using System.Threading.Tasks;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.Routing;
using Microsoft.AspNetCore.Authorization;
using Microsoft.Extensions.Logging;
using AyaNova.Models;
using AyaNova.Api.ControllerHelpers;
using AyaNova.Biz;



namespace AyaNova.Api.Controllers
{
    [ApiController]
    [Asp.Versioning.ApiVersion("8.0")]
    [Route("api/v{version:apiVersion}/review")]
    [Produces("application/json")]
    [Authorize]
    public class ReviewController : ControllerBase
    {
        private readonly AyContext ct;
        private readonly ILogger<ReviewController> log;
        private readonly ApiServerState serverState;

        /// <summary>
        /// ctor
        /// </summary>
        /// <param name="dbcontext"></param>
        /// <param name="logger"></param>
        /// <param name="apiServerState"></param>  
        public ReviewController(AyContext dbcontext, ILogger<ReviewController> logger, ApiServerState apiServerState)
        {
            ct = dbcontext;
            log = logger;
            serverState = apiServerState;
        }

        /// <summary>
        /// Create Review
        /// </summary>
        /// <param name="newObject"></param>
        /// <param name="apiVersion">From route path</param>
        /// <returns></returns>
        [HttpPost]
        public async Task<IActionResult> PostReview([FromBody] Review newObject, Asp.Versioning.ApiVersion apiVersion)
        {
            if (!serverState.IsOpen)
                return StatusCode(503, new ApiErrorResponse(serverState.ApiErrorCode, null, serverState.Reason));
            ReviewBiz biz = ReviewBiz.GetBiz(ct, HttpContext);
            if (!Authorized.HasCreateRole(HttpContext.Items, biz.BizType))
                return StatusCode(403, new ApiNotAuthorizedResponse());
            if (!ModelState.IsValid)
                return BadRequest(new ApiErrorResponse(ModelState));
            Review o = await biz.CreateAsync(newObject);
            if (o == null)
                return BadRequest(new ApiErrorResponse(biz.Errors));
            else
                return CreatedAtAction(nameof(ReviewController.GetReview), new { id = o.Id, version = apiVersion.ToString() }, new ApiCreatedResponse(o));
        }


        /// <summary>
        /// Get Review
        /// </summary>
        /// <param name="id"></param>
        /// <returns>Review</returns>
        [HttpGet("{id}")]
        public async Task<IActionResult> GetReview([FromRoute] long id)
        {
            if (!serverState.IsOpen)
                return StatusCode(503, new ApiErrorResponse(serverState.ApiErrorCode, null, serverState.Reason));
            ReviewBiz biz = ReviewBiz.GetBiz(ct, HttpContext);
            if (!Authorized.HasReadFullRole(HttpContext.Items, biz.BizType))
                return StatusCode(403, new ApiNotAuthorizedResponse());
            if (!ModelState.IsValid)
                return BadRequest(new ApiErrorResponse(ModelState));
            var o = await biz.GetAsync(id);
            if (o == null) return NotFound(new ApiErrorResponse(ApiErrorCode.NOT_FOUND));
            return Ok(ApiOkResponse.Response(o));
        }

        /// <summary>
        /// Update Review
        /// </summary>        
        /// <param name="updatedObject"></param>
        /// <returns></returns>
        [HttpPut]
        public async Task<IActionResult> PutReview([FromBody] Review updatedObject)
        {
            if (!serverState.IsOpen)
                return StatusCode(503, new ApiErrorResponse(serverState.ApiErrorCode, null, serverState.Reason));
            if (!ModelState.IsValid)
                return BadRequest(new ApiErrorResponse(ModelState));
            ReviewBiz biz = ReviewBiz.GetBiz(ct, HttpContext);
            if (!Authorized.HasModifyRole(HttpContext.Items, biz.BizType))
                return StatusCode(403, new ApiNotAuthorizedResponse());
            var o = await biz.PutAsync(updatedObject);
            if (o == null)
            {
                if (biz.Errors.Exists(z => z.Code == ApiErrorCode.CONCURRENCY_CONFLICT))
                    return StatusCode(409, new ApiErrorResponse(biz.Errors));
                else
                    return BadRequest(new ApiErrorResponse(biz.Errors));
            }
            return Ok(ApiOkResponse.Response(new { Concurrency = o.Concurrency, ReviewObjectViz=o.ReviewObjectViz })); ;
        }

        /// <summary>
        /// Delete Review
        /// </summary>
        /// <param name="id"></param>
        /// <returns>NoContent</returns>
        [HttpDelete("{id}")]
        public async Task<IActionResult> DeleteReview([FromRoute] long id)
        {
            if (!serverState.IsOpen)
                return StatusCode(503, new ApiErrorResponse(serverState.ApiErrorCode, null, serverState.Reason));
            if (!ModelState.IsValid)
                return BadRequest(new ApiErrorResponse(ModelState));
            ReviewBiz biz = ReviewBiz.GetBiz(ct, HttpContext);
            if (!Authorized.HasDeleteRole(HttpContext.Items, biz.BizType))
                return StatusCode(403, new ApiNotAuthorizedResponse());
            if (!await biz.DeleteAsync(id))
                return BadRequest(new ApiErrorResponse(biz.Errors));
            return NoContent();
        }


        /// <summary>
        /// Get Review schedule "more" info
        /// </summary>
        /// <param name="id"></param>
        /// <returns>Information to display in schedule when selected for more info</returns>
        [HttpGet("sched-info/{id}")]
        public async Task<IActionResult> GetScheduleInfoView([FromRoute] long id)
        {
            if (!serverState.IsOpen)
                return StatusCode(503, new ApiErrorResponse(serverState.ApiErrorCode, null, serverState.Reason));
            ReviewBiz biz = ReviewBiz.GetBiz(ct, HttpContext);
            if (!Authorized.HasReadFullRole(HttpContext.Items, biz.BizType))
                return StatusCode(403, new ApiNotAuthorizedResponse());
            if (!ModelState.IsValid)
                return BadRequest(new ApiErrorResponse(ModelState));
            var o = await biz.GetAsync(id);
            if (o == null)
                return BadRequest(new ApiErrorResponse(biz.Errors));
            await biz.PopulateVizFields(o);
            return Ok(ApiOkResponse.Response(new
            {
                o.Name,
                o.Notes,
                o.ReviewDate,
                o.CompletedDate,
                o.CompletionNotes,
                o.OverDue,
                o.ReviewObjectViz,
                o.AType,
                o.ObjectId
            }));
        }


        //------------


    }//eoc
}//eons