core: Add realm provider

DB/src/commonMain/kotlin/com/infomaniak/multiplatform_swisstransfer/db/RealmProvider.kt

@@ -0,0 +1,59 @@
+/*
+ * Infomaniak SwissTransfer - Multiplatform
+ * Copyright (C) 2024 Infomaniak Network SA
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package com.infomaniak.multiplatform_swisstransfer.db
+
+import com.infomaniak.multiplatform_swisstransfer.db.models.ContainerDB
+import com.infomaniak.multiplatform_swisstransfer.db.models.FileDB
+import com.infomaniak.multiplatform_swisstransfer.db.models.TransferDB
+import com.infomaniak.multiplatform_swisstransfer.db.models.setting.AppSettings
+import com.infomaniak.multiplatform_swisstransfer.db.models.upload.UploadTasks
+import io.realm.kotlin.Realm
+import io.realm.kotlin.RealmConfiguration
+
+internal class RealmProvider {
+
+    private val realmAppSettingsConfiguration = RealmConfiguration
+        .Builder(schema = setOf(AppSettings::class))
+        .name("AppSettings")
+        .build()
+
+    private val realmUploadTasksConfiguration = RealmConfiguration
+        .Builder(schema = setOf(UploadTasks::class))
+        .name("UploadTasks")
+        .build()
+
+    private val realmTransfersConfiguration = RealmConfiguration
+        .Builder(schema = setOf(TransferDB::class, ContainerDB::class, FileDB::class))
+        .name(transferRealmName())
+        .build()
+
+    private fun transferRealmName(userId: Int = 0) = "Transfers-$userId"
+
+    val realmAppSettings by lazy { Realm.open(realmAppSettingsConfiguration) }
+
+    val realmUploadTasks by lazy { Realm.open(realmUploadTasksConfiguration) }
+
+    fun realmTransfers(userId: Int): Realm {
+        return Realm.open(realmTransfersConfiguration)
+    }
+
+    fun closeRealm(realm: Realm) {
+        realm.close()
+    }
+}