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package cointop
import (
"fmt"
"math"
"os"
"strings"
"github.com/cointop-sh/cointop/pkg/api"
"github.com/cointop-sh/cointop/pkg/humanize"
)
// PriceConfig is the config options for the coin price method
type PriceConfig struct {
Coin string
Currency string
APIChoice string
}
// PricesConfig is the config options for the coin prices method
type PricesConfig struct {
Coins []string
Currency string
APIChoice string
}
// PrintPrices outputs the current price of the coins
func PrintPrices(config *PricesConfig) error {
prices, err := GetCoinPrices(config)
if err != nil {
return err
}
fmt.Println(strings.Join(prices, "\n"))
return nil
}
// PrintPrice outputs the current price of the coin
func PrintPrice(config *PriceConfig) error {
prices, err := GetCoinPrices(&PricesConfig{
Coins: []string{config.Coin},
Currency: config.Currency,
APIChoice: config.APIChoice,
})
if err != nil {
return err
}
fmt.Println(prices[0])
return nil
}
// GetCoinPrices returns the current price of the specified coins
func GetCoinPrices(config *PricesConfig) ([]string, error) {
if len(config.Coins) == 0 {
return nil, ErrCoinNameOrSymbolRequired
}
var priceAPI api.Interface
if config.APIChoice == CoinMarketCap {
priceAPI = api.NewCMC("")
} else if config.APIChoice == CoinGecko {
priceAPI = api.NewCG(&api.CoinGeckoConfig{
ApiKey: os.Getenv("COINGECKO_PRO_API_KEY"),
})
} else {
return nil, ErrInvalidAPIChoice
}
var prices []string
for _, coin := range config.Coins {
price, err := priceAPI.Price(coin, config.Currency)
if err != nil {
return nil, err
}
symbol := CurrencySymbol(config.Currency)
value := fmt.Sprintf("%s%s", symbol, humanize.Monetaryf(price, 2))
prices = append(prices, value)
}
return prices, nil
}
// FormatPrice formats the coin price number of decimals and currency format
func (ct *Cointop) FormatPrice(price float64) string {
decimals := 2
if price < 1 {
decimals = 8
}
if price == math.Trunc(price) {
decimals = 2
}
return humanize.Monetaryf(price, decimals)
}
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