require("globals");

import definition = require("application");

import observable = require("data/observable");

import frame = require("ui/frame");

import cssSelector = require("ui/styling/css-selector");

import * as fileSystemModule from "file-system";

import * as styleScopeModule from "ui/styling/style-scope";

var events = new observable.Observable();

global.moduleMerge(events, exports);

export var launchEvent = "launch";

export var suspendEvent = "suspend";

export var resumeEvent = "resume";

export var exitEvent = "exit";

export var lowMemoryEvent = "lowMemory";

export var uncaughtErrorEvent = "uncaughtError";

export var orientationChangedEvent = "orientationChanged";

export var mainModule: string;

export var mainEntry: frame.NavigationEntry;

export var cssFile: string = "app.css"

export var cssSelectorsCache: Array<cssSelector.CssSelector> = undefined;

export var resources: any = {};

export var onUncaughtError: (error: definition.NativeScriptError) => void = undefined;

export var onLaunch: (context: any) => any = undefined;

export var onSuspend: () => any = undefined;

export var onResume: () => any = undefined;

export var onExit: () => any = undefined;

export var onLowMemory: () => any = undefined;

export var android = undefined;

export var ios = undefined;

export function loadCss(cssFile?: string): Array<cssSelector.CssSelector> {

if (!cssFile) {

return undefined;

}

var result: Array<cssSelector.CssSelector>;

var fs: typeof fileSystemModule = require("file-system");

var styleScope: typeof styleScopeModule = require("ui/styling/style-scope");

var cssFileName = fs.path.join(fs.knownFolders.currentApp().path, cssFile);

if (fs.File.exists(cssFileName)) {

var file = fs.File.fromPath(cssFileName);

var applicationCss = file.readTextSync();

if (applicationCss) {

result = styleScope.StyleScope.createSelectorsFromCss(applicationCss, cssFileName);

}

}

return result;

}