using FastEndpoints;
using MediatR;
using Microsoft.AspNetCore.Mvc;
using Fengling.RiskControl.Domain.Aggregates.RiskRules;

namespace Fengling.RiskControl.Web.Endpoints;

public class CreateRiskRuleEndpoint : Endpoint<CreateRiskRuleRequest, RiskRuleResponse>
{
    private readonly IMediator _mediator;

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

    public override void Configure()
    {
        Post("/api/v1/risk/rules");
        Roles("Admin");
    }

    public override async Task HandleAsync(CreateRiskRuleRequest req, CancellationToken ct)
    {
        var rule = await _mediator.Send(new CreateRiskRuleCommand
        {
            Name = req.Name,
            Description = req.Description,
            RuleType = (RiskRuleType)req.RuleType,
            Action = (RiskRuleAction)req.Action,
            ConfigJson = req.ConfigJson,
            Priority = req.Priority
        }, ct);

        Response = new RiskRuleResponse
        {
            Id = rule.Id,
            Name = rule.Name,
            Description = rule.Description,
            RuleType = ((int)rule.RuleType).ToString(),
            Action = ((int)rule.Action).ToString(),
            IsActive = rule.IsActive,
            CreatedAt = rule.CreatedAt
        };
    }
}

public class CreateRiskRuleRequest
{
    [Microsoft.AspNetCore.Mvc.FromBody]
    public string Name { get; set; } = string.Empty;
    [Microsoft.AspNetCore.Mvc.FromBody]
    public string Description { get; set; } = string.Empty;
    [Microsoft.AspNetCore.Mvc.FromBody]
    public int RuleType { get; set; }
    [Microsoft.AspNetCore.Mvc.FromBody]
    public int Action { get; set; }
    [Microsoft.AspNetCore.Mvc.FromBody]
    public string ConfigJson { get; set; } = string.Empty;
    [Microsoft.AspNetCore.Mvc.FromBody]
    public int Priority { get; set; }
}

public record CreateRiskRuleCommand : IRequest<RiskRule>
{
    public string Name { get; init; } = string.Empty;
    public string Description { get; init; } = string.Empty;
    public RiskRuleType RuleType { get; init; }
    public RiskRuleAction Action { get; init; }
    public string ConfigJson { get; init; } = string.Empty;
    public int Priority { get; init; }
}

public record RiskRuleResponse
{
    public long Id { get; init; }
    public string Name { get; init; } = string.Empty;
    public string Description { get; init; } = string.Empty;
    public string RuleType { get; init; } = string.Empty;
    public string Action { get; init; } = string.Empty;
    public bool IsActive { get; init; }
    public DateTime CreatedAt { get; init; }
}