From b1a8003f9b5e57767a2d0425608a4ee5ddf377d8 Mon Sep 17 00:00:00 2001
From: Mei Chang van der Werff <m.c.l.werff@student.tudelft.nl>
Date: Thu, 27 Nov 2025 03:27:03 +0100
Subject: [PATCH] Implementatation cloneRecipe method

---
 client/src/main/java/client/DetailView.java | 58 ++++++++++++++++++---
 1 file changed, 50 insertions(+), 8 deletions(-)

diff --git a/client/src/main/java/client/DetailView.java b/client/src/main/java/client/DetailView.java
index 5b3cbf0..5e23927 100644
--- a/client/src/main/java/client/DetailView.java
+++ b/client/src/main/java/client/DetailView.java
@@ -1,11 +1,11 @@
 package client;
 
-import com.fasterxml.jackson.core.JsonProcessingException;
 import com.fasterxml.jackson.core.type.TypeReference;
 import com.fasterxml.jackson.databind.ObjectMapper;
 import commons.Recipe;
 
 import java.io.IOException;
+import java.io.StringWriter;
 import java.net.URI;
 import java.net.http.HttpClient;
 import java.net.http.HttpRequest;
@@ -21,16 +21,14 @@ public class DetailView {
         client = HttpClient.newHttpClient();
     }
 
-
     /**
      * Gets all the recipes from the backend
      * @return a JSON string with all the recipes
-
      */
     public List<Recipe> findAll() throws IOException, InterruptedException {
         HttpRequest request = HttpRequest.newBuilder()
-                .uri(URI.create(BASE_URL+ "/recipes"))
                 .GET()
+                .uri(URI.create(BASE_URL+ "/recipes"))
                 .build();
         HttpResponse<String> response = client.send(request, HttpResponse.BodyHandlers.ofString());
 
@@ -39,7 +37,6 @@ public class DetailView {
         return recipes;
     }
 
-
     /**
      * Gets a single recipe based on its id
      * @param id every recipe has it's unique id
@@ -47,23 +44,68 @@ public class DetailView {
      */
     public Recipe findId(long id) throws IOException, InterruptedException {
         HttpRequest request = HttpRequest.newBuilder()
-                .uri(URI.create(BASE_URL+"/recipes/" + id))
                 .GET()
+                .uri(URI.create(BASE_URL+"/recipes/" + id))
                 .build();
         HttpResponse<String> response = client.send(request, HttpResponse.BodyHandlers.ofString());
 
+        if(response.statusCode() != 200){
+            System.out.println("No recipe found with this id");
+            return null;
+        }
         Recipe recipe = objectMapper.readValue(response.body(),Recipe.class);
+
         return recipe;
     }
 
+    /**
+     * Deletes a recipe
+     * @param id the recipe that get deleted
+     */
     public void deleteRecipe(long id) throws IOException, InterruptedException {
         HttpRequest request = HttpRequest.newBuilder()
-                .uri(URI.create(BASE_URL + "/recipes/" + id))
                 .DELETE()
+                .uri(URI.create(BASE_URL + "/recipes/" + id))
                 .build();
         HttpResponse<String> response = client.send(request, HttpResponse.BodyHandlers.ofString());
     }
 
+    /**
+     * Clones a recipe
+     * @param id the id of the recipe to be cloned
+     * @return a duplicated recipe of the given recipe
+     */
+    public Recipe cloneRecipe(long id) throws IOException, InterruptedException {
+        //Get the recipe
+        HttpRequest request = HttpRequest.newBuilder()
+                .GET()
+                .uri(URI.create(BASE_URL + "/recipes/" + id))
+                .build();
+        HttpResponse<String> response = client.send(request, HttpResponse.BodyHandlers.ofString());
 
+        Recipe OGRecipe = objectMapper.readValue(response.body(),Recipe.class);
 
-}
+        //200 is the status code for success, other codes can mean there is no recipe to clone
+        if(response.statusCode() != 200){
+            return null;
+        }
+
+        // recipe exists so you can make a "new" recipe aka the clone
+        Recipe clone = new Recipe();
+        String cloneName = OGRecipe.getName() + "(clone)";         // I suppose we want unique names?
+        clone.setName(cloneName);
+        clone.setIngredients(OGRecipe.getIngredients());
+        clone.setPreparationSteps(OGRecipe.getPreparationSteps());
+
+        //From String to Json
+        StringWriter s = new StringWriter();
+        objectMapper.writeValue(s, clone);
+
+        // Post the clone to backend
+        HttpRequest request1 = HttpRequest.newBuilder()
+                .POST(HttpRequest.BodyPublishers.ofString(s.toString()))
+                .uri(URI.create(BASE_URL + "/recipes/" + id))
+                .build();
+        return clone;
+    }
+}
\ No newline at end of file