Implement autocomplete for categories

http/budgeting.go

@@ -60,6 +60,28 @@ func getDate(c *gin.Context) (time.Time, error) {
 	return getFirstOfMonth(year, month, time.Now().Location()), nil
 }
 
+func (h *Handler) autocompleteCategories(c *gin.Context) {
+	budgetID := c.Param("budgetid")
+	budgetUUID, err := uuid.Parse(budgetID)
+	if err != nil {
+		c.AbortWithError(http.StatusBadRequest, fmt.Errorf("budgetid missing from URL"))
+		return
+	}
+
+	query := c.Request.URL.Query().Get("s")
+	searchParams := postgres.SearchCategoriesParams{
+		BudgetID: budgetUUID,
+		Search:   "%" + query + "%",
+	}
+	categories, err := h.Service.SearchCategories(c.Request.Context(), searchParams)
+	if err != nil {
+		c.AbortWithError(http.StatusInternalServerError, err)
+		return
+	}
+
+	c.JSON(http.StatusOK, categories)
+}
+
 func (h *Handler) autocompletePayee(c *gin.Context) {
 	budgetID := c.Param("budgetid")
 	budgetUUID, err := uuid.Parse(budgetID)

http/http.go

@@ -67,6 +67,7 @@ func (h *Handler) Serve() {
 	authenticated.GET("/admin/clear-database", h.clearDatabase)
 	authenticated.GET("/budget/:budgetid", h.budgeting)
 	authenticated.GET("/budget/:budgetid/autocomplete/payees", h.autocompletePayee)
+	authenticated.GET("/budget/:budgetid/autocomplete/categories", h.autocompleteCategories)
 	authenticated.DELETE("/budget/:budgetid", h.deleteBudget)
 	authenticated.POST("/budget/:budgetid/import/ynab", h.importYNAB)
 	authenticated.POST("/budget/:budgetid/settings/clear", h.clearBudget)