lot of new functionalities

core/utils/cache/cache.go

@@ -0,0 +1,74 @@
+package cache
+
+import (
+	"encoding/json"
+	"strconv"
+
+	"git.coopgo.io/coopgo-apps/parcoursmob/core/utils/storage"
+	"github.com/rs/zerolog/log"
+)
+
+type CacheService struct {
+	cache storage.CacheHandler
+}
+
+func NewCacheService(cache storage.CacheHandler) *CacheService {
+	return &CacheService{cache: cache}
+}
+
+type GetCacheResult struct {
+	Data []byte
+}
+
+func (s *CacheService) GetCacheData(cacheID string, limitsMin, limitsMax *int) (*GetCacheResult, error) {
+	d, err := s.cache.Get(cacheID)
+	if err != nil {
+		log.Error().Err(err).Msg("")
+		return nil, err
+	}
+
+	var data []any
+	if val, ok := d.([]any); ok {
+		data = val
+	} else {
+		data = []any{d}
+	}
+
+	result := data
+	if limitsMin != nil {
+		min := *limitsMin
+		if limitsMax != nil {
+			max := *limitsMax
+			if max > len(data) {
+				result = data[min:]
+			} else {
+				result = data[min:max]
+			}
+		} else {
+			result = data[min:]
+		}
+	}
+
+	j, err := json.Marshal(result)
+	if err != nil {
+		return nil, err
+	}
+
+	return &GetCacheResult{
+		Data: j,
+	}, nil
+}
+
+func ParseLimits(limitsMinStr, limitsMaxStr string) (limitsMin, limitsMax *int) {
+	if limitsMinStr != "" {
+		if min, err := strconv.Atoi(limitsMinStr); err == nil {
+			limitsMin = &min
+		}
+	}
+	if limitsMaxStr != "" {
+		if max, err := strconv.Atoi(limitsMaxStr); err == nil {
+			limitsMax = &max
+		}
+	}
+	return
+}