using FastEndpoints;
using GB5Shared.DTO.Framework.Login;
using GB5Shared.DTO.Framework.ResponseStandard;
using GB5Shared.FastEndPoint;
using WiBLL.EmployeeLeaveLink;
using static GB5Shared.GB5Constant.Constant;

namespace WiSL.EndPoints.EmployeeLeaveLink;

// Generic, WI-context-free: any module can POST an EmployeeIds list + date and get back who's
// on approved leave that day — not folded into a WI-specific roster call so a non-WI consumer
// (e.g. a future Production Monitoring or HR/IR feature) can use it without WI's roster context.
public class GetApprovedLeaveEmployeeIds : BaseEndpoint<GetApprovedLeaveEmployeeIds.Parameters, ResponseStandardDTO<object>>
{
    private readonly IEmployeeLeaveLinkBLL _bll;

    public GetApprovedLeaveEmployeeIds(IEmployeeLeaveLinkBLL bll) => _bll = bll;

    public override void Configure()
    {
        Post("/EmployeeLeaveLink/GetApprovedLeaveEmployeeIds");
        AllowAnonymous();
    }

    public record Request(List<int> EmployeeIds, DateOnly LeaveDate);

    public record Parameters(
        [property: FromHeader] string  Login,
        [property: FromBody]   Request Request
    );

    protected override string? GetCacheKey(Parameters req, LoginDTO login) => null;

    protected override async Task<ResponseStandardDTO<object>> ExecuteAsync(Parameters req, LoginDTO login, CancellationToken ct)
    {
        try
        {
            var result = await _bll.GetApprovedLeaveEmployeeIdsAsync(req.Request.EmployeeIds, req.Request.LeaveDate, login, ct);
            return await GB5Shared.ResponseStandard.Response.CreateSuccessResponse(result, CacheKeyLevel.NOT_REQUIRED, login);
        }
        catch (Exception ex)
        {
            return await GB5Shared.ResponseStandard.Response.CreateExceptionError<string>(ex, CacheKeyLevel.NOT_REQUIRED, login, ex.Message, 500);
        }
    }
}