package internal

import (
	"io"

	"github.com/spf13/cobra"
	"github.com/tufin/oasdiff/checker"
)

func getChecksCmd() *cobra.Command {

	cmd := cobra.Command{
		Use:               "checks [flags]",
		Short:             "Display optional checks",
		Long:              `Display optional checks that can be passed to 'breaking' and 'changelog' with the 'include-checks' flag`,
		Args:              cobra.NoArgs,
		ValidArgsFunction: cobra.NoFileCompletions, // see https://github.com/spf13/cobra/issues/1969
		RunE: func(cmd *cobra.Command, args []string) error {

			// by now flags have been parsed successfully so we don't need to show usage on any errors
			cmd.Root().SilenceUsage = true

			if err := runChecks(cmd.OutOrStdout()); err != nil {
				setReturnValue(cmd, err.Code)
				return err
			}

			return nil
		},
	}

	return &cmd
}

func runChecks(stdout io.Writer) *ReturnError {
	if err := printYAML(stdout, checker.GetOptionalChecks()); err != nil {
		return getErrFailedPrint("optional checks YAML", err)
	}
	return nil
}