From 38e93086c8d62f98ed676b1c3e47d2a78c9376a4 Mon Sep 17 00:00:00 2001
From: AntsyLich <59261191+AntsyLich@users.noreply.github.com>
Date: Thu, 1 Oct 2026 05:35:00 +0600
Subject: [PATCH] Configure database connections like Room

---
 .../java/tachiyomi/data/DatabaseBindings.kt   | 25 ++++++++++++++++++-
 1 file changed, 24 insertions(+), 1 deletion(-)

diff --git a/data/src/main/java/tachiyomi/data/DatabaseBindings.kt b/data/src/main/java/tachiyomi/data/DatabaseBindings.kt
index e84037e6a..667442866 100644
--- a/data/src/main/java/tachiyomi/data/DatabaseBindings.kt
+++ b/data/src/main/java/tachiyomi/data/DatabaseBindings.kt
@@ -1,12 +1,20 @@
 package tachiyomi.data
 
+import android.app.ActivityManager
 import android.content.Context
+import androidx.core.content.getSystemService
+import androidx.sqlite.SQLiteConnection
+import androidx.sqlite.SQLiteDriver
 import androidx.sqlite.driver.bundled.BundledSQLiteDriver
+import androidx.sqlite.execSQL
 import app.cash.sqldelight.db.SqlDriver
+import com.eygraber.sqldelight.androidx.driver.AndroidxSqliteConcurrencyModel.MultipleReadersSingleWriter
 import com.eygraber.sqldelight.androidx.driver.AndroidxSqliteConfiguration
+import com.eygraber.sqldelight.androidx.driver.AndroidxSqliteConnectionFactory
 import com.eygraber.sqldelight.androidx.driver.AndroidxSqliteDatabaseType
 import com.eygraber.sqldelight.androidx.driver.AndroidxSqliteDriver
 import com.eygraber.sqldelight.androidx.driver.FileProvider
+import com.eygraber.sqldelight.androidx.driver.SqliteJournalMode
 import dev.zacsweers.metro.AppScope
 import dev.zacsweers.metro.BindingContainer
 import dev.zacsweers.metro.ContributesTo
@@ -17,15 +25,30 @@ import dev.zacsweers.metro.SingleIn
 @BindingContainer
 object DatabaseBindings {
 
+    /**
+     * Configured like Room's connection manager: WAL unless the device is low on RAM, one writer with four
+     * readers (one in TRUNCATE mode), and a busy timeout on every connection.
+     */
     @Provides
     @SingleIn(AppScope::class)
     fun providesSqlDriver(context: Context): SqlDriver {
+        val isWal = context.getSystemService<ActivityManager>()?.isLowRamDevice ?: true
         return AndroidxSqliteDriver(
-            driver = BundledSQLiteDriver(),
+            connectionFactory = object : AndroidxSqliteConnectionFactory {
+                override val driver: SQLiteDriver = BundledSQLiteDriver()
+
+                override fun createConnection(name: String): SQLiteConnection {
+                    return driver.open(name).apply {
+                        execSQL("PRAGMA busy_timeout = 3000")
+                    }
+                }
+            },
             databaseType = AndroidxSqliteDatabaseType.FileProvider(context, "tachiyomi.db"),
             schema = Database.Schema,
             configuration = AndroidxSqliteConfiguration(
                 isForeignKeyConstraintsEnabled = true,
+                journalMode = if (isWal) SqliteJournalMode.WAL else SqliteJournalMode.Truncate,
+                concurrencyModel = MultipleReadersSingleWriter(isWal = isWal, nonWalCount = 1, walCount = 4),
             ),
         )
     }