using AutoMapper;
using MediatR;
using mws.backend.dotnet.application.Common;
using TaskPriority = mws.backend.dotnet.domain.Tasks.TaskPriority;
using TaskStatus = mws.backend.dotnet.domain.Tasks.TaskStatus;

namespace mws.backend.dotnet.application.Tasks;

public record GetTasksQuery(Guid UserId, Guid ProjectId, TaskStatus? Status, TaskPriority? Priority, Guid? AssigneeId, int Page, int PageSize)
    : IRequest<PagedResult<TaskDto>>;

public class GetTasksHandler(IUnitOfWork uow, IMapper mapper) : IRequestHandler<GetTasksQuery, PagedResult<TaskDto>>
{
    public async Task<PagedResult<TaskDto>> Handle(GetTasksQuery query, CancellationToken ct)
    {
        await TaskAccess.EnsureMemberAccessAsync(uow, query.UserId, query.ProjectId, ct);

        var tasks = await uow.Tasks.GetForProjectAsync(query.ProjectId, query.Status, query.Priority, query.AssigneeId, query.Page, query.PageSize, ct);
        return new PagedResult<TaskDto>
        {
            Items = mapper.Map<List<TaskDto>>(tasks.Items),
            TotalCount = tasks.TotalCount,
            Page = tasks.Page,
            PageSize = tasks.PageSize,
        };
    }
}