package models

// Ledger represents an independent accounting book for separating different accounting scenarios
// Feature: accounting-feature-upgrade
// Validates: Requirements 3.1
type Ledger struct {
	BaseModel
	UserID     uint   `gorm:"not null;index" json:"user_id"`
	Name       string `gorm:"size:100;not null" json:"name"`
	Theme      string `gorm:"size:50" json:"theme"` // pink, beige, brown
	CoverImage string `gorm:"size:255" json:"cover_image"`
	IsDefault  bool   `gorm:"default:false" json:"is_default"`
	SortOrder  int    `gorm:"default:0" json:"sort_order"`

	// Relationships
	Transactions []Transaction `gorm:"foreignKey:LedgerID" json:"-"`
}

// TableName specifies the table name for Ledger
func (Ledger) TableName() string {
	return "ledgers"
}

// MaxLedgersPerUser is the maximum number of ledgers a user can create
// Feature: accounting-feature-upgrade
// Validates: Requirements 3.12
const MaxLedgersPerUser = 10