feat: add universities and restaurants (#4)

Features:
- Allow to search for individual resources by their name
- Add new resources and their handler: Universities, Restaurants
- Added new parameter to reverse output order

Reviewed-on: #4
Co-authored-by: bdoerfchen <git@bissendorf.co>
Co-committed-by: bdoerfchen <git@bissendorf.co>

core/handler/meals/handler.go

@@ -5,6 +5,7 @@ import (
 	"fmt"
 	"time"
 
+	"git.bissendorf.co/bissendorf/unifood/m/v2/core/handler"
 	"git.bissendorf.co/bissendorf/unifood/m/v2/core/interfaces"
 	"git.bissendorf.co/bissendorf/unifood/m/v2/core/interfaces/params"
 	"git.bissendorf.co/bissendorf/unifood/m/v2/model/external/stwbremen"
@@ -19,20 +20,15 @@ type MealsHandler struct {
 	QueryClient interfaces.QueryClient[[]stwbremen.Meal]
 }
 
-const (
-	paramDate     = "date"
-	paramLocation = "location"
-)
-
-func (h *MealsHandler) Get(ctx context.Context, params params.Container) (*interfaces.ResourceList, error) {
+func (h *MealsHandler) Get(ctx context.Context, name string, params params.Container) (*interfaces.ResourceList, error) {
 	// Read parameters
-	p, err := params.GetValue(paramDate)
+	p, err := params.GetValue(handler.ParamDate)
 	if err != nil {
 		return nil, fmt.Errorf("unable to parse date parameter: %w", err)
 	}
 	date := p.(time.Time)
 
-	location, err := params.GetValue(paramLocation)
+	location, err := params.GetValue(handler.ParamLocation)
 	if err != nil {
 		return nil, fmt.Errorf("unable to parse location parameter: %w", err)
 	}
@@ -72,16 +68,16 @@ func (h *MealsHandler) Get(ctx context.Context, params params.Container) (*inter
 func (h *MealsHandler) GetParametersForVerb(verb interfaces.Verb) []params.Registration {
 	return []params.Registration{
 		{
-			Name:        paramDate,
+			Name:        handler.ParamDate,
 			ShortHand:   "d",
-			Description: "Menu date",
+			Description: "Meal date",
 			DefaultFunc: func() string { return time.Now().Format(time.DateOnly) },
 			ParseFunc:   func(value string) (any, error) { return time.Parse(time.DateOnly, value) },
 		},
 		{
-			Name:        paramLocation,
+			Name:        handler.ParamLocation,
 			ShortHand:   "l",
-			Description: "Define the restaurant",
+			Description: "Select a restaurant",
 			DefaultFunc: func() string { return "330" },
 			ParseFunc:   params.ParseString,
 		},