using System.Collections.Concurrent;

namespace codelanguage;

public class ClientService
{
    private readonly ConcurrentDictionary<string, ClientState> _clients = new();

    public ClientState? GetClient(string id) => _clients.TryGetValue(id, out var c) ? c : null;
    public ClientState Register(string id)
    {
        var client = new ClientState { Id = id };
        _clients[id] = client;
        return client;
    }
    public void Unregister(string id) => _clients.TryRemove(id, out _);

    public void SetVar(string clientId, string varName, CraftValue value)
    {
        var client = GetClient(clientId);
        if (client != null) client.Vars[varName] = value;
    }

    public CraftValue? GetVar(string clientId, string varName)
    {
        var client = GetClient(clientId);
        if (client != null && client.Vars.TryGetValue(varName, out var v)) return v;
        return null;
    }

    public void Broadcast(string message)
    {
        foreach (var client in _clients.Values)
        {
            client.OutputQueue.Enqueue(message);
        }
    }
}

public class ClientState
{
    public string Id { get; set; } = "";
    public ConcurrentQueue<string> OutputQueue { get; } = new();
    public Dictionary<string, CraftValue> Vars { get; set; } = new();
    public string? CurrentBrowser { get; set; }
    public string? Eye { get; set; }
    public int? ViewSize { get; set; } = 7;
    public string? Perspective { get; set; } = "mob";
    public Dictionary<string, string> Screen { get; set; } = new();
}