Adjust for restructured `verified-mods.json` (#748)

Updates the launcher code to deal with adjusted verified mods JSON structure from the default manifest source
The idea here is to allow installing mods from other sources than Thunderstore.

2 files changed, 39 insertions, 22 deletions

diff --git a/primedev/mods/autodownload/moddownloader.cpp b/primedev/mods/autodownload/moddownloader.cpp
index 8e533dec..c20a3adb 100644
--- a/primedev/mods/autodownload/moddownloader.cpp
+++ b/primedev/mods/autodownload/moddownloader.cpp
@@ -103,23 +103,23 @@ void ModDownloader::FetchModsListFromAPI()
 			for (auto i = verifiedModsJson.MemberBegin(); i != verifiedModsJson.MemberEnd(); ++i)
 			{
 				// Format testing
-				if (!i->value.HasMember("DependencyPrefix") || !i->value.HasMember("Versions"))
+				if (!i->value.HasMember("Repository") || !i->value.HasMember("Versions"))
 				{
 					spdlog::warn("Verified mods manifesto format is unrecognized, skipping loading.");
 					return;
 				}
 
 				std::string name = i->name.GetString();
-				std::string dependency = i->value["DependencyPrefix"].GetString();
-
 				std::unordered_map<std::string, VerifiedModVersion> modVersions;
+
 				rapidjson::Value& versions = i->value["Versions"];
 				assert(versions.IsArray());
 				for (auto& attribute : versions.GetArray())
 				{
 					assert(attribute.IsObject());
 					// Format testing
-					if (!attribute.HasMember("Version") || !attribute.HasMember("Checksum"))
+					if (!attribute.HasMember("Version") || !attribute.HasMember("Checksum") || !attribute.HasMember("DownloadLink") ||
+						!attribute.HasMember("Platform"))
 					{
 						spdlog::warn("Verified mods manifesto format is unrecognized, skipping loading.");
 						return;
@@ -127,10 +127,14 @@ void ModDownloader::FetchModsListFromAPI()
 
 					std::string version = attribute["Version"].GetString();
 					std::string checksum = attribute["Checksum"].GetString();
-					modVersions.insert({version, {.checksum = checksum}});
+					std::string downloadLink = attribute["DownloadLink"].GetString();
+					std::string platformValue = attribute["Platform"].GetString();
+					VerifiedModPlatform platform =
+						platformValue.compare("thunderstore") == 0 ? VerifiedModPlatform::Thunderstore : VerifiedModPlatform::Unknown;
+					modVersions.insert({version, {.checksum = checksum, .downloadLink = downloadLink, .platform = platform}});
 				}
 
-				VerifiedModDetails modConfig = {.dependencyPrefix = dependency, .versions = modVersions};
+				VerifiedModDetails modConfig = {.versions = modVersions};
 				verifiedMods.insert({name, modConfig});
 				spdlog::info("==> Loaded configuration for mod \"" + name + "\"");
 			}
@@ -164,13 +168,10 @@ int ModDownloader::ModFetchingProgressCallback(
 	return 0;
 }
 
-std::optional<fs::path> ModDownloader::FetchModFromDistantStore(std::string_view modName, std::string_view modVersion)
+std::optional<fs::path> ModDownloader::FetchModFromDistantStore(std::string_view modName, VerifiedModVersion version)
 {
-	// Retrieve mod prefix from local mods list, or use mod name as mod prefix if bypass flag is set
-	std::string modPrefix = strstr(GetCommandLineA(), VERIFICATION_FLAG) ? modName.data() : verifiedMods[modName.data()].dependencyPrefix;
-	// Build archive distant URI
-	std::string archiveName = std::format("{}-{}.zip", modPrefix, modVersion.data());
-	std::string url = STORE_URL + archiveName;
+	std::string url = version.downloadLink;
+	std::string archiveName = fs::path(url).filename().generic_string();
 	spdlog::info(std::format("Fetching mod archive from {}", url));
 
 	// Download destination
@@ -390,7 +391,7 @@ int GetModArchiveSize(unzFile file, unz_global_info64 info)
 	return totalSize;
 }
 
-void ModDownloader::ExtractMod(fs::path modPath)
+void ModDownloader::ExtractMod(fs::path modPath, VerifiedModPlatform platform)
 {
 	unzFile file;
 	std::string name;
@@ -428,6 +429,14 @@ void ModDownloader::ExtractMod(fs::path modPath)
 	modState.total = GetModArchiveSize(file, gi);
 	modState.progress = 0;
 
+	// Right now, we only know how to extract Thunderstore mods
+	if (platform != VerifiedModPlatform::Thunderstore)
+	{
+		spdlog::error("Failed extracting mod from unknown platform (value: {}).", platform);
+		modState.state = UNKNOWN_PLATFORM;
+		return;
+	}
+
 	// Mod directory name (removing the ".zip" fom the archive name)
 	name = modPath.filename().string();
 	name = name.substr(0, name.length() - 4);
@@ -598,8 +607,9 @@ void ModDownloader::DownloadMod(std::string modName, std::string modVersion)
 				});
 
 			// Download mod archive
-			std::string expectedHash = verifiedMods[modName].versions[modVersion].checksum;
-			std::optional<fs::path> fetchingResult = FetchModFromDistantStore(std::string_view(modName), std::string_view(modVersion));
+			VerifiedModVersion fullVersion = verifiedMods[modName].versions[modVersion];
+			std::string expectedHash = fullVersion.checksum;
+			std::optional<fs::path> fetchingResult = FetchModFromDistantStore(std::string_view(modName), fullVersion);
 			if (!fetchingResult.has_value())
 			{
 				spdlog::error("Something went wrong while fetching archive, aborting.");
@@ -615,7 +625,7 @@ void ModDownloader::DownloadMod(std::string modName, std::string modVersion)
 			}
 
 			// Extract downloaded mod archive
-			ExtractMod(archiveLocation);
+			ExtractMod(archiveLocation, fullVersion.platform);
 		});
 
 	requestThread.detach();
diff --git a/primedev/mods/autodownload/moddownloader.h b/primedev/mods/autodownload/moddownloader.h
index 98fc27ae..c7a88c19 100644
--- a/primedev/mods/autodownload/moddownloader.h
+++ b/primedev/mods/autodownload/moddownloader.h
@@ -5,17 +5,22 @@ class ModDownloader
 private:
 	const char* VERIFICATION_FLAG = "-disablemodverification";
 	const char* CUSTOM_MODS_URL_FLAG = "-customverifiedurl=";
-	const char* STORE_URL = "https://gcdn.thunderstore.io/live/repository/packages/";
 	const char* DEFAULT_MODS_LIST_URL = "https://raw.githubusercontent.com/R2Northstar/VerifiedMods/main/verified-mods.json";
 	char* modsListUrl;
 
+	enum class VerifiedModPlatform
+	{
+		Unknown,
+		Thunderstore
+	};
 	struct VerifiedModVersion
 	{
 		std::string checksum;
+		std::string downloadLink;
+		VerifiedModPlatform platform;
 	};
 	struct VerifiedModDetails
 	{
-		std::string dependencyPrefix;
 		std::unordered_map<std::string, VerifiedModVersion> versions = {};
 	};
 	std::unordered_map<std::string, VerifiedModDetails> verifiedMods = {};
@@ -45,7 +50,7 @@ private:
 	 * @param modVersion version of the mod to be downloaded
 	 * @returns location of the downloaded archive
 	 */
-	std::optional<fs::path> FetchModFromDistantStore(std::string_view modName, std::string_view modVersion);
+	std::optional<fs::path> FetchModFromDistantStore(std::string_view modName, VerifiedModVersion modVersion);
 
 	/**
 	 * Tells if a mod archive has not been corrupted.
@@ -65,12 +70,13 @@ private:
 	 * Extracts a mod archive to the game folder.
 	 *
 	 * This extracts a downloaded mod archive from its original location to the
-	 * current game profile, in the remote mods folder.
+	 * current game profile; the install folder is defined by the platform parameter.
 	 *
 	 * @param modPath location of the downloaded archive
+	 * @param platform origin of the downloaded archive
 	 * @returns nothing
 	 */
-	void ExtractMod(fs::path modPath);
+	void ExtractMod(fs::path modPath, VerifiedModPlatform platform);
 
 public:
 	ModDownloader();
@@ -131,7 +137,8 @@ public:
 		MOD_FETCHING_FAILED,
 		MOD_CORRUPTED, // Downloaded archive checksum does not match verified hash
 		NO_DISK_SPACE_AVAILABLE,
-		NOT_FOUND // Mod is not currently being auto-downloaded
+		NOT_FOUND, // Mod is not currently being auto-downloaded
+		UNKNOWN_PLATFORM
 	};
 
 	struct MOD_STATE