backend api, swagger, tooling, frontend skeleton

backend/internal/handlers/helpers.go

@@ -0,0 +1,108 @@
+package handlers
+
+import (
+	"os"
+	"strconv"
+	"strings"
+	"time"
+
+	"gitea.maison43.duckdns.org/gilles/matosbox/internal/data/ent/objet"
+)
+
+// parseDateTime parse une date ISO-8601.
+func parseDateTime(value string) (time.Time, error) {
+	return time.Parse(time.RFC3339, value)
+}
+
+// resolveCategorie determine la categorie d'une piece jointe.
+func resolveCategorie(ext string, mime string) string {
+	ext = strings.ToLower(ext)
+	mime = strings.ToLower(mime)
+	if ext == ".md" || mime == "text/markdown" {
+		return "markdown_tuto"
+	}
+	if mime == "application/pdf" || ext == ".pdf" {
+		return "pdf_notice"
+	}
+	if strings.HasPrefix(mime, "image/") {
+		return "image"
+	}
+	return "image"
+}
+
+// maxUploadBytes retourne la taille max d'un fichier en octets.
+func maxUploadBytes() int64 {
+	const defaultMB = 50
+	value := os.Getenv("MAX_UPLOAD_MB")
+	if value == "" {
+		return defaultMB * 1024 * 1024
+	}
+	parsed, err := strconv.Atoi(value)
+	if err != nil || parsed <= 0 {
+		return defaultMB * 1024 * 1024
+	}
+	return int64(parsed) * 1024 * 1024
+}
+
+// parsePagination calcule la limite et l'offset a partir des params page/limit.
+func parsePagination(pageValue string, limitValue string) (int, int, int) {
+	const (
+		defaultLimit = 50
+		maxLimit     = 200
+	)
+
+	page := 1
+	if pageValue != "" {
+		if parsed, err := strconv.Atoi(pageValue); err == nil && parsed > 0 {
+			page = parsed
+		}
+	}
+
+	limit := defaultLimit
+	if limitValue != "" {
+		if parsed, err := strconv.Atoi(limitValue); err == nil && parsed > 0 {
+			limit = parsed
+		}
+	}
+	if limit > maxLimit {
+		limit = maxLimit
+	}
+
+	offset := (page - 1) * limit
+	return limit, offset, page
+}
+
+// isAllowedUpload valide le type de fichier (images, PDF, Markdown).
+func isAllowedUpload(mime string, ext string) bool {
+	mime = strings.ToLower(mime)
+	ext = strings.ToLower(ext)
+	if strings.HasPrefix(mime, "image/") {
+		return true
+	}
+	if mime == "application/pdf" || ext == ".pdf" {
+		return true
+	}
+	if mime == "text/markdown" || ext == ".md" || ext == ".markdown" {
+		return true
+	}
+	if mime == "text/plain" && (ext == ".md" || ext == ".markdown") {
+		return true
+	}
+	return false
+}
+
+// parseStatut convertit un statut texte vers l'enum Ent.
+func parseStatut(value string) (objet.Statut, bool) {
+	switch value {
+	case "en_stock":
+		return objet.StatutEnStock, true
+	case "pret":
+		return objet.StatutPret, true
+	case "hors_service":
+		return objet.StatutHorsService, true
+	case "archive":
+		return objet.StatutArchive, true
+	default:
+		return "", false
+	}
+}