Slots now are fetched from firebase

app/src/main/java/com/example/infiniteLoop/parkingo/category_wise_availability.java

 package com.example.infiniteLoop.parkingo;
 
 import android.app.Activity;
+import android.app.ProgressDialog;
 import android.content.Intent;
 import android.os.Bundle;
 
@@ -20,6 +21,7 @@ public class category_wise_availability extends Activity {
     String result;
     ListView lv;
     ArrayList slots;
+    ProgressDialog progress;
     @Override
     protected void onCreate(@Nullable Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
@@ -32,35 +34,35 @@ public class category_wise_availability extends Activity {
         if(v.getId()==R.id.car){
             if(checked){
                 sqlite_ops so=new sqlite_ops(this);
-                slots=so.getFreeSlots("car");
-                if(slots.size()>0){
-                    ArrayAdapter aa=new ArrayAdapter(this,R.layout.spinner_layout,slots);
-                    lv.setAdapter(aa);
-                }
-                else{
-                    ArrayAdapter aa=new ArrayAdapter(this,R.layout.spinner_layout,new String[]{"No free slots"});
-                    lv.setAdapter(aa);
-                }
-                lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {
-                    @Override
-                    public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
-                        if(slots.size()>0){
-                        result=slots.get(i).toString();
-                        sendResult();
-                        }
-                    }
-                });
+                slots=so.getFreeSlots(this,"car");
+                progress = new ProgressDialog(category_wise_availability.this);
+                progress.setTitle("Loading");
+                progress.setMessage("Wait while loading...");
+                progress.setCancelable(false); // disable dismiss by tapping outside of the dialog
+                progress.show();
             }
 
         }
         else if(v.getId()==R.id.bike){
             if(checked){
                 sqlite_ops so=new sqlite_ops(this);
-                slots=so.getFreeSlots("bike");
+                slots=so.getFreeSlots(this,"bike");
+                progress = new ProgressDialog(category_wise_availability.this);
+                progress.setTitle("Loading");
+                progress.setMessage("Wait while loading...");
+                progress.setCancelable(false); // disable dismiss by tapping outside of the dialog
+                progress.show();
+            }
+        }
+
+
+    }
+
+    public void returnSlots(final ArrayList slots){
+        progress.dismiss();
         if(slots.size()>0){
                     ArrayAdapter aa=new ArrayAdapter(this,R.layout.spinner_layout,slots);
                     lv.setAdapter(aa);
-
                 }
                 else{
                     ArrayAdapter aa=new ArrayAdapter(this,R.layout.spinner_layout,new String[]{"No free slots"});
@@ -69,17 +71,14 @@ public class category_wise_availability extends Activity {
                 lv.setOnItemClickListener(new AdapterView.OnItemClickListener() {
                     @Override
                     public void onItemClick(AdapterView<?> adapterView, View view, int i, long l) {
-                        if(slots.size()>0) {
-                            result = slots.get(i).toString();
+                        if(slots.size()>0){
+                        result=slots.get(i).toString();
                         sendResult();
                         }
                     }
                 });
     }
-        }
-
 
-    }
     public void sendResult(){
         Intent returnResult=getIntent();
         returnResult.putExtra("result",result);

app/src/main/java/com/example/infiniteLoop/parkingo/login_activity.java

@@ -35,6 +35,8 @@ public class login_activity extends Activity {
     TextView logmsg;
     @Override
     protected void onCreate(Bundle savedInstanceState) {
+        final sqlite_ops so=new sqlite_ops(login_activity.this);
+        so.initFirebase();
         super.onCreate(savedInstanceState);
         setContentView(R.layout.login_layout);
         username=findViewById(R.id.username);
@@ -94,6 +96,7 @@ public class login_activity extends Activity {
 
                     sqlite_ops so=new sqlite_ops(login_activity.this);
                         //so.insert_login_details();
+
                     login li=new login();
                     li.setPass(uname);
                     li.setUname(pass);
@@ -129,6 +132,7 @@ public class login_activity extends Activity {
             }
         });
 
+
     }
 
     public void loginSuccess() {

app/src/main/java/com/example/infiniteLoop/parkingo/sqlite_ops.java

@@ -9,6 +9,8 @@ import android.util.Log;
 import androidx.annotation.NonNull;
 
 import com.google.android.gms.tasks.OnCompleteListener;
+import com.google.android.gms.tasks.OnFailureListener;
+import com.google.android.gms.tasks.OnSuccessListener;
 import com.google.android.gms.tasks.Task;
 import com.google.firebase.firestore.DocumentReference;
 import com.google.firebase.firestore.DocumentSnapshot;
@@ -18,18 +20,23 @@ import com.google.firebase.firestore.QueryDocumentSnapshot;
 import com.google.firebase.firestore.QuerySnapshot;
 
 import java.util.ArrayList;
+import java.util.Collections;
 import java.util.HashMap;
+import java.util.Map;
 
 import static android.content.ContentValues.TAG;
 
 public class sqlite_ops extends SQLiteOpenHelper{
     FirebaseFirestore fdb;
+
     public static final int DATABASE_VERSION=1;
     public static final String DATABASE_NAME="parkingo.db";
     public sqlite_ops(Context context) {
         super(context, DATABASE_NAME, null, DATABASE_VERSION);
     }
     public void onCreate(SQLiteDatabase db){
+       // initFirebase();
+        Log.d("Firebase","INside Oncreate sql");
         db.execSQL("create table admin(username varchar unique,password varchar)");
         db.execSQL("create table slots(id integer primary key autoincrement ,slot varchar unique,status int,category text)");
         db.execSQL("create table records(tkt_no integer  primary key autoincrement,name varchar,mobile int,slot varchar,vehicle varchar,check_in timestamp,check_out timestamp,isempty int)");
@@ -43,12 +50,61 @@ public class sqlite_ops extends SQLiteOpenHelper{
                     slot+="0";
                 slot+=j;
                 if(i<2)
+                    //slotObj.put("category","BIKE");
                     db.execSQL("insert into slots values(null,'"+slot+"',0,'BIKE')");
                 else
+                    //slotObj.put("category","CAR");
                     db.execSQL("insert into slots values(null,'"+slot+"',0,'CAR')");
+                //slotObj.put("slot",slot);
+
+            }
+        }
+
+    }
+
+    public void initFirebase() {
+        //AddSlotsToFirebase();
+        fdb = FirebaseFirestore.getInstance();
+    }
+
+    public void AddSlotsToFirebase() {
+        Log.d("Firebase","Adding slots");
+        Map<String, Object> slotObj = new HashMap<>();
+        slotObj.put("status", 0);
+        //city.put("state", "CA");
+        //city.put("country", "USA");
+        for(int i=0;i<5;i++){
+            for(int j=0;j<15;j++){
+                char s=(char)(i+65);
+                String slot=Character.toString(s);
+                if(j<10)
+                    slot+="0";
+                slot+=j;
+                if(i<2)
+                    slotObj.put("category","BIKE");
+                    //db.execSQL("insert into slots values(null,'"+slot+"',0,'BIKE')");
+                else
+                    slotObj.put("category","CAR");
+                //db.execSQL("insert into slots values(null,'"+slot+"',0,'CAR')");
+                slotObj.put("slot",slot);
+                fdb.collection("slots")
+                        .add(slotObj)
+                        .addOnSuccessListener(new OnSuccessListener<DocumentReference>() {
+                            @Override
+                            public void onSuccess(DocumentReference docref) {
+                                Log.d(TAG, "DocumentSnapshot successfully written!");
+                            }
+                        })
+                        .addOnFailureListener(new OnFailureListener() {
+                            @Override
+                            public void onFailure(@NonNull Exception e) {
+                                Log.w(TAG, "Error writing document", e);
+                            }
+                        });
             }
         }
 
+
     }
 
     @Override
@@ -64,7 +120,8 @@ public class sqlite_ops extends SQLiteOpenHelper{
 
 
     public boolean fetch_login_details(login li,final login_activity la){
-      /*  SQLiteDatabase db= this.getReadableDatabase();
+      // SQLiteDatabase db= this.getReadableDatabase();
+       /*
         //Log.d(TAG, "fetch_login_details: "+li.getUname()+" "+li.getPass());
         Cursor cursor = db.query("admin",new String[]{"username","password"},"username"+ "=?",
                 new String[]{li.getUname()}, null, null, null, null);
@@ -103,15 +160,21 @@ public class sqlite_ops extends SQLiteOpenHelper{
             public void onComplete(@NonNull Task<QuerySnapshot> task) {
                 if(task.isSuccessful()) {
                         QuerySnapshot documentSnapshot = task.getResult();
+//                        Log.d("Firebase",documentSnapshot.);
+                        for (QueryDocumentSnapshot document : task.getResult()) {
+                            Log.d(TAG, document.getId() + " => " + document.getData());
+                        }
                         if(documentSnapshot.isEmpty()) {
                             la.loginFailure();
+                            for (QueryDocumentSnapshot document : task.getResult()) {
+                                Log.d(TAG, document.getId() + " => " + document.getData());
+                            }
                             Log.d("Login","Failure");
                         }else {
                             la.loginSuccess();
                             Log.d("Login", "Success");
                         }
                 }else
-                    la.loginFailure();
                     Log.d("Login","Failure");
                 }
 
@@ -130,24 +193,59 @@ public class sqlite_ops extends SQLiteOpenHelper{
         return true;
     }
 
-    public ArrayList getFreeSlots(String category){
+    public ArrayList getFreeSlots(final category_wise_availability cd, String category){
+
         String[] cat=new String[]{category.toUpperCase(),"0"};
-        ArrayList slots=new ArrayList();
-        SQLiteDatabase db= this.getWritableDatabase();
-        Cursor cursor = db.query("slots",new String[]{"slot"},"category=? and status=?",
-                cat, null, null, null, null);
-        if(cursor!=null){
-            cursor.moveToFirst();
-            if(cursor.getCount()!=0){
-            do{
-                String data = cursor.getString(cursor.getColumnIndex("slot"));
-                slots.add(data);
-                // do what ever you want here
-            }while(cursor.moveToNext());
+        final ArrayList slots=new ArrayList();
+        // SQLiteDatabase db= this.getWritableDatabase();
+        // Cursor cursor = db.query("slots",new String[]{"slot"},"category=? and status=?",
+        //         cat, null, null, null, null);
+        // if(cursor!=null){
+        //     cursor.moveToFirst();
+        //     if(cursor.getCount()!=0){
+        //     do{
+        //         String data = cursor.getString(cursor.getColumnIndex("slot"));
+        //         slots.add(data);
+        //         // do what ever you want here
+        //     }while(cursor.moveToNext());
+        //     }
+
+        // }
+        // db.close();
+        Log.d("Slots",slots.toString());
+        fdb = FirebaseFirestore.getInstance();
+        Query query = fdb.collection("slots").whereEqualTo("category",cat[0])
+                .whereEqualTo("status",0);
+        if(query!=null)
+            query.get().addOnCompleteListener(new OnCompleteListener<QuerySnapshot>() {
+                @Override
+                public void onComplete(@NonNull Task<QuerySnapshot> task) {
+                    if(task.isSuccessful()) {
+                        QuerySnapshot documentSnapshot = task.getResult();
+//                        Log.d("Firebase",documentSnapshot.);
+                        for (QueryDocumentSnapshot document : task.getResult()) {
+                            Log.d(TAG, document.getId() + " => " + document.getData());
+                            slots.add(document.getData().get("slot"));
+                        }
+                        if(documentSnapshot.isEmpty()) {
+                           // la.loginFailure();
+                            for (QueryDocumentSnapshot document : task.getResult()) {
+                                Log.d(TAG, document.getId() + " => " + document.getData());
                             }
                             
+                            Log.d("Login","Failure");
+                        }else {
+                           // la.loginSuccess();
+                            Collections.sort(slots);
+                            cd.returnSlots(slots);
+                            Log.d("Login", "Success");
                         }
-        db.close();
+                    }else
+                        Log.d("Login","Failure");
+                }
+
+            });
+        Log.d("Slots",slots.toString());
         return slots;
     }
     public ArrayList getAllSlots(String category){