package Services;

import Entities.User;
import Utils.ServerUrl;
import com.codename1.io.*;
import com.codename1.io.CharArrayReader;
import com.codename1.ui.Dialog;
import com.codename1.ui.events.ActionListener;
import java.io.*;
import java.util.ArrayList;
import java.util.List;
import java.util.Map;

public class UserService {
    public User user ;
    public ArrayList<User> users ;
    public static UserService instance=null;
    public boolean resultOK;
    private ConnectionRequest req;

    private UserService() {
        req = new ConnectionRequest() {
            @Override
            protected void handleErrorResponseCode(int code, String message) {
                if (code == 401) { // Unauthorized
                    Dialog.show("Check Your information","Check Your information","ok",null);
                } else {
                    Dialog.show("Error", code + ": " + message, "Retry", "Cancel");
                }
            }
        };
    }

    public static UserService getInstance() {
        if (instance == null) {
            instance = new UserService();
        }
        return instance;
    }


    // only id and roles
    public User parseUser(String jsonText){
            JSONParser j = new JSONParser();
            Map<String, Object> tasksListJson = null;
            try {
                tasksListJson = j.parseJSON(new CharArrayReader(jsonText.toCharArray()));
            } catch (IOException e) {
                e.printStackTrace();
            }
            User user = new User() ;
            // get User Id
            double id = (double) tasksListJson.get("id");
            // Arraylist because we have two roles
            ArrayList<String> roles = (ArrayList<String>) tasksListJson.get("roles");
            // we need the first one
            String role = roles.get(0) ;

            // set info to user
            user.setId((int) id);
            user.setRoles(role);
            return user;
    }

    public ArrayList<User> parseUsers(String jsonText){
        ArrayList<User> list = new ArrayList<>() ;
        User user ;
        JSONParser j = new JSONParser();
        Map<String, Object> tasksListJson = null;
        try {
            tasksListJson = j.parseJSON(new CharArrayReader(jsonText.toCharArray()));
        } catch (IOException e) {
            e.printStackTrace();
        }

        List<Map<String,Object>> mapList = (List<Map<String, Object>>) tasksListJson.get("root");
       for(Map<String,Object> ob : mapList)
       {
           double id = (double) ob.get("id") ;
           String email = (String) ob.get("Email") ;
           String nom = (String) ob.get("Nom") ;
           String prenom = (String) ob.get("Prenom") ;
           double age = (double) ob.get("age") ;
           user = new User() ;
           user.setId((int) id);
           user.setEmail(email);
           user.setNom(nom);
           user.setPrenom(prenom);
           u
           System.out.println(ob);
       }
       return list ;
    }


    public ArrayList<User> getAllUsers(){
        String url = ServerUrl.baseUrl+"/users";
        req.setUrl(url);
        req.setPost(true);
        req.addResponseListener(new ActionListener<NetworkEvent>() {
            @Override
            public void actionPerformed(NetworkEvent evt) {
                users = parseUsers(new String(req.getResponseData()));
                req.removeResponseListener(this);
            }
        });
        NetworkManager.getInstance().addToQueueAndWait(req);
        return users;
    }

    public User SignIn(String email , String password) {
        String url = ServerUrl.baseUrl + "/signin" ;
        req.setUrl(url);
        req.setPost(true);
        req.setReadResponseForErrors(false);
        req.setHttpMethod("POST");
        req.setContentType("application/json");
        req.setRequestBody("{\n" +
                "    \"username\": \""+email+"\",\n" +
                "    \"password\": \""+password+"\"\n" +
                "}");
        req.addResponseListener(new ActionListener<NetworkEvent>() {
            @Override
            public void actionPerformed(NetworkEvent evt) {
                resultOK = req.getResponseCode() == 200;
                user = parseUser(new String(req.getResponseData()));
                req.removeResponseListener(this);
            }
        });
        NetworkManager.getInstance().addToQueueAndWait(req);
        return user;
    }

}