Merge branch 'main' into funding_basket

1 files changed, 72 insertions, 0 deletions

diff --git a/ufund-api/src/main/java/com/ufund/api/ufundapi/service/UserService.java b/ufund-api/src/main/java/com/ufund/api/ufundapi/service/UserService.java
new file mode 100644
index 0000000..935ee72
--- /dev/null
+++ b/ufund-api/src/main/java/com/ufund/api/ufundapi/service/UserService.java
@@ -0,0 +1,72 @@
+package com.ufund.api.ufundapi.service;
+
+import java.io.IOException;
+
+import com.ufund.api.ufundapi.DuplicateKeyException;
+import com.ufund.api.ufundapi.model.User;
+import com.ufund.api.ufundapi.persistence.UserDAO;
+import org.springframework.stereotype.Component;
+
+@Component
+public class UserService {
+
+    private final UserDAO userDAO;
+
+    public UserService(UserDAO userDao) {
+        this.userDAO = userDao;
+    }
+
+    /**
+     * Creates a new user
+     *
+     * @param username The username of the user
+     * @param password The password of the user
+     * @return The created user object
+     * @throws IOException Thrown on any problem saving the file
+     */
+    public User createUser(String username, String password) throws IOException, DuplicateKeyException {
+        if (userDAO.getUser(username) != null) {
+            throw new DuplicateKeyException("A user with this name already exists");
+        }
+        User user = User.create(username, password);
+        return userDAO.addUser(user);
+    }
+
+    /**
+     * Gets a user with the given username
+     *
+     * @param username The username of the user
+     * @return The user object with that username
+     * @throws IOException If there was any problem saving the file
+     */
+    public User getUser(String username) throws IOException {
+        return userDAO.getUser(username);
+    }
+
+    /**
+     * Updates a user
+     *
+     * @param user The ID of the user to update
+     * @param username The user object to set (note: the ID is ignored)
+     * @return The updated user object
+     * @throws IOException Thrown if there was any issue saving the data
+     */
+    public User updateUser(User user, String username) throws IOException {
+        if (!user.getUsername().equals(username)) {
+            throw new IllegalArgumentException("ID in URL and body must match");
+        }
+        return userDAO.updateUser(user);
+    }
+
+    /**
+     * Deletes a user
+     *
+     * @param username The username of the user to delete
+     * @return True if the user was deleted
+     * @throws IOException Thrown if there was any issue saving the data
+     */
+    public boolean deleteUser(String username) throws IOException {
+        return userDAO.deleteUser(username);
+    }
+    
+}