Meta parsing stuff

.clang-format

@@ -0,0 +1,8 @@
+---
+IndentWidth: 4
+TabWidth: 4
+UseTab: Always
+ContinuationIndentWidth: 4
+---
+Language: Cpp
+AccessModifierOffset: -4

.gitmodules

@@ -1,3 +1,6 @@
 [submodule "lib/wx"]
 	path = lib/wx
 	url = https://github.com/wxWidgets/wxWidgets.git
+[submodule "lib/json"]
+	path = lib/json
+	url = https://github.com/nlohmann/json.git

CMakeLists.txt

@@ -2,7 +2,4 @@ cmake_minimum_required(VERSION 3.25)
 project(leapfrog)
 
 add_subdirectory(lib)
-
-add_executable(leapfrog main.cpp)
-target_link_libraries(leapfrog PRIVATE wx::base wx::core wx::net)
-include_directories(lib/wx/include)
+add_subdirectory(installer)

installer/CMakeLists.txt

@@ -0,0 +1,7 @@
+set(CMAKE_INCLUDE_CURRENT_DIR ON)
+
+configure_file(info.hpp.in info.hpp)
+add_executable(installer main.cpp ui.cpp ui.hpp meta.cpp meta.hpp info.hpp)
+target_link_libraries(installer PRIVATE wx::base wx::core wx::net)
+include_directories(lib/wx/include)
+include_directories(lib/json/include)

installer/info.hpp.in

@@ -0,0 +1,7 @@
+#pragma once
+
+#include <wx/string.h>
+
+namespace info {
+const wxString USER_AGENT("Leapfrog Installer/@leapfrog_VERSION@");
+}

installer/main.cpp

@@ -0,0 +1,23 @@
+#include "meta.hpp"
+#include "ui.hpp"
+#include <iostream>
+#include <wx/app.h>
+
+class App final : public wxApp {
+public:
+	bool OnInit() override {
+		if (!wxApp::OnInit())
+			return false;
+
+		wxLog::SetActiveTarget(new wxLogStream(&std::cout));
+
+		get_loader_versions(this, [](auto) {});
+
+		auto *window = new InstallerWindow;
+		window->Show();
+
+		return true;
+	}
+};
+
+wxIMPLEMENT_APP(App);

installer/meta.cpp

@@ -0,0 +1,73 @@
+#include "meta.hpp"
+#include "info.hpp"
+#include <nlohmann/json.hpp>
+#include <wx/log.h>
+#include <wx/webrequest.h>
+
+static wxString meta_url(const wxString &url) {
+	return "https://meta.frogmc.dev/v1/" + url;
+}
+
+static LoaderVersion make_loader_version(const nlohmann::json &value) {
+	wxDateTime release_date(static_cast<time_t>(0));
+	release_date.ParseISOCombined(
+		wxString::FromUTF8(value.value("dateTime", std::string())));
+
+	return {wxString::FromUTF8(value.value("version", std::string())),
+			release_date,
+			wxString::FromUTF8(value.value("downloadUrl", std::string()))};
+}
+
+void get_loader_versions(
+	wxEvtHandler *handler,
+	const std::function<void(std::optional<std::vector<LoaderVersion>>)>
+		&callback) {
+	wxWebRequest request = wxWebSession::GetDefault().CreateRequest(
+		handler, meta_url("loader/versions"));
+
+	if (!request.IsOk()) {
+		wxLogError("Invalid request object");
+		callback({});
+		return;
+	}
+
+	request.SetHeader("User-Agent", info::USER_AGENT);
+	handler->Bind(wxEVT_WEBREQUEST_STATE, [callback](wxWebRequestEvent &event) {
+		if (event.GetState() == wxWebRequest::State_Completed) {
+			const nlohmann::json response = nlohmann::json::parse(
+				event.GetResponse().AsString().utf8_string());
+
+			if (!response.is_array()) {
+				wxLogError("Response is not an array");
+				callback({});
+				return;
+			}
+
+			std::vector<LoaderVersion> result;
+
+			size_t i = 0;
+
+			for (const auto &value : response) {
+				result.push_back(make_loader_version(value));
+
+				if (!result.back().is_valid()) {
+					wxLogError("Invalid loader version object: %s",
+							   value.dump(4));
+					callback({});
+					return;
+				}
+
+				++i;
+			}
+
+			callback({std::move(result)});
+			return;
+		} else if (event.GetState() == wxWebRequest::State_Failed) {
+			wxLogError("Request failed: %s", event.GetErrorDescription());
+			callback({});
+			return;
+		}
+	});
+
+	request.Start();
+}

installer/meta.hpp

@@ -0,0 +1,20 @@
+#pragma once
+
+#include <optional>
+#include <wx/datetime.h>
+#include <wx/event.h>
+
+struct LoaderVersion {
+	wxString version;
+	wxDateTime release_date;
+	wxString download_url;
+
+	bool is_valid() const {
+		return !version.IsEmpty() && release_date.IsValid() &&
+			   !download_url.IsEmpty();
+	}
+};
+
+void get_loader_versions(
+	wxEvtHandler *handler,
+	const std::function<void(std::optional<std::vector<LoaderVersion>>)> &callback);

installer/ui.cpp

@@ -0,0 +1,3 @@
+#include "ui.hpp"
+
+InstallerWindow::InstallerWindow() {}

installer/ui.hpp

@@ -0,0 +1,8 @@
+#pragma once
+
+#include "wx/window.h"
+
+class InstallerWindow final : public wxWindow {
+public:
+	explicit InstallerWindow();
+};

lib/json

@@ -0,0 +1 @@
+Subproject commit 8c391e04fe4195d8be862c97f38cfe10e2a3472e

main.cpp

@@ -1,17 +0,0 @@
-#include <iostream>
-#include <wx/wx.h>
-
-class App final : public wxApp {
-
-public:
-    bool OnInit() override {
-        if (!wxApp::OnInit())
-            return false;
-
-        wxMessageBox("gaming");
-        return true;
-    }
-
-};
-
-wxIMPLEMENT_APP(App);