package database

import (
	"os"
	"path/filepath"
	"testing"

	"github.com/stretchr/testify/assert"
	"github.com/stretchr/testify/require"

	"gogs.io/gogs/internal/conf"
	"gogs.io/gogs/internal/markup"
	"gogs.io/gogs/internal/osutil"
)

func TestRepository_ComposeMetas(t *testing.T) {
	repo := &Repository{
		Name: "testrepo",
		Owner: &User{
			Name: "testuser",
		},
		ExternalTrackerFormat: "https://someurl.com/{user}/{repo}/{issue}",
	}

	t.Run("no external tracker is configured", func(t *testing.T) {
		repo.EnableExternalTracker = false

		metas := repo.ComposeMetas()
		assert.Equal(t, metas["repoLink"], repo.Link())

		// Should not have format and style if no external tracker is configured
		_, ok := metas["format"]
		assert.False(t, ok)
		_, ok = metas["style"]
		assert.False(t, ok)
	})

	t.Run("an external issue tracker is configured", func(t *testing.T) {
		repo.ExternalMetas = nil
		repo.EnableExternalTracker = true

		// Default to numeric issue style
		assert.Equal(t, markup.IssueNameStyleNumeric, repo.ComposeMetas()["style"])
		repo.ExternalMetas = nil

		repo.ExternalTrackerStyle = markup.IssueNameStyleNumeric
		assert.Equal(t, markup.IssueNameStyleNumeric, repo.ComposeMetas()["style"])
		repo.ExternalMetas = nil

		repo.ExternalTrackerStyle = markup.IssueNameStyleAlphanumeric
		assert.Equal(t, markup.IssueNameStyleAlphanumeric, repo.ComposeMetas()["style"])
		repo.ExternalMetas = nil

		metas := repo.ComposeMetas()
		assert.Equal(t, "testuser", metas["user"])
		assert.Equal(t, "testrepo", metas["repo"])
		assert.Equal(t, "https://someurl.com/{user}/{repo}/{issue}", metas["format"])
	})
}

func Test_CreateRepository_PreventDeletion(t *testing.T) {
	tempRepositoryRoot := filepath.Join(os.TempDir(), "createRepository-tempRepositoryRoot")
	conf.SetMockRepository(
		t,
		conf.RepositoryOpts{
			Root: tempRepositoryRoot,
		},
	)
	err := os.RemoveAll(tempRepositoryRoot)
	require.NoError(t, err)
	defer func() { _ = os.RemoveAll(tempRepositoryRoot) }()

	owner := &User{Name: "testuser"}
	opts := CreateRepoOptionsLegacy{Name: "safety-test"}
	repoPath := RepoPath(owner.Name, opts.Name)
	require.NoError(t, os.MkdirAll(repoPath, os.ModePerm))

	canary := filepath.Join(repoPath, "canary.txt")
	require.NoError(t, os.WriteFile(canary, []byte("should survive"), 0o644))

	_, err = CreateRepository(owner, owner, opts)
	require.Error(t, err)
	assert.Contains(t, err.Error(), "repository directory already exists")
	assert.True(t, osutil.Exist(canary))
}