using System;
using System.Numerics;
using TMPro;
using UnityEngine;
using UnityEngine.UI;

public static class Tools
{
    public static Sprite GetIconForUser(BigInteger user)
    {
        if (user == 1) return Resources.Load<Sprite>("Icons/Icons/bird_-1");
        else if (user == 2) return Resources.Load<Sprite>("Icons/Icons/bird_-2");
        else if (user == 4) return Resources.Load<Sprite>("Icons/Icons/bird_-3");
        else if (user == 3) return Resources.Load<Sprite>("Icons/Icons/bird_-4");
        else return Resources.Load<Sprite>("Icons/Icons/bird_1");
    }

    public static string FormatWithCommas(string number)
    {
        try { return FormatWithCommas(BigInteger.Parse(number)); }
        catch { return number; }
    }

    public static string FormatWithCommas(BigInteger number)
    {
        return string.Format("{0:N0}", number);
    }

    public static void UpdateStatusText(TMP_Text statusText, string message, Color color)
    {
        statusText.text = message;
        statusText.color = color;
    }

    public static void RenderFromBase64(string base64, Image targetImage)
    {
        byte[] imageData = Convert.FromBase64String(base64);
        Texture2D tex = new(2, 2, TextureFormat.ARGB32, false);
        if (!tex.LoadImage(imageData)) return;

        tex.filterMode = FilterMode.Point;
        tex.Apply(false, false);

        Sprite sprite = Sprite.Create(tex, new Rect(0, 0, tex.width, tex.height), new UnityEngine.Vector2(0.5f, 0.5f));
        targetImage.sprite = sprite;
    }

    public static void RenderFromBase64(string base64, SpriteRenderer targetImage)
    {
        byte[] imageData = Convert.FromBase64String(base64);
        Texture2D tex = new(2, 2, TextureFormat.ARGB32, false);
        if (!tex.LoadImage(imageData)) return;

        tex.filterMode = FilterMode.Point;
        tex.Apply(false, false);

        Sprite sprite = Sprite.Create(tex, new Rect(0, 0, tex.width, tex.height), new UnityEngine.Vector2(0.5f, 0.5f));
        targetImage.sprite = sprite;
    }

    public static void RefreshHierarchy(GameObject root)
    {
        foreach (Transform child in root.transform) RefreshHierarchy(child.gameObject);
        if (root.TryGetComponent<RectTransform>(out var rect)) LayoutRebuilder.ForceRebuildLayoutImmediate(rect);
    }

    public static (string, string) FixIconData(string i)
    {
        int t = i.Length;
        int h = 128;
        int d = t - h;
        int a = d / 4;
        int b = h / 4;

        string D = string.Concat(
            i.Substring(0, a),
            i.Substring(a + b, a),
            i.Substring(a * 2 + b * 2, a),
            i.Substring(a * 3 + b * 3, d - a * 3)
        );

        string H = string.Concat(
            i.Substring(a, b),
            i.Substring(a * 2 + b, b),
            i.Substring(a * 3 + b * 2, b),
            i.Substring(a * 4 + b * 3, b)
        );

        return (D, H);
    }
}