'use strict';

$(document).ready(function () {

    GUI.updateManualPortVisibility = function(){
        var selected_port = $('div#port-picker #port option:selected');
        if (selected_port.data().isManual) {
            $('#port-override-option').show();
        }
        else {
            $('#port-override-option').hide();
        }
        if (selected_port.data().isDFU) {
            $('select#baud').hide();
        }
        else {
            $('select#baud').show();
        }
    };

    GUI.updateManualPortVisibility();

    $('#port-override').change(function () {
        chrome.storage.local.set({'portOverride': $('#port-override').val()});
    });

    chrome.storage.local.get('portOverride', function (data) {
        $('#port-override').val(data.portOverride);
    });

    $('div#port-picker #port').change(function (target) {
        GUI.updateManualPortVisibility();
    });

    $('div.connect_controls a.connect').click(function () {
        if (GUI.connect_lock != true) { // GUI control overrides the user control

            var clicks = $(this).data('clicks');
            var selected_baud = parseInt($('div#port-picker #baud').val());
            var selected_port = $('div#port-picker #port option:selected').data().isManual ?
                    $('#port-override').val() :
                    String($('div#port-picker #port').val());
            if (selected_port === 'DFU') {
                GUI.log(chrome.i18n.getMessage('dfu_connect_message'));
            }
            else if (selected_port != '0') {
                if (!clicks) {
                    console.log('Connecting to: ' + selected_port);
                    GUI.connecting_to = selected_port;

                    // lock port select & baud while we are connecting / connected
                    $('div#port-picker #port, div#port-picker #baud, div#port-picker #delay').prop('disabled', true);
                    $('div.connect_controls a.connect_state').text(chrome.i18n.getMessage('connecting'));


                    serial.connect(selected_port, {bitrate: selected_baud}, onOpen);
                } else {
                    GUI.timeout_kill_all();
                    GUI.interval_kill_all();
                    GUI.tab_switch_cleanup();
                    GUI.tab_switch_in_progress = false;

                    serial.disconnect(onClosed);

                    var wasConnected = CONFIGURATOR.connectionValid;

                    GUI.connected_to = false;
                    CONFIGURATOR.connectionValid = false;
                    GUI.allowedTabs = GUI.defaultAllowedTabsWhenDisconnected.slice();
                    MSP.disconnect_cleanup();
                    PortUsage.reset();

                    // Reset various UI elements
                    $('span.i2c-error').text(0);
                    $('span.cycle-time').text(0);

                    // unlock port select & baud
                    $('div#port-picker #port').prop('disabled', false);
                    if (!GUI.auto_connect) $('div#port-picker #baud').prop('disabled', false);

                    // reset connect / disconnect button
                    $('div.connect_controls a.connect').removeClass('active');
                    $('div.connect_controls a.connect_state').text(chrome.i18n.getMessage('connect'));
                   
                    // reset active sensor indicators
                    sensor_status(0);

                    if (wasConnected) {
                        // detach listeners and remove element data
                        $('#content').empty();
                    }

                    $('#tabs .tab_landing a').click();
                }

                $(this).data("clicks", !clicks);
            }
        }
    });

    // auto-connect
    chrome.storage.local.get('auto_connect', function (result) {
        if (result.auto_connect === 'undefined' || result.auto_connect) {
            // default or enabled by user
            GUI.auto_connect = true;

            $('input.auto_connect').prop('checked', true);
            $('input.auto_connect, span.auto_connect').prop('title', chrome.i18n.getMessage('autoConnectEnabled'));

            $('select#baud').val(115200).prop('disabled', true);
        } else {
            // disabled by user
            GUI.auto_connect = false;

            $('input.auto_connect').prop('checked', false);
            $('input.auto_connect, span.auto_connect').prop('title', chrome.i18n.getMessage('autoConnectDisabled'));
        }

        // bind UI hook to auto-connect checkbos
        $('input.auto_connect').change(function () {
            GUI.auto_connect = $(this).is(':checked');

            // update title/tooltip
            if (GUI.auto_connect) {
                $('input.auto_connect, span.auto_connect').prop('title', chrome.i18n.getMessage('autoConnectEnabled'));

                $('select#baud').val(115200).prop('disabled', true);
            } else {
                $('input.auto_connect, span.auto_connect').prop('title', chrome.i18n.getMessage('autoConnectDisabled'));

                if (!GUI.connected_to && !GUI.connecting_to) $('select#baud').prop('disabled', false);
            }

            chrome.storage.local.set({'auto_connect': GUI.auto_connect});
            

        });
    });

    PortHandler.initialize();
    PortUsage.initialize();
});




function onOpen(openInfo) {
    if (openInfo) {
        // update connected_to
        GUI.connected_to = GUI.connecting_to;

        // reset connecting_to
        GUI.connecting_to = false;

        GUI.log(chrome.i18n.getMessage('serialPortOpened', [openInfo.connectionId]));

        // save selected port with chrome.storage if the port differs
        chrome.storage.local.get('last_used_port', function (result) {
            if (result.last_used_port) {
                if (result.last_used_port != GUI.connected_to) {
                    // last used port doesn't match the one found in local db, we will store the new one
                    chrome.storage.local.set({'last_used_port': GUI.connected_to});
                }
            } else {
                // variable isn't stored yet, saving
                chrome.storage.local.set({'last_used_port': GUI.connected_to});
            }
        });

        serial.onReceive.addListener(read_serial);

        // disconnect after 10 seconds with error if we don't get IDENT data
        GUI.timeout_add('connecting', function () {
            if (!CONFIGURATOR.connectionValid) {
                GUI.log(chrome.i18n.getMessage('noConfigurationReceived'));

                $('div.connect_controls ').click(); // disconnect
            }
        }, 10000);


        // request configuration data
        MSP.send_message(MSP_codes.MSP_API_VERSION, false, false, function () {
            GUI.log(chrome.i18n.getMessage('apiVersionReceived', [CONFIG.apiVersion]));

            if (semver.gte(CONFIG.apiVersion, CONFIGURATOR.apiVersionAccepted)) {

                MSP.send_message(MSP_codes.MSP_FC_VARIANT, false, false, function () {

                    MSP.send_message(MSP_codes.MSP_FC_VERSION, false, false, function () {

                        googleAnalytics.sendEvent('Firmware', 'Variant', CONFIG.flightControllerIdentifier + ',' + CONFIG.flightControllerVersion);
                        GUI.log(chrome.i18n.getMessage('fcInfoReceived', [CONFIG.flightControllerIdentifier, CONFIG.flightControllerVersion]));

                        MSP.send_message(MSP_codes.MSP_BUILD_INFO, false, false, function () {

                            googleAnalytics.sendEvent('Firmware', 'Using', CONFIG.buildInfo);
                            GUI.log(chrome.i18n.getMessage('buildInfoReceived', [CONFIG.buildInfo]));

                            MSP.send_message(MSP_codes.MSP_BOARD_INFO, false, false, function () {

                                googleAnalytics.sendEvent('Board', 'Using', CONFIG.boardIdentifier + ',' + CONFIG.boardVersion);
                                GUI.log(chrome.i18n.getMessage('boardInfoReceived', [CONFIG.boardIdentifier, CONFIG.boardVersion]));

                                MSP.send_message(MSP_codes.MSP_UID, false, false, function () {
                                    GUI.log(chrome.i18n.getMessage('uniqueDeviceIdReceived', [CONFIG.uid[0].toString(16) + CONFIG.uid[1].toString(16) + CONFIG.uid[2].toString(16)]));

                                    // continue as usually
                                    CONFIGURATOR.connectionValid = true;
                                    GUI.allowedTabs = GUI.defaultAllowedTabsWhenConnected.slice();
                                    if (semver.lt(CONFIG.apiVersion, "1.4.0")) {
                                        GUI.allowedTabs.splice(GUI.allowedTabs.indexOf('led_strip'), 1);
                                    }

                                    GUI.canChangePidController = semver.gte(CONFIG.apiVersion, CONFIGURATOR.pidControllerChangeMinApiVersion);

                                    onConnect();

                                    $('#tabs ul.mode-connected .tab_setup a').click();
                                });
                            });
                        });
                    });
                });
            } else {
                GUI.log(chrome.i18n.getMessage('firmwareVersionNotSupported', [CONFIGURATOR.apiVersionAccepted]));
                CONFIGURATOR.connectionValid = true; // making it possible to open the CLI tab
                GUI.allowedTabs = ['cli'];
                onConnect();
                $('#tabs .tab_cli a').click();
            }
        });
    } else {
        console.log('Failed to open serial port');
        GUI.log(chrome.i18n.getMessage('serialPortOpenFail'));

        $('div#connectbutton a.connect_state').text(chrome.i18n.getMessage('connect'));
        $('div#connectbutton a.connect').removeClass('active');

        // unlock port select & baud
        $('div#port-picker #port, div#port-picker #baud, div#port-picker #delay').prop('disabled', false);

        // reset data
        $('div#connectbutton a.connect').data("clicks", false);
    }
}

function onConnect() {
    GUI.timeout_remove('connecting'); // kill connecting timer
    $('div#connectbutton a.connect_state').text(chrome.i18n.getMessage('disconnect')).addClass('active');
    $('div#connectbutton a.connect').addClass('active');
    $('#tabs ul.mode-disconnected').hide();
    $('#tabs ul.mode-connected').show();

    var sensor_state = $('#sensor-status');
    sensor_state.show(); 
    
    var port_picker = $('#portsinput');
    port_picker.hide(); 

    var dataflash = $('#dataflash_wrapper');
    dataflash.show(); 
     
    MSP.send_message(MSP_codes.MSP_STATUS, false, false);    
        
// TEST code for dataflash status in header
    MSP.send_message(MSP_codes.MSP_DATAFLASH_SUMMARY, false, false);

    function formatFilesize(bytes) {
        if (bytes < 1024) {
            return bytes + "B";
        }
        var kilobytes = bytes / 1024;
        
        if (kilobytes < 1024) {
            return Math.round(kilobytes) + "kB";
        }
        
        var megabytes = kilobytes / 1024;
        
        return megabytes.toFixed(1) + "MB";
    }
    
    function update_html() {
        if (DATAFLASH.usedSize > 0) {
            $(".dataflash-used").css({
                width: (DATAFLASH.usedSize / DATAFLASH.totalSize * 100) + "%",
                display: 'block'
            });
            
            $(".dataflash-used div").text('Dataflash: used ' + formatFilesize(DATAFLASH.usedSize));
        } else {
            $(".dataflash-used").css({
                display: 'none'
            });
        }

        if (DATAFLASH.totalSize - DATAFLASH.usedSize > 0) {
            $(".dataflash-free").css({
                width: ((DATAFLASH.totalSize - DATAFLASH.usedSize) / DATAFLASH.totalSize * 100) + "%",
                display: 'block'
            });
            $(".dataflash-free div").text('Dataflash: free ' + formatFilesize(DATAFLASH.totalSize - DATAFLASH.usedSize));
        } else {
            $(".dataflash-free").css({
                display: 'none'
            });
        }
        
    }
    update_html();
        
        
        
        

    // testing dataflash change END      
    
    
}

function onClosed(result) {
    if (result) { // All went as expected
        GUI.log(chrome.i18n.getMessage('serialPortClosedOk'));
    } else { // Something went wrong
        GUI.log(chrome.i18n.getMessage('serialPortClosedFail'));
    }

    $('#tabs ul.mode-connected').hide();
    $('#tabs ul.mode-disconnected').show();

    var sensor_state = $('#sensor-status');
    sensor_state.hide();
    
    var port_picker = $('#portsinput');
    port_picker.show(); 
    
    var dataflash = $('#dataflash_wrapper');
    dataflash.hide();

}

function read_serial(info) {
    if (!CONFIGURATOR.cliActive) {
        MSP.read(info);
    } else if (CONFIGURATOR.cliActive) {
        TABS.cli.read(info);
    }
}

function sensor_status(sensors_detected) {
    // initialize variable (if it wasn't)
    if (!sensor_status.previous_sensors_detected) {
        sensor_status.previous_sensors_detected = 0;
    }

    // update UI (if necessary)
    if (sensor_status.previous_sensors_detected == sensors_detected) {
        return;
    }

    // set current value
    sensor_status.previous_sensors_detected = sensors_detected;

    var e_sensor_status = $('div#sensor-status');

    if (have_sensor(sensors_detected, 'acc')) {
        $('.accel', e_sensor_status).addClass('on');
        $('.accicon', e_sensor_status).addClass('active');

    } else {
        $('.accel', e_sensor_status).removeClass('on');
        $('.accicon', e_sensor_status).removeClass('active');
    }

    if (have_sensor(sensors_detected, 'gyro')) {
        $('.gyro', e_sensor_status).addClass('on');
        $('.gyroicon', e_sensor_status).addClass('active');
    } else {
        $('.gyro', e_sensor_status).removeClass('on');
        $('.gyroicon', e_sensor_status).removeClass('active');
    }

    if (have_sensor(sensors_detected, 'baro')) {
        $('.baro', e_sensor_status).addClass('on');
        $('.baroicon', e_sensor_status).addClass('active');
    } else {
        $('.baro', e_sensor_status).removeClass('on');
        $('.baroicon', e_sensor_status).removeClass('active');
    }

    if (have_sensor(sensors_detected, 'mag')) {
        $('.mag', e_sensor_status).addClass('on');
		$('.magicon', e_sensor_status).addClass('active');
    } else {
        $('.mag', e_sensor_status).removeClass('on');
        $('.magicon', e_sensor_status).removeClass('active');
    }

    if (have_sensor(sensors_detected, 'gps')) {
        $('.gps', e_sensor_status).addClass('on');
		$('.gpsicon', e_sensor_status).addClass('active');
    } else {
        $('.gps', e_sensor_status).removeClass('on');
        $('.gpsicon', e_sensor_status).removeClass('active');
    }

    if (have_sensor(sensors_detected, 'sonar')) {
        $('.sonar', e_sensor_status).addClass('on');
        $('.sonaricon', e_sensor_status).addClass('active');
    } else {
        $('.sonar', e_sensor_status).removeClass('on');
        $('.sonaricon', e_sensor_status).removeClass('active');
    }
}

function have_sensor(sensors_detected, sensor_code) {
    switch(sensor_code) {
        case 'acc':
        case 'gyro':
            return bit_check(sensors_detected, 0);
        case 'baro':
            return bit_check(sensors_detected, 1);
        case 'mag':
            return bit_check(sensors_detected, 2);
        case 'gps':
            return bit_check(sensors_detected, 3);
        case 'sonar':
            return bit_check(sensors_detected, 4);
    }
    return false;
}

function highByte(num) {
    return num >> 8;
}

function lowByte(num) {
    return 0x00FF & num;
}

function specificByte(num, pos) {
    return 0x000000FF & (num >> (8 * pos));
}

function bit_check(num, bit) {
    return ((num >> bit) % 2 != 0);
}

function bit_set(num, bit) {
    return num | 1 << bit;
}

function bit_clear(num, bit) {
    return num & ~(1 << bit);
}