domain

Documentation

Index

• Constants
• type Ingredient
• type IngredientAmount
• type IngredientFactory
  • func NewIngredientFacotry(idGenerator func() string) IngredientFactory
• type IngredientID
• type IngredientKind
• type IngredientRepository

Constants

const IngredientEpsilon = 0.05

IngredientEpsilon defines threshold of ingredient amount. If remained amount of ingredient is less than this value, ingredient is treated as consumed (or deleted). NOTE: without IngredientEpsilon, the system will suffer from rounding error!

Types

type Ingredient

type Ingredient struct {
	ID     IngredientID
	Kind   IngredientKind
	Amount IngredientAmount
}

aggregate roots

type IngredientAmount

type IngredientAmount float64

type IngredientFactory

type IngredientFactory interface {
	New(IngredientKind, IngredientAmount) *Ingredient
}

func NewIngredientFacotry

func NewIngredientFacotry(idGenerator func() string) IngredientFactory

type IngredientID

type IngredientID string

Value objects

type IngredientKind

type IngredientKind string

type IngredientRepository

type IngredientRepository interface {
	List(context.Context) ([]*Ingredient, error)
	Get(context.Context, IngredientID) (*Ingredient, error)
	Upsert(context.Context, *Ingredient) error
	Delete(context.Context, *Ingredient) error
}