feat: divide old ingredients controller into new ingredient controller and ingredient gateway

API-Project/src/controllers/ingredients.controller.ts

@@ -4,50 +4,48 @@ import { Exceptions } from "../utils/exception";
 import { IIngredient, Ingredient } from "../types/ingredients";
 import { pool } from "../database/connection";
 import { Query, QueryResult } from "pg";
+import { IngredientsGateway } from "../gateways/ingredients.gateway";
 
 
 const IngredientsController = Router()
 
+const ingredient_gw = new IngredientsGateway()
+
 /** To get all ingredients */
-IngredientsController.get('/', (req, res) => {
-    let ingredients:Ingredient[] = []
-    pool.query({text:'SELECT * FROM Ingredients ORDER BY id'}, (error: Error, results: QueryResult) => {
-        if (error) {
-            throw(error);
-        }
-        for (let key in results.rows) {
-            let ingredient:Ingredient = new Ingredient(Number(results.rows[key].id), results.rows[key].name);
-            ingredients.push(ingredient);
-        }
-        res.status(200);
-        res.json(ingredients);
-    })
-    return res;
+IngredientsController.get('/', async (req, res) => {
+    try {
+        const ingredients = await ingredient_gw.getAll()
+
+        res.status(200).json(ingredients)
+    } catch (error) {
+        const error_error = error as Error
+        res.status(500).send(error_error.message)
+    }
 })
 
 /** To get one ingredient by id */
-IngredientsController.get('/:id', (req, res) => {
+IngredientsController.get('/:id', async (req, res) => {
     const id = Number(req.params.id);
 
     if (!Number.isInteger(id)) {
         throw new Exceptions.BadRequestException('id invalid !');
     }
 
-    pool.query({text:'SELECT * FROM Ingredients WHERE id =$1',
-                values: [id]}, (error: Error, results: QueryResult) => {
-        if (error) {
-            throw(error)
-        }
-        
-        if (results.rowCount == 0) {
-            throw new Exceptions.NotFoundException('no ingredient with this id');
-        }
+    try {
+        const ingredient = await ingredient_gw.findOneById(id)
 
-        res.status(200)
-        res.json(results.rows)
-    })
+        if (ingredient == null) {
+            res.status(404).send('not found')
+        }
+        else {
+            const ingredient_ingredient = ingredient as Ingredient
 
-    return res;
+            res.status(200).json(ingredient)
+        }
+    } catch (error) {
+        const error_error = error as Error
+        res.status(500).send(error_error.message)
+    }
 })
 
 export { IngredientsController }

API-Project/src/controllers/recipes.controller.ts

@@ -1,11 +1,32 @@
 import { Request, Response, NextFunction } from "express";
 import { Router } from "express";
+import { pool } from "../database/connection";
+import { Query, QueryResult } from "pg";
+import { IRecipe, Recipe } from "../types/recipes";
+import { IngredientsController } from "./ingredients.controller";
+import { IIngredient } from "../types/ingredients";
 
 
 const RecipesController = Router()
 
-RecipesController.get('/', (req, res) => {
-    res.send("Liste des recettes");
+RecipesController.get('/', async (req, res) => {
+    let recipes:IRecipe[] = []
+    await pool.query('SELECT * FROM Recipe ORDER BY id', async (error: Error, result: QueryResult) => {
+        if (error) {
+            throw error;
+        }
+
+        for (let key in result.rows) {
+            const current = result.rows[key]
+            let recipe = new Recipe(current.id, current.name, current.description, current.time_to_cook);
+            const ingr_ids = current.ingredients
+            for (let ingr_id in ingr_ids) {
+                
+            }
+        }
+
+        res.json(result.rows)
+    })
     return res;
 })
 

API-Project/src/database/connection.ts

@@ -1,8 +1,34 @@
+import { Client } from "pg"
+
 const Pool = require('pg').Pool
+
 export const pool = new Pool({
   user: 'rgregnault',
   host: 'localhost',
   database: 'leftovers',
   password: 'motdepasse',
   port: 5432,
-})
+})
+
+
+export class Connection {
+  public client:Client
+  clientIsConnected:boolean = false
+
+  constructor() {
+    this.client = new Client({
+      user: 'rgregnault',
+      host: 'localhost',
+      database: 'leftovers',
+      password: 'motdepasse',
+      port: 5432,
+    })
+  }
+
+  public async connect() {
+    if (!this.clientIsConnected) {
+      await this.client.connect()
+      this.clientIsConnected = true
+    }
+  }
+}

API-Project/src/gateways/ingredients.gateway.ts

@@ -0,0 +1,45 @@
+import { QueryResult } from "pg";
+import { Ingredient } from "../types/ingredients";
+import { Connection } from "../database/connection"
+
+export class IngredientsGateway {
+    connection:Connection
+
+    constructor() {
+        this.connection = new Connection()
+    }
+
+    async getAll() : Promise<Ingredient[]> {
+        this.connection.connect()
+
+        const res = await this.connection.client.query('SELECT * FROM Ingredients ORDER BY id')
+
+        let ingredients:Ingredient[] = []
+
+        for (let key in res.rows) {
+            let ingredient:Ingredient = new Ingredient(Number(res.rows[key].id), res.rows[key].name);
+            ingredients.push(ingredient);
+        }
+
+        return ingredients
+    }
+
+    async findOneById(id: number) : Promise<any> {
+        this.connection.connect()
+
+        const query = {
+            text: 'SELECT * FROM Ingredients WHERE id =$1',
+            values: [id],
+        }
+        
+        const res = await this.connection.client.query(query)
+
+        if (res.rowCount != 1) {
+            return null
+        }
+
+        const ingredient = new Ingredient(Number(res.rows[0].id), String(res.rows[0].name))
+
+        return ingredient
+    }
+}

API-Project/src/types/recipes.ts

@@ -1,10 +1,36 @@
 import type { IIngredient } from "./ingredients"
 
 export interface IRecipe {
-    id: number,
-    name: string,
-    description: string,
-    time_to_cook: number,
+    readonly id: number,
+    readonly name: string,
+    readonly description: string,
+    readonly time_to_cook: number,
     ingredients: IIngredient[],
     steps: string[]
+}
+
+export class Recipe implements IRecipe {
+    id: number
+    name: string
+    description: string
+    time_to_cook: number
+    ingredients: IIngredient[]
+    steps: string[]
+
+    constructor(id: number, name: string, description: string, time_to_cook: number) {
+        this.id = id
+        this.name = name
+        this.description = description
+        this.time_to_cook = time_to_cook
+        this.ingredients = []
+        this.steps = []
+    }
+
+    addStep(newStep: string) {
+        this.steps.push(newStep)
+    }
+
+    addIngredient(newIngredient: IIngredient) {
+        this.ingredients.push(newIngredient)
+    }
 }