGrid("decks", "grid_11", "[Channel2]", "loop_in", false,undefined,[0x0,0x7f,0x0]);
    KontrolF1.linkGrid("decks", "grid_12", "[Channel2]", "loop_out", false,undefined,[0x0,0x7f,0x0]);
    KontrolF1.linkGrid("decks", "grid_13", "[Channel1]", "quantize", true,undefined,[0x10,0x10,0x40]);
    KontrolF1.linkGrid("decks", "grid_14", "[Channel1]", "reloop_exit", false,undefined,[0x7f,0x0,0x0]);
    KontrolF1.linkGrid("decks", "grid_15", "[Channel2]", "quantize", true,undefined,[0x10,0x10,0x40]);
    KontrolF1.linkGrid("decks", "grid_16", "[Channel2]", "reloop_exit");
    KontrolF1.linkPlay("decks", "play_1", "[Channel1]", "play", true);
    KontrolF1.linkPlay("decks", "play_2", "[Channel1]", "cue_default");
    KontrolF1.linkPlay("decks", "play_3", "[Channel2]", "play", true);
    KontrolF1.linkPlay("decks", "play_4", "[Channel2]", "cue_default");

    KontrolF1.linkKnob("samplers", "knob_1", "[Sampler1]", "rate", "ratereversed");
    KontrolF1.linkKnob("samplers", "knob_2", "[Sampler2]", "rate", "ratereversed");
    KontrolF1.linkKnob("samplers", "knob_3", "[Sampler3]", "rate", "ratereversed");
    KontrolF1.linkKnob("samplers", "knob_4", "[Sampler4]", "rate", "ratereversed");
    KontrolF1.linkFader("samplers", "fader_1", "[Sampler1]", "pregain", "pregain");
    KontrolF1.linkFader("samplers", "fader_2", "[Sampler2]", "pregain", "pregain");
    KontrolF1.linkFader("samplers", "fader_3", "[Sampler3]", "pregain", "pregain");
    KontrolF1.linkFader("samplers", "fader_4", "[Sampler4]", "pregain", "pregain");
    KontrolF1.linkGrid("samplers", "grid_1", "[Sampler1]", "hotcue_1", false,KontrolF1.hotcue,[0x7f,0x0,0x0]);
    KontrolF1.linkGrid("samplers", "grid_2", "[Sampler2]", "hotcue_1", false,KontrolF1.hotcue,[0x7f,0x0,0x0]);
    KontrolF1.linkGrid("samplers", "grid_3", "[Sampler3]", "hotcue_1", false,KontrolF1.hotcue,[0x7f,0x0,0x0]);
    KontrolF1.linkGrid("samplers", "grid_4", "[Sampler4]", "hotcue_1", false,KontrolF1.hotcue,[0x7f,0x0,0x0]);
    KontrolF1.linkGrid("samplers", "grid_5", "[Sampler1]", "hotcue_2", false,KontrolF1.hotcue,[0x0,0x7f,0x0]);
    KontrolF1.linkGrid("samplers", "grid_6", "[Sampler2]", "hotcue_2", false,KontrolF1.hotcue,[0x0,0x7f,0x0]);
    KontrolF1.linkGrid("samplers", "grid_7", "[Sampler3]", "hotcue_2", false,KontrolF1.hotcue,[0x0,0x7f,0x0]);
    KontrolF1.linkGrid("samplers", "grid_8", "[Sampler4]", "hotcue_2", false,KontrolF1.hotcue,[0x0,0x7f,0x0]);
    KontrolF1.linkGrid("samplers", "grid_9", "[Sampler1]", "hotcue_3", false,KontrolF1.hotcue,[0x0,0x0,0x7f]);
    KontrolF1.linkGrid("samplers", "grid_10", "[Sampler2]", "hotcue_3", false,KontrolF1.hotcue,[0x0,0x0,0x7f]);
    KontrolF1.linkGrid("samplers", "grid_11", "[Sampler3]", "hotcue_3", false,KontrolF1.hotcue,[0x0,0x0,0x7f]);
    KontrolF1.linkGrid("samplers", "grid_12", "[Sampler4]", "hotcue_3", false,KontrolF1.hotcue,[0x0,0x0,0x7f]);
    KontrolF1.linkGrid("samplers", "grid_13", "[Sampler1]", "hotcue_4", false,KontrolF1.hotcue,[0x0,0x7f,0x7f]);
    KontrolF1.linkGrid("samplers", "grid_14", "[Sampler2]", "hotcue_4", false,KontrolF1.hotcue,[0x0,0x7f,0x7f]);
    KontrolF1.linkGrid("samplers", "grid_15", "[Sampler3]", "hotcue_4", false,KontrolF1.hotcue,[0x0,0x7f,0x7f]);
    KontrolF1.linkGrid("samplers", "grid_16", "[Sampler4]", "hotcue_4", false,KontrolF1.hotcue,[0x0,0x7f,0x7f]);
    KontrolF1.linkPlay("samplers", "play_1", "[Sampler1]", "play", true);
    KontrolF1.linkPlay("samplers", "play_2", "[Sampler2]", "play", true);
    KontrolF1.linkPlay("samplers", "play_3", "[Sampler3]", "play", true);
    KontrolF1.linkPlay("samplers", "play_4", "[Sampler4]", "play", true);
}

KontrolF1.hotcue = function(button,field) {
    var controller = KontrolF1.controller;
    var name;
    if (field.value == controller.buttonStates.released)
        return;
    if (controller.modifiers.get("shift"))
        name = button.name + '_clear';
    else
        name = button.name + '_activate';
    engine.setValue(button.group,name,true);
}

