Bat/src/main/java/cc/fascinated/bat/service/EventService.java

package cc.fascinated.bat.service;

import cc.fascinated.bat.common.EmbedUtils;
import cc.fascinated.bat.event.EventListener;
import cc.fascinated.bat.model.BatGuild;
import cc.fascinated.bat.model.BatUser;
import cc.fascinated.bat.model.DiscordMessage;
import lombok.NonNull;
import lombok.extern.log4j.Log4j2;
import net.dv8tion.jda.api.entities.Invite;
import net.dv8tion.jda.api.events.channel.ChannelCreateEvent;
import net.dv8tion.jda.api.events.channel.ChannelDeleteEvent;
import net.dv8tion.jda.api.events.channel.update.ChannelUpdateNameEvent;
import net.dv8tion.jda.api.events.emoji.EmojiAddedEvent;
import net.dv8tion.jda.api.events.emoji.EmojiRemovedEvent;
import net.dv8tion.jda.api.events.emoji.update.EmojiUpdateNameEvent;
import net.dv8tion.jda.api.events.guild.GuildBanEvent;
import net.dv8tion.jda.api.events.guild.GuildUnbanEvent;
import net.dv8tion.jda.api.events.guild.invite.GuildInviteCreateEvent;
import net.dv8tion.jda.api.events.guild.member.GuildMemberJoinEvent;
import net.dv8tion.jda.api.events.guild.member.GuildMemberRemoveEvent;
import net.dv8tion.jda.api.events.guild.member.GuildMemberRoleAddEvent;
import net.dv8tion.jda.api.events.guild.member.GuildMemberRoleRemoveEvent;
import net.dv8tion.jda.api.events.guild.member.update.GuildMemberUpdateBoostTimeEvent;
import net.dv8tion.jda.api.events.guild.member.update.GuildMemberUpdateNicknameEvent;
import net.dv8tion.jda.api.events.guild.member.update.GuildMemberUpdateTimeOutEvent;
import net.dv8tion.jda.api.events.guild.override.GenericPermissionOverrideEvent;
import net.dv8tion.jda.api.events.guild.voice.GuildVoiceUpdateEvent;
import net.dv8tion.jda.api.events.interaction.ModalInteractionEvent;
import net.dv8tion.jda.api.events.interaction.component.ButtonInteractionEvent;
import net.dv8tion.jda.api.events.interaction.component.StringSelectInteractionEvent;
import net.dv8tion.jda.api.events.message.MessageDeleteEvent;
import net.dv8tion.jda.api.events.message.MessageReceivedEvent;
import net.dv8tion.jda.api.events.role.RoleCreateEvent;
import net.dv8tion.jda.api.events.role.RoleDeleteEvent;
import net.dv8tion.jda.api.events.role.update.RoleUpdateNameEvent;
import net.dv8tion.jda.api.events.role.update.RoleUpdatePermissionsEvent;
import net.dv8tion.jda.api.events.user.update.UserUpdateAvatarEvent;
import net.dv8tion.jda.api.events.user.update.UserUpdateGlobalNameEvent;
import net.dv8tion.jda.api.events.user.update.UserUpdateNameEvent;
import net.dv8tion.jda.api.hooks.ListenerAdapter;
import org.jetbrains.annotations.NotNull;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.DependsOn;
import org.springframework.stereotype.Service;

import java.util.HashSet;
import java.util.Set;

/**
 * @author Fascinated (fascinated7)
 */
@Service
@Log4j2(topic = "Event Service")
@DependsOn("discordService")
public class EventService extends ListenerAdapter {
    /**
     * The list of listeners registered
     */
    public static final Set<EventListener> LISTENERS = new HashSet<>();
    private final GuildService guildService;
    private final UserService userService;
    private final DiscordMessageService discordMessageService;

    @Autowired
    public EventService(@NonNull ApplicationContext context, @NonNull GuildService guildService, @NonNull UserService userService,
                        @NonNull DiscordMessageService discordMessageService) {
        this.guildService = guildService;
        this.userService = userService;
        this.discordMessageService = discordMessageService;
        DiscordService.JDA.addEventListener(this);

        context.getBeansOfType(EventListener.class).values().forEach(this::registerListeners);
        log.info("Registered {} event listeners.", LISTENERS.size());
    }

    /**
     * Registers an event listener
     *
     * @param listener the listener to register
     */
    public void registerListeners(EventListener... listener) {
        LISTENERS.addAll(Set.of(listener));
    }

    @Override
    public void onGuildMemberJoin(@NotNull GuildMemberJoinEvent event) {
        if (event.getUser().isBot()) {
            return;
        }
        BatGuild guild = guildService.getGuild(event.getGuild().getId());
        BatUser user = userService.getUser(event.getUser().getId(), event.getUser());

        for (EventListener listener : LISTENERS) {
            listener.onGuildMemberJoin(guild, user, event);
        }
    }

    @Override
    public void onGuildMemberRemove(@NonNull GuildMemberRemoveEvent event) {
        if (event.getUser().isBot()) {
            return;
        }
        BatGuild guild = guildService.getGuild(event.getGuild().getId());
        BatUser user = userService.getUser(event.getUser().getId(), event.getUser());

        for (EventListener listener : LISTENERS) {
            listener.onGuildMemberLeave(guild, user, event);
        }
    }

    @Override
    public void onMessageReceived(MessageReceivedEvent event) {
        if (event.getAuthor().isBot()) {
            return;
        }
        BatGuild guild = guildService.getGuild(event.getGuild().getId());
        BatUser user = userService.getUser(event.getAuthor().getId(), event.getAuthor());

        for (EventListener listener : LISTENERS) {
            listener.onGuildMessageReceive(guild, user, event);
        }
    }

    @Override
    public void onMessageDelete(@NotNull MessageDeleteEvent event) {
        BatGuild guild = guildService.getGuild(event.getGuild().getId());
        DiscordMessage message = discordMessageService.getMessage(event.getMessageId());
        BatUser user = message == null ? null : userService.getUser(message.getAuthorId());

        for (EventListener listener : LISTENERS) {
            listener.onGuildMessageDelete(guild, user, message, event);
        }
    }

    @Override
    public void onStringSelectInteraction(StringSelectInteractionEvent event) {
        if (event.getUser().isBot()) {
            return;
        }
        BatGuild guild = event.getGuild() != null ? guildService.getGuild(event.getGuild().getId()) : null;
        BatUser user = userService.getUser(event.getUser().getId(), event.getUser());

        for (EventListener listener : LISTENERS) {
            listener.onStringSelectInteraction(guild, user, event);
        }
    }

    @Override
    public void onButtonInteraction(ButtonInteractionEvent event) {
        if (event.getUser().isBot()) {
            return;
        }
        BatGuild guild = event.getGuild() != null ? guildService.getGuild(event.getGuild().getId()) : null;
        BatUser user = userService.getUser(event.getUser().getId(), event.getUser());

        try {
            for (EventListener listener : LISTENERS) {
                listener.onButtonInteraction(guild, user, event);
            }
        } catch (Exception ex) {
            log.error("An error occurred while handling a modal interaction.", ex);
            event.replyEmbeds(EmbedUtils.genericInteractionError(ex).build()).setEphemeral(true).queue();
        }
    }

    @Override
    public void onModalInteraction(ModalInteractionEvent event) {
        if (event.getUser().isBot()) {
            return;
        }
        BatGuild guild = event.getGuild() != null ? guildService.getGuild(event.getGuild().getId()) : null;
        BatUser user = userService.getUser(event.getUser().getId(), event.getUser());

        try {
            for (EventListener listener : LISTENERS) {
                listener.onModalInteraction(guild, user, event);
            }
        } catch (Exception ex) {
            log.error("An error occurred while handling a modal interaction.", ex);
            event.replyEmbeds(EmbedUtils.genericInteractionError(ex).build()).setEphemeral(true).queue();
        }
    }

    @Override
    public void onUserUpdateGlobalName(@NotNull UserUpdateGlobalNameEvent event) {
        if (event.getUser().isBot()) {
            return;
        }
        BatUser user = userService.getUser(event.getUser().getId(), event.getUser());

        for (EventListener listener : LISTENERS) {
            listener.onUserUpdateGlobalName(user, event.getOldGlobalName(), event.getNewGlobalName(), event);
        }
    }

    @Override
    public void onGuildMemberUpdateNickname(@NotNull GuildMemberUpdateNicknameEvent event) {
        if (event.getUser().isBot()) {
            return;
        }
        BatGuild guild = guildService.getGuild(event.getGuild().getId());
        BatUser user = userService.getUser(event.getUser().getId(), event.getUser());

        for (EventListener listener : LISTENERS) {
            listener.onGuildMemberUpdateNickname(guild, user, event.getOldNickname(), event.getNewNickname(), event);
        }
    }

    @Override
    public void onGuildMemberRoleAdd(@NotNull GuildMemberRoleAddEvent event) {
        if (event.getUser().isBot()) {
            return;
        }
        BatGuild guild = guildService.getGuild(event.getGuild().getId());
        BatUser user = userService.getUser(event.getUser().getId(), event.getUser());

        for (EventListener listener : LISTENERS) {
            listener.onGuildMemberRoleAdd(guild, user, event.getRoles(), event);
        }
    }

    @Override
    public void onGuildMemberRoleRemove(@NotNull GuildMemberRoleRemoveEvent event) {
        if (event.getUser().isBot()) {
            return;
        }
        BatGuild guild = guildService.getGuild(event.getGuild().getId());
        BatUser user = userService.getUser(event.getUser().getId(), event.getUser());

        for (EventListener listener : LISTENERS) {
            listener.onGuildMemberRoleRemove(guild, user, event.getRoles(), event);
        }
    }

    @Override
    public void onChannelCreate(@NotNull ChannelCreateEvent event) {
        BatGuild guild = guildService.getGuild(event.getGuild().getId());

        for (EventListener listener : LISTENERS) {
            listener.onChannelCreate(guild, event);
        }
    }

    @Override
    public void onChannelDelete(@NotNull ChannelDeleteEvent event) {
        BatGuild guild = guildService.getGuild(event.getGuild().getId());

        for (EventListener listener : LISTENERS) {
            listener.onChannelDelete(guild, event);
        }
    }

    @Override
    public void onGuildBan(@NotNull GuildBanEvent event) {
        if (event.getUser().isBot()) {
            return;
        }
        BatGuild guild = guildService.getGuild(event.getGuild().getId());
        BatUser user = userService.getUser(event.getUser().getId(), event.getUser());

        for (EventListener listener : LISTENERS) {
            listener.onGuildMemberBan(guild, user, event);
        }
    }

    @Override
    public void onGuildUnban(@NotNull GuildUnbanEvent event) {
        if (event.getUser().isBot()) {
            return;
        }
        BatGuild guild = guildService.getGuild(event.getGuild().getId());
        BatUser user = userService.getUser(event.getUser().getId(), event.getUser());

        for (EventListener listener : LISTENERS) {
            listener.onGuildMemberUnban(guild, user, event);
        }
    }

    @Override
    public void onGuildMemberUpdateTimeOut(@NotNull GuildMemberUpdateTimeOutEvent event) {
        if (event.getUser().isBot()) {
            return;
        }
        BatGuild guild = guildService.getGuild(event.getGuild().getId());
        BatUser user = userService.getUser(event.getUser().getId(), event.getUser());

        for (EventListener listener : LISTENERS) {
            listener.onGuildMemberTimeout(guild, user, event);
        }
    }

    @Override
    public void onUserUpdateName(@NotNull UserUpdateNameEvent event) {
        if (event.getUser().isBot()) {
            return;
        }
        BatUser user = userService.getUser(event.getUser().getId(), event.getUser());

        for (EventListener listener : LISTENERS) {
            listener.onUserUpdateName(user, event.getOldName(), event.getNewName(), event);
        }
    }

    @Override
    public void onUserUpdateAvatar(@NotNull UserUpdateAvatarEvent event) {
        if (event.getUser().isBot()) {
            return;
        }
        BatUser user = userService.getUser(event.getUser().getId(), event.getUser());

        for (EventListener listener : LISTENERS) {
            listener.onUserUpdateAvatar(user, event.getOldAvatarUrl(), event.getNewAvatarUrl(), event);
        }
    }

    @Override
    public void onGuildVoiceUpdate(@NotNull GuildVoiceUpdateEvent event) {
        if (event.getEntity().getUser().isBot()) {
            return;
        }
        BatGuild guild = guildService.getGuild(event.getEntity().getGuild().getId());
        BatUser user = userService.getUser(event.getEntity().getUser().getId(), event.getEntity().getUser());

        for (EventListener listener : LISTENERS) {
            listener.onGuildVoiceUpdate(guild, user, event);
        }
    }

    @Override
    public void onGuildInviteCreate(@NotNull GuildInviteCreateEvent event) {
        BatGuild guild = guildService.getGuild(event.getGuild().getId());
        Invite invite = event.getInvite();

        for (EventListener listener : LISTENERS) {
            listener.onGuildInviteCreate(guild, invite, event);
        }
    }

    @Override
    public void onGuildMemberUpdateBoostTime(@NotNull GuildMemberUpdateBoostTimeEvent event) {
        if (event.getUser().isBot()) {
            return;
        }
        BatGuild guild = guildService.getGuild(event.getGuild().getId());
        BatUser user = userService.getUser(event.getUser().getId(), event.getUser());

        // Boost tier(s) added
        if (event.getNewTimeBoosted() != null) {
            for (EventListener listener : LISTENERS) {
                listener.onGuildMemberBoostAdd(guild, user, event.getOldTimeBoosted(), event.getNewTimeBoosted(), event);
            }
        }

        // Boost tier(s) removed
        if (event.getOldTimeBoosted() != null) {
            for (EventListener listener : LISTENERS) {
                listener.onGuildMemberBoostRemove(guild, user, event.getOldTimeBoosted(), event.getNewTimeBoosted(), event);
            }
        }
    }

    @Override
    public void onEmojiAdded(@NotNull EmojiAddedEvent event) {
        BatGuild guild = guildService.getGuild(event.getGuild().getId());

        for (EventListener listener : LISTENERS) {
            listener.onEmojiAdd(guild, event.getEmoji(), event);
        }
    }

    @Override
    public void onEmojiRemoved(@NotNull EmojiRemovedEvent event) {
        BatGuild guild = guildService.getGuild(event.getGuild().getId());

        for (EventListener listener : LISTENERS) {
            listener.onEmojiRemove(guild, event.getEmoji(), event);
        }
    }

    @Override
    public void onEmojiUpdateName(@NotNull EmojiUpdateNameEvent event) {
        BatGuild guild = guildService.getGuild(event.getGuild().getId());

        for (EventListener listener : LISTENERS) {
            listener.onEmojiRename(guild, event.getEmoji(), event.getOldName(), event.getNewName(), event);
        }
    }

    @Override
    public void onChannelUpdateName(@NotNull ChannelUpdateNameEvent event) {
        BatGuild guild = guildService.getGuild(event.getGuild().getId());

        for (EventListener listener : LISTENERS) {
            listener.onChannelUpdateName(guild, event);
        }
    }

    @Override
    public void onGenericPermissionOverride(@NotNull GenericPermissionOverrideEvent event) {
        BatGuild guild = guildService.getGuild(event.getGuild().getId());

        for (EventListener listener : LISTENERS) {
            listener.onPermissionOverride(guild, event);
        }
    }

    @Override
    public void onRoleUpdatePermissions(@NotNull RoleUpdatePermissionsEvent event) {
        BatGuild guild = guildService.getGuild(event.getGuild().getId());

        for (EventListener listener : LISTENERS) {
            listener.onRoleUpdatePermissions(guild, event);
        }
    }

    @Override
    public void onRoleCreate(@NotNull RoleCreateEvent event) {
        BatGuild guild = guildService.getGuild(event.getGuild().getId());

        for (EventListener listener : LISTENERS) {
            listener.onRoleCreate(guild, event);
        }
    }

    @Override
    public void onRoleDelete(@NotNull RoleDeleteEvent event) {
        BatGuild guild = guildService.getGuild(event.getGuild().getId());

        for (EventListener listener : LISTENERS) {
            listener.onRoleDelete(guild, event);
        }
    }

    @Override
    public void onRoleUpdateName(@NotNull RoleUpdateNameEvent event) {
        BatGuild guild = guildService.getGuild(event.getGuild().getId());

        for (EventListener listener : LISTENERS) {
            listener.onRoleUpdateName(guild, event);
        }
    }
}