using AsbCloudApp.Data;
using AsbCloudApp.Data.ProcessMaps;
using AsbCloudApp.Repositories;
using AsbCloudApp.Requests;
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.Repository
{

    public class WellCompositeRepository : IWellCompositeRepository
    {
        private readonly IAsbCloudDbContext db;
        private readonly IWellDrillingProcessMapRepository wellDrillingProcessMapRepository;

        public WellCompositeRepository(IAsbCloudDbContext db, IWellDrillingProcessMapRepository wellDrillingProcessMapRepository)
        {
            this.db = db;
            this.wellDrillingProcessMapRepository = wellDrillingProcessMapRepository;
        }

        /// <inheritdoc/>
        public async Task<IEnumerable<WellCompositeDto>> GetAsync(int idWell, CancellationToken token)
        {
            var entities = await db.WellComposites
                .Where(c => c.IdWell == idWell)
                .AsNoTracking()
                .ToListAsync(token)
                .ConfigureAwait(false);
            return entities.Select(Convert);
        }

        /// <inheritdoc/>
        public Task<int> SaveAsync(int idWell, IEnumerable<WellCompositeDto> wellComposites, CancellationToken token)
        {
            db.WellComposites.RemoveRange(db.WellComposites
                .Where(c => c.IdWell == idWell));

            var entities = wellComposites
                .Select(w => Convert(idWell, w));

            db.WellComposites.AddRange(entities);
            return db.SaveChangesAsync(token);
        }

        /// <inheritdoc/>
        public async Task<IEnumerable<WellDrillingProcessMapDto>> GetCompositeProcessMap(int idWell, CancellationToken token)
        {
            var dtos = await GetAsync(idWell, token);

            var requests = dtos.Select(x => new WellDrillingProcessMapRequest {
                IdWell = x.IdWellSrc,
                IdWellSectionType = x.IdWellSectionType
            });

            var result = await wellDrillingProcessMapRepository.GetAsync(requests, token);
            return result;
        }

        private static WellComposite Convert(int idWell, WellCompositeDto dto)
        {
            var entity = dto.Adapt<WellComposite>();
            entity.IdWell = idWell;
            return entity;
        }
        private static WellCompositeDto Convert(WellComposite entity)
        {
            var dto = entity.Adapt<WellCompositeDto>();
            return dto;
        }
    }
    
}