using AsbCloudApp.Data;
using AsbCloudApp.Services;
using AsbCloudWebApi.SignalR;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Http;
using Microsoft.AspNetCore.Mvc;
using Microsoft.AspNetCore.SignalR;
using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;

namespace AsbCloudWebApi.Controllers.WITS;

[Route("api/[controller]")]
[ApiController]
public abstract class WitsControllerAbstract<TDto> : ControllerBase
    where TDto : ITelemetryData
{
    private readonly ITelemetryService telemetryService;
    private readonly IHubContext<TelemetryHub> telemetryHubContext;
    protected abstract string SirnalRMethodGetDataName { get; }

    public WitsControllerAbstract(
        ITelemetryService telemetryService,
        IHubContext<TelemetryHub> telemetryHubContext)
    {
        this.telemetryService = telemetryService;
        this.telemetryHubContext = telemetryHubContext;
    }

    /// <summary>
    /// Метод для получения WITS записи от панели оператора.
    /// Созраняет в БД.
    /// Ретранслирует заинтересованным через SignalR.
    /// </summary>
    /// <param name="uid">уникальный идентификатор телеметрии</param>
    /// <param name="dtos">WITS запись</param>
    /// <param name="witsRecordRepository"></param>
    /// <param name="token"></param>
    /// <returns></returns>
    [HttpPost("{uid}")]
    [AllowAnonymous]
    public async virtual Task<IActionResult> PostDataAsync(
        string uid,
        [FromBody] IEnumerable<TDto> dtos,
        [FromServices] IWitsRecordRepository<TDto> witsRecordRepository,
        CancellationToken token)
    {
        var telemetry = telemetryService.GetOrCreateTelemetryByUid(uid);
        await witsRecordRepository.SaveDataAsync(telemetry.Id, dtos, token).ConfigureAwait(false);
        var idWell = telemetryService.GetIdWellByTelemetryUid(uid);
        if (idWell != null && dtos.Any())
            _ = Task.Run(() => telemetryHubContext.Clients.Group($"well_{idWell}_wits")
                  .SendAsync(SirnalRMethodGetDataName, dtos), CancellationToken.None);

        return Ok();
    }

    /// <summary>
    /// Получение последней пришедшей WITS записи.
    /// </summary>
    /// <param name="idWell">id скважины</param>
    /// <param name="witsRecordRepository"></param>
    /// <returns></returns>
    [HttpGet("{idWell}/last")]
    public virtual ActionResult<IEnumerable<TDto>> GetLastData(
        int idWell,
        [FromServices] IWitsRecordRepository<TDto> witsRecordRepository)
    {
        var telemetry = telemetryService.GetOrDefaultTelemetryByIdWell(idWell);
        if (telemetry is null)
            return NoContent();
        var dto = witsRecordRepository.GetLastOrDefault(telemetry.Id);
        return Ok(new[] { dto });
    }

    /// <summary>
    /// Получение списка архивных WITS записей за период.
    /// </summary>
    /// <param name="idWell">id скважины</param>
    /// <param name="begin">начало диапазона</param>
    /// <param name="end">конец диапазона</param>
    /// <param name="witsRecordRepository"></param>
    /// <param name="token"></param>
    /// <returns></returns>
    [HttpGet("{idWell}")]
    public async virtual Task<ActionResult<IEnumerable<TDto>>> GetDataAsync(
        int idWell,
        [Required] DateTime begin,
        [Required] DateTime end,
        [FromServices] IWitsRecordRepository<TDto> witsRecordRepository,
        CancellationToken token)
    {
        var telemetry = telemetryService.GetOrDefaultTelemetryByIdWell(idWell);
        if (telemetry is null)
            return NoContent();
        var dtos = await witsRecordRepository.GetAsync(telemetry.Id, begin, end, token);
        return Ok(dtos);
    }

    /// <summary>
    /// Получение статистики по WITS записи.
    /// Диапазон дат и общее количество записей.
    /// </summary>
    /// <param name="idWell">id скважины</param>
    /// <param name="witsRecordRepository"></param>
    /// <param name="token"></param>
    /// <returns></returns>
    [HttpGet("{idWell}/datesRange")]
    [ProducesResponseType(StatusCodes.Status200OK, Type = typeof((DateTime begin, DateTime end, int count)?))]
    public async virtual Task<IActionResult> GetDatesRangeAsync(
        int idWell,
        [FromServices] IWitsRecordRepository<TDto> witsRecordRepository,
        CancellationToken token)
    {
        var telemetry = telemetryService.GetOrDefaultTelemetryByIdWell(idWell);
        if (telemetry is null)
            return NoContent();
        var dtos = await witsRecordRepository.GetStatAsync(telemetry.Id, token);
        return Ok(dtos);
    }
}