using Dalamud.Interface;
using Dalamud.Plugin.Services;
using LightlessSync.LightlessConfiguration;
using LightlessSync.LightlessConfiguration.Models;
using LightlessSync.Services.Mediator;
using LightlessSync.UI;
using LightlessSync.UI.Models;
using Microsoft.Extensions.Hosting;
using Microsoft.Extensions.Logging;
using FFXIVClientStructs.FFXIV.Client.UI;

namespace LightlessSync.Services;
public class LightlessNotificationService : DisposableMediatorSubscriberBase, IHostedService
{
    private readonly ILogger<LightlessNotificationService> _logger;
    private readonly LightlessConfigService _configService;
    private readonly DalamudUtilService _dalamudUtilService;
    private LightlessNotificationUI? _notificationUI;
    public LightlessNotificationService(
        ILogger<LightlessNotificationService> logger,
        LightlessConfigService configService,
        DalamudUtilService dalamudUtilService,
        LightlessMediator mediator) : base(logger, mediator)
    {
        _logger = logger;
        _configService = configService;
        _dalamudUtilService = dalamudUtilService;
    }
    public Task StartAsync(CancellationToken cancellationToken)
    {
        return Task.CompletedTask;
    }
    public Task StopAsync(CancellationToken cancellationToken)
    {
        return Task.CompletedTask;
    }
    public void SetNotificationUI(LightlessNotificationUI notificationUI)
    {
        _notificationUI = notificationUI;
    }
    public void ShowNotification(string title, string message, NotificationType type = NotificationType.Info, 
        TimeSpan? duration = null, List<LightlessNotificationAction>? actions = null, uint? soundEffectId = null)
    {
        var notification = new LightlessNotification
        {
            Title = title,
            Message = message,
            Type = type,
            Duration = duration ?? TimeSpan.FromSeconds(10),
            Actions = actions ?? new List<LightlessNotificationAction>(),
            SoundEffectId = soundEffectId ?? NotificationSounds.GetDefaultSound(type)
        };
        
        if (notification.SoundEffectId.HasValue)
        {
            PlayNotificationSound(notification.SoundEffectId.Value);
        }
        
        Mediator.Publish(new LightlessNotificationMessage(notification));
    }
    public void ShowPairRequestNotification(string senderName, string senderId, Action onAccept, Action onDecline)
    {
        var notification = new LightlessNotification
        {
            Title = "Pair Request Received",
            Message = $"{senderName} wants to pair with you.",
            Type = NotificationType.Info,
            Duration = TimeSpan.FromSeconds(60),
            SoundEffectId = NotificationSounds.PairRequest,
            Actions = new List<LightlessNotificationAction>
            {
                new()
                {
                    Id = "accept",
                    Label = "Accept",
                    Icon = FontAwesomeIcon.Check,
                    Color = UIColors.Get("LightlessGreen"),
                    IsPrimary = true,
                    OnClick = (n) =>
                    {
                        _logger.LogInformation("Pair request accepted");
                        onAccept();
                        n.IsDismissed = true;
                        n.IsAnimatingOut = true;
                    }
                },
                new()
                {
                    Id = "decline",
                    Label = "Decline",
                    Icon = FontAwesomeIcon.Times,
                    Color = UIColors.Get("DimRed"),
                    IsDestructive = true,
                    OnClick = (n) =>
                    {
                        _logger.LogInformation("Pair request declined");
                        onDecline();
                        n.IsDismissed = true;
                        n.IsAnimatingOut = true;
                    }
                }
            }
        };
        
        if (notification.SoundEffectId.HasValue)
        {
            PlayNotificationSound(notification.SoundEffectId.Value);
        }
        
        Mediator.Publish(new LightlessNotificationMessage(notification));
    }
    public void ShowDownloadCompleteNotification(string fileName, int fileCount, Action? onOpenFolder = null)
    {
        var actions = new List<LightlessNotificationAction>();
        
        if (onOpenFolder != null)
        {
            actions.Add(new LightlessNotificationAction
            {
                Id = "open_folder",
                Label = "Open Folder",
                Icon = FontAwesomeIcon.FolderOpen,
                Color = UIColors.Get("LightlessBlue"),
                OnClick = (n) =>
                {
                    onOpenFolder();
                    n.IsDismissed = true;
                    n.IsAnimatingOut = true;
                }
            });
        }
        var notification = new LightlessNotification
        {
            Title = "Download Complete",
            Message = fileCount > 1 ? 
                $"Downloaded {fileCount} files successfully." : 
                $"Downloaded {fileName} successfully.",
            Type = NotificationType.Info,
            Duration = TimeSpan.FromSeconds(8),
            Actions = actions,
            SoundEffectId = NotificationSounds.DownloadComplete
        };
        
        if (notification.SoundEffectId.HasValue)
        {
            PlayNotificationSound(notification.SoundEffectId.Value);
        }
        
        Mediator.Publish(new LightlessNotificationMessage(notification));
    }
    public void ShowErrorNotification(string title, string message, Exception? exception = null, Action? onRetry = null, Action? onViewLog = null)
    {
        var actions = new List<LightlessNotificationAction>();
        if (onRetry != null)
        {
            actions.Add(new LightlessNotificationAction
            {
                Id = "retry",
                Label = "Retry",
                Icon = FontAwesomeIcon.Redo,
                Color = UIColors.Get("LightlessBlue"),
                OnClick = (n) =>
                {
                    onRetry();
                    n.IsDismissed = true;
                    n.IsAnimatingOut = true;
                }
            });
        }
        if (onViewLog != null)
        {
            actions.Add(new LightlessNotificationAction
            {
                Id = "view_log",
                Label = "View Log",
                Icon = FontAwesomeIcon.FileAlt,
                Color = UIColors.Get("LightlessYellow"),
                OnClick = (n) => onViewLog()
            });
        }
        var notification = new LightlessNotification
        {
            Title = title,
            Message = exception != null ? $"{message}\n\nError: {exception.Message}" : message,
            Type = NotificationType.Error,
            Duration = TimeSpan.FromSeconds(15),
            Actions = actions,
            SoundEffectId = NotificationSounds.Error
        };
        
        if (notification.SoundEffectId.HasValue)
        {
            PlayNotificationSound(notification.SoundEffectId.Value);
        }
        
        Mediator.Publish(new LightlessNotificationMessage(notification));
    }
    public void ShowPairDownloadNotification(List<(string playerName, float progress, string status)> downloadStatus, int queueWaiting = 0)
    {
        var userDownloads = downloadStatus.Where(x => x.playerName != "Pair Queue").ToList();
        
        var totalProgress = userDownloads.Count > 0 ? userDownloads.Average(x => x.progress) : 0f;
        var completedCount = userDownloads.Count(x => x.progress >= 1.0f);
        var totalCount = userDownloads.Count;
        
        var message = "";
        
        if (queueWaiting > 0)
        {
            message = $"Queue: {queueWaiting} waiting";
        }
        
        if (totalCount > 0)
        {
            var progressMessage = $"Progress: {completedCount}/{totalCount} completed";
            message = string.IsNullOrEmpty(message) ? progressMessage : $"{message}\n{progressMessage}";
        }
        
        if (userDownloads.Any(x => x.progress < 1.0f))
        {
            var maxNamesToShow = _configService.Current.MaxConcurrentPairApplications;
            var activeDownloads = userDownloads.Where(x => x.progress < 1.0f).Take(maxNamesToShow);
            var downloadLines = string.Join("\n", activeDownloads.Select(x => 
            {
                var statusText = x.status switch
                {
                    "downloading" => $"{x.progress:P0}",
                    "decompressing" => "decompressing",
                    "queued" => "queued",
                    "waiting" => "waiting for slot",
                    _ => x.status
                };
                return $"• {x.playerName}: {statusText}";
            }));
            
            message += string.IsNullOrEmpty(message) ? downloadLines : $"\n{downloadLines}";
        }
        
        var allDownloadsCompleted = userDownloads.All(x => x.progress >= 1.0f) && userDownloads.Any();
        
        var notification = new LightlessNotification
        {
            Id = "pair_download_progress",
            Title = "Downloading Pair Data",
            Message = message,
            Type = NotificationType.Info,
            Duration = TimeSpan.FromMinutes(5),
            ShowProgress = true,
            Progress = totalProgress
        };
        Mediator.Publish(new LightlessNotificationMessage(notification));
        if (allDownloadsCompleted)
        {
          DismissPairDownloadNotification();
        }
    }
    
    public void DismissPairDownloadNotification()
    {
        Mediator.Publish(new LightlessNotificationDismissMessage("pair_download_progress"));
    }
    
    private void PlayNotificationSound(uint soundEffectId)
    {
        try
        {
            try
            {
                UIGlobals.PlayChatSoundEffect(soundEffectId);
                _logger.LogDebug("Played notification sound effect {SoundId} via ChatGui", soundEffectId);
            }
            catch (Exception chatEx)
            {
                _logger.LogWarning(chatEx, "Failed to play sound via ChatGui for ID {SoundId}", soundEffectId);
            }
        }
        catch (Exception ex)
        {
            _logger.LogWarning(ex, "Failed to play notification sound effect {SoundId}", soundEffectId);
        }
    }
}