package com.nexion.defusealarm;

import java.util.ArrayList;
import java.util.List;

import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;

public class DatabaseHandler extends SQLiteOpenHelper {
    // Database Version
    private static final int DATABASE_VERSION = 1;

    // Database Name
    private static final String DATABASE_NAME = "DefuseAlarmList";

    // Contacts table name
    private static final String TABLE_ALARMS = "Alarms";

    // Contacts Table Columns names
    private static final String KEY_ID = "id";
    private static final String KEY_TIME = "time";
    private static final String KEY_ENABLED = "enabled";

    public DatabaseHandler(Context context) {
        super(context, DATABASE_NAME, null, DATABASE_VERSION);
    }

    // Creating Tables
    @Override
    public void onCreate(SQLiteDatabase db) {
        String CREATE_CONTACTS_TABLE = "CREATE TABLE " + TABLE_ALARMS + "("
                + KEY_ID + " INTEGER PRIMARY KEY," + KEY_TIME + " TEXT,"
                + KEY_ENABLED + " INT)";
        db.execSQL(CREATE_CONTACTS_TABLE);
    }

    // Upgrading database
    @Override
    public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
        db.execSQL("DROP TABLE IF EXISTS " + TABLE_ALARMS);
        onCreate(db);
    }

    public void addAlarm(Alarm alarm){
        SQLiteDatabase db = this.getWritableDatabase();

        ContentValues values = new ContentValues();
        values.put(KEY_TIME, alarm.getTime());
        values.put(KEY_ENABLED, alarm.isEnabled());

        // Inserting Row
        db.insert(TABLE_ALARMS, null, values);
        db.close(); // Closing database connection
    }
    public Alarm getAlarm(int id){
        SQLiteDatabase db = this.getReadableDatabase();

        Cursor cursor = db.query(TABLE_ALARMS, new String[] { KEY_ID,
                KEY_TIME, KEY_ENABLED }, KEY_ID + "=?",
                new String[] { String.valueOf(id) }, null, null, null, null);
        if (cursor != null)
            cursor.moveToFirst();

        Alarm alarm = new Alarm(Integer.parseInt(cursor.getString(0)),
                cursor.getString(1), Integer.parseInt(cursor.getString(2)));
        // return alarm
        return alarm;
    }
    public List<Alarm> getAllAlarms(){
        List<Alarm> alarmList = new ArrayList<Alarm>();
        // Select All Query
        String selectQuery = "SELECT  * FROM " + TABLE_ALARMS;

        SQLiteDatabase db = this.getWritableDatabase();
        Cursor cursor = db.rawQuery(selectQuery, null);

        // looping through all rows and adding to list
        if (cursor.moveToFirst()) {
            do {
                Alarm alarm = new Alarm();
                alarm.setId(Integer.parseInt(cursor.getString(0)));
                alarm.setTime(cursor.getString(1));
                alarm.setEnabled(Integer.parseInt(cursor.getString(2)));
                // Adding alarm to list
                alarmList.add(alarm);
            } while (cursor.moveToNext());
        }

        // return alarm list
        return alarmList;
    }
    public int getAlarmCount(){
        String countQuery = "SELECT  * FROM " + TABLE_ALARMS;
        SQLiteDatabase db = this.getReadableDatabase();
        Cursor cursor = db.rawQuery(countQuery, null);
        cursor.close();

        // return count
        return cursor.getCount();
    }
    public int updateAlarm(Alarm alarm){
        SQLiteDatabase db = this.getWritableDatabase();

        ContentValues values = new ContentValues();
        values.put(KEY_TIME, alarm.getTime());
        values.put(KEY_ENABLED, alarm.isEnabled());

        // updating row
        return db.update(TABLE_ALARMS, values, KEY_ID + " = ?",
                new String[] { String.valueOf(alarm.getId()) });
    }
    public void deleteAlarm(Alarm alarm){
        SQLiteDatabase db = this.getWritableDatabase();
        db.delete(TABLE_ALARMS, KEY_ID + " = ?",
                new String[] { String.valueOf(alarm.getId()) });
        db.close();
    }
}