Thomas Kristiansen

src/main/java/com/booleanuk/api/bagels/Bagel.java → src/main/java/com/booleanuk/api/bagel/Bagel.java

@@ -1,4 +1,4 @@
-package com.booleanuk.api.bagels;
+package com.booleanuk.api.bagel;
 
 public class Bagel {
     private int id;

src/main/java/com/booleanuk/api/bagels/BagelController.java → src/main/java/com/booleanuk/api/bagel/BagelController.java

@@ -1,4 +1,4 @@
-package com.booleanuk.api.bagels;
+package com.booleanuk.api.bagel;
 
 import java.util.List;
 

src/main/java/com/booleanuk/api/bagels/BagelRepository.java → src/main/java/com/booleanuk/api/bagel/BagelRepository.java

@@ -1,4 +1,4 @@
-package com.booleanuk.api.bagels;
+package com.booleanuk.api.bagel;
 
 import java.util.ArrayList;
 import java.util.List;

src/main/java/com/booleanuk/api/product/Main.java

@@ -0,0 +1,11 @@
+package com.booleanuk.api.product;
+
+import org.springframework.boot.SpringApplication;
+import org.springframework.boot.autoconfigure.SpringBootApplication;
+
+@SpringBootApplication
+public class Main {
+    public static void main(String[] args) {
+        SpringApplication.run(Main.class, args);
+    }
+}

src/main/java/com/booleanuk/api/product/controller/ProductController.java

@@ -0,0 +1,80 @@
+package com.booleanuk.api.product.controller;
+
+import com.booleanuk.api.product.model.Product;
+import com.booleanuk.api.product.model.ProductRepository;
+import org.springframework.http.HttpStatus;
+import org.springframework.web.bind.annotation.*;
+import org.springframework.web.server.ResponseStatusException;
+
+import java.awt.color.ProfileDataException;
+import java.util.ArrayList;
+import java.util.List;
+import java.util.Optional;
+
+@RestController
+@RequestMapping("/products")
+public class ProductController {
+    private ProductRepository productRepository;
+
+    public ProductController() {
+        productRepository = new ProductRepository();
+    }
+
+    @GetMapping
+    @RequestMapping(method = RequestMethod.GET)
+    public List<Product> getAll(@RequestParam("category") Optional<String> category) {
+        if(category.isPresent()) {
+            if (productRepository.getAll() != null) {
+                List<Product> productsCategory = new ArrayList<>();
+                for (int i = 0; i < productRepository.getAll().size(); i++) {
+                    if (productRepository.getAll().get(i).getCategory().equals(category.get())) {
+                        productsCategory.add(productRepository.getAll().get(i));
+                    }
+                }
+                if(productsCategory.isEmpty()) {
+                    throw new ResponseStatusException(HttpStatus.NOT_FOUND,"No products of the provided category were found");
+                }
+                return productsCategory;
+            }
+            throw new ResponseStatusException(HttpStatus.NOT_FOUND,"No products of the provided category were found");
+        }
+        if (productRepository.getAll() != null) {
+            return productRepository.getAll();
+        }
+        throw new ResponseStatusException(HttpStatus.NOT_FOUND, "No products of the provided category were found");
+    }
+
+    @GetMapping("/{id}")
+    public Product getOne(@PathVariable int id) {
+        if(productRepository.getOne(id) != null) {
+            return productRepository.getOne(id);
+        }
+        throw new ResponseStatusException(HttpStatus.NOT_FOUND, "Product not found.");
+    }
+
+    @PostMapping
+    public Product create(@RequestBody Product product) {
+        if (productRepository.create(product) != null) {
+            return product;
+        }
+        throw new ResponseStatusException(HttpStatus.BAD_REQUEST, "Product with provided name already exists");
+    }
+
+    @PutMapping("/{id}")
+    public Product update(@PathVariable int id, @RequestBody Product product) {
+        if (productRepository.update(id,product) != null) {
+            return product;
+        } else {
+            throw new ResponseStatusException(HttpStatus.NOT_FOUND, "Product not found.");
+        }
+
+    }
+
+    @DeleteMapping("/{id}")
+    public Product delete(@PathVariable int id) {
+        if (productRepository.delete(id) != null) {
+            return productRepository.getOne(id);
+        }
+        throw new ResponseStatusException(HttpStatus.NOT_FOUND,"Product not found.");
+    }
+}

src/main/java/com/booleanuk/api/product/model/Product.java

@@ -0,0 +1,51 @@
+package com.booleanuk.api.product.model;
+
+public class Product {
+
+    private static int nextId = 0;
+
+    private int id;
+    private String name;
+    private String category;
+    private int price;
+
+    public Product(String name, String category, int price) {
+        nextId++;
+        this.id = nextId;
+        this.name = name;
+        this.category = category;
+        this.price = price;
+    }
+
+    public int getId() {
+        return id;
+    }
+
+    public void setId(int id) {
+        this.id = id;
+    }
+
+    public String getName() {
+        return name;
+    }
+
+    public void setName(String name) {
+        this.name = name;
+    }
+
+    public String getCategory() {
+        return category;
+    }
+
+    public void setCategory(String category) {
+        this.category = category;
+    }
+
+    public int getPrice() {
+        return price;
+    }
+
+    public void setPrice(int price) {
+        this.price = price;
+    }
+}

src/main/java/com/booleanuk/api/product/model/ProductRepository.java

@@ -0,0 +1,68 @@
+package com.booleanuk.api.product.model;
+
+import org.springframework.http.HttpStatus;
+import org.springframework.web.server.ResponseStatusException;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class ProductRepository {
+
+    private List<Product> products;
+
+    public ProductRepository() {
+        this.products = new ArrayList<>();
+    }
+
+    public List<Product> getAll() {
+        if (products.isEmpty()) {
+            return null;
+        }
+        return this.products;
+    }
+
+    public List<Product> getProducts() {
+        return products;
+    }
+
+    public Product getOne(int id) {
+        for (Product product : products) {
+            if (product.getId() == id) {
+                return product;
+            }
+        }
+        return null;
+    }
+
+    public Product create(Product product) {
+        for (Product value : products) {
+            if (value.getName().equals(product.getName())) {
+                return null;
+            }
+        }
+        products.add(product);
+        return product;
+    }
+
+    public Product update(int id, Product product) {
+        Product updatedProduct = this.getOne(id);
+        if (updatedProduct != null) {
+            if (updatedProduct.getName().equals(product.getName())) {
+                throw new ResponseStatusException(HttpStatus.BAD_REQUEST, "Product with provided name already exists.");
+            }
+            updatedProduct.setName(product.getName());
+            updatedProduct.setCategory(product.getCategory());
+            updatedProduct.setPrice(product.getPrice());
+        }
+        return updatedProduct;
+    }
+
+    public Product delete(int id) {
+        Product deletedProduct = this.getOne(id);
+        if (deletedProduct != null) {
+            products.remove(deletedProduct);
+            return deletedProduct;
+        }
+        return null;
+    }
+}