package net.plil.clubinfo.etunicorn.app;

import android.animation.Animator;
import android.animation.AnimatorListenerAdapter;
import android.annotation.TargetApi;
import android.content.Intent;
import android.os.Build;
import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.view.KeyEvent;
import android.view.View;
import android.view.View.OnClickListener;
import android.view.inputmethod.EditorInfo;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;

import com.android.volley.Request;
import com.android.volley.Response;
import com.android.volley.VolleyError;
import com.android.volley.toolbox.JsonObjectRequest;

import net.plil.clubinfo.etunicorn.R;
import net.plil.clubinfo.etunicorn.data.Session;
import net.plil.clubinfo.etunicorn.data.User;
import net.plil.clubinfo.etunicorn.utils.ConvertBytesToString;
import net.plil.clubinfo.etunicorn.utils.JsonConverter;
import net.plil.clubinfo.etunicorn.utils.VolleyUtils;

import org.json.JSONException;
import org.json.JSONObject;

/**
 * A login screen that offers login via email/password.
 */
public class LoginActivity extends AppCompatActivity {

    private EditText mUsernameView;
    private EditText mPasswordView;
    private View mProgressView;
    private View mLoginFormView;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_login);
        // Set up the login form.
        mUsernameView = (EditText) findViewById(R.id.username);

        mPasswordView = (EditText) findViewById(R.id.password);
        mPasswordView.setOnEditorActionListener(new TextView.OnEditorActionListener() {
            @Override
            public boolean onEditorAction(TextView textView, int id, KeyEvent keyEvent) {
                if (id == R.id.login || id == EditorInfo.IME_NULL) {
                    attemptLogin();
                    return true;
                }
                return false;
            }
        });

        Button mEmailSignInButton = (Button) findViewById(R.id.email_sign_in_button);
        mEmailSignInButton.setOnClickListener(new OnClickListener() {
            @Override
            public void onClick(View view) {
                attemptLogin();
            }
        });

        mLoginFormView = findViewById(R.id.login_form);
        mProgressView = findViewById(R.id.login_progress);
    }


    /**
     * Attempts to sign in or register the account specified by the login form.
     * If there are form errors (invalid email, missing fields, etc.), the
     * errors are presented and no actual login attempt is made.
     */
    private void attemptLogin() {

        // Reset errors.
        mUsernameView.setError(null);
        mPasswordView.setError(null);

        // Store values at the time of the login attempt.
        String email = mUsernameView.getText().toString();
        String username = mPasswordView.getText().toString();


        showProgress(true);
        tryLogin(email, username);
    }

    /**
     * Shows the progress UI and hides the login form.
     */
    @TargetApi(Build.VERSION_CODES.HONEYCOMB_MR2)
    private void showProgress(final boolean show) {
        // On Honeycomb MR2 we have the ViewPropertyAnimator APIs, which allow
        // for very easy animations. If available, use these APIs to fade-in
        // the progress spinner.
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.HONEYCOMB_MR2) {
            int shortAnimTime = getResources().getInteger(android.R.integer.config_shortAnimTime);

            mLoginFormView.setVisibility(show ? View.GONE : View.VISIBLE);
            mLoginFormView.animate().setDuration(shortAnimTime).alpha(
                    show ? 0 : 1).setListener(new AnimatorListenerAdapter() {
                @Override
                public void onAnimationEnd(Animator animation) {
                    mLoginFormView.setVisibility(show ? View.GONE : View.VISIBLE);
                }
            });

            mProgressView.setVisibility(show ? View.VISIBLE : View.GONE);
            mProgressView.animate().setDuration(shortAnimTime).alpha(
                    show ? 1 : 0).setListener(new AnimatorListenerAdapter() {
                @Override
                public void onAnimationEnd(Animator animation) {
                    mProgressView.setVisibility(show ? View.VISIBLE : View.GONE);
                }
            });
        } else {
            // The ViewPropertyAnimator APIs are not available, so simply show
            // and hide the relevant UI components.
            mProgressView.setVisibility(show ? View.VISIBLE : View.GONE);
            mLoginFormView.setVisibility(show ? View.GONE : View.VISIBLE);
        }
    }

    /**
     * You need a polytech Lille Account
     *
     * @param username The username of the person
     * @param password The password of the person
     */
    private void tryLogin(String username, String password) {
        User user = new User();
        user.setPassword(password);
        user.setLogin(username);
        JsonObjectRequest jsonObjectRequest = null;
        try {

            jsonObjectRequest = new JsonObjectRequest(Request.Method.POST, VolleyUtils.baseUri + "/login", new JSONObject(JsonConverter.getConverter().toJson(user)), new Response.Listener<JSONObject>() {
                @Override
                public void onResponse(JSONObject response) {
                    showProgress(false);
                    Intent intent = new Intent(getApplicationContext(), MainActivity.class);
                    Session s = JsonConverter.getConverter().fromJson(String.valueOf(response), Session.class);
                    intent.putExtra("session", s);
                    startActivity(intent);
                }
            }, new Response.ErrorListener() {
                @Override
                public void onErrorResponse(VolleyError error) {
                    showProgress(false);
                    if (error.networkResponse != null)
                        Toast.makeText(getApplicationContext(), "error : " + ConvertBytesToString.bytesToStringVolLey(error.networkResponse.data), Toast.LENGTH_SHORT).show();
                    else
                        Toast.makeText(getApplicationContext(), "Unknow Error " + error.getMessage(), Toast.LENGTH_SHORT).show();
                }
            }
            );
        } catch (JSONException e) {
            e.printStackTrace();
        }
        VolleyUtils.getInstance(getApplicationContext()).addToRequestQueue(jsonObjectRequest);
    }
}