using BMA.EHR.Application.Common.Interfaces;
using BMA.EHR.Domain.Models.Leave.TimeAttendants;
using Microsoft.AspNetCore.Http;
using Microsoft.EntityFrameworkCore;

namespace BMA.EHR.Application.Repositories.Leaves.TimeAttendants
{
    public class CheckInJobStatusRepository : GenericLeaveRepository<Guid, CheckInJobStatus>
    {
        #region " Fields "

        private readonly ILeaveDbContext _dbContext;

        #endregion

        #region " Constructor and Destructor "

        public CheckInJobStatusRepository(ILeaveDbContext dbContext,
                                          IHttpContextAccessor httpContextAccessor) : base(dbContext, httpContextAccessor)
        {
            _dbContext = dbContext;
        }

        #endregion

        #region " Methods "

        /// <summary>
        /// ดึงข้อมูล Job Status จาก TaskId
        /// </summary>
        public async Task<CheckInJobStatus?> GetByTaskIdAsync(Guid taskId)
        {
            var data = await _dbContext.Set<CheckInJobStatus>()
                                .Where(x => x.TaskId == taskId)
                                .FirstOrDefaultAsync();

            return data;
        }

        /// <summary>
        /// ดึงข้อมูล Job Status จาก UserId และสถานะ
        /// </summary>
        public async Task<List<CheckInJobStatus>> GetByUserIdAndStatusAsync(Guid userId, string status)
        {
            var data = await _dbContext.Set<CheckInJobStatus>()
                                .Where(x => x.KeycloakUserId == userId && x.Status == status)
                                .OrderByDescending(x => x.CreatedDate)
                                .ToListAsync();

            return data;
        }

        /// <summary>
        /// ดึงข้อมูล Job Status ที่ยัง pending หรือ processing
        /// </summary>
        public async Task<List<CheckInJobStatus>> GetPendingOrProcessingJobsAsync(Guid userId)
        {
            var data = await _dbContext.Set<CheckInJobStatus>()
                                .Where(x => x.KeycloakUserId == userId && 
                                       (x.Status == "PENDING" || x.Status == "PROCESSING"))
                                //.OrderByDescending(x => x.CreatedDate)
                                .ToListAsync();

            return data;
        }

        /// <summary>
        /// อัปเดตสถานะเป็น Processing
        /// </summary>
        public async Task<CheckInJobStatus> UpdateToProcessingAsync(Guid taskId)
        {
            var job = await GetByTaskIdAsync(taskId);
            if (job != null)
            {
                job.Status = "PROCESSING";
                job.ProcessingDate = DateTime.Now;
                await UpdateAsync(job);
            }
            return job!;
        }

        /// <summary>
        /// อัปเดตสถานะเป็น Completed
        /// </summary>
        public async Task<CheckInJobStatus> UpdateToCompletedAsync(Guid taskId, string? additionalData = null)
        {
            var job = await GetByTaskIdAsync(taskId);
            if (job != null)
            {
                job.Status = "COMPLETED";
                job.CompletedDate = DateTime.Now;
                if (!string.IsNullOrEmpty(additionalData))
                {
                    job.AdditionalData = additionalData;
                }
                await UpdateAsync(job);
            }
            return job!;
        }

        /// <summary>
        /// อัปเดตสถานะเป็น Failed
        /// </summary>
        public async Task<CheckInJobStatus> UpdateToFailedAsync(Guid taskId, string errorMessage)
        {
            var job = await GetByTaskIdAsync(taskId);
            if (job != null)
            {
                job.Status = "FAILED";
                job.CompletedDate = DateTime.Now;
                job.ErrorMessage = errorMessage;
                await UpdateAsync(job);
            }
            return job!;
        }

        /// <summary>
        /// ล้างข้อมูล Job Status ที่เก่าเกิน X วัน
        /// </summary>
        public async Task<int> CleanupOldJobsAsync(int daysOld = 30)
        {
            var cutoffDate = DateTime.Now.AddDays(-daysOld);
            var oldJobs = await _dbContext.Set<CheckInJobStatus>()
                                .Where(x => x.CreatedDate < cutoffDate)
                                .ToListAsync();

            _dbContext.Set<CheckInJobStatus>().RemoveRange(oldJobs);
            await _dbContext.SaveChangesAsync();

            return oldJobs.Count;
        }

        #endregion
    }
}