Add BetterTTV emotes

src/client/java/net/vinrobot/mcemote/client/providers/BTTVEmote.java

@@ -0,0 +1,62 @@
+package net.vinrobot.mcemote.client.providers;
+
+import net.minecraft.client.texture.NativeImage;
+import net.vinrobot.mcemote.api.bttv.Emote;
+import net.vinrobot.mcemote.client.helpers.NativeImageHelper;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+import javax.imageio.ImageIO;
+import java.awt.image.BufferedImage;
+import java.io.IOException;
+import java.net.URL;
+import java.util.Objects;
+
+public class BTTVEmote implements net.vinrobot.mcemote.client.font.Emote {
+	private static final Logger LOGGER = LoggerFactory.getLogger(BTTVEmote.class);
+	private static final int DEFAULT_SIZE = 28;
+
+	private final Emote emote;
+
+	public BTTVEmote(Emote emote) {
+		this.emote = emote;
+	}
+
+	@Override
+	public String getName() {
+		return this.emote.code();
+	}
+
+	@Override
+	public int getWidth() {
+		final int width = this.emote.width();
+		return width > 0 ? width : DEFAULT_SIZE;
+	}
+
+	@Override
+	public int getHeight() {
+		final int height = this.emote.height();
+		return height > 0 ? height : DEFAULT_SIZE;
+	}
+
+	@Override
+	public Frame[] loadFrames() throws IOException {
+		if (this.emote.animated()) {
+			LOGGER.error("Animated BTTV emotes are not supported yet.");
+		}
+
+		final URL url = new URL("https://cdn.betterttv.net/emote/" + this.emote.id() + "/1x");
+		final BufferedImage image = Objects.requireNonNull(ImageIO.read(url));
+
+		final int expectedWidth = getWidth(), expectedHeight = getHeight();
+		final int actualWidth = image.getWidth(), actualHeight = image.getHeight();
+		if (expectedWidth != actualWidth || expectedHeight != actualHeight) {
+			final String expectedSize = expectedWidth + "x" + expectedHeight;
+			final String actualSize = actualWidth + "x" + actualHeight;
+			LOGGER.error("BTTV emote " + getName() + " has unexpected size " + actualSize + " (expected " + expectedSize + ").");
+		}
+
+		final NativeImage nativeImage = NativeImageHelper.fromBufferedImage(image);
+		return new Frame[]{new Frame(nativeImage)};
+	}
+}

src/client/java/net/vinrobot/mcemote/client/providers/BTTVGlobalEmoteProvider.java

@@ -0,0 +1,25 @@
+package net.vinrobot.mcemote.client.providers;
+
+import net.vinrobot.mcemote.api.bttv.BetterTTVService;
+import net.vinrobot.mcemote.api.bttv.Emote;
+import net.vinrobot.mcemote.config.Configuration;
+
+import java.util.Arrays;
+
+public class BTTVGlobalEmoteProvider implements IEmoteProvider {
+	@Override
+	public int priority() {
+		return 10;
+	}
+
+	@Override
+	public void registerEmotes(final Configuration config, final IEmoteRegistry registry) throws Exception {
+		final BetterTTVService service = new BetterTTVService();
+
+		final Emote[] emoteSets = service.fetchGlobalEmoteSet();
+
+		Arrays.stream(emoteSets)
+			.map(BTTVEmote::new)
+			.forEach(registry::registerEmote);
+	}
+}

src/client/java/net/vinrobot/mcemote/client/providers/BTTVUserEmoteProvider.java

@@ -0,0 +1,27 @@
+package net.vinrobot.mcemote.client.providers;
+
+import net.vinrobot.mcemote.api.bttv.BetterTTVService;
+import net.vinrobot.mcemote.api.bttv.Provider;
+import net.vinrobot.mcemote.api.bttv.UserResponse;
+import net.vinrobot.mcemote.config.Configuration;
+
+import java.util.Arrays;
+import java.util.stream.Stream;
+
+public class BTTVUserEmoteProvider implements IEmoteProvider {
+	@Override
+	public void registerEmotes(final Configuration config, final IEmoteRegistry registry) throws Exception {
+		final String twitchId = config.twitchId().get();
+		if (twitchId.isEmpty()) {
+			return;
+		}
+
+		final BetterTTVService service = new BetterTTVService();
+
+		final UserResponse emoteSets = service.fetchUserEmoteSet(Provider.TWITCH, twitchId);
+
+		Stream.concat(Arrays.stream(emoteSets.channelEmotes()), Arrays.stream(emoteSets.sharedEmotes()))
+			.map(BTTVEmote::new)
+			.forEach(registry::registerEmote);
+	}
+}

src/client/resources/META-INF/services/net.vinrobot.mcemote.client.providers.IEmoteProvider

@@ -2,3 +2,5 @@ net.vinrobot.mcemote.client.providers.STVGlobalEmoteProvider
 net.vinrobot.mcemote.client.providers.STVUserEmoteProvider
 net.vinrobot.mcemote.client.providers.FFZGlobalEmoteProvider
 net.vinrobot.mcemote.client.providers.FFZRoomEmoteProvider
+net.vinrobot.mcemote.client.providers.BTTVGlobalEmoteProvider
+net.vinrobot.mcemote.client.providers.BTTVUserEmoteProvider

src/main/java/net/vinrobot/mcemote/api/bttv/BetterTTVService.java

@@ -0,0 +1,45 @@
+package net.vinrobot.mcemote.api.bttv;
+
+import com.google.gson.Gson;
+
+import java.io.IOException;
+import java.net.URI;
+import java.net.http.HttpClient;
+import java.net.http.HttpRequest;
+import java.net.http.HttpResponse;
+
+public class BetterTTVService {
+	public static final String BASE_API = "https://api.betterttv.net/3/cached";
+	public static final URI GLOBAL_EMOTE_SET_URI = URI.create(BASE_API + "/emotes/global");
+
+	private final HttpClient httpClient;
+	private final Gson gson = new Gson();
+
+	public BetterTTVService() {
+		this(HttpClient.newHttpClient());
+	}
+
+	public BetterTTVService(HttpClient httpClient) {
+		this.httpClient = httpClient;
+	}
+
+	public Emote[] fetchGlobalEmoteSet() throws IOException, InterruptedException {
+		HttpRequest httpRequest = HttpRequest.newBuilder()
+			.uri(GLOBAL_EMOTE_SET_URI)
+			.build();
+
+		HttpResponse<String> httpResponse = httpClient.send(httpRequest, HttpResponse.BodyHandlers.ofString());
+
+		return gson.fromJson(httpResponse.body(), Emote[].class);
+	}
+
+	public UserResponse fetchUserEmoteSet(Provider provider, String userId) throws IOException, InterruptedException {
+		HttpRequest httpRequest = HttpRequest.newBuilder()
+			.uri(URI.create(BASE_API + "/users/" + provider.path + "/" + userId))
+			.build();
+
+		HttpResponse<String> httpResponse = httpClient.send(httpRequest, HttpResponse.BodyHandlers.ofString());
+
+		return gson.fromJson(httpResponse.body(), UserResponse.class);
+	}
+}

src/main/java/net/vinrobot/mcemote/api/bttv/Emote.java

@@ -0,0 +1,11 @@
+package net.vinrobot.mcemote.api.bttv;
+
+public record Emote(
+	String id,
+	String code,
+	String imageType,
+	boolean animated,
+	int width,
+	int height
+) {
+}

src/main/java/net/vinrobot/mcemote/api/bttv/Provider.java

@@ -0,0 +1,12 @@
+package net.vinrobot.mcemote.api.bttv;
+
+public enum Provider {
+	TWITCH("twitch"),
+	YOUTUBE("youtube");
+
+	public final String path;
+
+	Provider(String path) {
+		this.path = path;
+	}
+}

src/main/java/net/vinrobot/mcemote/api/bttv/User.java

@@ -0,0 +1,9 @@
+package net.vinrobot.mcemote.api.bttv;
+
+public record User(
+	String id,
+	String name,
+	String displayName,
+	String providerId
+) {
+}

src/main/java/net/vinrobot/mcemote/api/bttv/UserResponse.java

@@ -0,0 +1,10 @@
+package net.vinrobot.mcemote.api.bttv;
+
+public record UserResponse(
+	String id,
+	String[] bots,
+	String avatar,
+	Emote[] channelEmotes,
+	Emote[] sharedEmotes
+) {
+}