rates

package

v0.0.0-...-6669b94 Latest Latest Go to latest Published: Apr 25, 2024 License: GPL-3.0 Imports: 10 Imported by: 1

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Package rates retrieves and stores daily exchange rates.

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type History struct {
	Database    *SQLiteDB
	GetBuyRates func(lastUpdateDate string) (map[string]float64, error)
}

func (h *History) Options(date string, value float64) ([]Option, error)

Get tries the given date and four previous days.

func (h *History) RunDaemon() error

RunDaemon starts a loop which fetches the rates every hour and inserts them into the database. The function blocks.

func (h *History) Synced() bool

Synced returns whether rates have been updated since four days ago.

type Option struct {
	Currency string // from GetBuyRates result
	Price    float64
}

func (opt Option) Tr(l lang.Lang) string

ISO 4217

type SQLiteDB struct {
	// contains filtered or unexported fields
}

func OpenDB(fpath string) (*SQLiteDB, error)

func (db *SQLiteDB) Get(date string) (map[string]float64, error)

Get returns ErrNoRows if no data is found.

func (db *SQLiteDB) Insert(date string, m map[string]float64) error

func (db *SQLiteDB) LatestDate() (string, error)