From ca273270cd55e594c472566ba9a351b6dcaaa3c6 Mon Sep 17 00:00:00 2001
From: Fibinger Ádám <adam.fibinger@wup.hu>
Date: Wed, 20 Feb 2019 18:51:23 +0100
Subject: [PATCH] Fullly working mock version (Full CRUD can be tested)

---
 src/main/java/hu/unr/fiber/cardapi/CardController.java |   72 +++++++++++++++++++++++++++++------
 1 files changed, 59 insertions(+), 13 deletions(-)

diff --git a/src/main/java/hu/unr/fiber/cardapi/CardController.java b/src/main/java/hu/unr/fiber/cardapi/CardController.java
index a25836a..d3eb21f 100644
--- a/src/main/java/hu/unr/fiber/cardapi/CardController.java
+++ b/src/main/java/hu/unr/fiber/cardapi/CardController.java
@@ -1,5 +1,6 @@
 package hu.unr.fiber.cardapi;
 
+import java.net.URI;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.Optional;
@@ -7,7 +8,6 @@
 
 import org.slf4j.Logger;
 import org.slf4j.LoggerFactory;
-import org.springframework.http.HttpHeaders;
 import org.springframework.http.HttpStatus;
 import org.springframework.http.ResponseEntity;
 import org.springframework.web.bind.annotation.*;
@@ -28,23 +28,67 @@
 
     @GetMapping("/")
     public String index() {
-        logger.info("/index called.");
-        return "Hello world! Hateoas helyett: (/cards GET /card/{id} POST /card/{id} PUT /card/{id} DELETE /card/{id} )";
+        logger.info("GET /index called.");
+        return "Hateoas helyett: (/cards GET /card/{id} POST /card/{id} PUT /card/{id} DELETE /card/{id} )";
     }
 
     @GetMapping("/cards")
     public List<Card> cards() {
-        logger.info("/cards called, responded with " + cardList.size() + " items.");
+        logger.info("GET /cards called, responded with " + cardList.size() + " items.");
         return cardList;
     }
 
     @GetMapping(value = "/card/{id}")
-    public ResponseEntity<Card> getUser(@PathVariable("id") long id) {
-        logger.info("/card/" + id + " called");
+    public ResponseEntity<Card> getCard(@PathVariable("id") long id) {
+        logger.info("GET /card/" + id + " called.");
         return Optional
                 .ofNullable(this.getCardByID(id))
                 .map(card -> ResponseEntity.ok().body(card))          //200 OK
                 .orElseGet(() -> ResponseEntity.notFound().build());  //404 Not found
+    }
+
+    @DeleteMapping(value = "/card/{id}")
+    public ResponseEntity<String> deleteCard(@PathVariable("id") long id) {
+        logger.info("DELETE /card/" + id + " called");
+
+        return Optional
+                .ofNullable(this.getCardByID(id))
+                .map(
+                        card -> {
+                            this.cardList.remove(card);
+                            return ResponseEntity.ok().body("OK");
+                        }
+                )
+                .orElseGet(() -> ResponseEntity.status(HttpStatus.NOT_FOUND).body("No card available with id: "+ id));
+    }
+
+    @PostMapping(value = "/card/{id}")
+    public ResponseEntity<String> updateCard(@PathVariable("id") long id, @RequestBody Card updatedCard, UriComponentsBuilder ucBuilder) {
+
+        logger.info("POST /card/"+ id + " called, card update.");
+
+        if (updatedCard.validId() && (updatedCard.getId() != id))
+        {
+            return ResponseEntity
+                    .badRequest()
+                    .body("Id field cannot be modified.");
+        }
+
+        Card originalCard = this.getCardByID(id);
+
+        if (originalCard.equals(updatedCard)) {
+            return ResponseEntity.accepted().body("Update has no changes.");
+        }
+
+        //card number updated, we have to check if its already exists
+        if (!originalCard.getNumber().equals(updatedCard.getNumber()) && this.getCardByNumber(updatedCard.getNumber()) != null) {
+            logger.error("Unable to update card with id {}. A different Card with number {} already exist", originalCard.getId(), updatedCard.getNumber());
+            return ResponseEntity.status(HttpStatus.CONFLICT).body("Card with number " + updatedCard.getNumber() + " already exists.");
+        }
+
+        originalCard.update(updatedCard);
+
+        return ResponseEntity.accepted().body("OK");
     }
 
     private Card getCardByID(long id) {
@@ -70,26 +114,28 @@
 
     @PostMapping(value = "/card")
     public ResponseEntity<String> createCard(@RequestBody Card card, UriComponentsBuilder ucBuilder) {
-        logger.info("Creating Card : {}", card);
+        logger.info("Creating Card : {}", card.getNumber());
 
         if (this.getCardByNumber(card.getNumber()) != null) {
             logger.error("Unable to create. A Card with number {} already exist", card.getNumber());
-            return ResponseEntity.status(HttpStatus.CONFLICT).build();
+            return ResponseEntity.status(HttpStatus.CONFLICT).body("Card with number "+ card.getNumber() + " already exists.");
         }
 
-        long nextId = new Random().nextLong();
+        long nextId = 1;
 
         while (this.getCardByID(nextId) != null) {
-            nextId = new Random().nextLong();
+            nextId++;
         }
 
         card.setId(nextId);
 
         cardList.add(card);
 
-        HttpHeaders headers = new HttpHeaders();
-        headers.setLocation(ucBuilder.path("/card/{id}").buildAndExpand(card.getId()).toUri());
-        return new ResponseEntity<String>(headers, HttpStatus.CREATED);
+        URI newCardURI = ucBuilder.path("/card/{id}").buildAndExpand(card.getId()).toUri();
+
+        return ResponseEntity
+                .created(newCardURI)
+                .body(newCardURI.toString());
     }
 
 }
\ No newline at end of file

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