using AsbCloudApp.Data;
using AsbCloudApp.Repositories;
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 DataSaubStatRepository : IDataSaubStatRepository
    {
        private readonly IAsbCloudDbContext db;

        public DataSaubStatRepository(IAsbCloudDbContext dbContext)
        {
            db = dbContext;
        }

        public async Task<IEnumerable<DataSaubStatDto>> GetLastDatesAsync(int[] idTelemetries, CancellationToken token)
        {
            var stats = await db.Set<DataSaubStat>()
                .Where(s => idTelemetries.Contains(s.IdTelemetry))
                .GroupBy(s => s.IdTelemetry, (key, group) => new DataSaubStatDto()
                {
                    IdTelemetry = key,
                    DateEnd = group.Max(s => s.DateEnd)
                })
                .ToArrayAsync(token);

            return stats;
        }

        public async Task<int> InsertRangeAsync(IEnumerable<DataSaubStatDto> dataSaubStats, CancellationToken token)
        {
            var entities = dataSaubStats.Select(data => data.Adapt<DataSaubStat>());
            db.Set<DataSaubStat>().AddRange(entities);
            return await db.SaveChangesAsync(token);
        }
    }
}