using BMA.EHR.Application.Common.Interfaces;
using BMA.EHR.Domain.Extensions;
using BMA.EHR.Domain.ModelsExam.Candidate;
using BMA.EHR.Domain.Shared;
using Microsoft.AspNetCore.Hosting;
using Microsoft.EntityFrameworkCore;
using System.Text;
using System.Text.RegularExpressions;
using static BMA.EHR.Domain.Extensions.DateTimeExtension;

namespace BMA.EHR.Application.Repositories.Reports
{
    public class CandidateReportRepository
    {
        #region " Fields "

        private readonly IApplicationDBContext _dbContext;
        private readonly IApplicationDBExamContext _dbExamContext;
        private readonly IWebHostEnvironment _hostingEnvironment;
        private readonly MinIOService _documentService;
        private readonly OrganizationCommonRepository _organizationCommonRepository;

        #endregion

        #region " Constructor and Destructor "

        public CandidateReportRepository(IApplicationDBContext dbContext,
                                        IApplicationDBExamContext dbExamContext,
                                        MinIOService documentService,
                                        OrganizationCommonRepository organizationCommonRepository,
                                        IWebHostEnvironment hostEnvironment)
        {
            _dbContext = dbContext;
            _dbExamContext = dbExamContext;
            _hostingEnvironment = hostEnvironment;
            _organizationCommonRepository = organizationCommonRepository;
            _documentService = documentService;
        }

        #endregion

        #region " Methods "

        #region ใบสมัครสอบ
        public async Task<dynamic> GetExamCandidateAsync(Guid id)
        {
            var careers = await _dbExamContext.Set<Career>()
                                .AsQueryable()
                                .Where(x => x.Candidate.Id == id)
                                .ToListAsync();
            var yearDiff = 0;
            var monthDiff = 0;
            var dayDiff = 0;
            var sb = new StringBuilder();
            foreach (var career in careers)
            {
                if (career.DurationEnd < career.DurationStart)
                {
                    var rangeObj = career.DurationEnd.CalculateBetweenDateV2Value(career.DurationStart);
                    yearDiff = yearDiff + rangeObj.years;
                    monthDiff = monthDiff + rangeObj.months;
                    dayDiff = dayDiff + rangeObj.days;
                }
                else
                {
                    var rangeObj = career.DurationStart.CalculateBetweenDateV2Value(career.DurationEnd);
                    yearDiff = yearDiff + rangeObj.years;
                    monthDiff = monthDiff + rangeObj.months;
                    dayDiff = dayDiff + rangeObj.days;
                }
                if (dayDiff >= 30)
                {
                    monthDiff = monthDiff + (int)(dayDiff / 30);
                    dayDiff = dayDiff % 30;
                }
                if (monthDiff >= 12)
                {
                    yearDiff = yearDiff + (int)(monthDiff / 12);
                    monthDiff = monthDiff % 12;
                }
                sb.Clear();
                sb.Append(yearDiff == 0 ? "" : $"{yearDiff} ปี ");
                sb.Append(monthDiff == 0 ? "" : $"{monthDiff} เดือน ");
                sb.Append(dayDiff == 0 ? "" : $"{dayDiff} วัน ");
            }
            var candidate = await _dbExamContext.Set<Candidate>()
                .Where(x => x.Id == id)
                .Include(p => p.PeriodExam)
                .Include(p => p.Educations)
                .Include(p => p.PositionExam)
                .Include(p => p.ProfileImg)
                .FirstOrDefaultAsync();

            if (candidate == null)
                throw new Exception(GlobalMessages.CandidateNotFound);

            List<string> editorConfirmLists;

            var textOnly = string.IsNullOrEmpty(candidate.PeriodExam?.EditorConfirm)
                ? null
                : Regex.Replace(
                      candidate.PeriodExam.EditorConfirm,
                      "<[^>]+>",
                      string.Empty
                  )
                  .Replace("&nbsp;", " ")
                  .Trim();

            if (!string.IsNullOrEmpty(textOnly))
            {
                // ลบข้อความทั้งหมดก่อน "1." เพื่อให้เริ่มต้นที่ข้อแรกเสมอ
                var cleanedText = Regex.Replace(textOnly, @"^.*?1\.", "1.").Trim();

                // ถ้าข้อ 3 จบด้วย "มาตรา 1374." แล้วเลข 4. ติดกับประโยค ให้แทรกขึ้นบรรทัดใหม่เป็นข้อ 4.
                if (!cleanedText.Contains("\n4.") && Regex.IsMatch(cleanedText, @"1374\.\s*"))
                {
                    cleanedText = Regex.Replace(cleanedText, @"1374\.\s*", "137\n4. ");
                }

                // แยกข้อความเป็นแต่ละข้อ โดย split เมื่อเจอ pattern "ตัวเลข. "
                // ใช้ lookahead (?=...) เพื่อไม่กินตัวเลขทิ้ง และให้ตัวเลขยังอยู่ในผลลัพธ์
                editorConfirmLists = Regex.Split(cleanedText, @"(?=\d+\. )")
                    .Where(s => !string.IsNullOrWhiteSpace(s))
                    .Select(s => s.Replace("\n", "").Replace("\r", "").Trim())
                    .ToList();
            }
            else
            {
                editorConfirmLists = new List<string> { "-" };
            }

            return new
            {
                candidate.Id,
                AvatarId = candidate.ProfileImg?.Id ?? Guid.Empty,
                ExamIdenNumber = candidate.ExamIdenNumber ?? "-",
                PositionName = candidate.PositionExam?.PositionName ?? "-",
                PositionLevelName = candidate.PositionExam?.PositionLevelName ?? "-",
                PeriodExamName = candidate.PeriodExam?.Name ?? "-",
                PeriodExamRound = candidate.PeriodExam?.Round.ToString() ?? "-",
                PeriodExamYear = candidate.PeriodExam != null ? (candidate.PeriodExam.Year + 543).ToString() : "-",
                FullName = $"{candidate.PrefixName}{candidate.FirstName} {candidate.LastName}",
                Religion = candidate.ReligionName ?? "-",
                Nationality = candidate.Nationality ?? "-",
                DateOfBirth = candidate.DateOfBirth?.ToThaiFullDate2() ?? "-",
                Age = candidate.DateOfBirth?.CalculateAgeStrV2(0, 0) ?? "-",
                CitizenId = candidate.CitizenId ?? "-",

                EducationLevelExamName = candidate.Educations.FirstOrDefault()?.EducationLevelExamName ?? "-",
                EducationName = (candidate.Educations.FirstOrDefault()?.EducationLevelExamName is "ปริญญาตรี" or "ปริญญาโท" or "ปริญญาเอก")
                    ? candidate.Educations.FirstOrDefault()?.EducationName
                    : null,
                EducationMajor = candidate.Educations.FirstOrDefault()?.EducationMajor ?? "-",
                EducationLocation = candidate.Educations.FirstOrDefault()?.EducationLocation ?? "-",
                EducationEndDate = candidate.Educations.FirstOrDefault()?.EducationEndDate?.ToThaiFullDate2() ?? "-",
                EducationScores = candidate.Educations.FirstOrDefault()?.EducationScores ?? "-",
                EducationType = candidate.Educations.FirstOrDefault()?.EducationType ?? "-",
                EducationLevelHighName = candidate.Educations.FirstOrDefault()?.EducationLevelHighName ?? "-",

                OccupationPositionType = candidate.OccupationPositionType == "other" ? "ผู้ปฏิบัติงานอื่นในกรุงเทพมหานคร" :
                                         candidate.OccupationPositionType == "temp" ? "ลูกจ้างชั่วคราว" :
                                         candidate.OccupationPositionType == "prem" ? "ลูกจ้างประจำ" : "-",
                OccupationPosition = candidate.OccupationPosition ?? "-",
                OccupationSalary = candidate.OccupationSalary.HasValue
                    ? (candidate.OccupationSalary.Value % 1 == 0
                        ? candidate.OccupationSalary.Value.ToString("N0")
                        : candidate.OccupationSalary.Value.ToString("N2"))
                    : "-",
                OccupationGroup = candidate.OccupationGroup ?? "-",
                OccupationPile = candidate.OccupationPile ?? "-",
                OccupationOrg = candidate.OccupationOrg ?? "-",
                OccupationTelephone = candidate.OccupationTelephone ?? "-",

                CareersTotal = sb.ToString(),

                RegistAddress = candidate.RegistAddress ?? "-",
                RegistProvinceName = candidate.RegistProvinceName ?? "-",
                RegistDistrictName = candidate.RegistDistrictName ?? "-",
                RegistSubDistrictName = candidate.RegistSubDistrictName ?? "-",
                RegistZipCode = candidate.RegistZipCode ?? "-",
                CurrentAddress = candidate.CurrentAddress ?? candidate.RegistAddress ?? "-",
                CurrentProvinceName = candidate.CurrentProvinceName ?? candidate.RegistProvinceName ?? "-",
                CurrentDistrictName = candidate.CurrentDistrictName ?? candidate.RegistDistrictName ?? "-",
                CurrentSubDistrictName = candidate.CurrentSubDistrictName ?? candidate.RegistSubDistrictName ?? "-",
                CurrentZipCode = candidate.CurrentZipCode ?? candidate.RegistZipCode ?? "-",
                Telephone = candidate.Telephone ?? "-",
                Email = candidate.Email ?? "-",

                ContactFullName = $"{candidate.ContactPrefixName}{candidate.ContactFirstname} {candidate.ContactLastname}",
                ContactRelations = candidate.ContactRelations ?? "-",
                ContactTel = candidate.ContactTel ?? "-",

                RegisterDate = candidate.RegisterDate?.ToThaiFullDate() ?? "-",
                
                IsBachelors = candidate.PositionExam != null && !string.IsNullOrEmpty(candidate.PositionExam.PositionLevelName) && candidate.PositionExam.PositionLevelName.Trim() == "ปฏิบัติการ"
                    ? new List<object>
                        {
                            new { label = "ชื่อปริญญา", value = candidate.Educations.FirstOrDefault()?.EducationName ?? "-" },
                            new { label = "สาขาวิชา/วิชาเอก", value = candidate.Educations.FirstOrDefault()?.EducationMajor ?? "-" }
                        }
                    : new List<object>
                        {
                            new { label = "สาขาวิชา/วิชาเอก", value = candidate.Educations.FirstOrDefault()?.EducationMajor ?? "-" }
                        },

                EditorConfirms = editorConfirmLists
            };
        }
        public async Task<dynamic> GetExamCareerCandidateAsync(Guid id)
        {
            var items = await _dbExamContext.Set<Career>().AsQueryable()
                        .Where(x => x.Candidate != null)
                        .Where(x => x.Candidate.Id == id)
                        .OrderBy(x => x.DurationStart)
                        .Select(p => new
                        {
                            Position = p.Position,
                            Type = p.Type,
                            DurationStart = p.DurationStart.ToThaiShortDate2(),
                            DurationEnd = p.DurationEnd.ToThaiShortDate2(),
                            RangeDate = p.RangeDate,
                        })
                       .ToListAsync();
            int retVal = 1;
            var data = new List<dynamic>();
            foreach (var item in items)
            {
                var _data = new
                {
                    Position = item.Position,
                    Type = item.Type,
                    DurationStart = item.DurationStart,
                    DurationEnd = item.DurationEnd,
                    RangeDate = item.RangeDate,
                    Index = retVal.ToString(),
                };
                data.Add(_data);
                retVal++;
            }

            return data;
        }

        public async Task<dynamic> GetExamAvatarCandidateAsync(Guid id)
        {
            var data = await _dbExamContext.Set<Candidate>().AsQueryable()
                        .Where(x => x.Id == id)
                        .Select(p => new
                        {
                            AvatarId = p.ProfileImg == null ? Guid.Parse("00000000-0000-0000-0000-000000000000") : p.ProfileImg.Id,
                        })
                       .FirstOrDefaultAsync();

            if (data == null)
                throw new Exception(GlobalMessages.CandidateNotFound);
            return data.AvatarId;
        }
        #endregion

        #endregion
    }
}