Show failed migrations instead of waiting on them forever

data/src/main/java/mihon/data/database/DatabaseRepositoryImpl.kt

@@ -1,16 +1,29 @@
 package mihon.data.database
 
+import app.cash.sqldelight.db.QueryResult
+import app.cash.sqldelight.db.SqlDriver
 import dev.zacsweers.metro.AppScope
 import dev.zacsweers.metro.ContributesBinding
 import dev.zacsweers.metro.Inject
 import dev.zacsweers.metro.SingleIn
+import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.flow.MutableStateFlow
+import kotlinx.coroutines.withContext
 import mihon.domain.database.repository.DatabaseRepository
 
 @Inject
 @SingleIn(AppScope::class)
 @ContributesBinding(AppScope::class)
-class DatabaseRepositoryImpl : DatabaseRepository {
+class DatabaseRepositoryImpl(
+    // Lazy since the driver reports its migration state here
+    private val driver: Lazy<SqlDriver>,
+) : DatabaseRepository {
 
     override val isMigrating = MutableStateFlow(false)
+
+    override suspend fun awaitOpen() {
+        withContext(Dispatchers.IO) {
+            driver.value.executeQuery(null, "SELECT 1", { QueryResult.Value(Unit) }, 0).await()
+        }
+    }
 }

data/src/main/sqldelight/tachiyomi/migrations/17.sqm

@@ -4,6 +4,19 @@ import kotlin.String;
 import kotlin.collections.List;
 import kotlinx.serialization.json.JsonObject;
 
+-- ---------------------------------------------------------------------------------------------------------
+-- orphans
+-- ---------------------------------------------------------------------------------------------------------
+
+-- Rows pointing at an entry, chapter or category that no longer exists were written while foreign keys weren't
+-- enforced. Nothing can reach them, and copied over they'd fail the foreign key check that ends the migration.
+DELETE FROM chapters WHERE manga_id NOT IN (SELECT _id FROM mangas);
+DELETE FROM history WHERE chapter_id NOT IN (SELECT _id FROM chapters);
+DELETE FROM mangas_categories
+WHERE manga_id NOT IN (SELECT _id FROM mangas) OR category_id NOT IN (SELECT _id FROM categories);
+DELETE FROM manga_sync WHERE manga_id NOT IN (SELECT _id FROM mangas);
+DELETE FROM excluded_scanlators WHERE manga_id NOT IN (SELECT _id FROM mangas);
+
 -- ---------------------------------------------------------------------------------------------------------
 -- table - manga
 -- ---------------------------------------------------------------------------------------------------------