buildscript {

    repositories {
        google()
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.0.1'


        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
        classpath 'com.google.gms:google-services:3.2.0'
    }
}

allprojects {
    repositories {
        google()
        jcenter()
        maven {
            url "https://maven.google.com" // Google's Maven repository
        }
    }
//
//    task clean(type: Delete) {
//        delete rootProject.buildDir
//    }


}

apply plugin: 'com.android.application'

android {
    compileSdkVersion 26
    defaultConfig {
        applicationId "com.example.android.battle_poke"
        minSdkVersion 15
        targetSdkVersion 26
        versionCode 1
        versionName "1.0"
        testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
    }
    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
        }
    }
    sourceSets { main { assets.srcDirs = ['src/main/assets', 'src/main/assets/'] } }
}

dependencies {
    implementation fileTree(dir: 'libs', include: ['*.jar'])
    implementation 'com.android.support:appcompat-v7:26.1.0'
    implementation 'com.android.support.constraint:constraint-layout:1.0.2'
    implementation 'com.google.firebase:firebase-auth:11.8.0'
    testImplementation 'junit:junit:4.12'
    androidTestImplementation 'com.android.support.test:runner:1.0.1'
    androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'

    compile 'com.google.firebase:firebase-auth:11.8.0'



}


apply plugin: 'com.google.gms.google-services'

/**
 * Copyright 2016 Google Inc. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.example.android.battle_poke;

import android.os.Bundle;
import android.support.annotation.NonNull;
import android.text.TextUtils;
import android.util.Log;
import android.view.View;
import android.widget.EditText;
import android.widget.TextView;
import android.widget.Toast;

import com.google.android.gms.tasks.OnCompleteListener;
import com.google.android.gms.tasks.Task;
import com.google.firebase.auth.AuthResult;
import com.google.firebase.auth.FirebaseAuth;
import com.google.firebase.auth.FirebaseUser;

public class EmailPasswordActivity extends BaseActivity implements
        View.OnClickListener {

    private static final String TAG = "EmailPassword";

    private TextView mStatusTextView;
    private TextView mDetailTextView;
    private EditText mEmailField;
    private EditText mPasswordField;

    // [START declare_auth]
    private FirebaseAuth mAuth;
    // [END declare_auth]

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_emailpassword);

        // Views
        mStatusTextView = findViewById(R.id.status);
        mDetailTextView = findViewById(R.id.detail);
        mEmailField = findViewById(R.id.field_email);
        mPasswordField = findViewById(R.id.field_password);

        // Buttons
        findViewById(R.id.email_sign_in_button).setOnClickListener(this);
        findViewById(R.id.email_create_account_button).setOnClickListener(this);
        findViewById(R.id.sign_out_button).setOnClickListener(this);
        findViewById(R.id.verify_email_button).setOnClickListener(this);

        // [START initialize_auth]
        mAuth = FirebaseAuth.getInstance();
        // [END initialize_auth]
    }

    // [START on_start_check_user]
    @Override
    public void onStart() {
        super.onStart();
        // Check if user is signed in (non-null) and update UI accordingly.
        FirebaseUser currentUser = mAuth.getCurrentUser();
        updateUI(currentUser);
    }
    // [END on_start_check_user]

    private void createAccount(String email, String password) {
        Log.d(TAG, "createAccount:" + email);
        if (!validateForm()) {
            return;
        }

        showProgressDialog();

        // [START create_user_with_email]
        mAuth.createUserWithEmailAndPassword(email, password)
                .addOnCompleteListener(this, new OnCompleteListener<AuthResult>() {
                    @Override
                    public void onComplete(@NonNull Task<AuthResult> task) {
                        if (task.isSuccessful()) {
                            // Sign in success, update UI with the signed-in user's information
                            Log.d(TAG, "createUserWithEmail:success");
                            FirebaseUser user = mAuth.getCurrentUser();
                            updateUI(user);
                        } else {
                            // If sign in fails, display a message to the user.
                            Log.w(TAG, "createUserWithEmail:failure", task.getException());
                            Toast.makeText(EmailPasswordActivity.this, "Authentication failed.",
                                    Toast.LENGTH_SHORT).show();
                            updateUI(null);
                        }

                        // [START_EXCLUDE]
                        hideProgressDialog();
                        // [END_EXCLUDE]
                    }
                });
        // [END create_user_with_email]
    }

    private void signIn(String email, String password) {
        Log.d(TAG, "signIn:" + email);
        if (!validateForm()) {
            return;
        }

        showProgressDialog();

        // [START sign_in_with_email]
        mAuth.signInWithEmailAndPassword(email, password)
                .addOnCompleteListener(this, new OnCompleteListener<AuthResult>() {
                    @Override
                    public void onComplete(@NonNull Task<AuthResult> task) {
                        if (task.isSuccessful()) {
                            // Sign in success, update UI with the signed-in user's information
                            Log.d(TAG, "signInWithEmail:success");
                            FirebaseUser user = mAuth.getCurrentUser();
                            updateUI(user);
                        } else {
                            // If sign in fails, display a message to the user.
                            Log.w(TAG, "signInWithEmail:failure", task.getException());
                            Toast.makeText(EmailPasswordActivity.this, "Authentication failed.",
                                    Toast.LENGTH_SHORT).show();
                            updateUI(null);
                        }

                        // [START_EXCLUDE]
                        if (!task.isSuccessful()) {
                            mStatusTextView.setText("認証に失敗しました");
                        }
                        hideProgressDialog();
                        // [END_EXCLUDE]
                    }
                });
        // [END sign_in_with_email]
    }

    private void signOut() {
        mAuth.signOut();
        updateUI(null);
    }

    private void sendEmailVerification() {
        // Disable button
        findViewById(R.id.verify_email_button).setEnabled(false);

        // Send verification email
        // [START send_email_verification]
        final FirebaseUser user = mAuth.getCurrentUser();
        user.sendEmailVerification()
                .addOnCompleteListener(this, new OnCompleteListener<Void>() {
                    @Override
                    public void onComplete(@NonNull Task<Void> task) {
                        // [START_EXCLUDE]
                        // Re-enable button
                        findViewById(R.id.verify_email_button).setEnabled(true);

                        if (task.isSuccessful()) {
                            Toast.makeText(EmailPasswordActivity.this,
                                    "Verification email sent to " + user.getEmail(),
                                    Toast.LENGTH_SHORT).show();
                        } else {
                            Log.e(TAG, "sendEmailVerification", task.getException());
                            Toast.makeText(EmailPasswordActivity.this,
                                    "Failed to send verification email.",
                                    Toast.LENGTH_SHORT).show();
                        }
                        // [END_EXCLUDE]
                    }
                });
        // [END send_email_verification]
    }

    private boolean validateForm() {
        boolean valid = true;

        String email = mEmailField.getText().toString();
        if (TextUtils.isEmpty(email)) {
            mEmailField.setError("Required.");
            valid = false;
        } else {
            mEmailField.setError(null);
        }

        String password = mPasswordField.getText().toString();
        if (TextUtils.isEmpty(password)) {
            mPasswordField.setError("Required.");
            valid = false;
        } else {
            mPasswordField.setError(null);
        }

        return valid;
    }

    private void updateUI(FirebaseUser user) {
        hideProgressDialog();
        if (user != null) {
            mStatusTextView.setText(getString(R.string.emailpassword_status_fmt,
                    user.getEmail(), user.isEmailVerified()));
            mDetailTextView.setText(getString(R.string.firebase_status_fmt, user.getUid()));

            findViewById(R.id.email_password_buttons).setVisibility(View.GONE);
            findViewById(R.id.email_password_fields).setVisibility(View.GONE);
            findViewById(R.id.signed_in_buttons).setVisibility(View.VISIBLE);

            findViewById(R.id.verify_email_button).setEnabled(!user.isEmailVerified());
        } else {
            mStatusTextView.setText("サインアウト");
            mDetailTextView.setText(null);

            findViewById(R.id.email_password_buttons).setVisibility(View.VISIBLE);
            findViewById(R.id.email_password_fields).setVisibility(View.VISIBLE);
            findViewById(R.id.signed_in_buttons).setVisibility(View.GONE);
        }
    }

    @Override
    public void onClick(View v) {
        int i = v.getId();
        if (i == R.id.email_create_account_button) {
            createAccount(mEmailField.getText().toString(), mPasswordField.getText().toString());
        } else if (i == R.id.email_sign_in_button) {
            signIn(mEmailField.getText().toString(), mPasswordField.getText().toString());
        } else if (i == R.id.sign_out_button) {
            signOut();
        } else if (i == R.id.verify_email_button) {
            sendEmailVerification();
        }
    }
}