using AsbCloudApp.Data;
using AsbCloudApp.Exceptions;
using AsbCloudApp.Services;
using AsbCloudDb.Model;
using Mapster;
using Microsoft.EntityFrameworkCore;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;

namespace AsbCloudInfrastructure.Services.PlannedTrajectory
{
#nullable enable
    public class PlannedTrajectoryService : IPlannedTrajectoryService
    {
        private readonly IAsbCloudDbContext db;
        private readonly IWellService wellService;
        public PlannedTrajectoryService(IAsbCloudDbContext db, IWellService wellService)
        {
            this.db = db;
            this.wellService = wellService;
        }
        public async Task<int> AddAsync(int idWell, int idUser,IEnumerable<PlannedTrajectoryDto> plannedTrajectoryRows, CancellationToken token)
        {
            var timezone = wellService.GetTimezone(idWell);
            foreach (var dto in plannedTrajectoryRows)
            {
                var entity = dto.Adapt<AsbCloudDb.Model.PlannedTrajectory>();
                entity.IdWell = idWell;
                entity.Id = default;
                entity.LoadDate = DateTime.Today.ToUtcDateTimeOffset(timezone.Hours);
                entity.IdUser = idUser;
                db.PlannedTrajectorys.Add(entity);
            }
            return await db.SaveChangesAsync(token)
                .ConfigureAwait(false);
        }

        public async Task<int> DeleteRangeAsync(IEnumerable<int> ids, CancellationToken token)
        {
            var query = db.PlannedTrajectorys.Where(e => ids.Contains(e.Id));
            db.PlannedTrajectorys.RemoveRange(query);
            return await db.SaveChangesAsync(token)
                .ConfigureAwait(false);
        }

        public async Task<IEnumerable<PlannedTrajectoryDto>?> GetCoordinatesAsync(int idWell, CancellationToken token)
        {
            var well = wellService.GetOrDefault(idWell);
            if (well is null || well.Timezone is null)
                throw new ArgumentInvalidException("idWell doesn`t exist", nameof(idWell));
            var query = db.PlannedTrajectorys
                .Where(x => x.IdWell == idWell);            
            var entities = await query
                .OrderBy(e => e.LoadDate)
                .ToListAsync(token);            
            var result = entities
                .Select(r => Convert(r));
            return result;
        }

        public async Task<int> UpdateAsync(int idWell, int idUser, int idRow, PlannedTrajectoryDto row, CancellationToken token)
        {
            var timezone = wellService.GetTimezone(idWell);
            var entity = row.Adapt<AsbCloudDb.Model.PlannedTrajectory>();
            entity.IdWell = idWell;
            entity.Id = idUser;
            entity.LoadDate = DateTime.Today.ToUtcDateTimeOffset(timezone.Hours);
            entity.IdUser = idUser;
            db.PlannedTrajectorys.Update(entity);
            return await db.SaveChangesAsync(token)
                .ConfigureAwait(false);
        }

        private static PlannedTrajectoryDto Convert(AsbCloudDb.Model.PlannedTrajectory entity)
        {
            var dto = entity.Adapt<PlannedTrajectoryDto>();            
            return dto;
        }        
    }
#nullable disable
}