Initial commit

Source.cpp

@@ -0,0 +1,95 @@
+#include <json.hpp>
+#include <httplib.h>
+#include <discord-rpc.h>
+
+#include <cstring>
+#include <iostream>
+#include <string>
+#include <thread>
+
+using json = nlohmann::json;
+
+struct config {
+	std::string lfm_api_key;
+	std::string dsc_app_id;
+	std::string lfm_user;
+};
+
+struct current_status {
+	bool playing;
+
+	std::string artist;
+	std::string track;
+};
+
+// https://stackoverflow.com/a/2072890/1243281
+inline bool ends_with(std::string const & value, std::string const & ending) {
+	if (ending.size() > value.size()) return false;
+	return std::equal(ending.rbegin(), ending.rend(), value.rbegin());
+}
+
+void init(config cfg) {
+	DiscordEventHandlers handlers;
+	memset(&handlers, 0, sizeof(handlers));
+	Discord_Initialize(cfg.dsc_app_id.c_str(), &handlers, 1, NULL);
+}
+
+void update(current_status status) {
+	DiscordRichPresence discordPresence;
+	memset(&discordPresence, 0, sizeof(discordPresence));
+
+	discordPresence.largeImageKey = "default";
+
+	if (status.playing) {
+		discordPresence.state = status.artist.c_str();
+		discordPresence.details = status.track.c_str();
+	}
+	else {
+		discordPresence.state = "Idle";
+	}
+
+	Discord_UpdatePresence(&discordPresence);
+}
+
+current_status get_lfm_data(config cfg) {
+	std::string url = "/2.0/?method=user.getrecenttracks&user=" + cfg.lfm_user + "&api_key=" + cfg.lfm_api_key + "&format=json";
+
+	httplib::Client cli("ws.audioscrobbler.com", 80);
+	auto res = cli.get(url.c_str());
+	if (res && res->status == 200) {
+		json j = json::parse(res->body);
+
+		json t = j["recenttracks"]["track"][0];
+		if (t.find("@attr") != t.end() && t["@attr"].find("nowplaying") != t["@attr"].end() && t["@attr"]["nowplaying"] == "true") {
+			return { true, t["artist"]["#text"], t["name"] };
+		}
+	}
+
+	return { false, "", "" };
+}
+
+config load_config() {
+	std::ifstream t("config.json");
+	std::stringstream buffer;
+	buffer << t.rdbuf();
+	
+	json cfg = json::parse(buffer);
+
+	return { cfg["lfm_api_key"], cfg["dsc_app_id"], cfg["lfm_user"] };
+}
+
+int main(int argc, char* argv[]) {
+	config cfg = load_config();
+
+	init(cfg);
+
+	while (true) {
+		current_status c = get_lfm_data(cfg);
+		update(c);
+
+		std::this_thread::sleep_for(std::chrono::seconds(30));
+	}
+
+	Discord_Shutdown();
+	return 0;
+}

config.json

@@ -0,0 +1,5 @@
+{
+    "lfm_api_key": "",
+    "dsc_app_id": "388745305543147540",
+	"lfm_user": ""
+}