package cli_test

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

	"git.hrafn.xyz/aether/gosick/internal/homesick/cli"
	"git.hrafn.xyz/aether/gosick/internal/homesick/version"
	"github.com/stretchr/testify/require"
	"github.com/stretchr/testify/suite"
)

type CLISuite struct {
	suite.Suite
	homeDir string
	stdout  *bytes.Buffer
	stderr  *bytes.Buffer
}

func TestCLISuite(t *testing.T) {
	suite.Run(t, new(CLISuite))
}

func (s *CLISuite) SetupTest() {
	s.homeDir = filepath.Join(s.T().TempDir(), "home")
	require.NoError(s.T(), os.MkdirAll(s.homeDir, 0o755))
	require.NoError(s.T(), os.Setenv("HOME", s.homeDir))

	s.stdout = &bytes.Buffer{}
	s.stderr = &bytes.Buffer{}
}

func (s *CLISuite) TestRun_VersionAliases() {
	for _, args := range [][]string{{"-v"}, {"--version"}, {"version"}} {
		s.stdout.Reset()
		s.stderr.Reset()

		exitCode := cli.Run(args, s.stdout, s.stderr)
		require.Equal(s.T(), 0, exitCode)
		require.Equal(s.T(), version.String+"\n", s.stdout.String())
		require.Empty(s.T(), s.stderr.String())
	}
}

func (s *CLISuite) TestRun_ShowPath_DefaultCastle() {
	exitCode := cli.Run([]string{"show_path"}, s.stdout, s.stderr)

	require.Equal(s.T(), 0, exitCode)
	require.Equal(s.T(), filepath.Join(s.homeDir, ".homesick", "repos", "dotfiles")+"\n", s.stdout.String())
	require.Empty(s.T(), s.stderr.String())
}

func (s *CLISuite) TestRun_CloneSubcommandHelp() {
	exitCode := cli.Run([]string{"clone", "--help"}, s.stdout, s.stderr)

	require.Equal(s.T(), 0, exitCode)
	require.Contains(s.T(), s.stdout.String(), "clone")
	require.Contains(s.T(), s.stdout.String(), "URI")
	require.Empty(s.T(), s.stderr.String())
}

func (s *CLISuite) TestRun_Help_UsesProgramNameAndDescription() {
	originalArgs := os.Args
	s.T().Cleanup(func() { os.Args = originalArgs })
	os.Args = []string{"gosick"}

	exitCode := cli.Run([]string{"--help"}, s.stdout, s.stderr)

	require.Equal(s.T(), 0, exitCode)
	require.Contains(s.T(), s.stdout.String(), "Usage: gosick")
	require.NotContains(s.T(), s.stdout.String(), "Usage: homesick")
	require.Contains(s.T(), s.stdout.String(), "precious dotfiles")
	require.Empty(s.T(), s.stderr.String())
}