package com.darshanbshah.odsystem; import android.app.AlertDialog; import android.content.DialogInterface; import android.content.Intent; import android.graphics.Color; import android.net.Uri; 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.TextView; 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; } } String []recepients = {}; 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<String> adv_list = 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(); } } for(DataSnapshot dsp : dataSnapshot.getChildren()){ adv_list.add(String.valueOf(dsp.getValue())); Log.e("EMAILS: ", String.valueOf(dsp.getValue())); } } @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()) { if (dataSnapshot.getKey().equals(adv_name)) { Log.e("D_VAL", d.getValue().toString()); random.add(d.getValue().toString()); } } // for (int i = 0; i < random.size(); i++) { // Log.e("RANDOM_VALS", data.getKey() + ' ' + random.get(i)); // // } for (int i = 0; i < random.size(); 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); } catch (Exception e) { } } } random.clear(); } 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(); Log.e("RCPT", String.valueOf(adv_list.size())); 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) { } }); recepients = adv_list.toArray(new String[0]); Log.e("RCPTSIZE", String.valueOf(recepients.length)); for (int i = 0; i < recepients.length; i++) { Log.e("RECPT", recepients[i]); } TextView textView = (TextView)findViewById(R.id.listText); textView.setTextColor(Color.parseColor("#12bfac")); Intent intent = new Intent(Intent.ACTION_SEND); intent.setData(Uri.parse("mailto:")); intent.putExtra(Intent.EXTRA_EMAIL, recepients); intent.putExtra(Intent.EXTRA_SUBJECT, "OD Request"); intent.putExtra(Intent.EXTRA_TEXT, "Reason: " + reason + '\n' + "From: " + from + '\n' + "To: " + to + '\n' + "Full day: " + fullday); intent.setType("message/rfc822"); Intent chooser = Intent.createChooser(intent, "Send email"); startActivity(chooser); } }); 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(); } }