package controller;

import java.io.IOException;
import java.util.ArrayList;

import Classes.Category;
import Classes.SortTypes;
import Classes.css.user.ContextBuilder;
import Classes.css.user.HeaderIconStyleSheet;
import Classes.css.user.HeaderStyleSheet;
import Classes.css.user.MenuStyleSheet;
import Classes.css.user.SubMenuStyleSheet;
import Interfaces.Event;
import Interfaces.EventObserver;
import javafx.application.Application;
import javafx.fxml.FXMLLoader;
import javafx.scene.Scene;
import javafx.scene.layout.AnchorPane;
import javafx.scene.layout.FlowPane;
import javafx.stage.Stage;
import model.NewsListModel;
import model.NewsModel;

public class RootLayout extends Application implements EventObserver {

	public static void main(String[] args){ launch(args); }



	/* (1) Attributes
	---------------------------------------------------------*/
	/* (1) Root elements */
	private Stage      root_stage;
	private Scene      root_scene;
	private AnchorPane root_layout;

	/* (2) Local elements */
	private FlowPane   main_container;
	private Article    articles;



	/* (2) Builds the stage, scene, ...
	*
	* @primary_stage<Stage>				The primary stage to create in
	*
	---------------------------------------------------------*/
	@Override
	public void start(Stage primary_stage) throws Exception {

		/* (1) Init. stage, scene and context
		---------------------------------------------------------*/
		/* (1) store primary stage + title it */
		this.root_stage = primary_stage;
		this.root_stage.setTitle("Inifiny Mail Client");

		/* (2) Load the root layout*/
		this.loadRootLayout();

		/* (3) Load the CSS CONTEXT */
		ContextBuilder.createContext();

		/* (3) Store container */
		this.main_container = (FlowPane) this.root_scene.lookup("#container");


		/* (2) Manage static stylesheet
		---------------------------------------------------------*/
		/* (1) #header */
		new HeaderStyleSheet( this.root_scene.lookup("#header") );

		/* (2) #menu_container */
		new MenuStyleSheet( this.root_scene.lookup("#menu") );

		/* (3) #submenu */
		new SubMenuStyleSheet( this.root_scene.lookup("#submenu") );

		/* (4) #header_icon*/
		new HeaderIconStyleSheet( this.root_scene.lookup("#header_icon") );

		

		/* (3) Manage controllers
		---------------------------------------------------------*/
		/* (1) Create HeaderMenu */
		HeaderMenu hm = new HeaderMenu((FlowPane) this.root_scene.lookup("#header_menu"),this);

		hm.addItem("notification", "/src/header-notif.png");
		hm.addItem("mail",         "/src/header-mail.png");
		hm.addItem("search",       "/src/header-search.png");
		hm.addItem("menu",         "/src/header-menu.png");

		/* (2) Init. articles controller */
		this.articles = new Article(this.main_container, this);



	}



	/* (3) Loads the root layout and init. the scene-stage-pane
	*
	*
	---------------------------------------------------------*/
	public void loadRootLayout(){

		try{

			/* (1) Load the root_disp.fxml */
			FXMLLoader loader = new FXMLLoader();

			loader.setLocation(getClass().getResource("/fxml/model.fxml"));

			/* (2) Load the layout into the scene */
			this.root_layout = (AnchorPane) loader.load();
			this.root_scene  = new Scene(this.root_layout);

			/* (3) Add the scene to the stage */
			this.root_stage.setScene(this.root_scene);

			/* (4) Show the stage */
			this.root_stage.show();

		}catch(IOException e){
			e.printStackTrace();
		}

	}



	/* (4) Event dispatcher
	*
	* @e<Event>							observed event received
	*
	---------------------------------------------------------*/
	@Override
	public void handleEvent(Event e) {
		/*
		HashMap<String,String> headers = new HashMap<String,String>();
		headers.put("Referer", "http://www.wordreference.com");

		ApiCall call = new ApiCall("http://api.wordreference.com/1/json/enfr/grin","GET",new Callback() {

			@Override
			public void onSuccess(JSONObject response) {
				System.out.println(response.toString());

			}

			@Override
			public void onError() {
				System.out.println("APICall error");

			}

		});
		call.addHeaders(headers);
		call.send();*/

		switch( e.getEventType() ){

			/* (1) On HeaderMenu.item.click -> search sources */
			case "changeMainLayout":
				this.handleMainLayoutChange(e.getObjectId());
				break;

			/* (2) articles.query.success -> display articles */
			case "NewsQuerySuccess":

				for( NewsModel news : NewsListModel.getInstance().getNews() ){

					try{
						this.articles.addItem( news );
					}catch(Exception e1){
						System.out.println("Cannot fetch article data");
					}

				}
				break;

			/* (3) articles.query.error -> display error ('no result') */
			case "NewsQueryFailed":
				System.out.println("une erreur est survenue");
				break;
		}

	}

	public void handleMainLayoutChange(String layout) {

		NewsListModel.getInstance().addObserver("MainClass", this);
		NewsListModel.getInstance().setCategory(Category.business);
		NewsListModel.getInstance().setSortType(SortTypes.publishedAt);
		NewsListModel.getInstance().query("bitcoin");

	}
}