Initial commit

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

backend/internal/handler/training_set.go

@@ -0,0 +1,92 @@
+package handler
+
+import (
+	"database/sql"
+	"krafttrainer/internal/model"
+	"net/http"
+	"strings"
+)
+
+func (h *Handler) handleListSets(w http.ResponseWriter, r *http.Request) {
+	sets, err := h.store.ListSets()
+	if err != nil {
+		writeError(w, http.StatusInternalServerError, "Fehler beim Laden der Sets")
+		return
+	}
+	writeJSON(w, http.StatusOK, sets)
+}
+
+func (h *Handler) handleCreateSet(w http.ResponseWriter, r *http.Request) {
+	var req model.CreateSetRequest
+	if err := decodeJSON(r, &req); err != nil {
+		writeError(w, http.StatusBadRequest, "Ungültiger Request-Body")
+		return
+	}
+	if err := req.Validate(); err != nil {
+		writeError(w, http.StatusBadRequest, err.Error())
+		return
+	}
+
+	set, err := h.store.CreateSet(&req)
+	if err != nil {
+		if strings.Contains(err.Error(), "existiert nicht") {
+			writeError(w, http.StatusBadRequest, err.Error())
+			return
+		}
+		writeError(w, http.StatusInternalServerError, "Fehler beim Erstellen des Sets")
+		return
+	}
+	writeJSON(w, http.StatusCreated, set)
+}
+
+func (h *Handler) handleUpdateSet(w http.ResponseWriter, r *http.Request) {
+	id, err := pathID(r, "id")
+	if err != nil {
+		writeError(w, http.StatusBadRequest, "Ungültige ID")
+		return
+	}
+
+	var req model.UpdateSetRequest
+	if err := decodeJSON(r, &req); err != nil {
+		writeError(w, http.StatusBadRequest, "Ungültiger Request-Body")
+		return
+	}
+	if err := req.Validate(); err != nil {
+		writeError(w, http.StatusBadRequest, err.Error())
+		return
+	}
+
+	set, err := h.store.UpdateSet(id, &req)
+	if err != nil {
+		if strings.Contains(err.Error(), "existiert nicht") {
+			writeError(w, http.StatusBadRequest, err.Error())
+			return
+		}
+		writeError(w, http.StatusInternalServerError, "Fehler beim Aktualisieren des Sets")
+		return
+	}
+	if set == nil {
+		writeError(w, http.StatusNotFound, "Set nicht gefunden")
+		return
+	}
+	writeJSON(w, http.StatusOK, set)
+}
+
+func (h *Handler) handleDeleteSet(w http.ResponseWriter, r *http.Request) {
+	id, err := pathID(r, "id")
+	if err != nil {
+		writeError(w, http.StatusBadRequest, "Ungültige ID")
+		return
+	}
+
+	err = h.store.SoftDeleteSet(id)
+	if err == sql.ErrNoRows {
+		writeError(w, http.StatusNotFound, "Set nicht gefunden")
+		return
+	}
+	if err != nil {
+		writeError(w, http.StatusInternalServerError, "Fehler beim Löschen des Sets")
+		return
+	}
+	w.WriteHeader(http.StatusNoContent)
+}