ProjectLaogai/app/src/main/java/org/mosad/seil0/projectlaogai/MainActivity.kt

/**
 * ProjectLaogai
 *
 * Copyright 2018  <seil0@mosad.xyz>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
 * MA 02110-1301, USA.
 *
 */

package org.mosad.seil0.projectlaogai

import android.os.Bundle
import com.google.android.material.snackbar.Snackbar
import com.google.android.material.navigation.NavigationView
import androidx.core.view.GravityCompat
import androidx.appcompat.app.ActionBarDrawerToggle
import androidx.appcompat.app.AppCompatActivity
import android.view.Menu
import android.view.MenuItem
import androidx.fragment.app.FragmentTransaction
import kotlinx.android.synthetic.main.activity_main.*
import kotlinx.android.synthetic.main.app_bar_main.*

class MainActivity : AppCompatActivity(), NavigationView.OnNavigationItemSelectedListener {

    //TODO make toolbar and navbar global

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)
        setSupportActionBar(toolbar)

        //init home fragment TODO make a abstract fragment class
        val homeFragment = HomeFragment()
        val fragmentTransaction: FragmentTransaction = supportFragmentManager.beginTransaction()
        fragmentTransaction.replace(R.id.fragment_container, homeFragment)
        fragmentTransaction.commit()

        val toggle = ActionBarDrawerToggle(
            this, drawer_layout, toolbar, R.string.navigation_drawer_open, R.string.navigation_drawer_close
        )
        drawer_layout.addDrawerListener(toggle)
        toggle.syncState()

        nav_view.setNavigationItemSelectedListener(this)
    }

    override fun onBackPressed() {
        if (drawer_layout.isDrawerOpen(GravityCompat.START)) {
            drawer_layout.closeDrawer(GravityCompat.START)
        } else {
            super.onBackPressed()
        }
    }

    override fun onCreateOptionsMenu(menu: Menu): Boolean {
        // Inflate the menu; this adds items to the action bar if it is present.
        menuInflater.inflate(R.menu.main, menu)
        return true
    }

    override fun onOptionsItemSelected(item: MenuItem): Boolean {
        // Handle action bar item clicks here. The action bar will
        // automatically handle clicks on the Home/Up button, so long
        // as you specify a parent activity in AndroidManifest.xml.
        return when (item.itemId) {
            R.id.action_settings -> true
            else -> super.onOptionsItemSelected(item)
        }
    }

    override fun onNavigationItemSelected(item: MenuItem): Boolean {
        // Handle navigation view item clicks here.
        when (item.itemId) {
            R.id.nav_home -> {
                val homeFragment = HomeFragment()
                val fragmentTransaction: FragmentTransaction = supportFragmentManager.beginTransaction()
                fragmentTransaction.replace(R.id.fragment_container, homeFragment)
                fragmentTransaction.commit()
            }
            R.id.nav_mensa -> {
                val mensaFragment: MensaFragment = MensaFragment()
                val fragmentTransaction: FragmentTransaction = supportFragmentManager.beginTransaction()
                fragmentTransaction.replace(R.id.fragment_container, mensaFragment)
                fragmentTransaction.commit()
            }
            R.id.nav_timetable -> {

            }
            R.id.nav_moodle -> {

            }
            R.id.nav_email -> {

            }
            R.id.nav_settings -> {
                val settingsFragment = SettingsFragment()
                val fragmentTransaction: FragmentTransaction = supportFragmentManager.beginTransaction()
                fragmentTransaction.replace(R.id.fragment_container, settingsFragment)
                fragmentTransaction.commit()
            }
        }

        drawer_layout.closeDrawer(GravityCompat.START)
        return true
    }
}