using UnityEngine;

public static class PlayerTitleResolver
{
    private const string PlayerTitleLibraryResourcePath = "so/player_titles/PlayerTitleLibrary";

    private static PlayerTitleLibrary cachedTitleLibrary;

    public readonly struct ResolvedTitle
    {
        public readonly string titleId;
        public readonly string titleText;
        public readonly Sprite titleSprite;

        public bool HasSprite => titleSprite != null;
        public bool HasText => !string.IsNullOrWhiteSpace(titleText);
        public bool HasAny => HasSprite || HasText;

        public ResolvedTitle(string titleId, string titleText, Sprite titleSprite)
        {
            this.titleId = titleId ?? string.Empty;
            this.titleText = titleText ?? string.Empty;
            this.titleSprite = titleSprite;
        }
    }

    public static ResolvedTitle Resolve(string titleId, string fallbackText)
    {
        string safeTitleId = string.IsNullOrWhiteSpace(titleId) ? string.Empty : titleId.Trim();
        string safeFallbackText = string.IsNullOrWhiteSpace(fallbackText) ? string.Empty : fallbackText.Trim();
        Sprite sprite = null;
        string resolvedText = safeFallbackText;

        PlayerTitleLibrary library = GetTitleLibrary();
        if (library != null && !string.IsNullOrEmpty(safeTitleId)
            && library.TryGetTitle(safeTitleId, out PlayerTitleLibrary.PlayerTitleEntry entry)
            && entry != null)
        {
            sprite = entry.titleSprite;

            if (string.IsNullOrWhiteSpace(resolvedText))
            {
                resolvedText = !string.IsNullOrWhiteSpace(entry.chineseName)
                    ? entry.chineseName.Trim()
                    : (!string.IsNullOrWhiteSpace(entry.englishName) ? entry.englishName.Trim() : safeTitleId);
            }
        }

        return new ResolvedTitle(safeTitleId, resolvedText, sprite);
    }

    public static Sprite ResolveSprite(string titleId)
    {
        return Resolve(titleId, string.Empty).titleSprite;
    }

    public static PlayerTitleLibrary GetTitleLibrary()
    {
        if (cachedTitleLibrary == null)
        {
            cachedTitleLibrary = Resources.Load<PlayerTitleLibrary>(PlayerTitleLibraryResourcePath);
        }

        return cachedTitleLibrary;
    }
}