package com.darshanbshah.odsystem;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.util.Log;
import android.view.View;
import android.widget.AdapterView;
import android.widget.ListView;
import android.widget.Toast;
import com.google.firebase.auth.FirebaseAuth;
import com.google.firebase.database.ChildEventListener;
import com.google.firebase.database.DataSnapshot;
import com.google.firebase.database.DatabaseError;
import com.google.firebase.database.DatabaseReference;
import com.google.firebase.database.FirebaseDatabase;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.Hashtable;
import java.util.List;
public class TeacherActivity extends AppCompatActivity {
class ODTable {
String flag, reason, from, to, fullday;
public ODTable(String flag, String reason, String from, String to, String fullday) {
this.flag = flag;
this.reason = reason;
this.from = from;
this.to = to;
this.fullday = fullday;
}
}
ODTable table;
int i = 0;
AlertDialog.Builder builder;
DataProvider itemValue;
FirebaseAuth mAuth;
FirebaseDatabase database = FirebaseDatabase.getInstance();
DatabaseReference root;
DatabaseReference adv;
DatabaseReference student;
DatabaseReference od, od_flag, od_student;
String message = "";
List<String> uid_list = new ArrayList<String>();
HashMap<String, String> uid_map = new HashMap<String, String>();
HashMap<String, String> student_map = new HashMap<String, String>();
Hashtable<String, ODTable> odtable = new Hashtable<String, ODTable>();
ListView listView;
CustomListAdapter adapter;
String adv_name, key, value, uid = "";
List<String> roll = new ArrayList<String>();
List<String> random = new ArrayList<String>();
List<DatabaseReference> od_student_list = new ArrayList<DatabaseReference>();
String flag = "", reason = "", from = "", to = "", fullday = "";
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_teacher);
mAuth = FirebaseAuth.getInstance();
root = database.getReference();
od = root.child("OD");
adv = root.child("Advisors");
student = root.child("Student");
listView = (ListView)findViewById(R.id.listView);
student.addChildEventListener(new ChildEventListener() {
@Override
public void onChildAdded(DataSnapshot dataSnapshot, String s) {
for (DataSnapshot data : dataSnapshot.getChildren()) {
uid = dataSnapshot.getKey();
if (data.getKey().toString().equals("RollNumber")) {
Log.e("MAPVAL", data.getValue().toString());
roll.add(data.getValue().toString());
}
}
for (int a = 0; a < roll.size(); a++) {
uid_map.put(uid, roll.get(a));
}
}
@Override
public void onChildChanged(DataSnapshot dataSnapshot, String s) {
}
@Override
public void onChildRemoved(DataSnapshot dataSnapshot) {
}
@Override
public void onChildMoved(DataSnapshot dataSnapshot, String s) {
}
@Override
public void onCancelled(DatabaseError databaseError) {
}
});
adv.addChildEventListener(new ChildEventListener() {
@Override
public void onChildAdded(DataSnapshot dataSnapshot, String s) {
for (DataSnapshot data : dataSnapshot.getChildren()) {
if (mAuth.getCurrentUser().getEmail().equals(data.getValue().toString())) {
adv_name = dataSnapshot.getKey();
}
}
}
@Override
public void onChildChanged(DataSnapshot dataSnapshot, String s) {
}
@Override
public void onChildRemoved(DataSnapshot dataSnapshot) {
}
@Override
public void onChildMoved(DataSnapshot dataSnapshot, String s) {
}
@Override
public void onCancelled(DatabaseError databaseError) {
}
});
od.addChildEventListener(new ChildEventListener() {
@Override
public void onChildAdded(DataSnapshot dataSnapshot, String s) {
if (dataSnapshot.getKey().equals(adv_name)) {
Log.e("ADV_NAME", dataSnapshot.getKey());
for (DataSnapshot data : dataSnapshot.getChildren()) {
Log.e("OD_LIST", data.getKey() + " " + data.getValue());
uid_list.add(data.getKey());
}
}
for (DataSnapshot data : dataSnapshot.getChildren()) {
for (DataSnapshot d : data.getChildren()) {
Log.e("DATA_KEY", dataSnapshot.getKey());
if (dataSnapshot.getKey().equals(adv_name))
random.add(d.getValue().toString());
}
// for (int i = 0; i < random.size(); i++) {
// Log.e("RANDOM_VALS", data.getKey() + ' ' + random.get(i));
//
// }
if (random.size() != 0) {
try {
flag = random.get(0);
from = random.get(1);
fullday = random.get(2);
reason = random.get(3);
to = random.get(4);
table = new ODTable(flag, reason, from, to, fullday);
odtable.put(data.getKey(), table);
random.clear();
}
catch (Exception e) {
}
}
}
adapter = new CustomListAdapter(getApplicationContext(), R.layout.list_item);
listView.setAdapter(adapter);
Log.e("UIDLIST_SIZE", String.valueOf(uid_map.size()));
for (int i = 0; i < uid_list.size(); i++) {
key = uid_list.get(i);
value = uid_map.get(key);
try {
if (odtable.get(key).flag.equals("1")) {
DataProvider provider = new DataProvider(key, value, odtable.get(key).reason, odtable.get(key).from, odtable.get(key).to);
adapter.add(provider);
}
}
catch (Exception e) {
}
}
}
@Override
public void onChildChanged(DataSnapshot dataSnapshot, String s) {
}
@Override
public void onChildRemoved(DataSnapshot dataSnapshot) {
}
@Override
public void onChildMoved(DataSnapshot dataSnapshot, String s) {
}
@Override
public void onCancelled(DatabaseError databaseError) {
}
});
listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, final int position, long id) {
// Toast.makeText(getApplicationContext(), String.valueOf(position), Toast.LENGTH_SHORT).show();
builder = new AlertDialog.Builder(TeacherActivity.this);
builder.setPositiveButton("Approve", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
od.addChildEventListener(new ChildEventListener() {
@Override
public void onChildAdded(DataSnapshot dataSnapshot, String s) {
DataProvider item_key = (DataProvider)adapter.getItem(position);
String item = item_key.getKey();
// Toast.makeText(getApplicationContext(), item, Toast.LENGTH_SHORT).show();
if (dataSnapshot.getKey().equals(adv_name)) {
for (DataSnapshot data : dataSnapshot.getChildren()) {
if (data.getKey().equals(item)) {
od_flag = od.child(adv_name).child(item).child("flag");
od_flag.setValue(0);
od_student = od.child(adv_name).child(item);
od_student.removeValue();
}
}
}
}
@Override
public void onChildChanged(DataSnapshot dataSnapshot, String s) {
}
@Override
public void onChildRemoved(DataSnapshot dataSnapshot) {
}
@Override
public void onChildMoved(DataSnapshot dataSnapshot, String s) {
}
@Override
public void onCancelled(DatabaseError databaseError) {
}
});
}
});
itemValue = (DataProvider) adapter.getItem(position);
builder.setMessage("Take Action".toUpperCase());
builder.setNegativeButton("Cancel", new DialogInterface.OnClickListener() {
@Override
public void onClick(DialogInterface dialog, int which) {
}
});
AlertDialog dialog = builder.create();
dialog.show();
}
});
}
public void signOut(View view) {
mAuth.signOut();
startActivity(new Intent(this, Login.class));
finish();
}
}