93 lines
2.7 KiB
C#
93 lines
2.7 KiB
C#
using Mapster;
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using Microsoft.EntityFrameworkCore;
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using Persistence.Database.Model;
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using Persistence.Models;
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using Persistence.Repositories;
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namespace Persistence.Repository.Repositories;
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public class TimeSeriesDataRepository<TEntity, TDto> : ITimeSeriesDataRepository<TDto>
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where TEntity : class, ITimestampedData, new()
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where TDto : class, ITimeSeriesAbstractDto, new()
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{
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private DbContext db;
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public TimeSeriesDataRepository(DbContext db)
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{
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this.db = db;
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}
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protected virtual IQueryable<TEntity> GetQueryReadOnly() => this.db.Set<TEntity>();
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public virtual async Task<DatesRangeDto?> GetDatesRange(CancellationToken token)
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{
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var query = GetQueryReadOnly();
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var minDate = await query.MinAsync(o => o.Date, token);
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var maxDate = await query.MaxAsync(o => o.Date, token);
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return new DatesRangeDto
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{
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From = minDate,
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To = maxDate
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};
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}
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public virtual async Task<IEnumerable<TDto>> GetGtDate(DateTimeOffset date, CancellationToken token)
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{
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//var query = GetQueryReadOnly()
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// .Where(q => q.Date >= dateBegin);
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//var entities = await query.ToArrayAsync(token);
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//var dtos = entities.Select(e => e.Adapt<TDto>());
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//return dtos;
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var query = this.db.Set<TEntity>().Where(e => e.Date > date);
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var entities = await query.ToArrayAsync(token);
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var dtos = entities.Select(e => e.Adapt<TDto>());
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return dtos;
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}
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public virtual async Task<int> InsertRange(IEnumerable<TDto> dtos, CancellationToken token)
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{
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var entities = dtos.Select(d => d.Adapt<TEntity>());
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await db.Set<TEntity>().AddRangeAsync(entities, token);
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var result = await db.SaveChangesAsync(token);
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return result;
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}
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protected async Task<IEnumerable<TDto>> GetLastAsync(int takeCount, CancellationToken token)
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{
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var query = GetQueryReadOnly()
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.OrderByDescending(e => e.Date)
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.Take(takeCount);
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var entities = await query.ToArrayAsync(token);
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var dtos = entities.Select(e => e.Adapt<TDto>());
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return dtos;
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}
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protected async Task<TDto?> GetFirstAsync(CancellationToken token)
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{
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var query = GetQueryReadOnly()
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.OrderBy(e => e.Date);
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var entity = await query.FirstOrDefaultAsync(token);
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if (entity == null)
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return null;
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var dto = entity.Adapt<TDto>();
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return dto;
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}
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public Task<IEnumerable<TDto>> GetResampledData(DateTimeOffset dateBegin, DateTimeOffset dateEnd, int approxPointsCount = 1024)
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{
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//todo
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throw new NotImplementedException();
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}
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}
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