package id.seedgrow.notes

import android.content.Intent
import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import android.widget.Toast
import com.google.android.gms.auth.api.signin.GoogleSignIn
import com.google.android.gms.auth.api.signin.GoogleSignInAccount
import com.google.android.gms.auth.api.signin.GoogleSignInClient
import com.google.android.gms.auth.api.signin.GoogleSignInOptions
import com.google.android.gms.common.api.ApiException
import com.google.android.gms.tasks.Task
import com.google.firebase.auth.FirebaseAuth
import com.google.firebase.auth.GoogleAuthProvider
import kotlinx.android.synthetic.main.activity_login.*

class LoginActivity : AppCompatActivity() {
    val RC_SIGN_IN: Int = 1

    lateinit var  mGoogleSignInClient: GoogleSignInClient
    lateinit var mGoogleSignInOptions: GoogleSignInOptions

    private lateinit var firebaseAuth: FirebaseAuth

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_login)

        configureGoogleSignIn()
        setupUI()
        firebaseAuth = FirebaseAuth.getInstance()

    }

    private fun setupUI() {
        btn_signin.setOnClickListener {
            signIn()
        }
    }

    private fun signIn() {
        val signInIntent: Intent = mGoogleSignInClient.signInIntent
        startActivityForResult(signInIntent, RC_SIGN_IN)
    }

    private fun configureGoogleSignIn() {
        mGoogleSignInOptions = GoogleSignInOptions
            .Builder(GoogleSignInOptions.DEFAULT_SIGN_IN)
            .requestIdToken(getString(R.string.default_web_client_id))
            .requestEmail()
            .build()
        mGoogleSignInClient = GoogleSignIn.getClient(this, mGoogleSignInOptions)

    }

    override fun onActivityResult(requestCode: Int, resultCode: Int, data: Intent?) {
        super.onActivityResult(requestCode, resultCode, data)
        val task: Task<GoogleSignInAccount> = GoogleSignIn.
            getSignedInAccountFromIntent(data)
        try {
            val account = task.getResult(ApiException::class.java)
            if(account != null){
                firebaseAuthWithGoogle(account)
            }
        }catch (e: ApiException){
            Toast.makeText(applicationContext, "Sign in Failed", Toast.LENGTH_LONG).show()
        }
    }

    private fun firebaseAuthWithGoogle(account: GoogleSignInAccount) {
        val credential = GoogleAuthProvider
            .getCredential(account.idToken, null)
        firebaseAuth.signInWithCredential(credential)
            .addOnCompleteListener {
            if (it.isSuccessful){
                val intent = Intent(this, MainActivity::class.java)
                startActivity(intent)
            }else {
                Toast.makeText(applicationContext, "Sign in Failed",
                    Toast.LENGTH_LONG).show()
            }
        }
    }
}