using System.Collections.Generic;
using System.Linq;
using System.Text;
using UnityEngine;
using static EHR.Translator;

namespace EHR;

public static class OptionShower
{
    public static int CurrentPage;
    public static List<string> Pages = [];

    static OptionShower()
    {
    }

    public static string GetTextNoFresh()
    {
        if (Pages.Count < 3) GetText();
        return $"{Pages[CurrentPage]}{GetString("PressTabToNextPage")}({CurrentPage + 1}/{Pages.Count})";
    }

    public static string GetText()
    {
        StringBuilder sb = new();
        Pages =
        [
            GameOptionsManager.Instance.CurrentGameOptions.ToHudString(GameData.Instance ? GameData.Instance.PlayerCount : 10) + "\n\n"
        ];

        sb.Append($"{Options.GameMode.GetName()}: {Options.GameMode.GetString()}\n\n");
        if (Options.HideGameSettings.GetBool() && !AmongUsClient.Instance.AmHost)
        {
            sb.Append($"<color=#ff0000>{GetString("Message.HideGameSettings")}</color>");
        }
        else
        {
            if (Options.CurrentGameMode == CustomGameMode.Standard)
            {
                sb.Append($"<color={Utils.GetRoleColorCode(CustomRoles.GM)}>{Utils.GetRoleName(CustomRoles.GM)}:</color> {(Main.GM.Value ? GetString("RoleRate") : GetString("RoleOff"))}\n\n");
                sb.Append(GetString("ActiveRolesList")).Append('\n');
                foreach (var kvp in Options.CustomRoleSpawnChances.Where(kvp => kvp.Value.GameMode is CustomGameMode.Standard or CustomGameMode.All && kvp.Value.GetBool()))
                {
                    sb.Append($"{Utils.ColorString(Utils.GetRoleColor(kvp.Key), Utils.GetRoleName(kvp.Key))}: {kvp.Value.GetString()}×{kvp.Key.GetCount()}\n");
                }

                Pages.Add(sb + "\n\n");
                sb.Clear();
            }

            Pages.Add("");
            sb.Append($"<color={Utils.GetRoleColorCode(CustomRoles.GM)}>{Utils.GetRoleName(CustomRoles.GM)}:</color> {(Main.GM.Value ? GetString("RoleRate") : GetString("RoleOff"))}\n\n");
            foreach (var kvp in Options.CustomRoleSpawnChances)
            {
                if (!kvp.Key.IsEnable() || kvp.Value.IsHiddenOn(Options.CurrentGameMode)) continue;
                sb.Append('\n');
                sb.Append($"{Utils.ColorString(Utils.GetRoleColor(kvp.Key), Utils.GetRoleName(kvp.Key))}: {kvp.Value.GetString()}×{kvp.Key.GetCount()}\n");
                ShowChildren(kvp.Value, ref sb, Utils.GetRoleColor(kvp.Key).ShadeColor(-0.5f), 1);
            }

            foreach (var opt in OptionItem.AllOptions)
            {
                if (opt.Id is >= 90000 and (< 600000 or > 700000) && !opt.IsHiddenOn(Options.CurrentGameMode) && opt.Parent == null && !opt.IsText)
                {
                    if (opt.IsHeader) sb.Append('\n');
                    sb.Append($"{opt.GetName()}: {opt.GetString()}\n");
                    if (opt.GetBool()) ShowChildren(opt, ref sb, Color.white, 1);
                }
            }
        }

        List<string> tmp = [.. sb.ToString().Split("\n\n")];
        foreach (var str in tmp)
        {
            if (Pages[^1].Count(c => c == '\n') + 1 + str.Count(c => c == '\n') + 1 > 35)
                Pages.Add(str + "\n\n");
            else Pages[^1] += str + "\n\n";
        }

        if (CurrentPage >= Pages.Count) CurrentPage = Pages.Count - 1;
        return $"{Pages[CurrentPage]}{GetString("PressTabToNextPage")}({CurrentPage + 1}/{Pages.Count})";
    }

    public static void Next()
    {
        CurrentPage++;
        if (CurrentPage >= Pages.Count) CurrentPage = 0;
    }

    private static void ShowChildren(OptionItem option, ref StringBuilder sb, Color color, int deep = 0)
    {
        foreach (var opt in option.Children.Select((v, i) => new { Value = v, Index = i + 1 }))
        {
            if (opt.Value.Name == "Maximum") continue;
            sb.Append(string.Concat(Enumerable.Repeat(Utils.ColorString(color, "┃"), deep - 1)));
            sb.Append(Utils.ColorString(color, opt.Index == option.Children.Count ? "┗ " : "┣ "));
            sb.Append($"{opt.Value.GetName()}: {opt.Value.GetString()}\n");
            if (opt.Value.GetBool()) ShowChildren(opt.Value, ref sb, color, deep + 1);
        }
    }
}