create the database holding alarms

app/src/main/kotlin/com/simplemobiletools/clock/helpers/DBHelper.kt

@@ -0,0 +1,42 @@
+package com.simplemobiletools.clock.helpers
+
+import android.content.Context
+import android.database.sqlite.SQLiteDatabase
+import android.database.sqlite.SQLiteOpenHelper
+import android.util.Log
+
+class DBHelper private constructor(val context: Context) : SQLiteOpenHelper(context, DB_NAME, null, DB_VERSION) {
+    private val ALARMS_TABLE_NAME = "contacts"
+    private val COL_ID = "id"
+    private val COL_TIME_IN_MINUTES = "time_in_minutes"
+    private val COL_DAYS = "days"
+    private val COL_IS_ENABLED = "is_enabled"
+    private val COL_VIBRATE = "vibrate"
+    private val COL_SOUND_URI = "sound_uri"
+    private val COL_LABEL = "label"
+
+    private val mDb = writableDatabase
+
+    companion object {
+        private const val DB_VERSION = 1
+        const val DB_NAME = "alarms.db"
+        var dbInstance: DBHelper? = null
+
+        fun newInstance(context: Context): DBHelper {
+            if (dbInstance == null)
+                dbInstance = DBHelper(context)
+
+            return dbInstance!!
+        }
+    }
+
+    override fun onCreate(db: SQLiteDatabase) {
+        db.execSQL("CREATE TABLE $ALARMS_TABLE_NAME ($COL_ID INTEGER PRIMARY KEY AUTOINCREMENT, $COL_TIME_IN_MINUTES INTEGER, $COL_DAYS INTEGER, " +
+                "$COL_IS_ENABLED INTEGER, $COL_VIBRATE INTEGER, $COL_SOUND_URI TEXT, $COL_LABEL TEXT)")
+        Log.e("DEBUG", "creating")
+    }
+
+    override fun onUpgrade(db: SQLiteDatabase, oldVersion: Int, newVersion: Int) {
+
+    }
+}