Initial commit: Open sourcing all of the Maple Open Technologies code.

cloud/maplepress-backend/internal/domain/tenant/entity.go

@@ -0,0 +1,75 @@
+package tenant
+
+import (
+	"errors"
+	"regexp"
+	"time"
+)
+
+var (
+	ErrNameRequired   = errors.New("tenant name is required")
+	ErrNameTooShort   = errors.New("tenant name must be at least 2 characters")
+	ErrNameTooLong    = errors.New("tenant name must not exceed 100 characters")
+	ErrSlugRequired   = errors.New("tenant slug is required")
+	ErrSlugInvalid    = errors.New("tenant slug must contain only lowercase letters, numbers, and hyphens")
+	ErrTenantNotFound = errors.New("tenant not found")
+	ErrTenantExists   = errors.New("tenant already exists")
+	ErrTenantInactive = errors.New("tenant is inactive")
+)
+
+// Status represents the tenant's current status
+type Status string
+
+const (
+	StatusActive    Status = "active"
+	StatusInactive  Status = "inactive"
+	StatusSuspended Status = "suspended"
+)
+
+// Tenant represents a tenant in the system
+// Each tenant is a separate customer/organization
+type Tenant struct {
+	ID        string
+	Name      string // Display name (e.g., "Acme Corporation")
+	Slug      string // URL-friendly identifier (e.g., "acme-corp")
+	Status    Status
+	CreatedAt time.Time
+	UpdatedAt time.Time
+
+	// CWE-359: IP address tracking for GDPR compliance (90-day expiration)
+	CreatedFromIPAddress    string    // Encrypted IP address
+	CreatedFromIPTimestamp  time.Time // For 90-day expiration tracking
+	ModifiedFromIPAddress   string    // Encrypted IP address
+	ModifiedFromIPTimestamp time.Time // For 90-day expiration tracking
+}
+
+var slugRegex = regexp.MustCompile(`^[a-z0-9]+(?:-[a-z0-9]+)*$`)
+
+// Validate validates the tenant entity
+func (t *Tenant) Validate() error {
+	// Name validation
+	if t.Name == "" {
+		return ErrNameRequired
+	}
+	if len(t.Name) < 2 {
+		return ErrNameTooShort
+	}
+	if len(t.Name) > 100 {
+		return ErrNameTooLong
+	}
+
+	// Slug validation
+	if t.Slug == "" {
+		return ErrSlugRequired
+	}
+	if !slugRegex.MatchString(t.Slug) {
+		return ErrSlugInvalid
+	}
+
+	return nil
+}
+
+// IsActive returns true if the tenant is active
+func (t *Tenant) IsActive() bool {
+	return t.Status == StatusActive
+}