feat: add 'can_be_assigned' field to users with updates to user creation, retrieval, and assignment queries

src/app/admin/users/page.js

@@ -97,6 +97,30 @@ export default function UserManagementPage() {
 		}
 	};
 
+	const handleToggleAssignable = async (userId, canBeAssigned) => {
+		try {
+			const response = await fetch(`/api/admin/users/${userId}`, {
+				method: "PUT",
+				headers: {
+					"Content-Type": "application/json",
+				},
+				body: JSON.stringify({ can_be_assigned: !canBeAssigned }),
+			});
+
+			if (!response.ok) {
+				throw new Error("Failed to update user");
+			}
+
+			setUsers(users.map(user => 
+				user.id === userId 
+					? { ...user, can_be_assigned: !canBeAssigned }
+					: user
+			));
+		} catch (err) {
+			setError(err.message);
+		}
+	};
+
 	const getRoleColor = (role) => {
 		switch (role) {
 			case "admin":
@@ -207,6 +231,9 @@ export default function UserManagementPage() {
 												<Badge color={user.is_active ? "green" : "red"}>
 													{user.is_active ? "Active" : "Inactive"}
 												</Badge>
+												<Badge color={user.can_be_assigned ? "blue" : "gray"}>
+													{user.can_be_assigned ? "Assignable" : "Not Assignable"}
+												</Badge>
 											</div>
 										</div>
 									</CardHeader>
@@ -237,6 +264,20 @@ export default function UserManagementPage() {
 										)}
 
 										<div className="flex items-center justify-between">
+											<div className="flex items-center space-x-4">
+												<div className="flex items-center space-x-2">
+													<input
+														type="checkbox"
+														id={`assignable-${user.id}`}
+														checked={user.can_be_assigned || false}
+														onChange={() => handleToggleAssignable(user.id, user.can_be_assigned)}
+														className="h-4 w-4 text-blue-600 focus:ring-blue-500 border-gray-300 rounded"
+													/>
+													<label htmlFor={`assignable-${user.id}`} className="text-sm text-gray-700">
+														Can be assigned to projects/tasks
+													</label>
+												</div>
+											</div>
 											<div className="flex space-x-2">
 												<Button
 													variant="outline"
@@ -290,7 +331,8 @@ function CreateUserModal({ onClose, onUserCreated }) {
 		username: "",
 		password: "",
 		role: "user",
-		is_active: true
+		is_active: true,
+		can_be_assigned: true
 	});
 	const [loading, setLoading] = useState(false);
 	const [error, setError] = useState("");
@@ -408,6 +450,19 @@ function CreateUserModal({ onClose, onUserCreated }) {
 						</label>
 					</div>
 
+					<div className="flex items-center">
+						<input
+							type="checkbox"
+							id="can_be_assigned"
+							checked={formData.can_be_assigned}
+							onChange={(e) => setFormData({ ...formData, can_be_assigned: e.target.checked })}
+							className="h-4 w-4 text-blue-600 focus:ring-blue-500 border-gray-300 rounded"
+						/>
+						<label htmlFor="can_be_assigned" className="ml-2 block text-sm text-gray-900">
+							Can be assigned to projects/tasks
+						</label>
+					</div>
+
 					<div className="flex space-x-3 pt-4">
 						<Button type="submit" disabled={loading} className="flex-1">
 							{loading ? "Creating..." : "Create User"}

src/lib/queries/projects.js

@@ -148,7 +148,7 @@ export function getAllUsersForAssignment() {
 			`
 		SELECT id, name, username, role 
 		FROM users 
-		WHERE is_active = 1 AND role != 'admin'
+		WHERE is_active = 1 AND can_be_assigned = 1
 		ORDER BY name
 	`
 		)

src/lib/queries/tasks.js

@@ -296,7 +296,7 @@ export function getAllUsersForTaskAssignment() {
 			`
 		SELECT id, name, username, role 
 		FROM users 
-		WHERE is_active = 1 AND role != 'admin'
+		WHERE is_active = 1 AND can_be_assigned = 1
 		ORDER BY name ASC
 	`
 		)

src/lib/userManagement.js

@@ -3,7 +3,7 @@ import bcrypt from "bcryptjs"
 import { randomBytes } from "crypto"
 
 // Create a new user
-export async function createUser({ name, username, password, role = 'user', is_active = true }) {
+export async function createUser({ name, username, password, role = 'user', is_active = true, can_be_assigned = true }) {
   const existingUser = db.prepare("SELECT id FROM users WHERE username = ?").get(username)
   if (existingUser) {
     throw new Error("User with this username already exists")
@@ -13,13 +13,13 @@ export async function createUser({ name, username, password, role = 'user', is_a
   const userId = randomBytes(16).toString('hex')
 
   const result = db.prepare(`
-    INSERT INTO users (id, name, username, password_hash, role, is_active)
+    INSERT INTO users (id, name, username, password_hash, role, is_active, can_be_assigned)
-    VALUES (?, ?, ?, ?, ?, ?)
+    VALUES (?, ?, ?, ?, ?, ?, ?)
-  `).run(userId, name, username, passwordHash, role, is_active ? 1 : 0)
+  `).run(userId, name, username, passwordHash, role, is_active ? 1 : 0, can_be_assigned ? 1 : 0)
 
   return db.prepare(`
     SELECT id, name, username, role, created_at, updated_at, last_login, 
-           is_active, failed_login_attempts, locked_until, initial
+           is_active, failed_login_attempts, locked_until, initial, can_be_assigned
     FROM users WHERE id = ?
   `).get(userId)
 }
@@ -28,7 +28,7 @@ export async function createUser({ name, username, password, role = 'user', is_a
 export function getUserById(id) {
   return db.prepare(`
     SELECT id, name, username, password_hash, role, created_at, updated_at, last_login, 
-           is_active, failed_login_attempts, locked_until, initial
+           is_active, failed_login_attempts, locked_until, initial, can_be_assigned
     FROM users WHERE id = ?
   `).get(id)
 }
@@ -45,7 +45,7 @@ export function getUserByUsername(username) {
 export function getAllUsers() {
   return db.prepare(`
     SELECT id, name, username, password_hash, role, created_at, updated_at, last_login, is_active,
-           failed_login_attempts, locked_until, initial
+           failed_login_attempts, locked_until, initial, can_be_assigned
     FROM users 
     ORDER BY created_at DESC
   `).all()
@@ -172,6 +172,11 @@ export async function updateUser(userId, updates) {
     updateValues.push(updates.is_active ? 1 : 0);
   }
 
+  if (updates.can_be_assigned !== undefined) {
+    updateFields.push("can_be_assigned = ?");
+    updateValues.push(updates.can_be_assigned ? 1 : 0);
+  }
+
   if (updates.initial !== undefined) {
     updateFields.push("initial = ?");
     updateValues.push(updates.initial);
@@ -204,7 +209,7 @@ export async function updateUser(userId, updates) {
   if (result.changes > 0) {
     return db.prepare(`
       SELECT id, name, username, role, created_at, updated_at, last_login, 
-             is_active, failed_login_attempts, locked_until, initial
+             is_active, failed_login_attempts, locked_until, initial, can_be_assigned
       FROM users WHERE id = ?
     `).get(userId);
   }