using FastEndpoints;
using MediatR;
using Microsoft.AspNetCore.Mvc;
using Fengling.RiskControl.Application.Services;
using Fengling.RiskControl.Domain.Aggregates.LotteryActivities;

namespace Fengling.RiskControl.Web.Endpoints;

public class ParticipateLotteryEndpoint : Endpoint<ParticipateLotteryRequest, LotteryParticipationResult>
{
    private readonly IMediator _mediator;

    public ParticipateLotteryEndpoint(IMediator mediator)
    {
        _mediator = mediator;
    }

    public override void Configure()
    {
        Post("/api/v1/lottery/participate");
        Summary(s => {
            s.Summary = "参与抽奖";
            s.Description = "会员参与抽奖活动，系统自动进行风险评估";
        });
    }

    public override async Task HandleAsync(ParticipateLotteryRequest req, CancellationToken ct)
    {
        var result = await _mediator.Send(new LotteryParticipationRequest
        {
            MemberId = req.MemberId,
            ActivityType = req.ActivityType,
            StakePoints = req.StakePoints,
            IpAddress = HttpContext.Connection.RemoteIpAddress?.ToString() ?? "unknown",
            DeviceId = HttpContext.Request.Headers["X-Device-ID"].FirstOrDefault()
        }, ct);

        Response = (LotteryParticipationResult)result!;
    }
}

public class ParticipateLotteryRequest
{
    public long MemberId { get; set; }
    public string ActivityType { get; set; } = string.Empty;
    public int StakePoints { get; set; }
}

public class GetLotteryHistoryEndpoint : Endpoint<GetLotteryHistoryRequest, IEnumerable<LotteryActivityResponse>>
{
    private readonly IMediator _mediator;

    public GetLotteryHistoryEndpoint(IMediator mediator)
    {
        _mediator = mediator;
    }

    public override void Configure()
    {
        Get("/api/v1/lottery/history/{MemberId}");
    }

    public override async Task HandleAsync(GetLotteryHistoryRequest req, CancellationToken ct)
    {
        var activities = await _mediator.Send(new GetMemberLotteriesQuery { MemberId = req.MemberId }, ct);
        Response = activities.Select(a => new LotteryActivityResponse
        {
            Id = a.Id,
            ActivityType = a.ActivityType,
            StakePoints = a.StakePoints,
            WinAmount = a.WinAmount,
            Status = a.Status.ToString(),
            CreatedAt = a.CreatedAt
        });
    }
}

public class GetLotteryHistoryRequest
{
    [Microsoft.AspNetCore.Mvc.FromRoute]
    public long MemberId { get; set; }
}

public record GetMemberLotteriesQuery : IRequest<IEnumerable<LotteryActivityResponse>>
{
    public long MemberId { get; init; }
}

public record LotteryActivityResponse
{
    public long Id { get; init; }
    public string ActivityType { get; init; } = string.Empty;
    public int StakePoints { get; init; }
    public int? WinAmount { get; init; }
    public string Status { get; init; } = string.Empty;
    public DateTime CreatedAt { get; init; }
}