C ordening

C/C2 AnimalShelter/shared/administration.c

@@ -0,0 +1,59 @@
+#include "administration.h"
+
+#include <stdbool.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "animal.h"
+
+int addAnimal(const Animal* animalPtr, Animal* animalArray, size_t animalArrayLength, size_t numberOfAnimalsPresent, size_t* newNumberOfAnimalsPresent){
+    int fault = 0;
+    if (animalArray == NULL || animalPtr == NULL || numberOfAnimalsPresent >= animalArrayLength) {
+        fault = -1; // Invalid
+    } else {
+        animalArray[numberOfAnimalsPresent] = *animalPtr;
+        ++numberOfAnimalsPresent;
+    }
+    *newNumberOfAnimalsPresent = numberOfAnimalsPresent;
+    return fault;
+}
+
+int removeAnimal(int animalId, Animal* animalArray, size_t numberOfAnimalsPresent, size_t* newNumberOfAnimalsPresent){
+    int fault = -1;
+    if (animalArray == NULL || numberOfAnimalsPresent == 0) {
+        fault = -1; // Invalid
+    } else {
+        for (size_t i = 0; i < numberOfAnimalsPresent; ++i) {
+            if (animalArray[i].Id == animalId) {
+                // move the array elements to the left to remove the animal
+                for (size_t j = i; j < numberOfAnimalsPresent - 1; ++j) {
+                    animalArray[j] = animalArray[j + 1];
+                }
+                --numberOfAnimalsPresent;
+                fault = 0;
+                break;
+            }
+        }
+    }
+    *newNumberOfAnimalsPresent = numberOfAnimalsPresent;
+    return fault;
+}
+
+int findAnimalById(int animalId, const Animal* animalArray, size_t numberOfAnimalsPresent, Animal* foundAnimal) {
+    int fault = -1;
+    if (animalArray == NULL || numberOfAnimalsPresent == 0 || foundAnimal == NULL) {
+        fault = -1;
+    } else {
+        for (size_t i = 0; i < numberOfAnimalsPresent; i++) {
+            if (animalArray[i].Id == animalId) {
+                *foundAnimal = animalArray[i];
+                fault = 0;
+                break;  // Exit loop after finding the animal
+            }
+        }
+        if (fault == -1) {  // Only zero out if animal wasn't found
+            memset(foundAnimal, 0, sizeof(Animal));
+        }
+    }
+    return fault;
+}