package cc.fascinated.bat.service;

import cc.fascinated.bat.model.BatGuild;
import cc.fascinated.bat.repository.GuildRepository;
import lombok.NonNull;
import lombok.extern.log4j.Log4j2;
import net.dv8tion.jda.api.events.guild.GuildJoinEvent;
import net.dv8tion.jda.api.hooks.ListenerAdapter;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.cache.annotation.CachePut;
import org.springframework.cache.annotation.Cacheable;
import org.springframework.context.annotation.DependsOn;
import org.springframework.stereotype.Service;

import java.util.List;
import java.util.Optional;

/**
 * @author Fascinated (fascinated7)
 */
@Service @Log4j2
@DependsOn("discordService")
public class GuildService extends ListenerAdapter {
    /**
     * The guild repository to use
     */
    private final GuildRepository guildRepository;

    @Autowired
    public GuildService(@NonNull GuildRepository guildRepository) {
        this.guildRepository = guildRepository;
        DiscordService.JDA.addEventListener(this);
    }

    /**
     * Gets a guild by its ID
     *
     * @param id The ID of the guild
     * @return The guild
     */
    @Cacheable(cacheNames = "guilds", key = "#id")
    public BatGuild getGuild(@NonNull String id) {
        long start = System.currentTimeMillis();
        Optional<BatGuild> optionalGuild = guildRepository.findById(id);
        if (optionalGuild.isPresent()) {
            return optionalGuild.get();
        }
        BatGuild guild = guildRepository.save(new BatGuild(id));
        log.info("Created guild \"{}\" in {}ms", id, System.currentTimeMillis() - start);
        return guild;
    }

    /**
     * Saves a guild
     *
     * @param guild The guild to save
     */
    @CachePut(cacheNames = "guilds", key = "#guild.id")
    public void saveGuild(@NonNull BatGuild guild) {
        guildRepository.save(guild);
    }

    /**
     * Gets all guilds
     *
     * @return all guilds
     */
    public List<BatGuild> getAllGuilds() {
        return guildRepository.findAll();
    }

    @Override
    public final void onGuildJoin(GuildJoinEvent event) {
        log.info("Joined guild \"{}\"", event.getGuild().getId());
        getGuild(event.getGuild().getId()); // Ensure the guild is in the database
    }
}