import android.content.Intent
import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import android.view.Menu
import android.view.MenuItem
import android.widget.AdapterView
import android.widget.ArrayAdapter
import android.widget.ImageView
import android.widget.Toast
import kotlinx.android.synthetic.main.activity_form.*
import kotlinx.android.synthetic.main.activity_list.*
import java.text.FieldPosition

class ListActivity : AppCompatActivity() {

    lateinit var adapter : StudentItemAdapter

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

        toFormActivity.setOnClickListener {
            goToFormActivity()
        }
    }

    override fun onResume() {
        super.onResume()
        // buat variabel untuk memanggil class SiswaDataSource
        val siswaDataSource = StudentDataSource(this)
        // membuat variabel untuk menampung data dari function getAll di SiswaDataSource
        val allSiswa = siswaDataSource.getAll()

        adapter = StudentItemAdapter(this)
        adapter.addAll(allSiswa)
        adapter.notifyDataSetChanged()
        listView.adapter = adapter

        listView.setOnItemClickListener(AdapterView.OnItemClickListener {
                parent, view, position, id ->
            viewDetailStudent(position)
        })
    }

    private fun viewDetailStudent(position: Int){
        var intent = Intent(this, DetailActivity::class.java)
        var siswa = adapter.getItem(position)
        // putExtra digunakan untuk memberikan parameter ke activity melalui
        // intent
        intent.putExtra("id", siswa?.id)
        startActivity(intent)

//        Toast.makeText(this, "$position", Toast.LENGTH_SHORT).show()
    }

    override fun onCreateOptionsMenu(menu: Menu?): Boolean {
        // panggil menu dengan inflater
        menuInflater.inflate(R.menu.add, menu)
        return super.onCreateOptionsMenu(menu)
    }

    // digunakan apabila menu di klik
    override fun onOptionsItemSelected(item: MenuItem): Boolean {
        if(item.itemId == R.id.add){
            //intent digunakan untuk pindah activity
            val intent = Intent(this, FormActivity::class.java)
            startActivity(intent)
        }
        return super.onOptionsItemSelected(item)
    }

    fun goToFormActivity(){
        val intent = Intent(this, FormActivity::class.java)
        startActivity(intent)
    }
}