Working on creating tasks

backend/api_test.go

@@ -205,3 +205,84 @@ func TestDeleteUserGoalInvalidId(t *testing.T) {
 		Status(400).
 		JSON().Object().Value("error").IsEqual("Invalid goal ID")
 }
+
+func TestCreateTask(t *testing.T) {
+	e := startServer(t)
+
+	// Create a new task without assigned user
+	requestBody := map[string]interface{}{
+		"name":   "Test Task",
+		"reward": 100,
+	}
+
+	response := e.POST("/tasks").
+		WithJSON(requestBody).
+		Expect().
+		Status(201). // Expect Created status
+		JSON().Object()
+
+	// Verify the response has an ID
+	response.ContainsKey("id")
+	taskId := response.Value("id").Number().Raw()
+
+	// Create a new task with assigned user
+	assignedUserId := 1
+	requestBodyWithUser := map[string]interface{}{
+		"name":     "Test Task Assigned",
+		"reward":   200,
+		"assigned": assignedUserId,
+	}
+
+	responseWithUser := e.POST("/tasks").
+		WithJSON(requestBodyWithUser).
+		Expect().
+		Status(201).
+		JSON().Object()
+
+	responseWithUser.ContainsKey("id")
+	responseWithUser.Value("id").Number().NotEqual(taskId) // Ensure different ID
+}
+
+func TestCreateTaskNoName(t *testing.T) {
+	e := startServer(t)
+
+	requestBody := map[string]interface{}{
+		"reward": 100,
+	}
+
+	e.POST("/tasks").
+		WithJSON(requestBody).
+		Expect().
+		Status(400). // Expect Bad Request
+		JSON().Object().Value("error").IsEqual("Task name cannot be empty")
+}
+
+func TestCreateTaskInvalidAssignedUser(t *testing.T) {
+	e := startServer(t)
+
+	requestBody := map[string]interface{}{
+		"name":     "Test Task Invalid User",
+		"reward":   100,
+		"assigned": 999, // Non-existent user ID
+	}
+
+	e.POST("/tasks").
+		WithJSON(requestBody).
+		Expect().
+		Status(404). // Expect Not Found
+		JSON().Object().Value("error").IsEqual(ErrUserNotFound)
+}
+
+func TestCreateTaskInvalidRequestBody(t *testing.T) {
+	e := startServer(t)
+
+	// Test with missing fields (name is required)
+	invalidRequest := map[string]interface{}{
+		"reward": 5000,
+	}
+
+	e.POST("/tasks").
+		WithJSON(invalidRequest).
+		Expect().
+		Status(400)
+}

backend/db.go

@@ -150,3 +150,35 @@ func (db *Db) DeleteGoal(userId int, goalId int) error {
 
 	return nil
 }
+
+func (db *Db) CreateTask(task *CreateTaskRequest) (int, error) {
+	tx, err := db.db.Begin()
+	if err != nil {
+		return 0, err
+	}
+	defer tx.Rollback()
+
+	// Insert the new task
+	err = tx.Query("insert into tasks (name, reward, assigned) values (?, ?, ?)").
+		Bind(task.Name, task.Reward, task.Assigned).
+		Exec()
+
+	if err != nil {
+		return 0, err
+	}
+
+	// Get the last inserted ID
+	var lastId int
+	err = tx.Query("select last_insert_rowid()").ScanSingle(&lastId)
+	if err != nil {
+		return 0, err
+	}
+
+	// Commit the transaction
+	err = tx.Commit()
+	if err != nil {
+		return 0, err
+	}
+
+	return lastId, nil
+}

backend/dto.go

@@ -10,11 +10,12 @@ type Allowance struct {
 	Goals     []Goal `json:"goals"`
 }
 
-type Schema struct {
+// Task represents a task in the system.
-	Id       int    `json:"id"`
+type Task struct {
+	ID       int    `json:"id"`
 	Name     string `json:"name"`
 	Reward   int    `json:"reward"`
-	Assigned *int   `json:"assigned"`
+	Assigned *int   `json:"assigned"` // Pointer to allow null
 }
 
 type Goal struct {
@@ -34,3 +35,15 @@ type CreateGoalRequest struct {
 type CreateGoalResponse struct {
 	ID int `json:"id"`
 }
+
+// CreateTaskRequest represents the request body for creating a new task.
+type CreateTaskRequest struct {
+	Name     string `json:"name" binding:"required"`
+	Reward   int    `json:"reward"`
+	Assigned *int   `json:"assigned"`
+}
+
+// CreateTaskResponse represents the response body after creating a new task.
+type CreateTaskResponse struct {
+	ID int `json:"id"`
+}

backend/main.go

@@ -183,6 +183,44 @@ func deleteUserGoal(c *gin.Context) {
 	c.JSON(http.StatusOK, gin.H{"message": "Goal deleted successfully"})
 }
 
+func createTask(c *gin.Context) {
+	var taskRequest CreateTaskRequest
+	if err := c.ShouldBindJSON(&taskRequest); err != nil {
+		log.Printf("Error parsing request body: %v", err)
+		c.JSON(http.StatusBadRequest, gin.H{"error": "Invalid request body"})
+		return
+	}
+
+	if taskRequest.Name == "" {
+		c.JSON(http.StatusBadRequest, gin.H{"error": "Task name cannot be empty"})
+		return
+	}
+
+	// If assigned is not nil, check if user exists
+	if taskRequest.Assigned != nil {
+		exists, err := db.UserExists(*taskRequest.Assigned)
+		if err != nil {
+			log.Printf("Error checking user existence: %v", err)
+			c.JSON(http.StatusInternalServerError, gin.H{"error": ErrInternalServerError})
+			return
+		}
+		if !exists {
+			c.JSON(http.StatusNotFound, gin.H{"error": ErrUserNotFound})
+			return
+		}
+	}
+
+	taskId, err := db.CreateTask(&taskRequest)
+	if err != nil {
+		log.Printf("Error creating task: %v", err)
+		c.JSON(http.StatusInternalServerError, gin.H{"error": "Could not create task"})
+		return
+	}
+
+	response := CreateTaskResponse{ID: taskId}
+	c.IndentedJSON(http.StatusCreated, response)
+}
+
 /*
 *
 Initialises the database, and then starts the server.
@@ -198,6 +236,7 @@ func start(ctx context.Context, config *ServerConfig) {
 	router.GET("/api/user/:userId/goals", getUserGoals)
 	router.POST("/api/user/:userId/goals", createUserGoal)
 	router.DELETE("/api/user/:userId/goal/:goalId", deleteUserGoal)
+	router.POST("/api/tasks", createTask)
 
 	srv := &http.Server{
 		Addr:    ":" + config.Port,