iot/projects/IoTCenter/Controllers/DeviceController.cs

using System;
using System.Collections.Generic;
using System.Linq;
using Application.Domain.Entities;
using Infrastructure.Data;
using Microsoft.AspNetCore.Authorization;
using Microsoft.AspNetCore.Mvc;
using Microsoft.EntityFrameworkCore;
using Microsoft.Extensions.Configuration;
using Vibrant.InfluxDB.Client;
using Vibrant.InfluxDB.Client.Rows;

namespace IoTCenter.Controllers
{
    [Authorize]
    public class DeviceController : Controller
    {
        private readonly IConfiguration _configuration;
        private readonly IRepository<Node> _nodeRepo;
        private readonly IRepository<Device> _deviceRepo;

        public DeviceController(IConfiguration configuration, IRepository<Node> nodeRepo, IRepository<Device> deviceRepo)
        {
            this._configuration = configuration;
            this._nodeRepo = nodeRepo;
            this._deviceRepo = deviceRepo;
        }

        public IActionResult Index(Guid id)
        {
            var model = this._nodeRepo.ReadOnlyTable().FirstOrDefault(o => o.Id == id);
            return View(model);
        }

        public IActionResult Details(Guid id, string time = "10m")
        {
            var model = this._deviceRepo.ReadOnlyTable()
                .Include(o => o.Node)
                .Include(o => o.Data)
                .Include(o => o.Apis).ThenInclude(o => o.Parameters)
                .FirstOrDefault(o => o.Id == id);
            ViewBag.time = time;
            return View(model);
        }

        public IActionResult Data(Guid id, string time)
        {
            var device = this._deviceRepo.ReadOnlyTable().Include(o => o.Node).Include(o => o.Data).FirstOrDefault(o => o.Id == id);
            var url = this._configuration["influxdb:url"];
            var usr = this._configuration["influxdb:usr"];
            var pwd = this._configuration["influxdb:pwd"];
            var dbName = "iot";
            var measurementName = "data";
            var list = new List<object>();
            using (var client = new InfluxClient(new Uri(url), usr, pwd))
            {
                var fileds = String.Join(',', device.Data.Where(o => o.Type == "Int" || o.Type == "Float").Select(o => o.Key));
                var query = $"select {fileds} from {measurementName} where time>now()-{time} and DeviceNumber = '{device.Number}' limit 10000";
                var result = client.ReadAsync<DynamicInfluxRow>(dbName, query).Result;
                var rows = result.Results.FirstOrDefault()?
                    .Series.FirstOrDefault()?
                    .Rows;
                var labels = rows?.Select(o => o.Timestamp.Value).Select(o => o.ToString("MM-dd HH:mm:ss")).ToList() ?? new List<string>();
                foreach (var data in device.Data.Where(o => o.Type == "Int" || o.Type == "Float"))
                {
                    list.Add(new
                    {
                        id = data.Key,
                        label = data.Name,
                        labels,
                        data = rows?.Select(o => o.GetField(data.Key)).ToList() ?? new List<object>()
                    });
                }
            }
            return Json(list);
        }
    }
}