// The local/remote server URL
//var ROBOT_SERVER = '10.42.0.1';
var ROBOT_SERVER = 'ws.achex.ca:4010';

var workspace;
// The sumorobot object
var sumorobot;
// Disable / enable coding mode
var codingEnabled = false;
// Disable / enable live stream
var liveStreamVisible = false;

window.addEventListener('load', function() {
    // Set the robot ID from the localstorage
    $('#robot-id').val(getLocalStorageItem('sumorobot.robotId'));

    // Key down event
    $(document).keydown(function(e) {
        // When the alt key is not pressed, don't process hotkeys
        if (e.altKey == false) return;

        // Prevent typing in textfields
        e.preventDefault();

        // Select the hotkey
        switch(e.which) {
            case 32: // space bar
                if (sumorobot.moving) {
                    $('.btn-stop').addClass('hover');
                    $('.btn-stop').click();
                } else {
                    $('.btn-start').addClass('hover');
                    $('.btn-start').click();
                }
                break;
            case 37: // left
                sumorobot.send('left');
                break;
            case 38: // up
                sumorobot.send('forward');
                break;
            case 39: // right
                sumorobot.send('right');
                break;
            case 40: // down
                sumorobot.send('backward');
                break;
            case 67: // c
                $('#panel').toggle();
                break;
            case 76: // l
                // No live stream if cookies are disabled
                if (!cookiesEnabled) {
                    // TODO: Open the cookie consent popup
                    return;
                }
                // Load the Mixer stream when it is not yet loaded
                if ($('#stream').is(':empty')) {
                    $('#stream').html('<iframe src="https://mixer.com/embed/player/14551694"></iframe>');
                }
                $('#stream').toggle();
                // Toggle live steam visible
                liveStreamVisible = !liveStreamVisible;
                // If not in coding mode
                if (codingEnabled == false) {
                    $('#readOnlyBlocklyCode').toggle();
                }
                break;
            case 80: // p
                $('#blocklyDiv').toggle();
                $('#blocklyArea').toggle();
                $('#blocklyCode').toggle();
                // When live stream is not active
                if (liveStreamVisible == false) {
                    // Toggle Blockly Python code
                    $('#readOnlyBlocklyCode').toggle();
                }
                // Toggle coding enabled
                codingEnabled = !codingEnabled;
                if (codingEnabled) {
                    // Resize the coding editor
                    codingEditor.resize();
                    // Focus, so the user can start coding
                    codingEditor.focus();
                }
                break;
            case 82: // r
                // Implement something
                break;
            case 83: // s
                $('.btn-stop').addClass('hover');
                $('.btn-stop').click();
                break;
            case 84: // t
                sumorobot.send('calibrate_line');
                break;
            case 87: // w
                $('.btn-start').addClass('hover');
                $('.btn-start').click();
                break;
        }
    });

    // Key up event
    $(document).keyup(function(e) {
        // When the alt key is not pressed, don't process hotkeys
        if (e.altKey == false) return;
        // Remove hover from buttons
        $('.btn').removeClass('hover');
        // If arrow keys were pressed
        if (e.which == 37 || e.which == 38 || e.which == 39 || e.which == 40) {
            sumorobot.send('stop');
        }
    });

    // Start button listener
    $('.btn-start').click(function() {
        // When we are in Python coding mode
        if (codingEnabled) {
            // Get the Python code
            parsedCode = codingEditor.getValue();
        // Otherwise when we are in Blockly mode
        } else {
            // Get the code from the blocks
            parsedCode = sumorobot.getBlocklyCode().replace(/;;.{20}/g, '');
        }
        // Escape the qoutes, replace new lines and send the code
        sumorobot.send('code', parsedCode.replace(/"/g, '\\"').replace(/\n/g, ';;'));
        // TODO: Highlight the blocks and lines
        /*var lines = sumorobot.getBlocklyCode().replace(/ /g, '').split('\n');
        // Process code lines
        for (i in lines) {
            if (lines[i]) {
                console.log(lines[i].split(';;'));
            }
        }*/
    });

    // Stop button listener
    $('.btn-stop').click(function() {
        sumorobot.send('stop');
        // TODO: Stop highlighting blocks and lines
    });

    // Enter (return) keypress listener on robot ID field
    $('#robot-id').keypress(function(e) {
        if (e.which == 13) {
            // Simulate robot GO button click
            $('.btn-robot-go').click();
        }
    });

    // Robot GO button listener
    $('.btn-robot-go').click(function() {
        // Extract and validate the selected robot ID
        var robotId = $('#robot-id').val().trim();
        if (robotId === '' || /^([a-f0-9]{6})$/.test(robotId) == false) {
            $('#robot-id, #robot-label').addClass('has-error');
            return;
        } else {
            $('#robot-id, #robot-label').removeClass('has-error');
        }
        // Update robot ID in local storage
        setLocalStorageItem('sumorobot.robotId', robotId);
        // When a connection was already opened
        if (sumorobot) {
            // Close the connection
            sumorobot.close();
        }
        // Connect to the selected robots WebSocket
        sumorobot = new Sumorobot(`ws://${ROBOT_SERVER}`, robotId);
        // Hide the configuration panel
        $('#panel').hide();
    });
});