package server

import (
	"io/fs"
	"os"
	"path/filepath"
	"strings"
	"testing"

	"github.com/go-git/go-git/v5"
	"github.com/go-git/go-git/v5/plumbing"
)

func TestGit(t *testing.T) {
	path := "test/k6"

	dir, err := os.MkdirTemp("", "discovery")
	if err != nil {
		t.Fatal("can't create temp dir")
	}

	r, err := git.PlainClone(dir, false, &git.CloneOptions{
		URL:               "https://github.com/kubeshop/testkube.git",
		NoCheckout:        true,
		SingleBranch:      true,
		Depth:             1,
		Tags:              git.NoTags,
		ShallowSubmodules: true,
		ReferenceName:     plumbing.ReferenceName("refs/heads/main"),
	})
	if err != nil {
		t.Fatal("can't clone repository")
	}

	w, err := r.Worktree()
	if err != nil {
		t.Fatal("can't get a worktree")
	}

	options := &git.CheckoutOptions{
		Branch: plumbing.ReferenceName("refs/remotes/origin/main"),
	}
	if path != "" {
		options.SparseCheckoutDirectories = []string{"test/k6"}
	}

	err = w.Checkout(options)
	if err != nil {
		t.Fatal("can't checkout repository")
	}

	pathCheckedOut := false
	filepath.Walk(dir, func(f string, info fs.FileInfo, err error) error {
		t.Logf("- %s", f)
		if err != nil {
			return err
		}

		if strings.Contains(f, "test/k6") {
			pathCheckedOut = true
		}

		return nil
	})

	if !pathCheckedOut {
		t.Fatal("path not checked out")
	}
}