package com.spigotchatsync;

import java.time.Instant;
import java.time.LocalTime;
import java.time.ZoneId;
import java.time.format.DateTimeFormatter;

public final class MessageFormatter {
    private static final DateTimeFormatter TIME_FORMAT = DateTimeFormatter.ofPattern("HH:mm");

    private MessageFormatter() {
    }

    public static String format(String template, ChatSyncMessage message) {
        String output = template;
        output = output.replace("{server}", nullSafe(message.getServer()));
        output = output.replace("{player}", nullSafe(message.getPlayerName()));
        output = output.replace("{message}", nullSafe(message.getMessage()));
        output = output.replace("{time}", formatTime(message.getTimestamp()));
        return output;
    }

    private static String nullSafe(String value) {
        return value == null ? "" : value;
    }

    private static String formatTime(long epochSeconds) {
        if (epochSeconds <= 0) {
            return "";
        }
        LocalTime time = Instant.ofEpochSecond(epochSeconds).atZone(ZoneId.systemDefault()).toLocalTime();
        return TIME_FORMAT.format(time);
    }
}