package tc.oc.commons.bukkit.chat;

import java.util.Set;
import javax.inject.Inject;
import javax.inject.Singleton;

import com.google.common.collect.ImmutableSet;
import net.md_5.bungee.api.chat.BaseComponent;
import tc.oc.api.bukkit.users.BukkitUserStore;
import tc.oc.api.docs.virtual.UserDoc;
import tc.oc.api.minecraft.MinecraftService;
import tc.oc.commons.bukkit.nick.Identity;
import tc.oc.commons.core.chat.Components;

/**
 * Renders a player's flair only
 */
@Singleton
public class FlairRenderer implements PartialNameRenderer {

    private final MinecraftService minecraftService;
    private final BukkitUserStore userStore;

    @Inject protected FlairRenderer(MinecraftService minecraftService, BukkitUserStore userStore) {
        this.minecraftService = minecraftService;
        this.userStore = userStore;
    }

    @Override
    public String getLegacyName(Identity identity, NameType type) {
        if(!(type.style.contains(NameFlag.FLAIR) && type.reveal)) return "";

        final UserDoc.Identity user;
        if(identity.getPlayerId() instanceof UserDoc.Identity) {
            // Flair may already be stashed inside the Identity
            user = (UserDoc.Identity) identity.getPlayerId();
        } else {
            user = userStore.tryUser(identity.getPlayerId());
        }
        if(user == null) return "";

        final Set<String> realms = ImmutableSet.copyOf(minecraftService.getLocalServer().realms());

        return user.minecraft_flair()
                   .stream()
                   .filter(flair -> realms.contains(flair.realm))
                   .map(flair -> flair.text)
                   .reduce("", String::concat);
    }

    @Override
    public BaseComponent getComponentName(Identity identity, NameType type) {
        return Components.fromLegacyText(getLegacyName(identity, type));
    }
}