init

internal/handler/default_account_handler.go

@@ -0,0 +1,85 @@
+package handler
+
+import (
+	"errors"
+
+	"accounting-app/pkg/api"
+	"accounting-app/internal/service"
+
+	"github.com/gin-gonic/gin"
+)
+
+// DefaultAccountHandler handles HTTP requests for default account settings
+// Feature: financial-core-upgrade
+// Validates: Requirements 11.1-11.4
+type DefaultAccountHandler struct {
+	userSettingsService *service.UserSettingsService
+}
+
+// NewDefaultAccountHandler creates a new DefaultAccountHandler instance
+func NewDefaultAccountHandler(userSettingsService *service.UserSettingsService) *DefaultAccountHandler {
+	return &DefaultAccountHandler{
+		userSettingsService: userSettingsService,
+	}
+}
+
+// GetDefaultAccounts handles GET /api/settings/default-accounts
+// Returns the current default account settings
+// Validates: Requirements 11.1, 11.3
+func (h *DefaultAccountHandler) GetDefaultAccounts(c *gin.Context) {
+	userId, exists := c.Get("user_id")
+	if !exists {
+		api.Unauthorized(c, "User not authenticated")
+		return
+	}
+
+	response, err := h.userSettingsService.GetDefaultAccounts(userId.(uint))
+	if err != nil {
+		api.InternalError(c, "Failed to get default accounts: "+err.Error())
+		return
+	}
+
+	api.Success(c, response)
+}
+
+// UpdateDefaultAccounts handles PUT /api/settings/default-accounts
+// Updates the default account settings
+// Validates: Requirements 11.2, 11.4
+func (h *DefaultAccountHandler) UpdateDefaultAccounts(c *gin.Context) {
+	userId, exists := c.Get("user_id")
+	if !exists {
+		api.Unauthorized(c, "User not authenticated")
+		return
+	}
+
+	var input service.DefaultAccountsInput
+	if err := c.ShouldBindJSON(&input); err != nil {
+		api.ValidationError(c, "Invalid request body: "+err.Error())
+		return
+	}
+
+	response, err := h.userSettingsService.UpdateDefaultAccounts(userId.(uint), input)
+	if err != nil {
+		if errors.Is(err, service.ErrDefaultAccountNotFound) {
+			api.NotFound(c, "Specified account not found")
+			return
+		}
+		if errors.Is(err, service.ErrInvalidDefaultAccount) {
+			api.BadRequest(c, "Invalid default account")
+			return
+		}
+		api.InternalError(c, "Failed to update default accounts: "+err.Error())
+		return
+	}
+
+	api.Success(c, response)
+}
+
+// RegisterRoutes registers all default account routes to the given router group
+func (h *DefaultAccountHandler) RegisterRoutes(rg *gin.RouterGroup) {
+	settings := rg.Group("/settings")
+	{
+		settings.GET("/default-accounts", h.GetDefaultAccounts)
+		settings.PUT("/default-accounts", h.UpdateDefaultAccounts)
+	}
+}