package main

import (
	"github.com/rs/zerolog"
	"github.com/urfave/cli/v2"

	"github.com/cloudflare/cloudflared/cmd/cloudflared/cliutil"
	"github.com/cloudflare/cloudflared/cmd/cloudflared/tunnel"
)

type buildArgsFunc = func(c *cli.Context, log *zerolog.Logger) ([]string, map[string]string, error)

func buildArgsForToken(c *cli.Context, log *zerolog.Logger) ([]string, map[string]string, error) {
	token := c.Args().First()
	if _, err := tunnel.ParseToken(token); err != nil {
		return nil, nil, cliutil.UsageError("Provided tunnel token is not valid (%s).", err)
	}

	return []string{"tunnel", "run"},
		map[string]string{"TUNNEL_TOKEN": token},
		nil
}

func getServiceExtraArgsFromCliArgs(c *cli.Context, log *zerolog.Logger) ([]string, map[string]string, error) {
	if c.NArg() > 0 {
		// currently, we only support extra args for token
		return buildArgsForToken(c, log)
	} else {
		// empty extra args
		return make([]string, 0), nil, nil
	}
}