using Prism.Events;
using System.Text.Json;
using YY.Admin.Core;
using YY.Admin.Core.Events;
using YY.Admin.Core.Services;
using YY.Admin.Services.Service;

namespace YY.Admin.Services.Service.MixerMaterial;

public class MixerMaterialSyncCoordinator : ISingletonDependency
{
    private readonly IEventAggregator _eventAggregator;
    private readonly IMixerMaterialService _mixerMaterialService;
    private readonly ILoggerService _logger;

    public MixerMaterialSyncCoordinator(
        IEventAggregator eventAggregator,
        IMixerMaterialService mixerMaterialService,
        SyncPollManager pollManager,
        ILoggerService logger)
    {
        _eventAggregator = eventAggregator;
        _mixerMaterialService = mixerMaterialService;
        _logger = logger;

        _eventAggregator.GetEvent<RemoteCommandReceivedEvent>()
            .Subscribe(OnRemoteCommand, ThreadOption.BackgroundThread);
        _eventAggregator.GetEvent<NetworkStatusChangedEvent>()
            .Subscribe(OnNetworkStatusChanged, ThreadOption.BackgroundThread);

        pollManager.Register("密炼物料", async () =>
        {
            await _mixerMaterialService.SyncFromRemoteAsync().ConfigureAwait(false);
            _eventAggregator.GetEvent<MixerMaterialChangedEvent>()
                .Publish(new MixerMaterialChangedPayload { Action = "poll" });
        });

        _logger.Information("[密炼物料推送] MixerMaterialSyncCoordinator 已启动");
        _ = _mixerMaterialService.SyncFromRemoteAsync();
    }

    private void OnNetworkStatusChanged(NetworkStatusChangedPayload payload)
    {
        if (!payload.IsOnline) return;
        _ = Task.Run(async () =>
        {
            await _mixerMaterialService.SyncFromRemoteAsync().ConfigureAwait(false);
            _eventAggregator.GetEvent<MixerMaterialChangedEvent>()
                .Publish(new MixerMaterialChangedPayload { Action = "reconnect" });
        });
    }

    private void OnRemoteCommand(RemoteCommandPayload payload)
    {
        try
        {
            var json = payload.CommandJson ?? string.Empty;
            if (string.IsNullOrWhiteSpace(json)) return;

            using var doc = JsonDocument.Parse(json);
            if (!doc.RootElement.TryGetProperty("cmd", out var cmdEl)) return;
            if (!cmdEl.GetString().Equals("MIXER_MATERIAL_CHANGED", StringComparison.OrdinalIgnoreCase)) return;

            doc.RootElement.TryGetProperty("action", out var actionEl);
            doc.RootElement.TryGetProperty("mixerMaterialId", out var idEl);
            if (idEl.ValueKind != JsonValueKind.String && doc.RootElement.TryGetProperty("id", out var id2El))
                idEl = id2El;

            var changed = new MixerMaterialChangedPayload
            {
                Action = actionEl.GetString() ?? string.Empty,
                MixerMaterialId = idEl.ValueKind == JsonValueKind.String ? idEl.GetString() : null
            };

            _ = Task.Run(async () =>
            {
                await _mixerMaterialService.SyncFromRemoteAsync().ConfigureAwait(false);
                _eventAggregator.GetEvent<MixerMaterialChangedEvent>().Publish(changed);
            });
        }
        catch (Exception ex)
        {
            _logger.Warning($"[密炼物料推送] 处理STOMP命令失败：{ex.Message}");
        }
    }
}