renamed structs and interfaces to reduce ambiguity

pkg/exchangerates/exchange_rates_data_provider_container.go

@@ -0,0 +1,88 @@
+package exchangerates
+
+import (
+	"github.com/mayswind/ezbookkeeping/pkg/core"
+	"github.com/mayswind/ezbookkeeping/pkg/errs"
+	"github.com/mayswind/ezbookkeeping/pkg/models"
+	"github.com/mayswind/ezbookkeeping/pkg/settings"
+)
+
+// ExchangeRatesDataProviderContainer contains the current exchange rates data provider
+type ExchangeRatesDataProviderContainer struct {
+	current ExchangeRatesDataProvider
+}
+
+// Initialize a exchange rates data provider container singleton instance
+var (
+	Container = &ExchangeRatesDataProviderContainer{}
+)
+
+// InitializeExchangeRatesDataSource initializes the current exchange rates data source according to the config
+func InitializeExchangeRatesDataSource(config *settings.Config) error {
+	if config.ExchangeRatesDataSource == settings.ReserveBankOfAustraliaDataSource {
+		Container.current = newCommonHttpExchangeRatesDataProvider(&ReserveBankOfAustraliaDataSource{})
+		return nil
+	} else if config.ExchangeRatesDataSource == settings.BankOfCanadaDataSource {
+		Container.current = newCommonHttpExchangeRatesDataProvider(&BankOfCanadaDataSource{})
+		return nil
+	} else if config.ExchangeRatesDataSource == settings.CzechNationalBankDataSource {
+		Container.current = newCommonHttpExchangeRatesDataProvider(&CzechNationalBankDataSource{})
+		return nil
+	} else if config.ExchangeRatesDataSource == settings.DanmarksNationalbankDataSource {
+		Container.current = newCommonHttpExchangeRatesDataProvider(&DanmarksNationalbankDataSource{})
+		return nil
+	} else if config.ExchangeRatesDataSource == settings.EuroCentralBankDataSource {
+		Container.current = newCommonHttpExchangeRatesDataProvider(&EuroCentralBankDataSource{})
+		return nil
+	} else if config.ExchangeRatesDataSource == settings.NationalBankOfGeorgiaDataSource {
+		Container.current = newCommonHttpExchangeRatesDataProvider(&NationalBankOfGeorgiaDataSource{})
+		return nil
+	} else if config.ExchangeRatesDataSource == settings.CentralBankOfHungaryDataSource {
+		Container.current = newCommonHttpExchangeRatesDataProvider(&CentralBankOfHungaryDataSource{})
+		return nil
+	} else if config.ExchangeRatesDataSource == settings.BankOfIsraelDataSource {
+		Container.current = newCommonHttpExchangeRatesDataProvider(&BankOfIsraelDataSource{})
+		return nil
+	} else if config.ExchangeRatesDataSource == settings.CentralBankOfMyanmarDataSource {
+		Container.current = newCommonHttpExchangeRatesDataProvider(&CentralBankOfMyanmarDataSource{})
+		return nil
+	} else if config.ExchangeRatesDataSource == settings.NorgesBankDataSource {
+		Container.current = newCommonHttpExchangeRatesDataProvider(&NorgesBankDataSource{})
+		return nil
+	} else if config.ExchangeRatesDataSource == settings.NationalBankOfPolandDataSource {
+		Container.current = newCommonHttpExchangeRatesDataProvider(&NationalBankOfPolandDataSource{})
+		return nil
+	} else if config.ExchangeRatesDataSource == settings.NationalBankOfRomaniaDataSource {
+		Container.current = newCommonHttpExchangeRatesDataProvider(&NationalBankOfRomaniaDataSource{})
+		return nil
+	} else if config.ExchangeRatesDataSource == settings.BankOfRussiaDataSource {
+		Container.current = newCommonHttpExchangeRatesDataProvider(&BankOfRussiaDataSource{})
+		return nil
+	} else if config.ExchangeRatesDataSource == settings.SwissNationalBankDataSource {
+		Container.current = newCommonHttpExchangeRatesDataProvider(&SwissNationalBankDataSource{})
+		return nil
+	} else if config.ExchangeRatesDataSource == settings.NationalBankOfUkraineDataSource {
+		Container.current = newCommonHttpExchangeRatesDataProvider(&NationalBankOfUkraineDataSource{})
+		return nil
+	} else if config.ExchangeRatesDataSource == settings.CentralBankOfUzbekistanDataSource {
+		Container.current = newCommonHttpExchangeRatesDataProvider(&CentralBankOfUzbekistanDataSource{})
+		return nil
+	} else if config.ExchangeRatesDataSource == settings.InternationalMonetaryFundDataSource {
+		Container.current = newCommonHttpExchangeRatesDataProvider(&InternationalMonetaryFundDataSource{})
+		return nil
+	} else if config.ExchangeRatesDataSource == settings.UserCustomExchangeRatesDataSource {
+		Container.current = newUserCustomExchangeRatesDataProvider()
+		return nil
+	}
+
+	return errs.ErrInvalidExchangeRatesDataSource
+}
+
+// GetLatestExchangeRates returns the latest exchange rates data from the current exchange rates data source
+func (e *ExchangeRatesDataProviderContainer) GetLatestExchangeRates(c core.Context, uid int64, currentConfig *settings.Config) (*models.LatestExchangeRateResponse, error) {
+	if Container.current == nil {
+		return nil, errs.ErrInvalidExchangeRatesDataSource
+	}
+
+	return e.current.GetLatestExchangeRates(c, uid, currentConfig)
+}