moonmath/moonmath.go

package main

import (
	"fmt"
	"os"
	"strings"

	"code.humancabbage.net/sam/moonmath/coindesk"
	"code.humancabbage.net/sam/moonmath/config"
	"code.humancabbage.net/sam/moonmath/tui"
	"github.com/alecthomas/kong"
)

var CLI struct {
	Asset      string `short:"a" default:"BTC" help:"Asset to project."`
	ConfigFile string `short:"c" help:"Path to YAML configuration file."`
}

func main() {
	ctx := kong.Parse(&CLI)
	if ctx.Error != nil {
		fail(ctx.Error)
	}
	allCfg, err := config.Load(CLI.ConfigFile)
	if err != nil {
		fail(err)
	}
	CLI.Asset = strings.ToUpper(CLI.Asset)
	cfg, err := allCfg.GetData(coindesk.Asset(CLI.Asset))
	if err != nil {
		fail(err)
	}
	p := tui.New(cfg)
	if _, err := p.Run(); err != nil {
		fail(err)
	}
}

func fail(err error) {
	fmt.Printf("program error: %v\n", err)
	os.Exit(1)
}