feat: added exercises handler/service/repo

internal/api/handler/exercise.go

@@ -0,0 +1,63 @@
+package handler
+
+import (
+	"log/slog"
+	"net/http"
+
+	"github.com/robindittmar/dttmr-api/internal/api/request"
+	"github.com/robindittmar/dttmr-api/internal/api/response"
+	"github.com/robindittmar/dttmr-api/internal/domain"
+)
+
+type ExerciseHandler struct {
+	ExerciseService *domain.ExerciseService
+}
+
+func NewExerciseHandler(exerciseService *domain.ExerciseService) *ExerciseHandler {
+	return &ExerciseHandler{ExerciseService: exerciseService}
+}
+
+// GetExercises handles fetching the list of exercises
+//
+// @Summary Get exercises route
+// @Description Gets a list of all exercises
+// @Tags Exercise
+// @Accept json
+// @Produce json
+// @Param page query int false "page"
+// @Param count query int false "count"
+// @Success 200 {object} response.Paginated[domain.Exercise]
+// @Error 400 {object} response.ErrorResponse "failed to decode request body"
+// @Error 400 {object} response.ErrorResponse "invalid value for page"
+// @Error 400 {object} response.ErrorResponse "invalid value for count"
+// @Error 500 {object} response.ErrorResponse "failed to get exercises"
+// @Router /exercises [get]
+func (h *ExerciseHandler) GetExercises(w http.ResponseWriter, r *http.Request) {
+	ctx := r.Context()
+
+	page, count, err := request.ParsePaginatedQueryParams(r)
+	if err != nil {
+		response.Error(ctx, w, http.StatusBadRequest, err.Error())
+		return
+	}
+
+	exercises, err := h.ExerciseService.GetExercises(ctx, page, count)
+	if err != nil {
+		slog.ErrorContext(ctx, "failed to get exercises", slog.Any("error", err))
+		response.Error(ctx, w, http.StatusInternalServerError, "failed to get exercises")
+		return
+	}
+
+	total, err := h.ExerciseService.CountExercises(ctx)
+	if err != nil {
+		slog.ErrorContext(ctx, "failed to count exercises", slog.Any("error", err))
+		response.Error(ctx, w, http.StatusInternalServerError, "failed to get exercises")
+		return
+	}
+
+	response.JSON(ctx, w, http.StatusOK, response.Paginated[domain.Exercise]{
+		Count: len(exercises),
+		Total: total,
+		Data:  exercises,
+	})
+}