package app

import (
	"os"
	"strings"

	"coopcloud.tech/abra/cli/internal"
	"coopcloud.tech/abra/pkg/autocomplete"
	"github.com/sirupsen/logrus"
	"github.com/urfave/cli/v2"
)

var appCpCommand = &cli.Command{
	Name:      "cp",
	Aliases:   []string{"c"},
	ArgsUsage: "<src> <dst>",
	Usage:     "Copy files to/from a running app service",
	Description: `
This command supports copying files to and from any app service file system.

If you want to copy a myfile.txt to the root of the app service:

    abra app cp <app> myfile.txt app:/

And if you want to copy that file back to your current working directory locally:

		abra app cp <app> app:/myfile.txt .

`,
	Action: func(c *cli.Context) error {
		app := internal.ValidateApp(c)

		src := c.Args().Get(1)
		dst := c.Args().Get(2)
		if src == "" {
			logrus.Fatal("missing <src> argument")
		} else if dst == "" {
			logrus.Fatal("missing <dest> argument")
		}

		parsedSrc := strings.SplitN(src, ":", 2)
		parsedDst := strings.SplitN(dst, ":", 2)
		errorMsg := "one of <src>/<dest> arguments must take $SERVICE:$PATH form"
		if len(parsedSrc) == 2 && len(parsedDst) == 2 {
			logrus.Fatal(errorMsg)
		} else if len(parsedSrc) != 2 {
			if len(parsedDst) != 2 {
				logrus.Fatal(errorMsg)
			}
		} else if len(parsedDst) != 2 {
			if len(parsedSrc) != 2 {
				logrus.Fatal(errorMsg)
			}
		}

		var service string
		var srcPath string
		var dstPath string
		isToContainer := false // <container:src> <dst>
		if len(parsedSrc) == 2 {
			service = parsedSrc[0]
			srcPath = parsedSrc[1]
			dstPath = dst
			logrus.Debugf("assuming transfer is coming FROM the container")
		} else if len(parsedDst) == 2 {
			service = parsedDst[0]
			dstPath = parsedDst[1]
			srcPath = src
			isToContainer = true // <src> <container:dst>
			logrus.Debugf("assuming transfer is going TO the container")
		}

		if !isToContainer {
			if _, err := os.Stat(dstPath); os.IsNotExist(err) {
				logrus.Fatalf("%s does not exist locally?", dstPath)
			}
		}
		err := internal.ConfigureAndCp(c, app, srcPath, dstPath, service, isToContainer)
		if err != nil {
			logrus.Fatal(err)
		}
		return nil

	},
	BashComplete: autocomplete.AppNameComplete,
}