package stacks

import (
	"net/http"
	"net/http/httptest"
	"os"
	"path/filepath"
	"strconv"
	"testing"

	portainer "github.com/portainer/portainer/api"
	"github.com/portainer/portainer/api/datastore"
	"github.com/portainer/portainer/api/filesystem"
	gittypes "github.com/portainer/portainer/api/git/types"
	"github.com/portainer/portainer/api/internal/testhelpers"

	"encoding/json"

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

func TestStackFile_GitPendingRedeploy_Returns409(t *testing.T) {
	_, store := datastore.MustNewTestStore(t, true, true)

	_, err := mockCreateUser(store)
	require.NoError(t, err)

	endpoint, err := mockCreateEndpoint(store)
	require.NoError(t, err)

	tempDir := t.TempDir()
	fileService, err := filesystem.NewService(tempDir, "")
	require.NoError(t, err)

	handler := NewHandler(testhelpers.NewTestRequestBouncer())
	handler.FileService = fileService
	handler.DataStore = store

	stack := &portainer.Stack{
		ID:         1,
		EndpointID: endpoint.ID,
		Type:       portainer.DockerComposeStack,
		CurrentDeploymentInfo: &portainer.StackDeploymentInfo{
			RepositoryURL:  "https://github.com/portainer/old-repo.git",
			ConfigFilePath: "docker-compose.yml",
		},
		GitConfig: &gittypes.RepoConfig{
			URL:            "https://github.com/portainer/portainer.git",
			ConfigFilePath: "docker-compose.yml",
		},
	}
	require.NoError(t, store.Stack().Create(stack))

	req := mockCreateStackRequestWithSecurityContext(
		http.MethodGet,
		"/stacks/"+strconv.Itoa(int(stack.ID))+"/file",
		nil,
	)
	rr := httptest.NewRecorder()
	handler.ServeHTTP(rr, req)

	require.Equal(t, http.StatusConflict, rr.Code)
}

func TestStackFile_MatchingGitSettings_ReturnsFileContent(t *testing.T) {
	_, store := datastore.MustNewTestStore(t, true, true)

	_, err := mockCreateUser(store)
	require.NoError(t, err)

	endpoint, err := mockCreateEndpoint(store)
	require.NoError(t, err)

	tempDir := t.TempDir()
	fileService, err := filesystem.NewService(tempDir, "")
	require.NoError(t, err)

	handler := NewHandler(testhelpers.NewTestRequestBouncer())
	handler.FileService = fileService
	handler.DataStore = store

	const repoURL = "https://github.com/portainer/portainer.git"
	const configPath = "docker-compose.yml"
	const fileContent = "version: '3'\nservices:\n  web:\n    image: nginx\n"

	require.NoError(t, os.WriteFile(filepath.Join(tempDir, configPath), []byte(fileContent), 0o644))

	stack := &portainer.Stack{
		ID:          2,
		EndpointID:  endpoint.ID,
		Type:        portainer.DockerComposeStack,
		ProjectPath: tempDir,
		EntryPoint:  configPath,
		CurrentDeploymentInfo: &portainer.StackDeploymentInfo{
			RepositoryURL:  repoURL,
			ConfigFilePath: configPath,
		},
		GitConfig: &gittypes.RepoConfig{
			URL:            repoURL,
			ConfigFilePath: configPath,
		},
	}
	require.NoError(t, store.Stack().Create(stack))

	req := mockCreateStackRequestWithSecurityContext(
		http.MethodGet,
		"/stacks/"+strconv.Itoa(int(stack.ID))+"/file",
		nil,
	)
	rr := httptest.NewRecorder()
	handler.ServeHTTP(rr, req)

	require.Equal(t, http.StatusOK, rr.Code)

	var resp stackFileResponse
	require.NoError(t, json.Unmarshal(rr.Body.Bytes(), &resp))
	require.Equal(t, fileContent, resp.StackFileContent)
}