feat: implementar webapp app_compartir con visor universal, auth y purga 24h para guest

internal/models/models.go

@@ -0,0 +1,60 @@
+package models
+
+import (
+	"fmt"
+	"time"
+)
+
+type User struct {
+	ID         string    `json:"id"`
+	Provider   string    `json:"provider"` // "webcontrol" | "google"
+	ProviderID string    `json:"provider_id"`
+	Email      string    `json:"email"`
+	Name       string    `json:"name"`
+	AvatarURL  string    `json:"avatar_url"`
+	CreatedAt  time.Time `json:"created_at"`
+}
+
+type Session struct {
+	Token     string    `json:"token"`
+	UserID    *string   `json:"user_id"`
+	IsGuest   bool      `json:"is_guest"`
+	GuestID   string    `json:"guest_id"`
+	CreatedAt time.Time `json:"created_at"`
+	ExpiresAt time.Time `json:"expires_at"`
+	User      *User     `json:"user,omitempty"`
+}
+
+type Share struct {
+	ID             string     `json:"id"`
+	UserID         *string    `json:"user_id"`
+	UserDisplay    string     `json:"user_display"`
+	IsGuest        bool       `json:"is_guest"`
+	Type           string     `json:"type"` // "file" | "text"
+	Title          string     `json:"title"`
+	StoredPath     string     `json:"stored_path"`
+	FileSize       int64      `json:"file_size"`
+	MimeType       string     `json:"mime_type"`
+	TextContent    string     `json:"text_content"`
+	ViewsCount     int        `json:"views_count"`
+	DownloadsCount int        `json:"downloads_count"`
+	CreatedAt      time.Time  `json:"created_at"`
+	ExpiresAt      *time.Time `json:"expires_at"` // NULL si registrado, NOW+24h si guest
+}
+
+func (s *Share) FormattedSize() string {
+	if s.FileSize == 0 {
+		return "0 B"
+	}
+	const unit = 1024
+	if s.FileSize < unit {
+		return fmt.Sprintf("%d B", s.FileSize)
+	}
+	div, exp := int64(unit), 0
+	for n := s.FileSize / unit; n >= unit; n /= unit {
+		div *= unit
+		exp++
+	}
+	units := []string{"KB", "MB", "GB", "TB"}
+	return fmt.Sprintf("%.1f %s", float64(s.FileSize)/float64(div), units[exp])
+}