package convert

import (
	"github.com/volker-raschek/flucky/pkg/storage"
	"github.com/volker-raschek/flucky/pkg/storage/logfile"

	"github.com/spf13/cobra"
)

var (
	compression bool
	round       float64
)

// InitCmd initialize all convert subcommands
func InitCmd(cmd *cobra.Command) error {

	convertCmd := &cobra.Command{
		Use:     "convert",
		Short:   "Convert logfiles into other markup language",
		Args:    cobra.ExactArgs(2),
		Example: "flucky convert /var/log/flucky/logfile.json /var/log/flucky/logfile.csv",
		RunE:    run,
	}

	convertCmd.Flags().BoolVar(&compression, "compression", false, "Compress measured values")
	convertCmd.Flags().Float64Var(&round, "round", 0, "Round values. The value 0 deactivates the function")
	cmd.AddCommand(convertCmd)

	return nil
}

func run(cmd *cobra.Command, args []string) error {
	logfileInput := logfile.New(args[0])
	measuredValues, err := logfileInput.Read()
	if err != nil {
		return err
	}

	if round != 0 {
		storage.Round(measuredValues, round)
	}

	if compression {
		measuredValues = storage.Compression(measuredValues)
	}

	logfileOutput := logfile.New(args[1])
	err = logfileOutput.Write(measuredValues)
	if err != nil {
		return err
	}

	return nil
}