package xyz.etztech.qol.listeners;

import org.bukkit.ChatColor;
import org.bukkit.entity.Player;
import org.bukkit.event.EventHandler;
import org.bukkit.event.EventPriority;
import org.bukkit.event.Listener;
import org.bukkit.event.player.AsyncPlayerChatEvent;
import org.bukkit.advancement.Advancement;
import org.bukkit.Namespacedkey;
import xyz.etztech.qol.QoL;

import java.util.Arrays;
import java.util.List;
import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class AsyncPlayerChatListener implements Listener {

    private final List<Pattern> discordSyntax = Arrays.asList(
            Pattern.compile("__([^_]+)__"),         // 0: __underline__
            Pattern.compile("_([^_]+)_"),           // 1: _italic_
            Pattern.compile("\\*\\*([^*]+)\\*\\*"), // 2: **bold**
            Pattern.compile("\\*([^*]+)\\*"),       // 3: *italic*
            Pattern.compile("~~([^~]+)~~")          // 4: ~~strikethrough~~
    );

    private QoL plugin;

    public AsyncPlayerChatListener(QoL plugin) {
        this.plugin = plugin;
        plugin.getServer().getPluginManager().registerEvents(this, plugin);
    }

    @EventHandler(priority=EventPriority.HIGH, ignoreCancelled=true)
    public void onChat(AsyncPlayerChatEvent event) {

        Player player = event.getPlayer();
        if (QoL.hasSM(player)) {
            event.getRecipients().clear();
            event.getRecipients().add(player);
        }

        if (QoL.getTimeout() && !player.hasPermission("qol.timeout.bypass")) {
            event.getRecipients().clear();
        }

        // Discord syntax for font emphasis
        if (player.hasPermission("qol.discord")) {
            String chat = event.getMessage();
            boolean escape = false;

            //Checking if player has been awarded the chat advancement, if not, message is searched for triggers
            Advancement adv = Bukkit.getAdvancement(new Namespacedkey("canopy", "chat_advancement"));
            
            if (!player.getAdvancementProgress(adv).isDone()) {
                List<String> advancementTriggerList = plugin.getConfig().getStringList("chat-advancement-triggers");
                if (advancementTriggerList.stream().anyMatch(t -> chat.toLowerCase().contains(t.toLowerCase()))) {
                    player.getAdvancementProgress(adv).awardCriteria("win");
                }
            }

            // Escape
            if (chat.startsWith("\\")) {
                escape = true;
                event.setMessage(chat.substring(1));

                // Escape the escape, this monster wants to start their message with a backslash
                if (chat.startsWith("\\\\")) {
                    escape = false;
                }
            }

            if (!escape) {
                Pattern syntax;
                Matcher matcher;
                for (int i = 0; i < discordSyntax.size(); i++) {
                    syntax = discordSyntax.get(i);
                    matcher = syntax.matcher(chat);
                    switch (i) {
                        case 0:
                            chat = matcher.replaceAll("&n$1&r");
                            break;
                        case 1:
                        case 3:
                            chat = matcher.replaceAll("&o$1&r");
                            break;
                        case 2:
                            chat = matcher.replaceAll("&l$1&r");
                            break;
                        case 4:
                            chat = matcher.replaceAll("&m$1&r");
                            break;
                        default:
                            break;
                    }
                }
                event.setMessage(ChatColor.translateAlternateColorCodes('&', chat));
            }
        }
    }



}