@using Sandbox;
@using Sandbox.UI;
@using Sandbox.Services;
@using System;
@using System.Threading.Tasks;
@using System.Collections.Generic;
@using System.Linq;
@inherits Panel

<root class="lb-root @(IsOpen ? "open" : "")">
    <div class="lb-card">
        <div class="lb-header">
            <div class="lb-title">GLOBAL LEADERBOARD</div>
            <button class="lb-close" onclick="@Toggle">✕</button>
        </div>

        <div class="lb-tabs">
            <button class="tab-btn @(CurrentStat == "pushes_count" ? "active" : "")" onclick="@(() => SelectStat("pushes_count"))">
                PUSHES
            </button>
            <button class="tab-btn @(CurrentStat == "rounds_won" ? "active" : "")" onclick="@(() => SelectStat("rounds_won"))">
                WINS
            </button>
        </div>

        <div class="lb-content">
            @if (IsLoading)
            {
                <div class="lb-status">LOADING DATA...</div>
            }
            else if (Entries == null || Entries.Count == 0)
            {
                <div class="lb-status">NO RECORD FOUND</div>
            }
            else
            {
                <div class="lb-table">
                    <div class="table-header">
                        <span class="col-rank">#</span>
                        <span class="col-player">PLAYER</span>
                        <span class="col-score">SCORE</span>
                    </div>
                    <div class="table-body">
                        @foreach (var entry in Entries)
                        {
                            <div class="table-row @(entry.SteamId == (Connection.Local?.SteamId ?? 0) ? "is-me" : "")">
                                <span class="col-rank">@GetRankBadge(entry.Rank)</span>
                                <span class="col-player">@entry.DisplayName</span>
                                <span class="col-score">@entry.Value.ToString("N0")</span>
                            </div>
                        }
                    </div>
                </div>
            }
        </div>
    </div>
</root>

@code {
    public class EntryItem
    {
        public int Rank { get; set; }
        public string DisplayName { get; set; }
        public double Value { get; set; }
        public ulong SteamId { get; set; }
    }

    public bool IsOpen { get; set; } = false;
    public bool IsLoading { get; set; } = true;
    public string CurrentStat { get; set; } = "pushes_count";
    public List<EntryItem> Entries { get; set; } = new();

    protected override void OnAfterTreeRender( bool firstTime )
    {
        base.OnAfterTreeRender( firstTime );
        if ( firstTime )
        {
            _ = RefreshData();
        }
    }

    public void Toggle()
    {
        IsOpen = !IsOpen;
        if (IsOpen)
        {
            _ = RefreshData();
        }
        StateHasChanged();
    }

    private async Task SelectStat(string statIdent)
    {
        if (CurrentStat == statIdent) return;
        CurrentStat = statIdent;
        await RefreshData();
    }

    private async Task RefreshData()
    {
        IsLoading = true;
        StateHasChanged();

        try
        {
            var board = Leaderboards.GetFromStat("seilordstudio.one_more_push", CurrentStat);
            board.SetAggregationSum();
            board.MaxEntries = 20;
            await board.Refresh();

            if (board.Entries != null)
            {
                Entries = board.Entries.Select(x => new EntryItem
                {
                    Rank = Convert.ToInt32(x.Rank),
                    DisplayName = x.DisplayName ?? "Player",
                    Value = Convert.ToDouble(x.Value),
                    SteamId = Convert.ToUInt64(x.SteamId)
                }).ToList();
            }
            else
            {
                Entries = new();
            }
        }
        catch (System.Exception ex)
        {
            Log.Warning($"Leaderboard fetch failed: {ex.Message}");
        }

        IsLoading = false;
        StateHasChanged();
    }

    private string GetRankBadge(int rank)
    {
        return rank switch
        {
            1 => "🥇 1",
            2 => "🥈 2",
            3 => "🥉 3",
            _ => rank.ToString()
        };
    }
}