price

Documentation

Index

• func Multiply(n1, n2 decimal.Decimal) decimal.Decimal
• type NormalizedPrices
  • func (np NormalizedPrices) Price(c *commodity.Commodity) (decimal.Decimal, error)
  • func (np NormalizedPrices) Valuate(c *commodity.Commodity, a decimal.Decimal) (decimal.Decimal, error)
• type Price
  • func Create(reg *registry.Registry, p *syntax.Price) (*Price, error)
• type Prices
  • func (ps Prices) Insert(commodity *commodity.Commodity, price decimal.Decimal, ...)
  • func (ps Prices) Normalize(t *commodity.Commodity) NormalizedPrices

Functions

func Multiply

func Multiply(n1, n2 decimal.Decimal) decimal.Decimal

Types

type NormalizedPrices

type NormalizedPrices map[*commodity.Commodity]decimal.Decimal

NormalizedPrices is a map representing the price of commodities in some base commodity.

func (NormalizedPrices) Price

func (np NormalizedPrices) Price(c *commodity.Commodity) (decimal.Decimal, error)

func (NormalizedPrices) Valuate

func (np NormalizedPrices) Valuate(c *commodity.Commodity, a decimal.Decimal) (decimal.Decimal, error)

Valuate valuates the given amount.

type Price

type Price struct {
	Src       *syntax.Price
	Date      time.Time
	Commodity *commodity.Commodity
	Price     decimal.Decimal
	Target    *commodity.Commodity
}

Price represents a price command.

func Create

func Create(reg *registry.Registry, p *syntax.Price) (*Price, error)

type Prices

type Prices map[*commodity.Commodity]NormalizedPrices

Prices stores the price for a commodity to a target commodity Outer map: target commodity Inner map: commodity value: price in (target commodity / commodity)

func (Prices) Insert

func (ps Prices) Insert(commodity *commodity.Commodity, price decimal.Decimal, target *commodity.Commodity)

Insert inserts a new price.

func (Prices) Normalize

func (ps Prices) Normalize(t *commodity.Commodity) NormalizedPrices

Normalize creates a normalized price map for the given commodity.