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CryotechnicCryotechnic
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feat(config): Sync launcher config files after install and patch
After every SaveConfig() call, update launcherDownloadConfig.json so Kuro's official launcher always sees the correct installed version. Fields that belong to Kuro (appId, reUseVersion, state) are preserved from the existing file; only version is overwritten and isPreDownload is cleared. After a successful install or patch, write LocalGameResources.json from the resource index that was used for the operation. This mirrors the manifest Kuro's launcher maintains so both launchers stay consistent. Supporting model changes: - WuwaApiResponseResourceEntry: add optional fromFolder property, which appears in LocalGameResources.json entries. - WuwaApiResponseContext: register WuwaApiResponseResourceIndex for source-generated JSON serialisation.
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5 files changed

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‎Hi3Helper.Plugin.Wuwa/Management/Api/WuwaApiResponse.cs‎

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@@ -9,4 +9,5 @@ namespace Hi3Helper.Plugin.Wuwa.Management.Api;
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[JsonSerializable(typeof(WuwaApiResponseGameConfig))]
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[JsonSerializable(typeof(WuwaApiResponsePatchIndex))]
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[JsonSerializable(typeof(WuwaLauncherDownloadConfig))]
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[JsonSerializable(typeof(WuwaApiResponseResourceIndex))]
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public partial class WuwaApiResponseContext : JsonSerializerContext;

‎Hi3Helper.Plugin.Wuwa/Management/Api/WuwaApiResponseResourceIndex.cs‎

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@@ -18,6 +18,9 @@ public class WuwaApiResponseResourceEntry
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[JsonPropertyName("md5")]
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public string? Md5 { get; set; }
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[JsonPropertyName("fromFolder")]
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public string? FromFolder { get; set; }
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[JsonPropertyName("size")]
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[JsonNumberHandling(JsonNumberHandling.AllowReadingFromString)]
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public ulong Size { get; set; }

‎Hi3Helper.Plugin.Wuwa/Management/WuwaGameInstaller.Install.cs‎

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@@ -600,6 +600,17 @@ void DownloadBytesCallback(long delta)
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{
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SharedStatic.InstanceLogger.LogWarning("[WuwaGameInstaller::StartInstallCoreAsync] Failed to write app-game-config.json: {Err}", ex.Message);
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}
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// Write LocalGameResources.json so Kuro's launcher recognises the installed files
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try
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{
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if (_owner.GameManager is WuwaGameManager gmRes)
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gmRes.TryWriteLocalGameResources(installPath, index);
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}
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catch (Exception ex)
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{
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SharedStatic.InstanceLogger.LogWarning("[WuwaGameInstaller::StartInstallCoreAsync] Failed to write LocalGameResources.json: {Err}", ex.Message);
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}
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}
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catch (Exception ex)
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{

‎Hi3Helper.Plugin.Wuwa/Management/WuwaGameInstaller.Patch.cs‎

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Original file line numberDiff line numberDiff line change
@@ -1611,6 +1611,19 @@ await _owner.TryDownloadWholeFileWithFallbacksAsync(
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manager.SaveConfig();
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// Write LocalGameResources.json so Kuro's launcher recognises the updated files
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try
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{
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var resourceIndex = await _owner.GetCachedIndexAsync(false, token).ConfigureAwait(false);
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if (resourceIndex != null)
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manager.TryWriteLocalGameResources(installPath, resourceIndex);
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}
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catch (Exception ex)
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{
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SharedStatic.InstanceLogger.LogWarning(
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"[Patch::RunAsync] Failed to write LocalGameResources.json: {Err}", ex.Message);
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}
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currentProgressState = InstallProgressState.Completed;
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ReportProgress();
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SharedStatic.InstanceLogger.LogInformation(

‎Hi3Helper.Plugin.Wuwa/Management/WuwaGameManager.cs‎

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Original file line numberDiff line numberDiff line change
@@ -741,6 +741,9 @@ public override void SaveConfig()
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SharedStatic.InstanceLogger.LogWarning(
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"[WuwaGameManager::SaveConfig] Failed to write app-game-config.json: {Exception}", ex);
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}
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// Keep launcherDownloadConfig.json in sync with the version we just persisted.
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TryUpdateLauncherDownloadConfig(CurrentGameInstallPath, CurrentGameVersion.ToString());
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}
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internal string GetInstallType()
@@ -758,6 +761,102 @@ internal string GetInstallType()
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return "unknown";
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}
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/// <summary>
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/// Writes (or updates) <c>launcherDownloadConfig.json</c> in the game install directory
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/// with the supplied <paramref name="version"/>. If the file already exists its other
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/// fields (e.g. <c>appId</c>) are preserved; only <c>version</c> is changed.
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/// </summary>
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internal void TryUpdateLauncherDownloadConfig(string installPath, string version)
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{
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const string fileName = "launcherDownloadConfig.json";
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string configPath = Path.Combine(installPath, fileName);
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// Start from any existing data so we preserve fields like appId.
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var cfg = new WuwaLauncherDownloadConfig
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{
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Version = version,
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ReUseVersion = string.Empty,
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State = string.Empty,
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IsPreDownload = false,
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};
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if (File.Exists(configPath))
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{
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try
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{
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using var readFs = File.OpenRead(configPath);
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var existing = JsonSerializer.Deserialize(readFs,
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WuwaApiResponseContext.Default.WuwaLauncherDownloadConfig);
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if (existing != null)
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{
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// Carry over fields we don't want to overwrite.
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cfg.AppId = existing.AppId;
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cfg.ReUseVersion = existing.ReUseVersion ?? string.Empty;
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cfg.State = existing.State ?? string.Empty;
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cfg.IsPreDownload = false; // always clear the pre-download flag after a full update
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}
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}
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catch (Exception ex)
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{
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SharedStatic.InstanceLogger.LogWarning(
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"[WuwaGameManager::TryUpdateLauncherDownloadConfig] Could not read existing {File}: {Err}",
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fileName, ex.Message);
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}
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}
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try
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{
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string tempPath = configPath + ".tmp";
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using (var writeFs = new FileStream(tempPath, FileMode.Create, FileAccess.Write, FileShare.None))
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{
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JsonSerializer.Serialize(writeFs, cfg,
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WuwaApiResponseContext.Default.WuwaLauncherDownloadConfig);
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}
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File.Move(tempPath, configPath, overwrite: true);
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SharedStatic.InstanceLogger.LogInformation(
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"[WuwaGameManager::TryUpdateLauncherDownloadConfig] Updated {File} → version={Version}",
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fileName, version);
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}
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catch (Exception ex)
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{
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SharedStatic.InstanceLogger.LogWarning(
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"[WuwaGameManager::TryUpdateLauncherDownloadConfig] Failed to write {File}: {Err}",
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fileName, ex.Message);
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}
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}
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/// <summary>
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/// Writes <c>LocalGameResources.json</c> to the game install directory using the
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/// supplied resource index. This mirrors the file that Kuro's official launcher
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/// maintains so the game and launcher remain in sync after installs/updates done
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/// through Collapse Launcher.
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/// </summary>
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internal void TryWriteLocalGameResources(string installPath, WuwaApiResponseResourceIndex index)
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{
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const string fileName = "LocalGameResources.json";
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string configPath = Path.Combine(installPath, fileName);
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try
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{
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string tempPath = configPath + ".tmp";
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using (var writeFs = new FileStream(tempPath, FileMode.Create, FileAccess.Write, FileShare.None))
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{
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JsonSerializer.Serialize(writeFs, index,
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WuwaApiResponseContext.Default.WuwaApiResponseResourceIndex);
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}
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File.Move(tempPath, configPath, overwrite: true);
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SharedStatic.InstanceLogger.LogInformation(
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"[WuwaGameManager::TryWriteLocalGameResources] Wrote {File} ({Count} entries)",
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fileName, index.Resource.Length);
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}
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catch (Exception ex)
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{
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SharedStatic.InstanceLogger.LogWarning(
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"[WuwaGameManager::TryWriteLocalGameResources] Failed to write {File}: {Err}",
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fileName, ex.Message);
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}
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}
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/// <summary>
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/// Finds a patch config entry that patches FROM the given version to the current API game version.
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/// </summary>

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