var PSA_CONFIG = {

    /**
     * Title of the campaign.
     * This value is used for pageName.
     */
    campaignTitle: '',

    /**
     * The Brand
     */
    brand: 'peugeot',

    /**
     * Models
     * Define a Object for each model that is available on current page
     * id = vehicleModelBodystyle
     * label = vehicleModelBodystyleLabel
     */
    models: [
        {
            id: 'MY_MODEL_ID',
            label: 'Super cool PSA car'
        }
    ],

    /**
     * Available conversion types
     * testdrive - offer - brochure
     */
    conversionTypes: [
        'testdrive',
        'offer'
    ]
};
/**
 * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 *
 * DANGER ZONE!! -> DO NOT CHANGE!!
 *
 * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
 */
var PSA_STATIC_DATA = {};

var PSA_MAPPINGS = {
    brand: {
        peugeot: 'kpp',
        citroen: 'cpp'
    },
    conversion: {
        testdrive: 'test-drive',
        offer: 'offer-request',
        brochure: 'brochure-request',
        probefahrt: 'test-drive',
        offerte: 'offer-request',
        broschuere: 'brochure-request'
    }
};

/**
 * Init
 */
(function (window) {
    window.dataLayer = window.dataLayer || [];

    PSA_STATIC_DATA = {
        brand: PSA_CONFIG.brand,
        language: getLanguage(),
        pageCategory: 'form page',
        country: 'ch',
        siteTypeLevel1: PSA_MAPPINGS.brand[PSA_CONFIG.brand],
        siteTypeLevel2: 'promotion::ready to go',
        siteOwner: 'local',
        siteTarget: 'B2C',
        siteFamily: 'new cars',
        virtualPageURL: '/forms/test-drive|offer-request',
        formsName: 'test drive',
        mainStepIndicator: 1,
        mainStepName: 'personal information'
    };

    var ids = [];
    var labels = [];
    PSA_CONFIG.models.forEach(function (modelObj) {
        ids.push(modelObj.id);
        labels.push(modelObj.label);
    });

    PSA_STATIC_DATA.vehicleModelBodystyle = ids.join('|');
    PSA_STATIC_DATA.vehicleModelBodystyleLabel = labels.join('|');

    if (!PSA_MAPPINGS.brand.hasOwnProperty(PSA_CONFIG.brand)) {
        throw new Error('Brand is not defined in brand map')
    }

    var data = [
        PSA_MAPPINGS.brand[PSA_CONFIG.brand],
        PSA_STATIC_DATA.siteTypeLevel2,
        PSA_STATIC_DATA.siteOwner,
        PSA_STATIC_DATA.siteTarget,
        PSA_STATIC_DATA.siteFamily
    ];

    if (PSA_CONFIG.models.length === 1) {
        data.push(PSA_CONFIG.models[0].id)
    } else {
        data.push('');
    }

    data.push('desktop');
    data.push('');
    data.push(PSA_CONFIG.campaignTitle.replace(/\s+/g, '-').toLowerCase());

    PSA_STATIC_DATA.pageName = data.join('/');

    window.dataLayer.push(PSA_STATIC_DATA);
})(window);

/**
 * On Confirmation
 * @param conversionTypes
 * @param postal
 */
function onConfirmation(conversionType, postal) {


    var evtData = Object.assign(PSA_STATIC_DATA, {
        event: 'updatevirtualpath',
        pageCategory: 'lead page',
        formsLeadType: 'hot lead',
        formsLeadID: getGITID(),
        formsPostalCode: postal,
        mainStepIndicator: 2,
        mainStepName: 'confirmation'
    });


    var mappedName = mapConversionType(conversionType);

    PSA_STATIC_DATA.formsName = mappedName.replace(/-/g, ' ');
    mapConversionType(conversionType);

    PSA_STATIC_DATA.virtualPageURL = '/forms/'
        + mappedName
        + '/confirmation';

    window.dataLayer.push(evtData);
}

/**
 * Get current language from query parameter
 * @returns {string | null | string}
 */
function getLanguage() {
    var urlParams = new URLSearchParams(window.location.search);
    return urlParams.get('lang') || 'de'
}


/**
 * Generate a unique ID
 * @returns {string}
 */
function getGITID() {
    var r = "", s = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
    for( var i=0; i < 20; i++ )
        r += s.charAt(Math.floor(Math.random() * s.length));
    return r;
}

/**
 * Map conversion types
 *
 * testdrive|offer ...
 *
 * @param conversionTypes
 * @returns {string}
 */
function mapConversionType(conversionType) {
    if (PSA_MAPPINGS.conversion.hasOwnProperty(conversionType)) {
        return PSA_MAPPINGS.conversion[conversionType];
    } else {
        return conversionType;
    }
}