Implemented account management controller

client-api/src/main/java/ru/dragonestia/picker/api/exception/ExceptionFactory.java

@@ -26,6 +26,7 @@ public class ExceptionFactory {
         factory.put(RoomNotFoundException.ERROR_ID, RoomNotFoundException::new);
         factory.put(NotPersistedNodeException.ERROR_ID, NotPersistedNodeException::new);
         factory.put(AccountDoesNotExistsException.ERROR_ID, AccountDoesNotExistsException::new);
+        factory.put(PermissionNotFoundException.ERROR_ID, PermissionNotFoundException::new);
 
         return factory;
     }

client-api/src/main/java/ru/dragonestia/picker/api/exception/PermissionNotFoundException.java

@@ -0,0 +1,34 @@
+package ru.dragonestia.picker.api.exception;
+
+import ru.dragonestia.picker.api.repository.response.ErrorResponse;
+
+import java.util.Map;
+
+public final class PermissionNotFoundException extends ApiException {
+
+    public static final String ERROR_ID = "err.permission.not_found";
+
+    private final String permissionId;
+
+    public PermissionNotFoundException(String permissionId) {
+        this.permissionId = permissionId;
+    }
+
+    public PermissionNotFoundException(ErrorResponse errorResponse) {
+        this(errorResponse.details().get("permissionId"));
+    }
+
+    public String getPermissionId() {
+        return permissionId;
+    }
+
+    @Override
+    public String getErrorId() {
+        return ERROR_ID;
+    }
+
+    @Override
+    public void appendDetailsToErrorResponse(Map<String, String> details) {
+        details.put("permissionId", permissionId);
+    }
+}

client-api/src/main/java/ru/dragonestia/picker/api/repository/response/AllAccountsResponse.java

@@ -0,0 +1,7 @@
+package ru.dragonestia.picker.api.repository.response;
+
+import ru.dragonestia.picker.api.model.account.ResponseAccount;
+
+import java.util.List;
+
+public record AllAccountsResponse(List<ResponseAccount> accounts) {}

server/src/main/java/ru/dragonestia/picker/controller/AccountsController.java

@@ -6,11 +6,15 @@ import org.springframework.security.access.prepost.PreAuthorize;
 import org.springframework.security.core.context.SecurityContextHolder;
 import org.springframework.security.core.userdetails.UsernameNotFoundException;
 import org.springframework.web.bind.annotation.*;
+import ru.dragonestia.picker.api.exception.AccountDoesNotExistsException;
+import ru.dragonestia.picker.api.exception.PermissionNotFoundException;
 import ru.dragonestia.picker.api.model.account.ResponseAccount;
+import ru.dragonestia.picker.api.repository.response.AllAccountsResponse;
 import ru.dragonestia.picker.model.Account;
+import ru.dragonestia.picker.model.Permission;
 import ru.dragonestia.picker.service.AccountService;
 
-import java.util.List;
+import java.util.HashSet;
 
 @RestController
 @RequestMapping("/accounts")
@@ -36,22 +40,57 @@ public class AccountsController {
     }
 
     @GetMapping
-    List<ResponseAccount> allAccounts() {
-        throw new UnsupportedOperationException("Not implemented");
+    AllAccountsResponse allAccounts() {
+        return new AllAccountsResponse(accountService.allAccounts().stream()
+                .map(Account::toResponseObject)
+                .toList());
     }
 
     @PostMapping
     ResponseAccount registerAccount(@RequestParam String username, @RequestParam String password, @RequestParam String permissions) {
-        throw new UnsupportedOperationException("Not implemented");
+        var account = accountService.createNewAccount(username, password);
+
+        var authorities = new HashSet<Permission>();
+        for (var permStr : permissions.split(",")) {
+            try {
+                var perm = Permission.valueOf(permStr);
+                authorities.add(perm);
+            } catch (IllegalArgumentException ex) {
+                throw new PermissionNotFoundException(permStr);
+            }
+        }
+        account.setAuthorities(authorities);
+
+        accountService.updateState(account);
+
+        return account.toResponseObject();
     }
 
     @PutMapping("/{accountId}")
     ResponseEntity<?> updatePermissions(@PathVariable String accountId, @RequestParam String permissions) {
-        throw new UnsupportedOperationException("Not implemented");
+        var account = accountService.findAccount(accountId).orElseThrow(() -> new AccountDoesNotExistsException(accountId));
+
+        var authorities = new HashSet<Permission>();
+        for (var permStr : permissions.split(",")) {
+            try {
+                var perm = Permission.valueOf(permStr);
+                authorities.add(perm);
+            } catch (IllegalArgumentException ex) {
+                throw new PermissionNotFoundException(permStr);
+            }
+        }
+        account.setAuthorities(authorities);
+
+        accountService.updateState(account);
+
+        return ResponseEntity.ok().build();
     }
 
     @DeleteMapping("/{accountId}")
     ResponseEntity<?> removeAccount(@PathVariable String accountId) {
-        throw new UnsupportedOperationException("Not implemented");
+        var account = accountService.findAccount(accountId).orElseThrow(() -> new AccountDoesNotExistsException(accountId));
+        accountService.removeAccount(account);
+
+        return ResponseEntity.ok().build();
     }
 }

server/src/main/java/ru/dragonestia/picker/controller/ExceptionHandlerController.java

@@ -66,6 +66,11 @@ public class ExceptionHandlerController {
         return create(404, ex);
     }
 
+    @ExceptionHandler({PermissionNotFoundException.class})
+    ResponseEntity<?> permissionNotFound(PermissionNotFoundException ex) {
+        return create(400, ex);
+    }
+
     private ResponseEntity<ErrorResponse> create(int code, ApiException ex) {
         var details = new HashMap<String, String>();
         ex.appendDetailsToErrorResponse(details);

server/src/main/java/ru/dragonestia/picker/service/AccountService.java

@@ -7,12 +7,15 @@ import org.springframework.security.core.userdetails.UsernameNotFoundException;
 import ru.dragonestia.picker.model.Account;
 
 import java.util.Collection;
+import java.util.Optional;
 
 public interface AccountService extends UserDetailsService {
 
     @PreAuthorize("hasRole('ADMIN')")
     @NotNull Account createNewAccount(@NotNull String username, @NotNull String password);
 
+    @NotNull Optional<Account> findAccount(@NotNull String accountId);
+
     @PreAuthorize("hasRole('ADMIN')")
     @NotNull Collection<Account> allAccounts();
 

server/src/main/java/ru/dragonestia/picker/service/impl/AccountServiceImpl.java

@@ -13,6 +13,7 @@ import ru.dragonestia.picker.service.AccountService;
 import java.util.Arrays;
 import java.util.Collection;
 import java.util.Map;
+import java.util.Optional;
 import java.util.concurrent.ConcurrentHashMap;
 import java.util.stream.Collectors;
 
@@ -38,6 +39,11 @@ public class AccountServiceImpl implements AccountService {
         return account;
     }
 
+    @Override
+    public @NotNull Optional<Account> findAccount(@NotNull String accountId) {
+        return Optional.ofNullable(accounts.getOrDefault(accountId, null));
+    }
+
     @Override
     public @NotNull Collection<Account> allAccounts() {
         return accounts.values();