package net.momirealms.customnameplates.objects;

import net.momirealms.customnameplates.ConfigManager;
import net.momirealms.customnameplates.CustomNameplates;
import org.bukkit.entity.Player;

import java.util.ArrayList;
import java.util.List;

public class TextCache {

    //所属玩家
    private final Player owner;
    //初始值
    private final String rawValue;
    //原始文字加工后的值
    private String originalValue;
    //最近一次替换值
    private String latestValue;
    //持有者占位符
    private String[] ownerPlaceholders;

    public TextCache(Player owner, String rawValue) {
        this.owner = owner;
        this.rawValue = rawValue;
        analyze(this.rawValue);
    }

    private void analyze(String value) {
        List<String> placeholdersOwner = new ArrayList<>();
        for (String identifier : CustomNameplates.instance.getPlaceholderManager().detectPlaceholders(value)) {
            if (!identifier.startsWith("%rel_")) {
                placeholdersOwner.add(identifier);
            }
        }
        String origin = value;
        for (String placeholder : placeholdersOwner) {
            origin = origin.replace(placeholder, "%s");
        }
        originalValue = origin;
        ownerPlaceholders = placeholdersOwner.toArray(new String[0]);
        latestValue = originalValue;
        update();
    }

    public String getRawValue() {
        return rawValue;
    }

    public String updateAndGet() {
        update();
        return getLatestValue();
    }

    public String getLatestValue() {
        return latestValue;
    }

    //返回更新结果是否不一致
    public boolean update() {
        if (ownerPlaceholders.length == 0) return false;
        if (!ConfigManager.Main.placeholderAPI) return false;
        String string;
        if ("%s".equals(originalValue)) {
            string = CustomNameplates.instance.getPlaceholderManager().parsePlaceholders(owner, ownerPlaceholders[0]);
        }
        else {
            Object[] values = new String[ownerPlaceholders.length];
            for (int i = 0; i < ownerPlaceholders.length; i++) {
                values[i] = CustomNameplates.instance.getPlaceholderManager().parsePlaceholders(owner, ownerPlaceholders[i]);
            }
            string = String.format(originalValue, values);
        }
        if (!latestValue.equals(string)) {
            latestValue = string;
            return true;
        }
        return false;
    }

    public String getViewerText(Player viewer) {
        return latestValue;
    }
}