package app

import (
	"encoding/json"
	"errors"
	"net/http"
	"net/http/httptest"
	"os"
	"path/filepath"
	stdRuntime "runtime"
	"strings"
	"testing"

	"GoNavi-Wails/internal/connection"
)

func TestFetchLatestUpdateInfoSkipsChecksumWhenCurrentVersionIsAlreadyLatest(t *testing.T) {
	assetName, err := expectedAssetName(stdRuntime.GOOS, stdRuntime.GOARCH, "v0.6.5")
	if err != nil {
		t.Fatalf("expectedAssetName returned error: %v", err)
	}

	originalVersion := AppVersion
	AppVersion = "0.6.5"
	defer func() {
		AppVersion = originalVersion
	}()

	releaseCalled := false
	restoreRelease := swapUpdateFetchLatestRelease(func() (*githubRelease, error) {
		releaseCalled = true
		return &githubRelease{
			TagName:     "v0.6.5",
			Name:        "v0.6.5",
			HTMLURL:     "https://github.com/Syngnat/GoNavi/releases/tag/v0.6.5",
			PublishedAt: "2026-07-08T11:15:00Z",
			Assets: []githubAsset{
				{
					Name:               assetName,
					BrowserDownloadURL: "https://example.com/" + assetName,
					Size:               1024,
				},
			},
		}, nil
	})
	defer restoreRelease()

	checksumCalled := false
	restoreChecksum := swapUpdateFetchReleaseSHA256(func([]githubAsset) (map[string]string, error) {
		checksumCalled = true
		return nil, errors.New("checksum should not be fetched when no update is needed")
	})
	defer restoreChecksum()

	info, err := fetchLatestUpdateInfo(updateChannelLatest)
	if err != nil {
		t.Fatalf("fetchLatestUpdateInfo returned error: %v", err)
	}
	if !releaseCalled {
		t.Fatal("expected latest release metadata to be fetched")
	}
	if checksumCalled {
		t.Fatal("expected SHA256SUMS fetch to be skipped when current version is already latest")
	}
	if info.HasUpdate {
		t.Fatalf("expected HasUpdate=false, got %#v", info)
	}
	if info.LatestVersion != "0.6.5" || info.CurrentVersion != "0.6.5" {
		t.Fatalf("unexpected version info: %#v", info)
	}
}

func TestFetchLatestUpdateInfoUsesAssetDigestWhenUpdateIsAvailable(t *testing.T) {
	assetName, err := expectedAssetName(stdRuntime.GOOS, stdRuntime.GOARCH, "v0.6.5")
	if err != nil {
		t.Fatalf("expectedAssetName returned error: %v", err)
	}
	digest := strings.Repeat("A", 64)

	originalVersion := AppVersion
	AppVersion = "0.6.4"
	defer func() {
		AppVersion = originalVersion
	}()

	restoreRelease := swapUpdateFetchLatestRelease(func() (*githubRelease, error) {
		return &githubRelease{
			TagName:     "v0.6.5",
			Name:        "v0.6.5",
			HTMLURL:     "https://github.com/Syngnat/GoNavi/releases/tag/v0.6.5",
			PublishedAt: "2026-07-08T11:15:00Z",
			Assets: []githubAsset{
				{
					Name:               assetName,
					BrowserDownloadURL: "https://example.com/" + assetName,
					Digest:             "sha256:" + digest,
					Size:               4096,
				},
			},
		}, nil
	})
	defer restoreRelease()

	checksumCalled := false
	restoreChecksum := swapUpdateFetchReleaseSHA256(func([]githubAsset) (map[string]string, error) {
		checksumCalled = true
		return nil, errors.New("checksum should not be fetched when asset digest is available")
	})
	defer restoreChecksum()

	info, err := fetchLatestUpdateInfo(updateChannelLatest)
	if err != nil {
		t.Fatalf("fetchLatestUpdateInfo returned error: %v", err)
	}
	if checksumCalled {
		t.Fatal("expected SHA256SUMS fetch to be skipped when asset digest is available")
	}
	if !info.HasUpdate {
		t.Fatalf("expected HasUpdate=true, got %#v", info)
	}
	if info.SHA256 != strings.ToLower(digest) || info.AssetName != assetName {
		t.Fatalf("unexpected update info: %#v", info)
	}
	if info.ReleasePublishedAt != "2026-07-08T11:15:00Z" {
		t.Fatalf("expected release published time to be preserved, got %#v", info)
	}
}

func TestFetchLatestUpdateInfoFallsBackToChecksumFileWhenAssetDigestMissing(t *testing.T) {
	assetName, err := expectedAssetName(stdRuntime.GOOS, stdRuntime.GOARCH, "v0.6.5")
	if err != nil {
		t.Fatalf("expectedAssetName returned error: %v", err)
	}

	originalVersion := AppVersion
	AppVersion = "0.6.4"
	defer func() {
		AppVersion = originalVersion
	}()

	restoreRelease := swapUpdateFetchLatestRelease(func() (*githubRelease, error) {
		return &githubRelease{
			TagName: "v0.6.5",
			Name:    "v0.6.5",
			HTMLURL: "https://github.com/Syngnat/GoNavi/releases/tag/v0.6.5",
			Assets: []githubAsset{
				{
					Name:               assetName,
					BrowserDownloadURL: "https://example.com/" + assetName,
					Size:               4096,
				},
			},
		}, nil
	})
	defer restoreRelease()

	checksumCalled := false
	restoreChecksum := swapUpdateFetchReleaseSHA256(func([]githubAsset) (map[string]string, error) {
		checksumCalled = true
		return map[string]string{
			assetName: "abc123",
		}, nil
	})
	defer restoreChecksum()

	info, err := fetchLatestUpdateInfo(updateChannelLatest)
	if err != nil {
		t.Fatalf("fetchLatestUpdateInfo returned error: %v", err)
	}
	if !checksumCalled {
		t.Fatal("expected SHA256SUMS fetch when asset digest is missing")
	}
	if !info.HasUpdate {
		t.Fatalf("expected HasUpdate=true, got %#v", info)
	}
	if info.SHA256 != "abc123" || info.AssetName != assetName {
		t.Fatalf("unexpected update info: %#v", info)
	}
}

func TestCheckForUpdatesLogsFailuresForManualChecks(t *testing.T) {
	app := &App{configDir: t.TempDir()}

	restoreRelease := swapUpdateFetchLatestRelease(func() (*githubRelease, error) {
		return nil, errors.New("request timed out")
	})
	defer restoreRelease()

	logged := 0
	restoreLogger := swapUpdateCheckErrorLogger(func(error) {
		logged++
	})
	defer restoreLogger()

	result := app.CheckForUpdates()
	if result.Success {
		t.Fatalf("expected failure result, got %#v", result)
	}
	if logged != 1 {
		t.Fatalf("expected manual check to log once, got %d", logged)
	}
}

func TestCheckForUpdatesSilentlySkipsFailureLogs(t *testing.T) {
	app := &App{configDir: t.TempDir()}

	restoreRelease := swapUpdateFetchLatestRelease(func() (*githubRelease, error) {
		return nil, errors.New("request timed out")
	})
	defer restoreRelease()

	logged := 0
	restoreLogger := swapUpdateCheckErrorLogger(func(error) {
		logged++
	})
	defer restoreLogger()

	result := app.CheckForUpdatesSilently()
	if result.Success {
		t.Fatalf("expected failure result, got %#v", result)
	}
	if logged != 0 {
		t.Fatalf("expected silent check to skip error logging, got %d", logged)
	}
}

func TestCheckForUpdatesRestoresPersistedGlobalProxyRuntime(t *testing.T) {
	previousProxy := currentGlobalProxyConfig()
	t.Cleanup(func() {
		_, _ = setGlobalProxyConfig(previousProxy.Enabled, previousProxy.Proxy)
	})

	app := NewAppWithSecretStore(newFakeAppSecretStore())
	app.configDir = t.TempDir()

	proxyCalled := false
	proxyServer := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
		proxyCalled = true
		if !r.URL.IsAbs() {
			t.Fatalf("expected update request through HTTP proxy to use absolute URL, got %q", r.URL.String())
		}
		if r.URL.Host != "api.github.invalid" {
			t.Fatalf("expected proxied GitHub API host api.github.invalid, got %q", r.URL.Host)
		}
		w.Header().Set("Content-Type", "application/json")
		if err := json.NewEncoder(w).Encode(githubRelease{
			TagName: updateDevReleaseTag,
			Name:    "Dev Build (dev-proxy123)",
			HTMLURL: "https://github.com/Syngnat/GoNavi/releases/tag/dev-latest",
		}); err != nil {
			t.Fatalf("Encode returned error: %v", err)
		}
	}))
	defer proxyServer.Close()

	host, port := parseTestServerHostPort(t, proxyServer.URL)
	if _, err := app.saveGlobalProxy(connection.SaveGlobalProxyInput{
		Enabled: true,
		Type:    "http",
		Host:    host,
		Port:    port,
	}); err != nil {
		t.Fatalf("saveGlobalProxy returned error: %v", err)
	}
	if _, err := setGlobalProxyConfig(false, connection.ProxyConfig{}); err != nil {
		t.Fatalf("setGlobalProxyConfig reset returned error: %v", err)
	}

	originalVersion := AppVersion
	AppVersion = "dev-proxy123"
	defer func() {
		AppVersion = originalVersion
	}()

	restoreRelease := swapUpdateFetchDevRelease(func() (*githubRelease, error) {
		return fetchReleaseByURL("http://api.github.invalid/repos/Syngnat/GoNavi/releases/tags/dev-latest")
	})
	defer restoreRelease()

	setChannelResult := app.SetUpdateChannel(string(updateChannelDev))
	if !setChannelResult.Success {
		t.Fatalf("SetUpdateChannel returned failure: %#v", setChannelResult)
	}

	result := app.CheckForUpdates()
	if !result.Success {
		t.Fatalf("expected update check through restored proxy to succeed, got %#v", result)
	}
	if !proxyCalled {
		t.Fatal("expected persisted global proxy to receive the update check request")
	}
}

func TestFetchLatestUpdateInfoForDevChannelUsesReleaseBuildVersion(t *testing.T) {
	assetName, err := expectedAssetName(stdRuntime.GOOS, stdRuntime.GOARCH, "dev-a1b2c3d")
	if err != nil {
		t.Fatalf("expectedAssetName returned error: %v", err)
	}

	originalVersion := AppVersion
	AppVersion = "0.6.5"
	defer func() {
		AppVersion = originalVersion
	}()

	restoreRelease := swapUpdateFetchDevRelease(func() (*githubRelease, error) {
		return &githubRelease{
			TagName: "dev-latest",
			Name:    "🧪 Dev Build (dev-a1b2c3d)",
			HTMLURL: "https://github.com/Syngnat/GoNavi/releases/tag/dev-latest",
			Assets: []githubAsset{
				{
					Name:               assetName,
					BrowserDownloadURL: "https://example.com/" + assetName,
					Size:               8192,
				},
			},
		}, nil
	})
	defer restoreRelease()

	checksumCalled := false
	restoreChecksum := swapUpdateFetchReleaseSHA256(func([]githubAsset) (map[string]string, error) {
		checksumCalled = true
		return map[string]string{
			assetName: "def456",
		}, nil
	})
	defer restoreChecksum()

	info, err := fetchLatestUpdateInfo(updateChannelDev)
	if err != nil {
		t.Fatalf("fetchLatestUpdateInfo returned error: %v", err)
	}
	if !checksumCalled {
		t.Fatal("expected dev channel update check to fetch SHA256 when build version differs")
	}
	if !info.HasUpdate {
		t.Fatalf("expected HasUpdate=true, got %#v", info)
	}
	if info.Channel != string(updateChannelDev) {
		t.Fatalf("expected dev channel, got %#v", info)
	}
	if info.LatestVersion != "dev-a1b2c3d" {
		t.Fatalf("expected dev build version from release metadata, got %#v", info)
	}
	if info.AssetName != assetName || info.SHA256 != "def456" {
		t.Fatalf("unexpected dev update info: %#v", info)
	}
}

func TestFetchLatestUpdateInfoForDevChannelSkipsChecksumWhenBuildMatches(t *testing.T) {
	assetName, err := expectedAssetName(stdRuntime.GOOS, stdRuntime.GOARCH, "dev-a1b2c3d")
	if err != nil {
		t.Fatalf("expectedAssetName returned error: %v", err)
	}

	originalVersion := AppVersion
	AppVersion = "dev-a1b2c3d"
	defer func() {
		AppVersion = originalVersion
	}()

	restoreRelease := swapUpdateFetchDevRelease(func() (*githubRelease, error) {
		return &githubRelease{
			TagName: "dev-latest",
			Name:    "🧪 Dev Build (dev-a1b2c3d)",
			HTMLURL: "https://github.com/Syngnat/GoNavi/releases/tag/dev-latest",
			Assets: []githubAsset{
				{
					Name:               assetName,
					BrowserDownloadURL: "https://example.com/" + assetName,
					Size:               2048,
				},
			},
		}, nil
	})
	defer restoreRelease()

	checksumCalled := false
	restoreChecksum := swapUpdateFetchReleaseSHA256(func([]githubAsset) (map[string]string, error) {
		checksumCalled = true
		return nil, errors.New("checksum should not be fetched when dev build is already current")
	})
	defer restoreChecksum()

	info, err := fetchLatestUpdateInfo(updateChannelDev)
	if err != nil {
		t.Fatalf("fetchLatestUpdateInfo returned error: %v", err)
	}
	if checksumCalled {
		t.Fatal("expected dev channel checksum fetch to be skipped when build already matches")
	}
	if info.HasUpdate {
		t.Fatalf("expected HasUpdate=false, got %#v", info)
	}
	if info.Channel != string(updateChannelDev) || info.LatestVersion != "dev-a1b2c3d" {
		t.Fatalf("unexpected dev latest info: %#v", info)
	}
}

func TestSetUpdateChannelPersistsAndClearsCachedUpdateState(t *testing.T) {
	app := NewApp()
	app.configDir = t.TempDir()
	app.updateState.lastCheck = &UpdateInfo{
		HasUpdate:     true,
		Channel:       string(updateChannelLatest),
		LatestVersion: "0.6.5",
	}
	app.updateState.staged = &stagedUpdate{
		Channel:   updateChannelLatest,
		Version:   "0.6.5",
		AssetName: "GoNavi-0.6.5-Windows-Amd64.exe",
	}

	result := app.SetUpdateChannel("dev")
	if !result.Success {
		t.Fatalf("SetUpdateChannel returned failure: %#v", result)
	}

	stored, err := app.loadStoredUpdateChannel()
	if err != nil {
		t.Fatalf("loadStoredUpdateChannel returned error: %v", err)
	}
	if stored != updateChannelDev {
		t.Fatalf("expected stored dev channel, got %q", stored)
	}
	if app.updateState.lastCheck != nil || app.updateState.staged != nil {
		t.Fatalf("expected update cache to be cleared after channel switch, got %#v %#v", app.updateState.lastCheck, app.updateState.staged)
	}
}

func TestResolveReusableStagedUpdateDoesNotReuseDifferentChannelPackage(t *testing.T) {
	tempDir := t.TempDir()
	assetPath := filepath.Join(tempDir, "GoNavi-0.6.5-Windows-Amd64.exe")
	if err := os.WriteFile(assetPath, []byte("12345678"), 0o644); err != nil {
		t.Fatalf("WriteFile returned error: %v", err)
	}

	reused := resolveReusableStagedUpdate(
		UpdateInfo{
			Channel:       string(updateChannelLatest),
			LatestVersion: "0.6.5",
			AssetName:     filepath.Base(assetPath),
			AssetSize:     8,
		},
		&stagedUpdate{
			Channel:   updateChannelDev,
			Version:   "0.6.5",
			AssetName: filepath.Base(assetPath),
			FilePath:  assetPath,
		},
	)
	if reused != nil {
		t.Fatalf("expected staged update from another channel to be ignored, got %#v", reused)
	}
}

func TestResolveReusableStagedUpdateForPlatformSkipsLegacyWindowsExeStagedAsset(t *testing.T) {
	preferredWorkspaceDir := t.TempDir()
	legacyWorkspaceDir := t.TempDir()
	info := UpdateInfo{
		Channel:       string(updateChannelLatest),
		LatestVersion: "0.8.4",
		AssetName:     "GoNavi-0.8.4-Windows-Amd64.exe",
		AssetSize:     8,
	}

	legacyStagedDir := filepath.Join(
		legacyWorkspaceDir,
		buildUpdateStageDirNameForPlatform("windows", info.Channel, info.LatestVersion),
	)
	if err := os.MkdirAll(legacyStagedDir, 0o755); err != nil {
		t.Fatalf("MkdirAll returned error: %v", err)
	}
	legacyAssetPath := filepath.Join(legacyStagedDir, info.AssetName)
	if err := os.WriteFile(legacyAssetPath, []byte("12345678"), 0o644); err != nil {
		t.Fatalf("WriteFile returned error: %v", err)
	}

	reused := resolveReusableStagedUpdateForPlatform("windows", preferredWorkspaceDir, legacyWorkspaceDir, info, nil)
	if reused != nil {
		t.Fatalf("expected legacy staged windows exe to be ignored, got %#v", reused)
	}
}

func TestResolveReusableStagedUpdateForPlatformPrefersWindowsExeInInstallDirectory(t *testing.T) {
	preferredWorkspaceDir := t.TempDir()
	legacyWorkspaceDir := t.TempDir()
	info := UpdateInfo{
		Channel:       string(updateChannelLatest),
		LatestVersion: "0.8.4",
		AssetName:     "GoNavi-0.8.4-Windows-Amd64.exe",
		AssetSize:     8,
	}

	preferredAssetPath := filepath.Join(preferredWorkspaceDir, info.AssetName)
	if err := os.WriteFile(preferredAssetPath, []byte("12345678"), 0o644); err != nil {
		t.Fatalf("WriteFile returned error: %v", err)
	}

	legacyStagedDir := filepath.Join(
		legacyWorkspaceDir,
		buildUpdateStageDirNameForPlatform("windows", info.Channel, info.LatestVersion),
	)
	if err := os.MkdirAll(legacyStagedDir, 0o755); err != nil {
		t.Fatalf("MkdirAll returned error: %v", err)
	}
	legacyAssetPath := filepath.Join(legacyStagedDir, info.AssetName)
	if err := os.WriteFile(legacyAssetPath, []byte("87654321"), 0o644); err != nil {
		t.Fatalf("WriteFile returned error: %v", err)
	}

	reused := resolveReusableStagedUpdateForPlatform("windows", preferredWorkspaceDir, legacyWorkspaceDir, info, nil)
	if reused == nil {
		t.Fatal("expected install-directory windows exe to be reused")
	}
	if reused.FilePath != preferredAssetPath {
		t.Fatalf("expected preferred install-directory asset %q, got %q", preferredAssetPath, reused.FilePath)
	}
}

func TestResolveReusableStagedUpdateForPlatformDoesNotReuseCurrentWindowsExeInsideStagedDir(t *testing.T) {
	preferredWorkspaceDir := t.TempDir()
	legacyWorkspaceDir := t.TempDir()
	info := UpdateInfo{
		Channel:       string(updateChannelLatest),
		LatestVersion: "0.8.4",
		AssetName:     "GoNavi-0.8.4-Windows-Amd64.exe",
		AssetSize:     8,
	}

	legacyStagedDir := filepath.Join(
		legacyWorkspaceDir,
		buildUpdateStageDirNameForPlatform("windows", info.Channel, info.LatestVersion),
	)
	if err := os.MkdirAll(legacyStagedDir, 0o755); err != nil {
		t.Fatalf("MkdirAll returned error: %v", err)
	}
	legacyAssetPath := filepath.Join(legacyStagedDir, info.AssetName)
	if err := os.WriteFile(legacyAssetPath, []byte("12345678"), 0o644); err != nil {
		t.Fatalf("WriteFile returned error: %v", err)
	}

	reused := resolveReusableStagedUpdateForPlatform("windows", preferredWorkspaceDir, legacyWorkspaceDir, info, &stagedUpdate{
		Channel:   updateChannelLatest,
		Version:   info.LatestVersion,
		AssetName: info.AssetName,
		FilePath:  legacyAssetPath,
		StagedDir: legacyStagedDir,
	})
	if reused != nil {
		t.Fatalf("expected current staged windows exe inside staging dir to be ignored, got %#v", reused)
	}
}

func TestDownloadUpdateUsesCurrentLanguageForBackendMessage(t *testing.T) {
	app := NewApp()
	app.SetLanguage("en-US")

	result := app.DownloadUpdate()
	if result.Success {
		t.Fatalf("expected failure result, got %#v", result)
	}
	if result.Message != "Check for updates first" {
		t.Fatalf("expected localized message, got %q", result.Message)
	}
}

func TestEnsureWindowsUpdateTargetWritableAcceptsWritableDirectory(t *testing.T) {
	if stdRuntime.GOOS != "windows" {
		t.Skip("windows-only update target validation")
	}

	target := filepath.Join(t.TempDir(), "GoNavi.exe")
	if err := ensureWindowsUpdateTargetWritable(target); err != nil {
		t.Fatalf("ensureWindowsUpdateTargetWritable returned error: %v", err)
	}
}

func TestInstallUpdateAndRestartFailsBeforeLaunchWhenWindowsTargetDirIsNotWritable(t *testing.T) {
	if stdRuntime.GOOS != "windows" {
		t.Skip("windows-only update target validation")
	}

	stagedDir := t.TempDir()
	assetPath := filepath.Join(stagedDir, "GoNavi-0.8.2-Windows-Amd64.exe")
	if err := os.WriteFile(assetPath, []byte("12345678"), 0o644); err != nil {
		t.Fatalf("WriteFile returned error: %v", err)
	}

	app := NewApp()
	app.updateState.staged = &stagedUpdate{
		Channel:   updateChannelLatest,
		Version:   "0.8.2",
		AssetName: filepath.Base(assetPath),
		FilePath:  assetPath,
		StagedDir: stagedDir,
	}

	originalResolveInstallTarget := updateResolveInstallTarget
	originalLaunchInstallScript := updateLaunchInstallScript
	t.Cleanup(func() {
		updateResolveInstallTarget = originalResolveInstallTarget
		updateLaunchInstallScript = originalLaunchInstallScript
	})

	updateResolveInstallTarget = func() string {
		return filepath.Join(stagedDir, "missing", "GoNavi.exe")
	}

	launched := false
	updateLaunchInstallScript = func(*stagedUpdate) error {
		launched = true
		return nil
	}

	result := app.InstallUpdateAndRestart()
	if result.Success {
		t.Fatalf("expected InstallUpdateAndRestart to fail, got %#v", result)
	}
	if launched {
		t.Fatal("expected launch script to be skipped when install target is not writable")
	}
	if !strings.Contains(result.Message, "not writable") {
		t.Fatalf("expected install target write failure in message, got %q", result.Message)
	}
}

func TestResolveUpdateWorkspaceDirPrefersCurrentInstallDirectory(t *testing.T) {
	if stdRuntime.GOOS == "darwin" {
		t.Skip("macOS keeps update downloads on Desktop")
	}

	targetDir := t.TempDir()
	originalResolveInstallTarget := updateResolveInstallTarget
	t.Cleanup(func() {
		updateResolveInstallTarget = originalResolveInstallTarget
	})

	updateResolveInstallTarget = func() string {
		return filepath.Join(targetDir, "GoNavi.exe")
	}

	got := resolveUpdateWorkspaceDir("0.8.2")
	if got != targetDir {
		t.Fatalf("expected workspace dir %q, got %q", targetDir, got)
	}
}

func TestShouldStoreUpdateAssetInWorkspaceRoot(t *testing.T) {
	cases := []struct {
		goos string
		want bool
	}{
		{goos: "windows", want: true},
		{goos: "darwin", want: true},
		{goos: "linux", want: true},
		{goos: "freebsd", want: false},
	}

	for _, tc := range cases {
		if got := shouldStoreUpdateAssetInWorkspaceRoot(tc.goos); got != tc.want {
			t.Fatalf("shouldStoreUpdateAssetInWorkspaceRoot(%q) = %v, want %v", tc.goos, got, tc.want)
		}
	}
}

func TestResolveUpdateStagedDirForPlatformUsesLegacyWorkspaceOnWindows(t *testing.T) {
	workspaceDir := filepath.Join("C:\\GoNavi", "app")
	got := resolveUpdateStagedDirForPlatform("windows", workspaceDir, "dev", "dev-93dc696")
	want := filepath.Join(resolveLegacyUpdateWorkspaceDir(), buildUpdateStageDirNameForPlatform("windows", "dev", "dev-93dc696"))
	if got != want {
		t.Fatalf("expected windows staged dir %q, got %q", want, got)
	}
}

func TestShouldWindowsUpdateLaunchDownloadedAssetDirectly(t *testing.T) {
	cases := []struct {
		assetPath string
		want      bool
	}{
		{assetPath: `C:\GoNavi\GoNavi-dev-93dc696-Windows-Amd64.exe`, want: true},
		{assetPath: `C:\GoNavi\GoNavi-0.8.2-Windows-Amd64.zip`, want: false},
		{assetPath: "", want: false},
	}

	for _, tc := range cases {
		if got := shouldWindowsUpdateLaunchDownloadedAssetDirectly(tc.assetPath); got != tc.want {
			t.Fatalf("shouldWindowsUpdateLaunchDownloadedAssetDirectly(%q) = %v, want %v", tc.assetPath, got, tc.want)
		}
	}
}

func TestBuildWindowsScriptReplacesTargetWithDownloadedExe(t *testing.T) {
	script := buildWindowsScript(
		`C:\GoNavi\GoNavi-dev-93dc696-Windows-Amd64.exe`,
		`C:\GoNavi\GoNavi-dev-00d70d2-Windows-Amd64.exe`,
		`C:\Users\tester\AppData\Local\Temp\gonavi-updates\.gonavi-update-windows-dev-dev-93dc696`,
		`C:\Users\tester\AppData\Local\Temp\gonavi-updates\gonavi-update-windows.log`,
		12345,
	)

	mustContain := []string{
		`:replace_binary`,
		`move /Y "%TARGET%" "%TARGET_OLD%"`,
		`copy /Y "%SOURCE_EXE%" "%TARGET%"`,
		`if exist "%SOURCE%" del /F /Q "%SOURCE%"`,
		`start "" /D "%TARGET_DIR%" "%TARGET%"`,
	}
	for _, want := range mustContain {
		if !strings.Contains(script, want) {
			t.Fatalf("windows update script missing required token: %s\nscript:\n%s", want, script)
		}
	}
	if strings.Contains(script, "launch_downloaded_exe") {
		t.Fatalf("windows update script should not launch downloaded exe side-by-side\nscript:\n%s", script)
	}
}

func TestExpectedAssetNameForExecutableUsesLinuxWebKit41Suffix(t *testing.T) {
	assetName, err := expectedAssetNameForExecutable(
		"linux",
		"amd64",
		"v0.6.5",
		"/opt/GoNavi/gonavi-build-linux-amd64-webkit41",
	)
	if err != nil {
		t.Fatalf("expectedAssetNameForExecutable returned error: %v", err)
	}

	want := "GoNavi-0.6.5-Linux-Amd64-WebKit41.tar.gz"
	if assetName != want {
		t.Fatalf("unexpected linux webkit41 asset name: got %q want %q", assetName, want)
	}
}

func TestExpectedAssetNameForExecutableSupportsLinuxArm64(t *testing.T) {
	assetName, err := expectedAssetNameForExecutable(
		"linux",
		"arm64",
		"v0.6.5",
		"/opt/GoNavi/gonavi-build-linux-arm64",
	)
	if err != nil {
		t.Fatalf("expectedAssetNameForExecutable returned error: %v", err)
	}

	want := "GoNavi-0.6.5-Linux-Arm64.tar.gz"
	if assetName != want {
		t.Fatalf("unexpected linux arm64 asset name: got %q want %q", assetName, want)
	}
}

func TestBuildLinuxScriptPrefersTargetExecutableBasename(t *testing.T) {
	script := buildLinuxScript(
		"/tmp/GoNavi-0.6.5-Linux-Amd64-WebKit41.tar.gz",
		"/opt/GoNavi/gonavi-build-linux-amd64-webkit41",
		"/tmp/.gonavi-update-linux-0.6.5",
		12345,
	)

	mustContain := []string{
		`TARGET_NAME="$(basename "$TARGET")"`,
		`NEWBIN="$TMPDIR/$TARGET_NAME"`,
		`NEWBIN=$(find "$TMPDIR" -type f -name "$TARGET_NAME" | head -n 1)`,
		`NEWBIN=$(find "$TMPDIR" -type f -name "GoNavi" | head -n 1)`,
	}
	for _, want := range mustContain {
		if !strings.Contains(script, want) {
			t.Fatalf("linux update script missing required token: %s\nscript:\n%s", want, script)
		}
	}
}