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

namespace BMA.EHR.Retirement.Service.Controllers
{
    [Route("api/v{version:apiVersion}/retirement")]
    [ApiVersion("1.0")]
    [ApiController]
    [Produces("application/json")]
    [Authorize]
    [SwaggerTag("ระบบพ้นราชการ")]
    public class RetirementController : BaseController
    {
        private readonly RetirementRepository _repository;
        private readonly ApplicationDBContext _context;
        private readonly MinIOService _documentService;
        private readonly IHttpContextAccessor _httpContextAccessor;

        public RetirementController(RetirementRepository 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;

        #endregion

        #region " จัดลำดับเกษียณ "
        private async Task GenOrderByYear(string type, int year)
        {
            if (type.Trim().ToUpper().Contains("OFFICER"))
            {
                var profiles = await _context.RetirementProfiles
                                    .Where(x => x.CreatedAt.Year == year)
                                    .Where(x => x.RetirementPeriod.Type.Trim().ToUpper().Contains(type.Trim().ToUpper()))
                                    .OrderBy(x => x.Profile.OrganizationOrganization)
                                    .ThenBy(x => x.Profile.PositionType == null ? null : x.Profile.PositionType.Name)
                                    .ThenBy(x => x.Profile.PositionLevel == null ? null : x.Profile.PositionLevel.Name)
                                    .ToListAsync();
                var order = 1;
                foreach (var profile in profiles)
                {
                    profile.Order = order;
                    profile.LastUpdateFullName = FullName ?? "System Administrator";
                    profile.LastUpdateUserId = UserId ?? "";
                    profile.LastUpdatedAt = DateTime.Now;
                    order++;
                }
            }
            if (type.Trim().ToUpper().Contains("EMPLOYEE"))
            {
                var profiles = await _context.RetirementProfiles
                                    .Where(x => x.CreatedAt.Year == year)
                                    .Where(x => x.RetirementPeriod.Type.Trim().ToUpper().Contains(type.Trim().ToUpper()))
                                    .OrderBy(x => x.Profile.OrganizationOrganization)
                                    .ThenBy(x => x.Profile.EmployeeType)
                                    .ThenBy(x => x.Profile.PositionEmployeeLevel)
                                    .ToListAsync();
                var order = 1;
                foreach (var profile in profiles)
                {
                    profile.Order = order;
                    profile.LastUpdateFullName = FullName ?? "System Administrator";
                    profile.LastUpdateUserId = UserId ?? "";
                    profile.LastUpdatedAt = DateTime.Now;
                    order++;
                }
            }
            _context.SaveChanges();
        }
        #endregion

        /// <summary>
        /// list ประกาศเกษียณอายุราชการ
        /// </summary>
        /// <param name="type">ประเภทUser(officer,employee)(ตัวใหญ่หรือเล็กก็ได้)</param>
        /// <param name="year">ปีงบประมาณ(ค.ศ.)</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("{type}/{year}")]
        public async Task<ActionResult<ResponseObject>> GetRetirement(string type, int year)
        {
            if (type.Trim().ToUpper().Contains("OFFICER") || type.Trim().ToUpper().Contains("EMPLOYEE"))
            {
                var retire_old = await _context.RetirementPeriods
                                    .Include(x => x.RetirementProfiles)
                                    .Where(x => x.CreatedAt.Year == year)
                                    .Where(x => x.Type.Trim().ToUpper().Contains(type.Trim().ToUpper()))
                                    .OrderByDescending(x => x.Round)
                                    .FirstOrDefaultAsync();

                if (retire_old != null)
                {
                    var data = await _context.RetirementPeriods
                                .Where(x => x.Type.Trim().ToUpper().Contains(type.Trim().ToUpper()))
                                .Where(x => year > 0 ? (x.CreatedAt.Year == year) : (x.CreatedAt.Year > 0))
                    .Select(x => new
                    {
                        Id = x.Id,
                        CreatedAt = x.CreatedAt,
                        Round = x.Round,
                        Total = retire_old.Id == x.Id ? retire_old.RetirementProfiles.Count() : retire_old.RetirementProfiles.Count() - x.RetirementProfiles.Where(x => x.Remove == true).Count(),
                    }).OrderByDescending(x => x.CreatedAt)
                    .ToListAsync();
                    return Success(data);
                }
            }
            return Success();
        }

        /// <summary>
        /// สร้างประกาศเกษียณใหม่
        /// </summary>
        /// <param name="type">ประเภทUser(officer,employee)(ตัวใหญ่หรือเล็กก็ได้)</param>
        /// <param name="year">ปีงบประมาณ(ค.ศ.)</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("profile/{type}/{year}")]
        public async Task<ActionResult<ResponseObject>> CreateProfileRetirement(string type, int year)
        {
            var round = 1;
            var retire_old = await _context.RetirementPeriods
                                .Include(x => x.RetirementProfiles)
                                .Where(x => x.CreatedAt.Year == year)
                                .Where(x => x.Type.Trim().ToUpper().Contains(type.Trim().ToUpper()))
                                .OrderByDescending(x => x.Round)
                                .FirstOrDefaultAsync();
            if (retire_old != null)
                round = retire_old.Round + 1;

            var retire = new RetirementPeriod
            {
                Round = round,
                Type = type.Trim().ToUpper(),
                CreatedUserId = FullName ?? "",
                CreatedFullName = UserId ?? "System Administrator",
                CreatedAt = DateTime.Now,
                LastUpdateFullName = FullName ?? "System Administrator",
                LastUpdateUserId = UserId ?? "",
                LastUpdatedAt = DateTime.Now,
            };
            await _context.RetirementPeriods.AddAsync(retire);
            if (retire_old != null)
            {
                var profiles = await _context.RetirementProfiles
                    .Where(x => x.RetirementPeriod == retire_old)
                    .Where(x => x.Remove == false)
                    .Where(x => x.RetirementPeriod.Type.Trim().ToUpper().Contains(type.Trim().ToUpper()))
                    .ToListAsync();
                foreach (var profile in profiles)
                {
                    profile.RetirementPeriod = retire;
                    profile.LastUpdateFullName = FullName ?? "System Administrator";
                    profile.LastUpdateUserId = UserId ?? "";
                    profile.LastUpdatedAt = DateTime.Now;
                }
            }
            else
            {
                var profiles = await _context.Profiles.AsQueryable()
                                   //    .Where(x => x.BirthDate.CalculateRetireDate().Year == year)
                                   .Where(x => x.ProfileType.Trim().ToUpper().Contains(type.Trim().ToUpper()))
                                   // .Where(x => x.CitizenId == "0000000000001")
                                   .ToListAsync();

                // var profiles = await (from p in _context.Profiles
                //                       where p.BirthDate.CalculateRetireDate().Year == year
                //                       select p)
                //                .ToListAsync();
                profiles = profiles.Where(x=>x.BirthDate.CalculateRetireDate().Year == year).ToList();
                var order = 1;
                foreach (var profile in profiles)
                {
                    var data = new RetirementProfile
                    {
                        Order = order,
                        Remove = false,
                        RetirementPeriod = retire,
                        Profile = profile,
                        CreatedUserId = FullName ?? "",
                        CreatedFullName = UserId ?? "System Administrator",
                        CreatedAt = DateTime.Now,
                        LastUpdateFullName = FullName ?? "System Administrator",
                        LastUpdateUserId = UserId ?? "",
                        LastUpdatedAt = DateTime.Now,
                    };
                    await _context.RetirementProfiles.AddAsync(data);
                    order++;
                }
            }

            _context.SaveChanges();
            var retire_all_year = await _context.RetirementPeriods
                                .Where(x => x.CreatedAt.Year == year)
                                .Where(x => x.Type.Trim().ToUpper().Contains(type.Trim().ToUpper()))
                                .CountAsync();
            if (retire_all_year <= 1)
            {
                await GenOrderByYear(type.Trim().ToUpper(), year);
            }
            _context.SaveChanges();
            var profile_new = await _context.RetirementProfiles
                                .Where(x => x.RetirementPeriod == retire)
                                .Where(x => x.RetirementPeriod.Type.Trim().ToUpper().Contains(retire.Type.Trim().ToUpper()))
                                .Select(x => new
                                {
                                    Order = x.Order,
                                    Id = x.Id,
                                    Reason = x.Reason,
                                    Remove = x.Remove,
                                    ProfileId = x.Profile.Id,
                                    CitizenId = x.Profile.CitizenId,
                                    Prefix = x.Profile.Prefix == null ? null : x.Profile.Prefix.Name,
                                    FullName = $"{x.Profile.FirstName} {x.Profile.LastName}",
                                    OrganizationOrganization = x.Profile.OrganizationOrganization,
                                    Oc = x.Profile.Oc,
                                    Position = x.Profile.Position == null ? null : x.Profile.Position.Name,
                                    PositionType = x.Profile.PositionType == null ? null : x.Profile.PositionType.Name,
                                    PositionExecutive = x.Profile.PositionExecutive,
                                    PosNo = x.Profile.PosNo == null ? null : x.Profile.PosNo.Name,
                                    PositionEmployeePosition = x.Profile.PositionEmployeePosition,
                                    PositionEmployeeLevel = x.Profile.PositionEmployeeLevel,
                                    PositionEmployeeGroup = x.Profile.PositionEmployeeGroup,
                                    PosNoEmployee = x.Profile.PosNoEmployee,
                                })
                                .ToListAsync();
            return Success(new { retire.Id, retire.CreatedAt, retire.Round, retire.Type, profile = profile_new });
        }

        /// <summary>
        /// View รายชื่อผู้เกษียณอายุราชการในประกาศ
        /// </summary>
        /// <param name="retireId">Id ประกาศ</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("{retireId:length(36)}")]
        public async Task<ActionResult<ResponseObject>> GetProfileRetirement(Guid retireId)
        {
            var retire = await _context.RetirementPeriods
                                .FirstOrDefaultAsync(x => x.Id == retireId);
            if (retire == null)
                return Error(GlobalMessages.InvalidRetirementRequest, 404);

            var retire_old = await _context.RetirementPeriods
                                .Where(x => x.CreatedAt < retire.CreatedAt)
                                .Where(x => x.Type.Trim().ToUpper().Contains(retire.Type.Trim().ToUpper()))
                                .ToListAsync();

            var profile = await _context.RetirementProfiles
                                .Where(x => !retire_old.Contains(x.RetirementPeriod))
                                .Where(x => x.RetirementPeriod.Type.Trim().ToUpper().Contains(retire.Type.Trim().ToUpper()))
                                .Select(x => new
                                {
                                    Order = x.Order,
                                    Id = x.Id,
                                    Reason = x.Reason,
                                    Remove = x.Remove,
                                    ProfileId = x.Profile.Id,
                                    CitizenId = x.Profile.CitizenId,
                                    Prefix = x.Profile.Prefix == null ? null : x.Profile.Prefix.Name,
                                    FullName = $"{x.Profile.FirstName} {x.Profile.LastName}",
                                    OrganizationOrganization = x.Profile.OrganizationOrganization,
                                    Oc = x.Profile.Oc,
                                    Position = x.Profile.Position == null ? null : x.Profile.Position.Name,
                                    PositionType = x.Profile.PositionType == null ? null : x.Profile.PositionType.Name,
                                    PositionExecutive = x.Profile.PositionExecutive,
                                    PosNo = x.Profile.PosNo == null ? null : x.Profile.PosNo.Name,
                                    PositionEmployeePosition = x.Profile.PositionEmployeePosition,
                                    PositionEmployeeLevel = x.Profile.PositionEmployeeLevel,
                                    PositionEmployeeGroup = x.Profile.PositionEmployeeGroup,
                                    PosNoEmployee = x.Profile.PosNoEmployee,
                                })
                                .ToListAsync();

            return Success(profile);
        }

        /// <summary>
        /// Delete รายชื่อผู้เกษียณอายุราชการในประกาศ
        /// </summary>
        /// <param name="retireProfileId">Id ผู้ใช้งานในประกาศ</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("profile/{retireProfileId:length(36)}")]
        public async Task<ActionResult<ResponseObject>> DeleteProfileRetirement(Guid retireProfileId)
        {
            var profile = await _context.RetirementProfiles
                                .FirstOrDefaultAsync(x => x.Id == retireProfileId);
            if (profile == null)
                return Error(GlobalMessages.DataNotFound, 404);

            _context.RetirementProfiles.Remove(profile);
            _context.SaveChanges();

            return Success();
        }

        /// <summary>
        /// Add รายชื่อผู้เกษียณอายุราชการในประกาศ
        /// </summary>
        /// <param name="retireId">Id ประกาศ</param>
        /// <param name="profileId">Id ผู้ใช้งาน</param>
        /// <returns></returns>
        /// <response code="200"></response>
        /// <response code="400">ค่าตัวแปรที่ส่งมาไม่ถูกต้อง</response>
        /// <response code="401">ไม่ได้ Login เข้าระบบ</response>
        /// <response code="500">เมื่อเกิดข้อผิดพลาดในการทำงาน</response>
        [HttpPut("profile/{retireId:length(36)}")]
        public async Task<ActionResult<ResponseObject>> AddProfileRetirement([FromBody] ProfileRequest req, Guid retireId)
        {
            var profile = await _context.Profiles
                                .FirstOrDefaultAsync(x => x.Id == req.ProfileId);
            if (profile == null)
                return Error(GlobalMessages.DataNotFound, 404);

            var retire = await _context.RetirementPeriods
                                .FirstOrDefaultAsync(x => x.Id == retireId);
            if (retire == null)
                return Error(GlobalMessages.InvalidRetirementRequest, 404);
            var order = 1;
            var retire_old = await _context.RetirementPeriods
                                .Where(x => x.CreatedAt.Year == retire.CreatedAt.Year)
                                .Where(x => x.Type.Trim().ToUpper().Contains(retire.Type.Trim().ToUpper()))
                                .ToListAsync();

            var last_order = await _context.RetirementProfiles
                                .Where(x => retire_old.Contains(x.RetirementPeriod))
                                .Where(x => x.RetirementPeriod.Type.Trim().ToUpper().Contains(retire.Type.Trim().ToUpper()))
                                .OrderByDescending(x => x.Order)
                                .FirstOrDefaultAsync();
            if (last_order != null)
                order = last_order.Order + 1;
            var data = new RetirementProfile
            {
                Order = order,
                Remove = false,
                RetirementPeriod = retire,
                Profile = profile,
                CreatedUserId = FullName ?? "",
                CreatedFullName = UserId ?? "System Administrator",
                CreatedAt = DateTime.Now,
                LastUpdateFullName = FullName ?? "System Administrator",
                LastUpdateUserId = UserId ?? "",
                LastUpdatedAt = DateTime.Now,
            };
            if (retire_old.Count() <= 1)
            {
                await GenOrderByYear(retire.Type.Trim().ToUpper(), retire.CreatedAt.Year);
            }

            _context.RetirementProfiles.Add(data);
            _context.SaveChanges();

            return Success();
        }

        /// <summary>
        /// ใส่เหตุผลไม่เกษียณ
        /// </summary>
        /// <param name="retireProfileId">Id ผู้ใช้งานในประกาศ</param>
        /// <param name="reason">เหตุผล</param>
        /// <returns></returns>
        /// <response code="200"></response>
        /// <response code="400">ค่าตัวแปรที่ส่งมาไม่ถูกต้อง</response>
        /// <response code="401">ไม่ได้ Login เข้าระบบ</response>
        /// <response code="500">เมื่อเกิดข้อผิดพลาดในการทำงาน</response>
        [HttpPost("reason")]
        public async Task<ActionResult<ResponseObject>> EditReasonProfileRetirement([FromBody] ProfileRetireRequest req)
        {
            var profile = await _context.RetirementProfiles
                                .FirstOrDefaultAsync(x => x.Id == req.RetireProfileId);
            if (profile == null)
                return Error(GlobalMessages.DataNotFound, 404);

            profile.Remove = true;
            profile.Reason = req.Reason;
            profile.LastUpdateFullName = FullName ?? "System Administrator";
            profile.LastUpdateUserId = UserId ?? "";
            profile.LastUpdatedAt = DateTime.Now;
            _context.SaveChanges();

            return Success();
        }

        /// <summary>
        /// View เหตุผลไม่เกษียณ
        /// </summary>
        /// <param name="retireProfileId">Id ผู้ใช้งานในประกาศ</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("reason/{retireProfileId:length(36)}")]
        public async Task<ActionResult<ResponseObject>> ViewReasonProfileRetirement(Guid retireProfileId)
        {
            var profile = await _context.RetirementProfiles
                                .Select(x => new
                                {
                                    Id = x.Id,
                                    Reason = x.Reason,
                                })
                                .FirstOrDefaultAsync(x => x.Id == retireProfileId);
            if (profile == null)
                return Error(GlobalMessages.DataNotFound, 404);

            return Success(profile);
        }
    }
}