package proxy

import (
	"net/url"
	"os"

	"forge.cadoles.com/cadoles/bouncer/internal/client"
	"forge.cadoles.com/cadoles/bouncer/internal/command/admin/apierr"
	clientFlag "forge.cadoles.com/cadoles/bouncer/internal/command/admin/flag"
	proxyFlag "forge.cadoles.com/cadoles/bouncer/internal/command/admin/proxy/flag"
	"forge.cadoles.com/cadoles/bouncer/internal/format"
	"github.com/pkg/errors"
	"github.com/urfave/cli/v2"
)

func CreateCommand() *cli.Command {
	return &cli.Command{
		Name:  "create",
		Usage: "Create proxy",
		Flags: proxyFlag.WithProxyFlags(
			&cli.StringFlag{
				Name:     "to",
				Usage:    "Set `TO` as proxy's destination url",
				Value:    "",
				Required: true,
			},
			&cli.StringSliceFlag{
				Name:  "from",
				Usage: "Set `FROM` as proxy's patterns to match incoming requests",
				Value: cli.NewStringSlice("*"),
			},
		),
		Action: func(ctx *cli.Context) error {
			baseFlags := clientFlag.GetBaseFlags(ctx)

			token, err := clientFlag.GetToken(baseFlags)
			if err != nil {
				return errors.WithStack(apierr.Wrap(err))
			}

			proxyName, err := proxyFlag.AssertProxyName(ctx)
			if err != nil {
				return errors.Wrap(err, "'to' parameter should be a valid url")
			}

			to, err := url.Parse(ctx.String("to"))
			if err != nil {
				return errors.Wrap(err, "'to' parameter should be a valid url")
			}

			from := ctx.StringSlice("from")

			client := client.New(baseFlags.ServerURL, client.WithToken(token))

			proxy, err := client.CreateProxy(ctx.Context, proxyName, to, from)
			if err != nil {
				return errors.WithStack(apierr.Wrap(err))
			}

			hints := proxyHints(baseFlags.OutputMode)

			if err := format.Write(baseFlags.Format, os.Stdout, hints, proxy); err != nil {
				return errors.WithStack(err)
			}

			return nil
		},
	}
}