udpate: with repositories

src/server/api/lang.get.ts

@@ -1,10 +1,7 @@
 export default defineEventHandler(async (event) => {
   setHeader(event, 'Content-Type', 'application/json');
 
-  const system = await InMemory.getSystem();
-  if (system) {
-    const { lang } = system;
-    return lang;
-  }
-  return 'en';
+  const provider = InMemory; // TODO multiple provider
+  const lang = await SystemRepository.getLang(provider);
+  return lang;
 });

src/server/databases/entities/system.ts

@@ -72,3 +72,15 @@ type System = {
 };
 
 export default System;
+
+/**
+ * Abstract class for system-related database operations.
+ * This class provides a method for retrieving system configuration data from the database.
+ */
+export abstract class SystemProvider {
+  /**
+   * Retrieves system data from the database.
+   * @returns {Promise<System | Undefined>} The system data or null if not found.
+   */
+  abstract getSystem(): Promise<System | Undefined>;
+}

src/server/databases/entities/user.ts

@@ -1,3 +1,4 @@
+import type { Identity, Undefined } from '../database';
 import type { Address, Key, PassordHash } from './system';
 
 export type ROLE = 'ADMIN';
@@ -21,3 +22,31 @@ type User = {
 };
 
 export default User;
+
+/**
+ * Abstract class for user-related database operations.
+ * This class provides methods for retrieving and saving user data.
+ */
+export abstract class UserProvider {
+  /**
+   * Retrieves all users from the database.
+   * @returns {Promise<Array<User>>} The array of users data.
+   */
+  abstract getUsers(): Promise<Array<User>>;
+
+  /**
+   * Retrieves a user by their ID or by User structure from the database.
+   * @param {Identity<User>} id - The ID of the user or a user.
+   * @returns {Promise<User | Undefined>} The user data or null if not found.
+   */
+  abstract getUser(id: Identity<User>): Promise<User | Undefined>;
+
+  /**
+   * Creates or Updates a user in the database.
+   * @param {User} user - The user to be saved.
+   *
+   * **Note:** If the user already exists, this method will update their details.
+   * If the user does not exist, it will create a new user entry.
+   */
+  abstract saveUser(user: User): Promise<void>;
+}

src/server/databases/providers/inmemory.ts

@@ -1,11 +1,11 @@
 import type { SessionConfig } from 'h3';
 import type { Identity } from '../database';
-import type UserRepository from '../repositories/user';
-import type SystemRepository from '../repositories/system';
 import type System from '../entities/system';
 import type User from '../entities/user';
+import type { UserProvider } from '../entities/user';
+import type { SystemProvider } from '../entities/system';
+import type DatabaseProvider from '../database';
 
-import DatabaseProvider from '../database';
 import { ChartType } from '../entities/system';
 import debug from 'debug';
 
@@ -21,8 +21,7 @@ type InMemoryData = {
 
 // In-Memory Database Provider
 export default class InMemoryDP
-  extends DatabaseProvider
-  implements UserRepository, SystemRepository
+  implements DatabaseProvider, UserProvider, SystemProvider
 {
   private data: InMemoryData = { users: [] };
 
@@ -78,7 +77,7 @@ export default class InMemoryDP
   }
 
   async disconnect() {
-    // TODO
+    this.data = { users: [] };
   }
 
   async getSystem() {
@@ -91,6 +90,10 @@ export default class InMemoryDP
     this.data.system = system;
   }
 
+  async getUsers() {
+    return this.data.users;
+  }
+
   async getUser(id: Identity<User>) {
     INMDP_DEBUG('Get User');
     if (typeof id === 'string') {

src/server/databases/repositories/system.ts

@@ -1,14 +0,0 @@
-import type { Undefined } from '../database';
-import type System from '../entities/system';
-
-/**
- * Abstract class for system-related database operations.
- * This class provides a method for retrieving system configuration data from the database.
- */
-export default abstract class SystemRepository {
-  /**
-   * Retrieves system data from the database.
-   * @returns {Promise<System | Undefined>} The system data or null if not found.
-   */
-  abstract getSystem(): Promise<System | Undefined>;
-}

src/server/databases/repositories/user.ts

@@ -1,24 +0,0 @@
-import type User from '../entities/user';
-import type { Identity, Undefined } from '../database';
-
-/**
- * Abstract class for user-related database operations.
- * This class provides methods for retrieving and saving user data.
- */
-export default abstract class UserRepository {
-  /**
-   * Retrieves a user by their ID or by User structure from the database.
-   * @param {Identity<User>} id - The ID of the user or a user.
-   * @returns {Promise<User | Undefined>} The user data or null if not found.
-   */
-  abstract getUser(id: Identity<User>): Promise<User | Undefined>;
-
-  /**
-   * Creates or Updates a user in the database.
-   * @param {User} user - The user to be saved.
-   *
-   * **Note:** If the user already exists, this method will update their details.
-   * If the user does not exist, it will create a new user entry.
-   */
-  abstract saveUser(user: User): Promise<void>;
-}

src/server/utils/databases/InMemory.ts

@@ -1,17 +1,12 @@
 import InMemoryDP from '@/server/databases/providers/inmemory';
 
-const provider = new InMemoryDP(); // TODO manage multiple providers
+const provider = new InMemoryDP(); // TODO multiple providers
 
 provider.connect().catch((err) => {
   console.error(err);
-  provider
-    .disconnect()
-    .catch((err) => {
-      console.error(err);
-    })
-    .finally(() => {
-      process.exit(1);
-    });
+  provider.disconnect().catch((err) => {
+    console.error(err);
+  });
 });
 
 export default provider;

src/server/utils/repositories/SystemRepository.ts

@@ -0,0 +1,14 @@
+import type { Lang, SystemProvider } from '@/server/databases/entities/system';
+
+class SystemRepository {
+  async getLang(provider: SystemProvider): Promise<Lang> {
+    const _system = await provider.getSystem();
+    if (_system) {
+      const { lang } = _system;
+      return lang;
+    }
+    return 'en';
+  }
+}
+
+export default new SystemRepository();

src/server/utils/repositories/UserRepository.ts

@@ -0,0 +1,11 @@
+import type User from '@/server/databases/entities/user';
+import type { UserProvider } from '@/server/databases/entities/user';
+import type { Undefined } from '@/server/databases/database';
+
+class UserRepository {
+  newUser(db: UserProvider): Promise<User | Undefined> {
+    return db.getUser('');
+  }
+}
+
+export default new UserRepository();