feat: activity log backend foundation

api/handlers/settings/settingsHandler.go

@@ -1,21 +1,76 @@
 package settings
 
 import (
+	"RenewCMS/api/pkg/apperr"
+	validator "RenewCMS/api/pkg/validator"
+	"RenewCMS/internal/domain/audit"
 	"RenewCMS/internal/infrastructure/useCases"
 	"encoding/json"
+	"errors"
 	"net/http"
+	"time"
 )
 
 type Handler struct {
-	GetSettingsUseCase *useCases.GetSettingsUseCase
+	GetSettingsUseCase             *useCases.GetSettingsUseCase
+	GetActivityRetentionUseCase    *useCases.GetActivityRetentionUseCase
+	UpdateActivityRetentionUseCase *useCases.UpdateActivityRetentionUseCase
 }
 
-func NewHandler(getSettings *useCases.GetSettingsUseCase) *Handler {
-	return &Handler{GetSettingsUseCase: getSettings}
+type UpdateSettingsRequest struct {
+	ActivityRetentionDays *int `json:"activity_retention_days" validate:"required,oneof=0 30 90 365"`
+}
+
+type settingsResponse struct {
+	Version                    string     `json:"version"`
+	ActivityRetentionDays      int        `json:"activity_retention_days"`
+	ActivityLastCleanupAt      *time.Time `json:"activity_last_cleanup_at"`
+	ActivityLastCleanupRemoved int        `json:"activity_last_cleanup_removed"`
+}
+
+func NewHandler(getSettings *useCases.GetSettingsUseCase, getRetention *useCases.GetActivityRetentionUseCase, updateRetention *useCases.UpdateActivityRetentionUseCase) *Handler {
+	return &Handler{GetSettingsUseCase: getSettings, GetActivityRetentionUseCase: getRetention, UpdateActivityRetentionUseCase: updateRetention}
 }
 
 func (h *Handler) GetSettings(w http.ResponseWriter, _ *http.Request) {
-	body, err := json.Marshal(h.GetSettingsUseCase.GetSettings())
+	retention, err := h.GetActivityRetentionUseCase.GetActivityRetention()
+	if err != nil {
+		http.Error(w, "Internal server error", http.StatusInternalServerError)
+		return
+	}
+	h.write(w, retention)
+}
+
+func (h *Handler) UpdateSettings(w http.ResponseWriter, r *http.Request) {
+	var request UpdateSettingsRequest
+	if err := json.NewDecoder(r.Body).Decode(&request); err != nil {
+		http.Error(w, apperr.BodyErrorMessage, http.StatusBadRequest)
+		return
+	}
+	if err := validator.Validate.Struct(request); err != nil {
+		http.Error(w, apperr.BodyErrorMessage, http.StatusBadRequest)
+		return
+	}
+
+	retention, err := h.UpdateActivityRetentionUseCase.UpdateActivityRetention(r.Context(), *request.ActivityRetentionDays)
+	if err != nil {
+		if errors.Is(err, audit.ErrInvalidRetention) {
+			http.Error(w, apperr.BodyErrorMessage, http.StatusBadRequest)
+			return
+		}
+		http.Error(w, "Internal server error", http.StatusInternalServerError)
+		return
+	}
+	h.write(w, retention)
+}
+
+func (h *Handler) write(w http.ResponseWriter, retention audit.Settings) {
+	body, err := json.Marshal(settingsResponse{
+		Version:                    h.GetSettingsUseCase.GetSettings().Version,
+		ActivityRetentionDays:      retention.RetentionDays,
+		ActivityLastCleanupAt:      retention.LastCleanupAt,
+		ActivityLastCleanupRemoved: retention.LastCleanupRemoved,
+	})
 	if err != nil {
 		http.Error(w, "Internal server error", http.StatusInternalServerError)
 		return