using Microsoft.Extensions.Logging;
using EventFlow.Aggregates.ExecutionResults;
using MyTelegram.Schema;
using MyTelegram.Messenger.Services;
using MyTelegram.Messenger.Services.Interfaces;
using MyTelegram.Domain.Shared;
using MyTelegram.Domain.Shared.SuggestedPosts;
using EventFlow.Commands;

namespace MyTelegram.Messenger.Services.Impl;

/// <summary>
/// Interface for managing suggested post functionality
/// </summary>
public interface ISuggestedPostAppService
{
    Task<CreateSuggestedPostResult> CreateSuggestedPostAsync(CreateSuggestedPostRequest request);
    Task<SuggestedPost?> GetSuggestedPostAsync(string postId);
    Task<List<SuggestedPost>> GetChannelSuggestedPostsAsync(long channelId, SuggestedPostStatus? status = null, int offset = 0, int limit = 50);
    Task<List<SuggestedPost>> GetUserSuggestedPostsAsync(long userId, int offset = 0, int limit = 50);
    Task<bool> ApproveSuggestedPostAsync(string postId, long approvedBy, SuggestedPostPrice finalPrice);
    Task<bool> RejectSuggestedPostAsync(string postId, long rejectedBy, string reason);
    Task<bool> PublishSuggestedPostAsync(string postId, long publishedBy);
    Task<bool> ProcessPaymentAsync(string postId, long userId);
    Task<bool> RefundPaymentAsync(string postId, string reason);
    Task<SuggestedPostStatistics> GetPostStatisticsAsync(string postId, DateTime? from = null, DateTime? to = null);
    Task<ChannelSuggestedPostStatistics> GetChannelStatisticsAsync(long channelId, DateTime? from = null, DateTime? to = null);
    Task<bool> WithdrawSuggestedPostAsync(string postId, long withdrawnBy);
    Task<bool> UpdateSuggestedPostAsync(string postId, long updatedBy, string content, List<string> entities);
}

/// <summary>
/// Service for managing suggested post functionality
/// </summary>
public sealed class SuggestedPostAppService(ILogger<SuggestedPostAppService> logger, ICommandBus commandBus) : ISuggestedPostAppService
{
    private readonly ILogger<SuggestedPostAppService> _logger = logger;

    public Task<CreateSuggestedPostResult> CreateSuggestedPostAsync(CreateSuggestedPostRequest request)
    {
        _logger.LogInformation("CreateSuggestedPostAsync stub called");
        return Task.FromResult(new CreateSuggestedPostResult { Success = false, ErrorMessage = "Service not yet implemented" });
    }

    public Task<SuggestedPost?> GetSuggestedPostAsync(string postId)
    {
        _logger.LogInformation("GetSuggestedPostAsync stub called");
        return Task.FromResult<SuggestedPost?>(null);
    }

    public Task<List<SuggestedPost>> GetChannelSuggestedPostsAsync(long channelId, SuggestedPostStatus? status = null, int offset = 0, int limit = 50)
    {
        _logger.LogInformation("GetChannelSuggestedPostsAsync stub called");
        return Task.FromResult(new List<SuggestedPost>());
    }

    public Task<List<SuggestedPost>> GetUserSuggestedPostsAsync(long userId, int offset = 0, int limit = 50)
    {
        _logger.LogInformation("GetUserSuggestedPostsAsync stub called");
        return Task.FromResult(new List<SuggestedPost>());
    }

    public Task<bool> ApproveSuggestedPostAsync(string postId, long approvedBy, SuggestedPostPrice finalPrice)
    {
        _logger.LogInformation("ApproveSuggestedPostAsync stub called");
        return Task.FromResult(false);
    }

    public Task<bool> RejectSuggestedPostAsync(string postId, long rejectedBy, string reason)
    {
        _logger.LogInformation("RejectSuggestedPostAsync stub called");
        return Task.FromResult(false);
    }

    public Task<bool> PublishSuggestedPostAsync(string postId, long publishedBy)
    {
        _logger.LogInformation("PublishSuggestedPostAsync stub called");
        return Task.FromResult(false);
    }

    public Task<bool> ProcessPaymentAsync(string postId, long userId)
    {
        _logger.LogInformation("ProcessPaymentAsync stub called");
        return Task.FromResult(false);
    }

    public Task<bool> RefundPaymentAsync(string postId, string reason)
    {
        _logger.LogInformation("RefundPaymentAsync stub called");
        return Task.FromResult(false);
    }

    public Task<SuggestedPostStatistics> GetPostStatisticsAsync(string postId, DateTime? from = null, DateTime? to = null)
    {
        _logger.LogInformation("GetPostStatisticsAsync stub called");
        return Task.FromResult(new SuggestedPostStatistics());
    }

    public Task<ChannelSuggestedPostStatistics> GetChannelStatisticsAsync(long channelId, DateTime? from = null, DateTime? to = null)
    {
        _logger.LogInformation("GetChannelStatisticsAsync stub called");
        return Task.FromResult(new ChannelSuggestedPostStatistics());
    }

    public Task<bool> WithdrawSuggestedPostAsync(string postId, long withdrawnBy)
    {
        _logger.LogInformation("WithdrawSuggestedPostAsync stub called");
        return Task.FromResult(false);
    }

    public Task<bool> UpdateSuggestedPostAsync(string postId, long updatedBy, string content, List<string> entities)
    {
        _logger.LogInformation("UpdateSuggestedPostAsync stub called");
        return Task.FromResult(false);
    }

    private async Task SendSuggestedPostRefundedMessageAsync(string postId, long channelId, long amount, long refundedTo, string reason)
    {
        var command = new SendSuggestedPostRefundedCommand(MyTelegram.Domain.Aggregates.Channel.ChannelId.With(channelId.ToString()))
        {
            PostId = postId,
            Amount = amount,
            RefundedTo = refundedTo,
            Reason = reason,
            SentAt = DateTime.UtcNow
        };

        await commandBus.PublishAsync<MyTelegram.Domain.Aggregates.Channel.ChannelAggregate, MyTelegram.Domain.Aggregates.Channel.ChannelId, IExecutionResult>(command, CancellationToken.None);
    }

    private async Task<bool> IsChannelAdminAsync(long userId, long channelId)
    {
        // In a real implementation, this would check channel participant permissions
        return await Task.FromResult(true); // Placeholder
    }
}

// Helper classes
public class SuggestedPostPaymentResult
{
    public bool Success { get; set; }
    public string PaymentUrl { get; set; } = string.Empty;
}

// Query and command classes for suggested post operations
public class GetSuggestedPostStatisticsQuery : IQuery<SuggestedPostStatistics>
{
    public string PostId { get; set; }
    public DateTime PeriodStart { get; set; }
    public DateTime PeriodEnd { get; set; }
}

public class GetChannelSuggestedPostStatisticsQuery : IQuery<ChannelSuggestedPostStatistics>
{
    public long ChannelId { get; set; }
    public DateTime PeriodStart { get; set; }
    public DateTime PeriodEnd { get; set; }
}

public class CreateSuggestedPostCommand : Command<MyTelegram.Domain.Aggregates.Channel.ChannelAggregate, MyTelegram.Domain.Aggregates.Channel.ChannelId>
{
    public CreateSuggestedPostCommand(MyTelegram.Domain.Aggregates.Channel.ChannelId channelId) : base(channelId) { }
    
    public string PostId { get; set; } = string.Empty;
    public long ChannelId { get; set; }
    public long SuggestedBy { get; set; }
    public string Content { get; set; } = string.Empty;
    public SuggestedPostType Type { get; set; }
    public List<SuggestedPostMediaAttachment> MediaAttachments { get; set; } = new();
    public List<string> Entities { get; set; } = new();
    public SuggestedPostPrice Price { get; set; } = new();
    public DateTime CreatedAt { get; set; }
    public SuggestedPostStatus Status { get; set; }
    public bool Silent { get; set; }
    public bool DisableWebPagePreview { get; set; }
}

public class ApproveSuggestedPostCommand : Command<MyTelegram.Domain.Aggregates.Channel.ChannelAggregate, MyTelegram.Domain.Aggregates.Channel.ChannelId, IExecutionResult>
{
    public ApproveSuggestedPostCommand(MyTelegram.Domain.Aggregates.Channel.ChannelId channelId) : base(channelId) { }
    public string PostId { get; set; } = string.Empty;
    public long ApprovedBy { get; set; }
    public DateTime ApprovedAt { get; set; }
    public SuggestedPostPrice FinalPrice { get; set; } = new();
}

public class RejectSuggestedPostCommand : Command<MyTelegram.Domain.Aggregates.Channel.ChannelAggregate, MyTelegram.Domain.Aggregates.Channel.ChannelId, IExecutionResult>
{
    public RejectSuggestedPostCommand(MyTelegram.Domain.Aggregates.Channel.ChannelId channelId) : base(channelId) { }
    public string PostId { get; set; } = string.Empty;
    public long RejectedBy { get; set; }
    public string RejectionReason { get; set; } = string.Empty;
    public DateTime RejectedAt { get; set; }
}

public class PublishSuggestedPostCommand : Command<MyTelegram.Domain.Aggregates.Channel.ChannelAggregate, MyTelegram.Domain.Aggregates.Channel.ChannelId, IExecutionResult>
{
    public PublishSuggestedPostCommand(MyTelegram.Domain.Aggregates.Channel.ChannelId channelId) : base(channelId) { }
    public string PostId { get; set; } = string.Empty;
    public long PublishedBy { get; set; }
    public DateTime PublishedAt { get; set; }
}

public class MarkSuggestedPostPaidCommand : Command<MyTelegram.Domain.Aggregates.Channel.ChannelAggregate, MyTelegram.Domain.Aggregates.Channel.ChannelId, IExecutionResult>
{
    public MarkSuggestedPostPaidCommand(MyTelegram.Domain.Aggregates.Channel.ChannelId channelId) : base(channelId) { }
    public string PostId { get; set; } = string.Empty;
    public DateTime PaidAt { get; set; }
}

public class MarkSuggestedPostRefundedCommand : Command<MyTelegram.Domain.Aggregates.Channel.ChannelAggregate, MyTelegram.Domain.Aggregates.Channel.ChannelId, IExecutionResult>
{
    public MarkSuggestedPostRefundedCommand(MyTelegram.Domain.Aggregates.Channel.ChannelId channelId) : base(channelId) { }
    public string PostId { get; set; } = string.Empty;
    public string RefundReason { get; set; } = string.Empty;
    public DateTime RefundedAt { get; set; }
}

public class WithdrawSuggestedPostCommand : Command<MyTelegram.Domain.Aggregates.Channel.ChannelAggregate, MyTelegram.Domain.Aggregates.Channel.ChannelId, IExecutionResult>
{
    public WithdrawSuggestedPostCommand(MyTelegram.Domain.Aggregates.Channel.ChannelId channelId) : base(channelId) { }
    public string PostId { get; set; } = string.Empty;
    public long WithdrawnBy { get; set; }
    public DateTime WithdrawnAt { get; set; }
    public string TypeCommand { get; set; } = "CreateSuggestedPost";
}

public class UpdateSuggestedPostCommand : Command<MyTelegram.Domain.Aggregates.Channel.ChannelAggregate, MyTelegram.Domain.Aggregates.Channel.ChannelId, IExecutionResult>
{
    public UpdateSuggestedPostCommand(MyTelegram.Domain.Aggregates.Channel.ChannelId channelId) : base(channelId) { }
    public string PostId { get; set; } = string.Empty;
    public string Content { get; set; } = string.Empty;
    public List<string> Entities { get; set; } = new();
    public long UpdatedBy { get; set; }
    public DateTime UpdatedAt { get; set; }
}

public class SendSuggestedPostApprovedCommand : Command<MyTelegram.Domain.Aggregates.Channel.ChannelAggregate, MyTelegram.Domain.Aggregates.Channel.ChannelId, IExecutionResult>
{
    public SendSuggestedPostApprovedCommand(MyTelegram.Domain.Aggregates.Channel.ChannelId channelId) : base(channelId) { }
    public string PostId { get; set; } = string.Empty;
    public long ChannelId { get; set; }
    public long ApprovedBy { get; set; }
    public SuggestedPostPrice Price { get; set; } = new();
    public DateTime SentAt { get; set; }
}

public class SendSuggestedPostRejectedCommand : Command<MyTelegram.Domain.Aggregates.Channel.ChannelAggregate, MyTelegram.Domain.Aggregates.Channel.ChannelId, IExecutionResult>
{
    public SendSuggestedPostRejectedCommand(MyTelegram.Domain.Aggregates.Channel.ChannelId channelId) : base(channelId) { }
    public string PostId { get; set; } = string.Empty;
    public long ChannelId { get; set; }
    public long RejectedBy { get; set; }
    public string Reason { get; set; } = string.Empty;
    public DateTime SentAt { get; set; }
}

public class SendSuggestedPostPaidCommand : Command<MyTelegram.Domain.Aggregates.Channel.ChannelAggregate, MyTelegram.Domain.Aggregates.Channel.ChannelId, IExecutionResult>
{
    public SendSuggestedPostPaidCommand(MyTelegram.Domain.Aggregates.Channel.ChannelId channelId) : base(channelId) { }
    
    public string PostId { get; set; } = string.Empty;
    public long Amount { get; set; }
    public long PaidBy { get; set; }
    public DateTime SentAt { get; set; }
}

public class SendSuggestedPostRefundedCommand : Command<MyTelegram.Domain.Aggregates.Channel.ChannelAggregate, MyTelegram.Domain.Aggregates.Channel.ChannelId, IExecutionResult>
{
    public SendSuggestedPostRefundedCommand(MyTelegram.Domain.Aggregates.Channel.ChannelId channelId) : base(channelId) { }
    
    public string PostId { get; set; } = string.Empty;
    public long Amount { get; set; }
    public long RefundedTo { get; set; }
    public string Reason { get; set; } = string.Empty;
    public DateTime SentAt { get; set; }
}
