add test + fix sqlite pb

mobile/package.json

@@ -34,7 +34,7 @@
     "android": "expo run:android",
     "ios": "expo run:ios",
     "web": "expo start --web",
-    "test:db": "tsx --test tests/migrations.test.ts tests/repositories.test.ts",
+    "test:db": "tsx --test tests/migrations.test.ts tests/repositories.test.ts tests/dbClient.test.ts",
     "test:migrations": "tsx --test tests/migrations.test.ts",
     "test:api": "tsx --test tests/apiClient.test.ts",
     "test:sync": "tsx --test tests/syncOutbox.test.ts",

mobile/services/db/client.ts

@@ -3,34 +3,109 @@ import { migrateDatabase } from './migrations';
 import { DATABASE_NAME } from './schema';
 
 let database: SQLiteDatabase | null = null;
+let opening: Promise<SQLiteDatabase> | null = null;
 
 async function loadSqlite(): Promise<typeof import('expo-sqlite')> {
   return import('expo-sqlite');
 }
 
-export async function getDatabase(): Promise<SQLiteDatabase> {
-  if (database) return database;
+/**
+ * expo-sqlite (Android, encore non corrigé en 57.x, cf. expo/expo#48999) peut
+ * « empoisonner » une connexion : après un teardown de runtime (reload dev,
+ * reconstitution d'Activity) de vieux handles natifs sont double-fermés et
+ * chaque requête suivante rejette un NullPointerException nu. Un simple reopen
+ * renvoie l'objet empoisonné en cache ; seul un reconnect (useNewConnection)
+ * redonne une connexion vive.
+ */
+export function isBrokenConnectionError(error: unknown): boolean {
+  if (!(error instanceof Error)) return false;
+  return (
+    error.message.includes("NativeDatabase.prepareAsync") ||
+    error.message.includes("NativeDatabase.execAsync") ||
+    error.message.includes("NullPointerException")
+  );
+}
 
+async function openDatabase(useNewConnection: boolean): Promise<SQLiteDatabase> {
   const SQLite = await loadSqlite();
-  const db = await SQLite.openDatabaseAsync(DATABASE_NAME);
+  const db = await SQLite.openDatabaseAsync(
+    DATABASE_NAME,
+    useNewConnection ? { useNewConnection: true } : {},
+  );
   await migrateDatabase(db);
-  database = db;
   return db;
 }
 
+export function getDatabase(): Promise<SQLiteDatabase> {
+  if (database) return Promise.resolve(database);
+  if (!opening) {
+    opening = openDatabase(false)
+      .then((db) => {
+        database = db;
+        return db;
+      })
+      .finally(() => {
+        opening = null;
+      });
+  }
+  return opening;
+}
+
+export async function recoverDatabase(): Promise<SQLiteDatabase> {
+  const poisoned = database;
+  database = null;
+  opening = null;
+  if (poisoned) {
+    try {
+      await poisoned.closeAsync();
+    } catch {
+      // Handle déjà corrompu : se contenter de le lâcher, le reconnect suffit.
+    }
+  }
+  const fresh = await openDatabase(true);
+  database = fresh;
+  return fresh;
+}
+
+export type DatabaseRetryDeps = {
+  get(): Promise<SQLiteDatabase>;
+  recover(): Promise<SQLiteDatabase>;
+};
+
+const defaultRetryDeps: DatabaseRetryDeps = {
+  get: getDatabase,
+  recover: recoverDatabase,
+};
+
+export async function withDatabaseRetry<T>(
+  run: (db: SQLiteDatabase) => Promise<T>,
+  deps: DatabaseRetryDeps = defaultRetryDeps,
+): Promise<T> {
+  try {
+    const db = await deps.get();
+    return await run(db);
+  } catch (error) {
+    if (!isBrokenConnectionError(error)) throw error;
+    const fresh = await deps.recover();
+    return await run(fresh);
+  }
+}
+
 export async function closeDatabase(): Promise<void> {
   if (!database) return;
   await database.closeAsync();
   database = null;
+  opening = null;
 }
 
 export async function withTransaction<T>(
   work: (db: SQLiteDatabase) => Promise<T>,
 ): Promise<T> {
-  const db = await getDatabase();
-  let result!: T;
-  await db.withTransactionAsync(async () => {
-    result = await work(db);
+  return withDatabaseRetry(async (db) => {
+    let result!: T;
+    await db.withTransactionAsync(async () => {
+      result = await work(db);
+    });
+    return result;
   });
-  return result;
 }

mobile/services/db/session.ts

@@ -1,4 +1,4 @@
-import { getDatabase } from './client';
+import { getDatabase, withDatabaseRetry } from './client';
 import type { SQLiteBindValue } from 'expo-sqlite';
 
 export type DbSession = {
@@ -14,5 +14,16 @@ export function __setDbForTests(db: DbSession | null): void {
 }
 
 export async function getSession(): Promise<DbSession> {
-  return override ?? (await getDatabase());
-}
+  if (override) return override;
+  await getDatabase();
+  return liveSession;
+}
+
+const liveSession: DbSession = {
+  runAsync: (sql, ...params) =>
+    withDatabaseRetry((db) => db.runAsync(sql, ...params)),
+  getFirstAsync: (sql, ...params) =>
+    withDatabaseRetry((db) => db.getFirstAsync(sql, ...params)),
+  getAllAsync: (sql, ...params) =>
+    withDatabaseRetry((db) => db.getAllAsync(sql, ...params)),
+};

mobile/tests/dbClient.test.ts

@@ -0,0 +1,117 @@
+import { test } from 'node:test';
+import assert from 'node:assert/strict';
+import {
+  isBrokenConnectionError,
+  withDatabaseRetry,
+  type DatabaseRetryDeps,
+} from '../services/db/client';
+import type { SQLiteDatabase } from 'expo-sqlite';
+
+function brokenConnectionError(): Error {
+  return new Error(
+    "Call to function 'NativeDatabase.prepareAsync' has been rejected.\n→ Caused by: java.lang.NullPointerException: java.lang.NullPointerException",
+  );
+}
+
+test('isBrokenConnectionError recognizes the expo-sqlite Android NPE signature', () => {
+  assert.equal(isBrokenConnectionError(brokenConnectionError()), true);
+  assert.equal(
+    isBrokenConnectionError(
+      new Error(
+        "Call to function 'NativeDatabase.execAsync' has been rejected.\n→ Caused by: java.lang.NullPointerException: java.lang.NullPointerException",
+      ),
+    ),
+    true,
+  );
+});
+
+test('isBrokenConnectionError ignores regular and non-Error values', () => {
+  assert.equal(isBrokenConnectionError(new Error('disk I/O error')), false);
+  assert.equal(isBrokenConnectionError(null), false);
+  assert.equal(isBrokenConnectionError('NativeDatabase.prepareAsync'), false);
+});
+
+test('withDatabaseRetry reconnects once on a dead connection and retries', async () => {
+  let current: SQLiteDatabase = {
+    runAsync: async () => {
+      throw brokenConnectionError();
+    },
+  } as unknown as SQLiteDatabase;
+  let getCalls = 0;
+  let recoverCalls = 0;
+
+  const deps: DatabaseRetryDeps = {
+    get: async () => {
+      getCalls++;
+      return current;
+    },
+    recover: async () => {
+      recoverCalls++;
+      current = {
+        runAsync: async () => 42 as never,
+      } as unknown as SQLiteDatabase;
+      return current;
+    },
+  };
+
+  const result = await withDatabaseRetry(async (db) => db.runAsync('SELECT 1'), deps);
+  assert.equal(result, 42);
+  assert.equal(recoverCalls, 1);
+  assert.equal(getCalls, 1);
+});
+
+test('withDatabaseRetry recovers when the open itself rejects with the NPE signature', async () => {
+  let recoverCalls = 0;
+  const deps: DatabaseRetryDeps = {
+    get: async () => {
+      throw brokenConnectionError();
+    },
+    recover: async () => {
+      recoverCalls++;
+      return {
+        runAsync: async () => 42 as never,
+      } as unknown as SQLiteDatabase;
+    },
+  };
+
+  const result = await withDatabaseRetry(async (db) => db.runAsync('SELECT 1'), deps);
+  assert.equal(result, 42);
+  assert.equal(recoverCalls, 1);
+});
+
+test('withDatabaseRetry does not recover on a regular database error', async () => {
+  let recoverCalls = 0;
+  const deps: DatabaseRetryDeps = {
+    get: async () =>
+      ({
+        runAsync: async () => {
+          throw new Error('disk I/O error');
+        },
+      }) as unknown as SQLiteDatabase,
+    recover: async () => {
+      recoverCalls++;
+      return {} as SQLiteDatabase;
+    },
+  };
+
+  await assert.rejects(() => withDatabaseRetry(async (db) => db.runAsync('SELECT 1'), deps), {
+    message: 'disk I/O error',
+  });
+  assert.equal(recoverCalls, 0);
+});
+
+test('withDatabaseRetry converges on a broken retry (recovery does not loop forever)', async () => {
+  const deps: DatabaseRetryDeps = {
+    get: async () => ({} as SQLiteDatabase),
+    recover: async () => ({} as SQLiteDatabase),
+  };
+
+  await assert.rejects(
+    () =>
+      withDatabaseRetry(async () => {
+        throw brokenConnectionError();
+      }, deps),
+    (error: unknown) =>
+      error instanceof Error && isBrokenConnectionError(error),
+  );
+});