feat: add missing endpoitn implementation

client/regulationmarks.go

@@ -0,0 +1,28 @@
+package client
+
+import (
+	"context"
+	"net/http"
+
+	"github.com/kratisto/tcgdex-golang/models"
+)
+
+// RegulationMarks retrieves all regulation marks.
+func (s *tcgDexClient) RegulationMarks(ctx context.Context) ([]string, error) {
+	request, err := http.NewRequestWithContext(ctx, http.MethodGet, s.baseURL+"/regulation-marks", nil)
+	if err != nil {
+		return nil, err
+	}
+
+	return doRequestSlice[string](s.httpClient, request)
+}
+
+// GetCardsByRegulationMark retrieves all cards for a given regulation mark.
+func (s *tcgDexClient) GetCardsByRegulationMark(ctx context.Context, regulationMark string) ([]models.Card, error) {
+	request, err := http.NewRequestWithContext(ctx, http.MethodGet, s.baseURL+"/regulation-marks/"+regulationMark, nil)
+	if err != nil {
+		return nil, err
+	}
+
+	return doRequestSlice[models.Card](s.httpClient, request)
+}