using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;
using SeaHaven.Services.Exceptions;
using SeaHaven.Services.Interfaces;

namespace Api.SeaHavenIndustries.Controllers
{
    [Authorize]
    [ApiController]
    [Route("api/notifications")]
    public class NotificationsController : ControllerBase
    {
        private readonly INotificationFeedService _feedService;
        private readonly ISlaBreachAcknowledgementService _slaAcknowledgement;

        public NotificationsController(
            INotificationFeedService feedService,
            ISlaBreachAcknowledgementService slaAcknowledgement)
        {
            _feedService = feedService;
            _slaAcknowledgement = slaAcknowledgement;
        }

        /// <summary>
        /// Acknowledges the missed response deadline of one work order in the caller's Notification Center.
        /// 204 when recorded or already recorded; 404 when the caller's feed does not cover the work order;
        /// 409 when its deadline has not been missed.
        /// </summary>
        [HttpPost("sla/{workOrderId:int}/acknowledge")]
        public async Task<IActionResult> AcknowledgeSlaBreach(int workOrderId, CancellationToken cancellationToken)
        {
            try
            {
                var outcome = await _slaAcknowledgement.AcknowledgeAsync(User, workOrderId, cancellationToken);
                return outcome switch
                {
                    SlaBreachAcknowledgementOutcome.NotFound => NotFound(new
                    {
                        code = "NotFound",
                        message = "Work order not found."
                    }),
                    SlaBreachAcknowledgementOutcome.NotBreached => Conflict(new
                    {
                        code = "NotBreached",
                        message = "This work order has not missed its response deadline."
                    }),
                    _ => NoContent()
                };
            }
            catch (WorkOrderBoardValidationException ex) when (ex.Code == "Forbidden")
            {
                return StatusCode(StatusCodes.Status403Forbidden, new
                {
                    code = ex.Code,
                    message = ex.Message
                });
            }
        }

        [HttpGet]
        public async Task<IActionResult> GetFeed(CancellationToken cancellationToken)
        {
            try
            {
                return Ok(await _feedService.GetFeedAsync(User, cancellationToken));
            }
            catch (WorkOrderBoardValidationException ex) when (ex.Code == "Forbidden")
            {
                return StatusCode(StatusCodes.Status403Forbidden, new
                {
                    code = ex.Code,
                    message = ex.Message
                });
            }
        }
    }
}