using BMA.EHR.Application.Repositories;
using BMA.EHR.Domain.Common;
using BMA.EHR.Domain.Models.Placement;
using BMA.EHR.Domain.Shared;
using BMA.EHR.Infrastructure.Persistence;
using BMA.EHR.Placement.Service.Requests;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;
using Microsoft.EntityFrameworkCore;
using Swashbuckle.AspNetCore.Annotations;
using System.Security.Claims;

namespace BMA.EHR.Placement.Service.Controllers
{
    [Route("api/v{version:apiVersion}/placement/transfer")]
    [ApiVersion("1.0")]
    [ApiController]
    [Produces("application/json")]
    [Authorize]
    [SwaggerTag("ระบบคำขอโอน")]
    public class PlacementTransferController : BaseController
    {
        private readonly PlacementRepository _repository;
        private readonly ApplicationDBContext _context;
        private readonly MinIOService _documentService;
        private readonly IHttpContextAccessor _httpContextAccessor;

        public PlacementTransferController(PlacementRepository repository,
                                   ApplicationDBContext context,
                                   MinIOService documentService,
                                   IHttpContextAccessor httpContextAccessor)
        {
            _repository = repository;
            _context = context;
            _documentService = documentService;
            _httpContextAccessor = httpContextAccessor;
        }

        #region " Properties "

        private string? UserId => _httpContextAccessor?.HttpContext?.User?.FindFirst(ClaimTypes.NameIdentifier)?.Value;

        private string? FullName => _httpContextAccessor?.HttpContext?.User?.FindFirst("name")?.Value;

        private bool? PlacementAdmin => _httpContextAccessor?.HttpContext?.User?.IsInRole("placement1");

        #endregion

        /// <summary>
        /// list รายการคำขอโอนของ User
        /// </summary>
        /// <returns></returns>
        /// <response code="200"></response>
        /// <response code="400">ค่าตัวแปรที่ส่งมาไม่ถูกต้อง</response>
        /// <response code="401">ไม่ได้ Login เข้าระบบ</response>
        /// <response code="500">เมื่อเกิดข้อผิดพลาดในการทำงาน</response>
        [HttpGet("user")]
        public async Task<ActionResult<ResponseObject>> GetListByProfile()
        {
            var profile = await _context.Profiles
                            .FirstOrDefaultAsync(x => x.KeycloakId == Guid.Parse(UserId));
            if (profile == null)
                return Error(GlobalMessages.DataNotFound, 404);

            var placementTransfers = await _context.PlacementTransfers.AsQueryable()
                        .Where(x => x.Profile == profile)
                        .OrderByDescending(x => x.CreatedAt)
                        .Select(p => new
                        {
                            p.Id,
                            position = p.Profile.ProfileType.Trim().ToUpper().Contains("OFFICER") ? (p.Profile.Position == null ? null : p.Profile.Position.Name) : p.Profile.PositionEmployeePosition,
                            posNo = p.Profile.ProfileType.Trim().ToUpper().Contains("OFFICER") ? (p.Profile.PosNo == null ? null : p.Profile.PosNo.Name) : p.Profile.PosNoEmployee,
                            positionLevel = p.Profile.ProfileType.Trim().ToUpper().Contains("OFFICER") ? (p.Profile.PositionLevel == null ? null : p.Profile.PositionLevel.Name) : p.Profile.PositionEmployeeLevel,
                            // salary = p.Profile.Salaries.Count() == 0 ? null : p.Profile.Salaries.OrderByDescending(x => x.Order).FirstOrDefault().PositionSalaryAmount,
                            p.CreatedAt,
                            p.Organization,
                            p.Reason,
                            p.Status,
                            p.Date,
                            salary = p.AmountOld,
                            PositionTypeOld = p.PositionTypeOld == null ? null : p.PositionTypeOld.Name,
                            PositionLevelOld = p.PositionLevelOld == null ? null : p.PositionLevelOld.Name,
                            PositionNumberOld = p.PositionNumberOld == null ? null : p.PositionNumberOld.Name,
                            PositionTypeOldId = p.PositionTypeOld == null ? Guid.Parse("00000000-0000-0000-0000-000000000000") : p.PositionTypeOld.Id,
                            PositionLevelOldId = p.PositionLevelOld == null ? Guid.Parse("00000000-0000-0000-0000-000000000000") : p.PositionLevelOld.Id,
                            PositionNumberOldId = p.PositionNumberOld == null ? Guid.Parse("00000000-0000-0000-0000-000000000000") : p.PositionNumberOld.Id,
                            OrganizationPositionOldId = p.OrganizationPositionOld == null ? Guid.Parse("00000000-0000-0000-0000-000000000000") : p.OrganizationPositionOld.Id,
                            p.IsActive,
                        })
                        .ToListAsync();

            return Success(placementTransfers);
        }

        /// <summary>
        /// list รายการคำขอโอนของ Admin
        /// </summary>
        /// <returns></returns>
        /// <response code="200"></response>
        /// <response code="400">ค่าตัวแปรที่ส่งมาไม่ถูกต้อง</response>
        /// <response code="401">ไม่ได้ Login เข้าระบบ</response>
        /// <response code="500">เมื่อเกิดข้อผิดพลาดในการทำงาน</response>
        [HttpGet()]
        public async Task<ActionResult<ResponseObject>> GetListByAdmin()
        {

            var placementTransfers = await _context.PlacementTransfers.AsQueryable()
                        .OrderByDescending(x => x.CreatedAt)
                        .Select(p => new
                        {
                            p.Id,
                            position = p.Profile.ProfileType.Trim().ToUpper().Contains("OFFICER") ? (p.Profile.Position == null ? null : p.Profile.Position.Name) : p.Profile.PositionEmployeePosition,
                            posNo = p.Profile.ProfileType.Trim().ToUpper().Contains("OFFICER") ? (p.Profile.PosNo == null ? null : p.Profile.PosNo.Name) : p.Profile.PosNoEmployee,
                            positionLevel = p.Profile.ProfileType.Trim().ToUpper().Contains("OFFICER") ? (p.Profile.PositionLevel == null ? null : p.Profile.PositionLevel.Name) : p.Profile.PositionEmployeeLevel,
                            // salary = p.Profile.Salaries.Count() == 0 ? null : p.Profile.Salaries.OrderByDescending(x => x.Order).FirstOrDefault().PositionSalaryAmount,
                            p.CreatedAt,
                            p.Organization,
                            p.Reason,
                            p.Status,
                            p.Date,
                            salary = p.AmountOld,
                            PositionTypeOld = p.PositionTypeOld == null ? null : p.PositionTypeOld.Name,
                            PositionLevelOld = p.PositionLevelOld == null ? null : p.PositionLevelOld.Name,
                            PositionNumberOld = p.PositionNumberOld == null ? null : p.PositionNumberOld.Name,
                            PositionTypeOldId = p.PositionTypeOld == null ? Guid.Parse("00000000-0000-0000-0000-000000000000") : p.PositionTypeOld.Id,
                            PositionLevelOldId = p.PositionLevelOld == null ? Guid.Parse("00000000-0000-0000-0000-000000000000") : p.PositionLevelOld.Id,
                            PositionNumberOldId = p.PositionNumberOld == null ? Guid.Parse("00000000-0000-0000-0000-000000000000") : p.PositionNumberOld.Id,
                            OrganizationPositionOldId = p.OrganizationPositionOld == null ? Guid.Parse("00000000-0000-0000-0000-000000000000") : p.OrganizationPositionOld.Id,
                            p.IsActive,
                        })
                        .ToListAsync();
            if (PlacementAdmin == true)
                placementTransfers.Where(x => x.Status.Trim().ToUpper().Contains("DONE"));

            return Success(placementTransfers);
        }

        /// <summary>
        /// get รายละเอียดคำขอโอน
        /// </summary>
        /// <param name="id">Id คำขอโอน</param>
        /// <returns></returns>
        /// <response code="200"></response>
        /// <response code="400">ค่าตัวแปรที่ส่งมาไม่ถูกต้อง</response>
        /// <response code="401">ไม่ได้ Login เข้าระบบ</response>
        /// <response code="500">เมื่อเกิดข้อผิดพลาดในการทำงาน</response>
        [HttpGet("user/{id:length(36)}")]
        public async Task<ActionResult<ResponseObject>> GetDetailByUser(Guid id)
        {
            var data = await _context.PlacementTransfers.AsQueryable()
                        .Where(x => x.Id == id)
                        .Where(x => x.Profile != null)
                        .Select(p => new
                        {
                            p.Id,
                            position = p.Profile.ProfileType.Trim().ToUpper().Contains("OFFICER") ? (p.Profile.Position == null ? null : p.Profile.Position.Name) : p.Profile.PositionEmployeePosition,
                            posNo = p.Profile.ProfileType.Trim().ToUpper().Contains("OFFICER") ? (p.Profile.PosNo == null ? null : p.Profile.PosNo.Name) : p.Profile.PosNoEmployee,
                            positionLevel = p.Profile.ProfileType.Trim().ToUpper().Contains("OFFICER") ? (p.Profile.PositionLevel == null ? null : p.Profile.PositionLevel.Name) : p.Profile.PositionEmployeeLevel,
                            organizationOrganization = p.Profile.OrganizationOrganization,
                            p.Reason,
                            p.Status,
                            p.Organization,
                            p.Date,
                            salary = p.AmountOld,
                            p.CreatedAt,
                            PositionTypeOld = p.PositionTypeOld == null ? null : p.PositionTypeOld.Name,
                            PositionLevelOld = p.PositionLevelOld == null ? null : p.PositionLevelOld.Name,
                            PositionNumberOld = p.PositionNumberOld == null ? null : p.PositionNumberOld.Name,
                            PositionTypeOldId = p.PositionTypeOld == null ? Guid.Parse("00000000-0000-0000-0000-000000000000") : p.PositionTypeOld.Id,
                            PositionLevelOldId = p.PositionLevelOld == null ? Guid.Parse("00000000-0000-0000-0000-000000000000") : p.PositionLevelOld.Id,
                            PositionNumberOldId = p.PositionNumberOld == null ? Guid.Parse("00000000-0000-0000-0000-000000000000") : p.PositionNumberOld.Id,
                            OrganizationPositionOldId = p.OrganizationPositionOld == null ? Guid.Parse("00000000-0000-0000-0000-000000000000") : p.OrganizationPositionOld.Id,
                            PlacementTransferDocs = p.PlacementTransferDocs.Where(d => d.Document != null).Select(d => new { d.Document.Id, d.Document.FileName }),
                        })
                       .FirstOrDefaultAsync();
            if (data == null)
                return Error(GlobalMessages.DataNotFound, 404);

            var placementTransferDocs = new List<dynamic>();
            foreach (var doc in data.PlacementTransferDocs)
            {
                var _doc = new
                {
                    FileName = doc.FileName,
                    PathName = await _documentService.ImagesPath(doc.Id)
                };
                placementTransferDocs.Add(_doc);
            }
            var _data = new
            {
                Id = data.Id,
                Reason = data.Reason,
                Status = data.Status,
                Organization = data.Organization,
                CreatedAt = data.CreatedAt,
                Date = data.Date,
                salary = data.salary,
                PositionTypeOld = data.PositionTypeOld,
                PositionLevelOld = data.PositionLevelOld,
                PositionNumberOld = data.PositionNumberOld,
                PositionTypeOldId = data.PositionTypeOldId,
                PositionLevelOldId = data.PositionLevelOldId,
                PositionNumberOldId = data.PositionNumberOldId,
                OrganizationPositionOldId = data.OrganizationPositionOldId,
                Docs = placementTransferDocs,
            };

            return Success(_data);
        }

        /// <summary>
        /// สร้างคำขอโอน
        /// </summary>
        /// <returns></returns>
        /// <response code="200"></response>
        /// <response code="400">ค่าตัวแปรที่ส่งมาไม่ถูกต้อง</response>
        /// <response code="401">ไม่ได้ Login เข้าระบบ</response>
        /// <response code="500">เมื่อเกิดข้อผิดพลาดในการทำงาน</response>
        [HttpPost()]
        public async Task<ActionResult<ResponseObject>> Post([FromForm] PlacementTransferRequest req)
        {
            var profile = await _context.Profiles
                            .Include(x => x.PositionLevel)
                            .Include(x => x.PositionType)
                            .Include(x => x.PosNo)
                            .Include(x => x.Salaries)
                            .FirstOrDefaultAsync(x => x.KeycloakId == Guid.Parse(UserId));
            if (profile == null)
                return Error(GlobalMessages.DataNotFound, 404);

            var placementTransfer = new PlacementTransfer
            {
                Profile = profile,
                Organization = Request.Form.ContainsKey("Organization") ? Request.Form["Organization"] : "",
                Reason = Request.Form.ContainsKey("Reason") ? Request.Form["Reason"] : "",
                Date = req.Date,
                AmountOld = profile.Salaries.Count() == 0 ? null : profile.Salaries.OrderByDescending(x => x.Order).FirstOrDefault().PositionSalaryAmount,
                PositionLevelOld = profile.PositionLevel,
                PositionTypeOld = profile.PositionType,
                PositionNumberOld = profile.PosNo,
                OrganizationPositionOld = await _context.OrganizationPositions.FirstOrDefaultAsync(x => x.PositionNumber == profile.PosNo),
                Status = "PENDING",
                CreatedUserId = FullName ?? "",
                CreatedFullName = UserId ?? "System Administrator",
                CreatedAt = DateTime.Now,
                LastUpdateFullName = FullName ?? "System Administrator",
                LastUpdateUserId = UserId ?? "",
                LastUpdatedAt = DateTime.Now,
            };
            await _context.PlacementTransfers.AddAsync(placementTransfer);
            await _context.SaveChangesAsync();
            if (Request.Form.Files != null && Request.Form.Files.Count != 0)
            {
                foreach (var file in Request.Form.Files)
                {
                    var fileExtension = Path.GetExtension(file.FileName);

                    var doc = await _documentService.UploadFileAsync(file, file.FileName);
                    var _doc = await _context.Documents.AsQueryable()
                                        .FirstOrDefaultAsync(x => x.Id == doc.Id);
                    if (_doc != null)
                    {
                        var placementTransferDoc = new PlacementTransferDoc
                        {
                            PlacementTransfer = placementTransfer,
                            Document = _doc,
                            CreatedUserId = FullName ?? "",
                            CreatedFullName = UserId ?? "System Administrator",
                            CreatedAt = DateTime.Now,
                            LastUpdateFullName = FullName ?? "System Administrator",
                            LastUpdateUserId = UserId ?? "",
                            LastUpdatedAt = DateTime.Now,
                        };
                        await _context.PlacementTransferDocs.AddAsync(placementTransferDoc);

                    }
                }
            }
            await _context.SaveChangesAsync();

            return Success();
        }

        /// <summary>
        /// แก้ไขคำขอโอน
        /// </summary>
        /// <returns></returns>
        /// <response code="200"></response>
        /// <response code="400">ค่าตัวแปรที่ส่งมาไม่ถูกต้อง</response>
        /// <response code="401">ไม่ได้ Login เข้าระบบ</response>
        /// <response code="500">เมื่อเกิดข้อผิดพลาดในการทำงาน</response>
        [HttpPut("{id:length(36)}")]
        public async Task<ActionResult<ResponseObject>> Put([FromBody] PlacementTransferEditRequest req, Guid id)
        {
            var uppdated = await _context.PlacementTransfers
                            .FirstOrDefaultAsync(x => x.Id == id);
            if (uppdated == null)
                return Error(GlobalMessages.PlacementTransferNotFound, 404);

            if (req.PosNoOld != null)
            {
                var save_posNo = await _context.PositionNumbers.FindAsync(req.PosNoOld);
                if (save_posNo == null)
                    return Error(GlobalMessages.PositionPosNoNotFound, 404);
                uppdated.PositionNumberOld = save_posNo;

                var save_orgPosition = await _context.OrganizationPositions.FirstOrDefaultAsync(x => x.PositionNumber == save_posNo);
                if (save_orgPosition == null)
                    return Error(GlobalMessages.PositionPosNoNotFound, 404);
                uppdated.OrganizationPositionOld = save_orgPosition;
            }
            if (req.PositionLevelOld != null)
            {
                var save = await _context.PositionLevels.FindAsync(req.PositionLevelOld);
                if (save == null)
                    return Error(GlobalMessages.PositionLevelNotFound, 404);
                uppdated.PositionLevelOld = save;
            }
            if (req.PositionTypeOld != null)
            {
                var save = await _context.PositionTypes.FindAsync(req.PositionTypeOld);
                if (save == null)
                    return Error(GlobalMessages.PositionTypeNotFound, 404);
                uppdated.PositionTypeOld = save;
            }

            uppdated.AmountOld = req.AmountOld;
            uppdated.Organization = req.Organization;
            uppdated.Reason = req.Reason;
            uppdated.Date = req.Date;
            uppdated.LastUpdateFullName = FullName ?? "System Administrator";
            uppdated.LastUpdateUserId = UserId ?? "";
            uppdated.LastUpdatedAt = DateTime.Now;
            await _context.SaveChangesAsync();

            return Success();
        }

        /// <summary>
        /// อนุมัติคำขอโอน
        /// </summary>
        /// <param name="id">Id คำขอโอน</param>
        /// <returns></returns>
        /// <response code="200"></response>
        /// <response code="400">ค่าตัวแปรที่ส่งมาไม่ถูกต้อง</response>
        /// <response code="401">ไม่ได้ Login เข้าระบบ</response>
        /// <response code="500">เมื่อเกิดข้อผิดพลาดในการทำงาน</response>
        [HttpGet("confirm/{id:length(36)}")]
        public async Task<ActionResult<ResponseObject>> AdminConfirm(Guid id)
        {
            var uppdated = await _context.PlacementTransfers
                            .FirstOrDefaultAsync(x => x.Id == id);
            if (uppdated == null)
                return Error(GlobalMessages.PlacementTransferNotFound, 404);

            uppdated.Status = "DONE";
            uppdated.LastUpdateFullName = FullName ?? "System Administrator";
            uppdated.LastUpdateUserId = UserId ?? "";
            uppdated.LastUpdatedAt = DateTime.Now;
            await _context.SaveChangesAsync();

            return Success();
        }

        /// <summary>
        /// ลบคำขอโอน
        /// </summary>
        /// <param name="id">Id คำขอโอน</param>
        /// <returns></returns>
        /// <response code="200"></response>
        /// <response code="400">ค่าตัวแปรที่ส่งมาไม่ถูกต้อง</response>
        /// <response code="401">ไม่ได้ Login เข้าระบบ</response>
        /// <response code="500">เมื่อเกิดข้อผิดพลาดในการทำงาน</response>
        [HttpDelete("{id:length(36)}")]
        public async Task<ActionResult<ResponseObject>> Delete(Guid id)
        {
            var deleted = await _context.PlacementTransfers.AsQueryable()
                            .Include(x => x.PlacementTransferDocs)
                            .ThenInclude(x => x.Document)
                            .FirstOrDefaultAsync(x => x.Id == id);
            if (deleted == null)
                return NotFound();
            var placementTransferDocs = new List<dynamic>();
            foreach (var doc in deleted.PlacementTransferDocs)
            {
                if (doc.Document != null)
                    placementTransferDocs.Add(doc.Document.Id);
            }
            _context.PlacementTransferDocs.RemoveRange(deleted.PlacementTransferDocs);
            await _context.SaveChangesAsync();
            _context.PlacementTransfers.Remove(deleted);
            foreach (var doc in placementTransferDocs)
            {
                if (doc != null)
                    await _documentService.DeleteFileAsync(doc);
            }
            await _context.SaveChangesAsync();

            return Success();
        }
    }
}