using System.Text.Json;
using System.Text.Json.Serialization;
using CounterStrikeSharp.API;
using CounterStrikeSharp.API.Core;
using CounterStrikeSharp.API.Core.Attributes.Registration;
using CounterStrikeSharp.API.Modules.Commands;
using CounterStrikeSharp.API.Modules.Cvars;
using CounterStrikeSharp.API.Modules.Utils;

namespace WebPanelBridge;

// Reports live match state to simpleadmin-web over RCON. The server console command prints one
// JSON object per line, each prefixed with "wpb ", so the web panel can pick them out of whatever
// else lands in the RCON response. Nothing here changes game state.
public class WebPanelBridge : BasePlugin
{
    public override string ModuleName => "WebPanelBridge";
    public override string ModuleVersion => "0.1.0";
    public override string ModuleAuthor => "astra";
    public override string ModuleDescription => "Live server status for simpleadmin-web, over RCON";

    private const string Prefix = "wpb ";

    private static readonly JsonSerializerOptions JsonOptions = new()
    {
        PropertyNamingPolicy = JsonNamingPolicy.CamelCase,
        DefaultIgnoreCondition = JsonIgnoreCondition.Never,
    };

    private record ServerLine(int V, string Hostname, string Map, int MaxPlayers, int ScoreT, int ScoreCt, bool Warmup);

    private record PlayerLine(int Userid, string Name, string Steamid, int Team, int Kills, int Deaths, uint Ping, bool Bot);

    [ConsoleCommand("css_webpanel_status", "Prints live server status as JSON lines for simpleadmin-web")]
    [CommandHelper(whoCanExecute: CommandUsage.SERVER_ONLY)]
    public void OnStatus(CCSPlayerController? caller, CommandInfo command)
    {
        int scoreT = 0, scoreCt = 0;
        foreach (var team in Utilities.FindAllEntitiesByDesignerName<CCSTeam>("cs_team_manager"))
        {
            if (team.TeamNum == (byte)CsTeam.Terrorist)
                scoreT = team.Score;
            else if (team.TeamNum == (byte)CsTeam.CounterTerrorist)
                scoreCt = team.Score;
        }

        var warmup = Utilities.FindAllEntitiesByDesignerName<CCSGameRulesProxy>("cs_gamerules")
            .FirstOrDefault()?.GameRules?.WarmupPeriod ?? false;

        var maxPlayers = Server.MaxPlayers;
        var visible = ConVar.Find("sv_visiblemaxplayers")?.GetPrimitiveValue<int>() ?? -1;
        if (visible > 0)
            maxPlayers = visible;

        var server = new ServerLine(1, ConVar.Find("hostname")?.StringValue ?? "", Server.MapName, maxPlayers,
            scoreT, scoreCt, warmup);
        command.ReplyToCommand(Prefix + JsonSerializer.Serialize(server, JsonOptions));

        foreach (var player in Utilities.GetPlayers())
        {
            if (player is not { IsValid: true, IsHLTV: false } || player.Connected != PlayerConnectedState.Connected)
                continue;

            var stats = player.ActionTrackingServices?.MatchStats;
            var line = new PlayerLine(
                player.UserId ?? -1,
                player.PlayerName,
                player.IsBot ? "0" : player.SteamID.ToString(),
                player.TeamNum,
                stats?.Kills ?? 0,
                stats?.Deaths ?? 0,
                player.Ping,
                player.IsBot);
            command.ReplyToCommand(Prefix + JsonSerializer.Serialize(line, JsonOptions));
        }

        command.ReplyToCommand(Prefix + "end");
    }
}