first commit for product use case

Author: frckbrice

application-business-rules/use-cases/products/index.js

@@ -0,0 +1,14 @@
+const {
+    createProductUseCase
+} = require("./product-handlers");
+
+const {
+    makeProductModelHandler
+} = require("../../../enterprise-business-rules/entities");
+
+
+const createProductUseCaseHandler = createProductUseCase({ makeProductModelHandler });
+
+module.exports = {
+    createProductUseCaseHandler,
+}

application-business-rules/use-cases/products/product-handlers.js

@@ -0,0 +1,36 @@
+
+/**
+ * Creates a new product in the database using the provided product data.
+ *
+ * @param {Object} options - An object containing the following properties:
+ *   - makeProductModelHandler: A function that validates the product data and returns normalized data.
+ *   - createProductHandler: An object containing the createProduct function to store the product in the database.
+ *   - productData: The data of the product to be created.
+ *   - errorHandlers: An object containing error handlers for validation errors.
+ * @return {Promise<Object>} A promise that resolves to the newly created product, frozen to prevent mutation.
+ * @throws {Error} If there is an error during the creation process, an error with the error message is thrown.
+ */
+const createProductUseCase = ({ makeProductModelHandler }) => async function
+    createProductUseCaseHandler({ createProductDbHandler, productData, errorHandlers }) {
+
+    try {
+        const validatedProductData = await makeProductModelHandler({ productData, errorHandlers });
+        // store product in database mongodb
+        const newProduct = await createProductDbHandler(validatedProductData);
+        return Object.freeze(newProduct)
+    } catch (error) {
+        console.log("Error from product handler: ", error);
+        logEvents(
+            `${error.no}:${error.code}\t${error.name}\t${error.message}`,
+            "product.log"
+        );
+        throw new Error(error.message);
+    }
+}
+
+
+
+module.exports = Object.freeze({
+    createProductUseCase,
+})
+

application-business-rules/use-cases/user/index.js

@@ -1,4 +1,4 @@
-const {registerUserUseCase, 
+const { registerUserUseCase,
     deleteUserUseCase,
     findAllUsersUseCase,
     findOneUserUseCase,
@@ -9,32 +9,32 @@ const {registerUserUseCase,
     blockUserUseCase,
     unBlockUserUseCase
 } = require("./user-handlers");
-const dbUserHandler = require("../../../framework-and-drivers/database-access/")
+const { dbUserHandler } = require("../../../interface-adapters/database-access")
 // const {loginUserUseCase} = require("./login-user");
 
-const registerUserUserCaseHandler = registerUserUseCase({dbUserHandler});
-const loginUserUseCaseHandler =  loginUserUseCase({dbUserHandler});
-const findOneUserUseCaseHandler = findOneUserUseCase({dbUserHandler});
-const findAllUsersUseCaseHandler = findAllUsersUseCase({dbUserHandler});
+const registerUserUserCaseHandler = registerUserUseCase({ dbUserHandler });
+const loginUserUseCaseHandler = loginUserUseCase({ dbUserHandler });
+const findOneUserUseCaseHandler = findOneUserUseCase({ dbUserHandler });
+const findAllUsersUseCaseHandler = findAllUsersUseCase({ dbUserHandler });
 const logoutUseCaseHandler = logoutUseCase();
-const refreshTokenUseCaseHandler = refreshTokenUseCase({dbUserHandler});
-const updateUserUseCaseHandler = updateUserUseCase({dbUserHandler});
-const deleteUserUseCaseHandler = deleteUserUseCase({dbUserHandler});
-const blockUserUseCaseHandler = blockUserUseCase({dbUserHandler});
-const unBlockUserUseCaseHandler = unBlockUserUseCase({dbUserHandler});
+const refreshTokenUseCaseHandler = refreshTokenUseCase({ dbUserHandler });
+const updateUserUseCaseHandler = updateUserUseCase({ dbUserHandler });
+const deleteUserUseCaseHandler = deleteUserUseCase({ dbUserHandler });
+const blockUserUseCaseHandler = blockUserUseCase({ dbUserHandler });
+const unBlockUserUseCaseHandler = unBlockUserUseCase({ dbUserHandler });
 
 
 
 module.exports = {
-    loginUserUseCaseHandler, 
-    logoutUseCaseHandler, 
-    refreshTokenUseCaseHandler, 
-    updateUserUseCaseHandler, 
-    deleteUserUseCaseHandler, 
-    findAllUsersUseCaseHandler, 
-    findOneUserUseCaseHandler, 
-    registerUserUserCaseHandler, 
+    loginUserUseCaseHandler,
+    logoutUseCaseHandler,
+    refreshTokenUseCaseHandler,
+    updateUserUseCaseHandler,
+    deleteUserUseCaseHandler,
+    findAllUsersUseCaseHandler,
+    findOneUserUseCaseHandler,
+    registerUserUserCaseHandler,
     loginUserUseCaseHandler,
     blockUserUseCaseHandler,
     unBlockUserUseCaseHandler
-}  
+}