package projectversion

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

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

func TestCheckReleaseAssets(t *testing.T) {
	t.Run("valid assets", func(t *testing.T) {
		root := setupReleaseAssetRoot(t)

		require.NoError(t, CheckReleaseAssets(root))
	})

	t.Run("lfs pointer", func(t *testing.T) {
		root := setupReleaseAssetRoot(t)
		writeReleaseAsset(t, root, "assets/icon.ico", []byte("version https://git-lfs.github.com/spec/v1\noid sha256:abc\nsize 123\n"))

		err := CheckReleaseAssets(root)

		require.Error(t, err)
		assert.Contains(t, err.Error(), "assets/icon.ico 是 Git LFS pointer")
	})

	t.Run("invalid format", func(t *testing.T) {
		root := setupReleaseAssetRoot(t)
		writeReleaseAsset(t, root, "frontend/public/icon.png", []byte("not a png"))

		err := CheckReleaseAssets(root)

		require.Error(t, err)
		assert.Contains(t, err.Error(), "frontend/public/icon.png 不是有效的前端 PNG 图标")
	})
}

func setupReleaseAssetRoot(t *testing.T) string {
	t.Helper()

	root := t.TempDir()
	writeReleaseAsset(t, root, "assets/icon.ico", []byte{0x00, 0x00, 0x01, 0x00, 0x01})
	writeReleaseAsset(t, root, "assets/icon.icns", []byte("icnsdata"))
	writeReleaseAsset(t, root, "assets/icon.png", []byte{0x89, 0x50, 0x4e, 0x47, 0x0d, 0x0a, 0x1a, 0x0a, 0x00})
	writeReleaseAsset(t, root, "frontend/public/icon.png", []byte{0x89, 0x50, 0x4e, 0x47, 0x0d, 0x0a, 0x1a, 0x0a, 0x00})

	return root
}

func writeReleaseAsset(t *testing.T, root, relPath string, content []byte) {
	t.Helper()

	fullPath := filepath.Join(root, relPath)
	require.NoError(t, os.MkdirAll(filepath.Dir(fullPath), 0o755))
	require.NoError(t, os.WriteFile(fullPath, content, 0o600))
}