// Copyright 2017 The Gitea Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.

package models

import (
	"bytes"
	"crypto/md5"
	"fmt"
	"image"
	"image/png"
	"testing"

	"code.gitea.io/gitea/modules/markup"

	"github.com/Unknwon/com"
	"github.com/stretchr/testify/assert"
)

func TestRepo(t *testing.T) {
	repo := &Repository{Name: "testRepo"}
	repo.Owner = &User{Name: "testOwner"}

	repo.Units = nil

	metas := repo.ComposeMetas()
	assert.Equal(t, "testRepo", metas["repo"])
	assert.Equal(t, "testOwner", metas["user"])

	externalTracker := RepoUnit{
		Type: UnitTypeExternalTracker,
		Config: &ExternalTrackerConfig{
			ExternalTrackerFormat: "https://someurl.com/{user}/{repo}/{issue}",
		},
	}

	testSuccess := func(expectedStyle string) {
		repo.Units = []*RepoUnit{&externalTracker}
		repo.ExternalMetas = nil
		metas := repo.ComposeMetas()
		assert.Equal(t, expectedStyle, metas["style"])
		assert.Equal(t, "testRepo", metas["repo"])
		assert.Equal(t, "testOwner", metas["user"])
		assert.Equal(t, "https://someurl.com/{user}/{repo}/{issue}", metas["format"])
	}

	testSuccess(markup.IssueNameStyleNumeric)

	externalTracker.ExternalTrackerConfig().ExternalTrackerStyle = markup.IssueNameStyleAlphanumeric
	testSuccess(markup.IssueNameStyleAlphanumeric)

	externalTracker.ExternalTrackerConfig().ExternalTrackerStyle = markup.IssueNameStyleNumeric
	testSuccess(markup.IssueNameStyleNumeric)
}

func TestGetRepositoryCount(t *testing.T) {
	assert.NoError(t, PrepareTestDatabase())

	count, err1 := GetRepositoryCount(&User{ID: int64(10)})
	privateCount, err2 := GetPrivateRepositoryCount(&User{ID: int64(10)})
	publicCount, err3 := GetPublicRepositoryCount(&User{ID: int64(10)})
	assert.NoError(t, err1)
	assert.NoError(t, err2)
	assert.NoError(t, err3)
	assert.Equal(t, int64(3), count)
	assert.Equal(t, (privateCount + publicCount), count)
}

func TestGetPublicRepositoryCount(t *testing.T) {
	assert.NoError(t, PrepareTestDatabase())

	count, err := GetPublicRepositoryCount(&User{ID: int64(10)})
	assert.NoError(t, err)
	assert.Equal(t, int64(1), count)
}

func TestGetPrivateRepositoryCount(t *testing.T) {
	assert.NoError(t, PrepareTestDatabase())

	count, err := GetPrivateRepositoryCount(&User{ID: int64(10)})
	assert.NoError(t, err)
	assert.Equal(t, int64(2), count)
}

func TestUpdateRepositoryVisibilityChanged(t *testing.T) {
	assert.NoError(t, PrepareTestDatabase())

	// Get sample repo and change visibility
	repo, err := GetRepositoryByID(9)
	repo.IsPrivate = true

	// Update it
	err = UpdateRepository(repo, true)
	assert.NoError(t, err)

	// Check visibility of action has become private
	act := Action{}
	_, err = x.ID(3).Get(&act)

	assert.NoError(t, err)
	assert.Equal(t, true, act.IsPrivate)
}

func TestGetUserFork(t *testing.T) {
	assert.NoError(t, PrepareTestDatabase())

	// User13 has repo 11 forked from repo10
	repo, err := GetRepositoryByID(10)
	assert.NoError(t, err)
	assert.NotNil(t, repo)
	repo, err = repo.GetUserFork(13)
	assert.NoError(t, err)
	assert.NotNil(t, repo)

	repo, err = GetRepositoryByID(9)
	assert.NoError(t, err)
	assert.NotNil(t, repo)
	repo, err = repo.GetUserFork(13)
	assert.NoError(t, err)
	assert.Nil(t, repo)
}

func TestForkRepository(t *testing.T) {
	assert.NoError(t, PrepareTestDatabase())

	// user 13 has already forked repo10
	user := AssertExistsAndLoadBean(t, &User{ID: 13}).(*User)
	repo := AssertExistsAndLoadBean(t, &Repository{ID: 10}).(*Repository)

	fork, err := ForkRepository(user, user, repo, "test", "test")
	assert.Nil(t, fork)
	assert.Error(t, err)
	assert.True(t, IsErrForkAlreadyExist(err))
}

func TestRepoAPIURL(t *testing.T) {
	assert.NoError(t, PrepareTestDatabase())
	repo := AssertExistsAndLoadBean(t, &Repository{ID: 10}).(*Repository)

	assert.Equal(t, "https://try.gitea.io/api/v1/repos/user12/repo10", repo.APIURL())
}

func TestTransferOwnership(t *testing.T) {
	assert.NoError(t, PrepareTestDatabase())

	doer := AssertExistsAndLoadBean(t, &User{ID: 2}).(*User)
	repo := AssertExistsAndLoadBean(t, &Repository{ID: 3}).(*Repository)
	repo.Owner = AssertExistsAndLoadBean(t, &User{ID: repo.OwnerID}).(*User)
	assert.NoError(t, TransferOwnership(doer, "user2", repo))

	transferredRepo := AssertExistsAndLoadBean(t, &Repository{ID: 3}).(*Repository)
	assert.EqualValues(t, 2, transferredRepo.OwnerID)

	assert.False(t, com.IsExist(RepoPath("user3", "repo3")))
	assert.True(t, com.IsExist(RepoPath("user2", "repo3")))
	AssertExistsAndLoadBean(t, &Action{
		OpType:    ActionTransferRepo,
		ActUserID: 2,
		RepoID:    3,
		Content:   "user3/repo3",
	})

	CheckConsistencyFor(t, &Repository{}, &User{}, &Team{})
}

func TestUploadAvatar(t *testing.T) {

	// Generate image
	myImage := image.NewRGBA(image.Rect(0, 0, 1, 1))
	var buff bytes.Buffer
	png.Encode(&buff, myImage)

	assert.NoError(t, PrepareTestDatabase())
	repo := AssertExistsAndLoadBean(t, &Repository{ID: 10}).(*Repository)

	err := repo.UploadAvatar(buff.Bytes())
	assert.NoError(t, err)
	assert.Equal(t, fmt.Sprintf("%d-%x", 10, md5.Sum(buff.Bytes())), repo.Avatar)
}

func TestUploadBigAvatar(t *testing.T) {

	// Generate BIG image
	myImage := image.NewRGBA(image.Rect(0, 0, 5000, 1))
	var buff bytes.Buffer
	png.Encode(&buff, myImage)

	assert.NoError(t, PrepareTestDatabase())
	repo := AssertExistsAndLoadBean(t, &Repository{ID: 10}).(*Repository)

	err := repo.UploadAvatar(buff.Bytes())
	assert.Error(t, err)
}

func TestDeleteAvatar(t *testing.T) {

	// Generate image
	myImage := image.NewRGBA(image.Rect(0, 0, 1, 1))
	var buff bytes.Buffer
	png.Encode(&buff, myImage)

	assert.NoError(t, PrepareTestDatabase())
	repo := AssertExistsAndLoadBean(t, &Repository{ID: 10}).(*Repository)

	err := repo.UploadAvatar(buff.Bytes())
	assert.NoError(t, err)

	err = repo.DeleteAvatar()
	assert.NoError(t, err)

	assert.Equal(t, "", repo.Avatar)
}
