using System;
using System.Collections.Generic;
using System.Linq;
using System.Text.Json;
using System.Threading;
using System.Threading.Tasks;
using AsbCloudApp.Data.DailyReport;
using AsbCloudApp.Data.DailyReport.Blocks.Sign;
using AsbCloudApp.Data.DailyReport.Blocks.Subsystems;
using AsbCloudApp.Data.DailyReport.Blocks.TimeBalance;
using AsbCloudApp.Repositories;
using AsbCloudApp.Requests;
using AsbCloudDb;
using AsbCloudDb.Model;
using Microsoft.EntityFrameworkCore;

namespace AsbCloudInfrastructure.Repository;

public class DailyReportRepository : CrudRepositoryBase<DailyReportDto, DailyReport>,
	IDailyReportRepository
{
	private class Blocks
	{
		public SubsystemBlockDto? Subsystem { get; set; }

		public TimeBalanceBlockDto? TimeBalance { get; set; }

		public SignBlockDto? Sign { get; set; }
	}

	public DailyReportRepository(IAsbCloudDbContext dbContext)
		: base(dbContext)
	{
	}

	public async Task<IEnumerable<DailyReportDto>> GetAsync(int idWell, FileReportRequest request, CancellationToken cancellationToken)
	{
		var skip = request.Skip ?? 0;
		var take = request.Take ?? 10;

		var query = GetQuery().Where(d => d.IdWell == idWell);

		if (request.GeDate.HasValue)
			query = query.Where(d => d.DateStart <= request.GeDate.Value.ToDateTime(TimeOnly.MinValue, DateTimeKind.Utc));

		if (request.LeDate.HasValue)
			query = query.Where(d => d.DateStart >= request.LeDate.Value.ToDateTime(TimeOnly.MinValue, DateTimeKind.Utc));

		if (request.SortFields?.Any() == true)
		{
			query = query.SortBy(request.SortFields);
		}

		var entities = await query
			.AsNoTracking()
			.ToArrayAsync(cancellationToken);

		return entities.Skip(skip).Take(take).Select(Convert);
	}

	public async Task<DailyReportDto?> GetOrDefaultAsync(int idWell, DateTime dateStart, CancellationToken cancellationToken)
	{
		var entity = await GetQuery()
			.Include(d => d.Well)
			.SingleOrDefaultAsync(d => d.IdWell == idWell &&
										d.DateStart == dateStart, cancellationToken);

		return entity is null ? null : Convert(entity);
	}

	public Task<bool> AnyAsync(int idWell, DateTime dateStart, CancellationToken cancellationToken) =>
		GetQuery().AnyAsync(d => d.IdWell == idWell && d.DateStart == dateStart, cancellationToken);

	protected override DailyReport Convert(DailyReportDto src)
	{
		var entity = base.Convert(src);

		entity.Blocks = JsonSerializer.Serialize(new Blocks
		{
			Subsystem = src.SubsystemBlock,
			TimeBalance = src.TimeBalanceBlock,
			Sign = src.SignBlock,
		});

		return entity;
	}

	protected override DailyReportDto Convert(DailyReport src)
	{
		var dto = base.Convert(src);

		if (string.IsNullOrWhiteSpace(src.Blocks))
			return dto;

		var blocks = JsonSerializer.Deserialize<Blocks>(src.Blocks);

		dto.SubsystemBlock = blocks?.Subsystem;
		dto.TimeBalanceBlock = blocks?.TimeBalance;
		dto.SignBlock = blocks?.Sign;

		return dto;
	}
}