'use strict';

var exec = require('cordova/exec');
var SERVICE = 'BluememeUtils';
var eventHandlers = {};

function noop() {}

function asWifiOptions(input) {
    if (typeof input === 'string') {
        return { ssid: input };
    }
    return input || {};
}

function call(action, args, success, error) {
    exec(success || noop, error || noop, SERVICE, action, args || []);
}

function createCustomEvent(name, detail) {
    var eventName = 'bluememeutils.' + name;

    if (typeof window.CustomEvent === 'function') {
        return new window.CustomEvent(eventName, { detail: detail });
    }

    var event = document.createEvent('CustomEvent');
    event.initCustomEvent(eventName, false, false, detail);
    return event;
}

function dispatchLocalEvent(event) {
    if (!event || !event.type) {
        return;
    }

    var handlers = eventHandlers[event.type] || [];
    handlers.slice().forEach(function (handler) {
        handler(event);
    });

    if (typeof window !== 'undefined' && typeof window.dispatchEvent === 'function') {
        window.dispatchEvent(createCustomEvent(event.type, event));
    }
}

var api = {
    getDeviceInfo: function (success, error) {
        call('getDeviceInfo', [], success, error);
    },

    saveWifi: function (options, success, error) {
        call('saveWifi', [asWifiOptions(options)], success, error);
    },

    connectWifi: function (options, success, error) {
        call('connectWifi', [asWifiOptions(options)], success, error);
    },

    disconnectWifi: function (success, error) {
        call('disconnectWifi', [], success, error);
    },

    removeWifi: function (options, success, error) {
        call('removeWifi', [asWifiOptions(options)], success, error);
    },

    requestWifiPermission: function (success, error) {
        call('requestWifiPermission', [], success, error);
    },

    isBiometricAvailable: function (success, error) {
        call('isBiometricAvailable', [], success, error);
    },

    unlockWithBiometrics: function (options, success, error) {
        call('unlockWithBiometrics', [options || {}], success, error);
    },

    requestPushPermission: function (success, error) {
        call('requestPushPermission', [], success, error);
    },

    getFirebaseToken: function (success, error) {
        call('getFirebaseToken', [], success, error);
    },

    subscribeToTopic: function (topic, success, error) {
        call('subscribeToTopic', [topic], success, error);
    },

    unsubscribeFromTopic: function (topic, success, error) {
        call('unsubscribeFromTopic', [topic], success, error);
    },

    getInitialNotification: function (success, error) {
        call('getInitialNotification', [], success, error);
    },

    startNotificationListener: function (success, error) {
        call('startNotificationListener', [], function (event) {
            dispatchLocalEvent(event);
            if (success) {
                success(event);
            }
        }, error);
    },

    stopNotificationListener: function (success, error) {
        call('stopNotificationListener', [], success, error);
    },

    on: function (type, handler) {
        if (!eventHandlers[type]) {
            eventHandlers[type] = [];
        }
        eventHandlers[type].push(handler);
    },

    off: function (type, handler) {
        var handlers = eventHandlers[type];
        if (!handlers) {
            return;
        }
        var index = handlers.indexOf(handler);
        if (index >= 0) {
            handlers.splice(index, 1);
        }
    }
};

module.exports = api;