Лиясов, ФТ302

BadNews/Components/ArchiveLinksViewComponent.cs

@@ -0,0 +1,44 @@
+using BadNews.Repositories.News;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.Extensions.Caching.Memory;
+using System;
+using System.Collections.Generic;
+
+namespace BadNews.Components
+{
+    public class ArchiveLinksViewComponent : ViewComponent
+    {
+        private readonly INewsRepository newsRepository;
+        private readonly IMemoryCache memoryCache;
+
+        public ArchiveLinksViewComponent(INewsRepository newsRepository, IMemoryCache memoryCache)
+        {
+            this.newsRepository = newsRepository;
+            this.memoryCache = memoryCache;
+        }
+
+        public IViewComponentResult Invoke()
+        {
+            var years = GetYearsWithArticles();
+            return View(years);
+        }
+
+        private IList<int> GetYearsWithArticles()
+        {
+            const string cacheKey = nameof(ArchiveLinksViewComponent) + "_" + nameof(GetYearsWithArticles);
+            if (!memoryCache.TryGetValue(cacheKey, out var years))
+            {
+                years = newsRepository.GetYearsWithArticles();
+                if (years != null)
+                {
+                    memoryCache.Set(cacheKey, years, new MemoryCacheEntryOptions
+                    {
+                        AbsoluteExpirationRelativeToNow = TimeSpan.FromSeconds(30)
+                    });
+                }
+            }
+
+            return (IList<int>)years;
+        }
+    }
+}

BadNews/Components/WeatherViewComponent.cs

@@ -0,0 +1,22 @@
+using BadNews.Repositories.Weather;
+using Microsoft.AspNetCore.Mvc;
+using System.Threading.Tasks;
+
+namespace BadNews.Components
+{
+    public class WeatherViewComponent : ViewComponent
+    {
+        private readonly IWeatherForecastRepository weatherRepository;
+
+        public WeatherViewComponent(IWeatherForecastRepository weatherRepository)
+        {
+            this.weatherRepository = weatherRepository;
+        }
+
+        public async Task<IViewComponentResult> InvokeAsync()
+        {
+            var weather = await weatherRepository.GetWeatherForecastAsync();
+            return View(weather);
+        }
+    }
+}

BadNews/Controllers/EditorController.cs

@@ -0,0 +1,52 @@
+using System;
+using BadNews.Elevation;
+using BadNews.Models.Editor;
+using BadNews.Repositories.News;
+using Microsoft.AspNetCore.Mvc;
+
+namespace BadNews.Controllers
+{
+    [ElevationRequiredFilter]
+    public class EditorController : Controller
+    {
+        private readonly INewsRepository newsRepository;
+
+        public EditorController(INewsRepository newsRepository)
+        {
+            this.newsRepository = newsRepository;
+        }
+
+        [HttpPost]
+        public IActionResult CreateArticle([FromForm] IndexViewModel model)
+        {
+            if (!ModelState.IsValid)
+                return View("Index", model);
+
+            var id = newsRepository.CreateArticle(new NewsArticle
+            {
+                Date = DateTime.Now.Date,
+                Header = model.Header,
+                Teaser = model.Teaser,
+                ContentHtml = model.ContentHtml,
+            });
+
+            return RedirectToAction("FullArticle", "News", new
+            {
+                id = id
+            });
+        }
+
+        [HttpPost]
+        public IActionResult DeleteArticle(Guid id)
+        {
+            newsRepository.DeleteArticleById(id);
+            return RedirectToAction("Index", "News");
+        }
+
+        [HttpGet("/editor")]
+        public IActionResult Index()
+        {
+            return View(new IndexViewModel());
+        }
+    }
+}

BadNews/Controllers/ErrorsController.cs

@@ -0,0 +1,27 @@
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.Extensions.Logging;
+using System;
+
+namespace BadNews.Controllers
+{
+    public class ErrorsController : Controller
+    {
+        private readonly ILogger<ErrorsController> logger;
+
+        public ErrorsController(ILogger<ErrorsController> logger)
+        {
+            this.logger = logger;
+        }
+
+        public IActionResult StatusCode(int? code)
+        {
+            logger.LogWarning("status-code {code} at {time}", code, DateTime.Now);
+            return View(code);
+        }
+
+        public IActionResult Exception()
+        {
+            return View(null, HttpContext.TraceIdentifier);
+        }
+    }
+}

BadNews/Controllers/NewsController.cs

@@ -0,0 +1,53 @@
+using BadNews.ModelBuilders.News;
+using BadNews.Models.News;
+using Microsoft.AspNetCore.Mvc;
+using Microsoft.Extensions.Caching.Memory;
+using System;
+
+namespace BadNews.Controllers
+{
+    [ResponseCache(Duration = 30, Location = ResponseCacheLocation.Client, VaryByHeader = "Cookie")]
+    public class NewsController : Controller
+    {
+        private readonly INewsModelBuilder newsModelBuilder;
+        private readonly IMemoryCache memoryCache;
+
+        public NewsController(INewsModelBuilder newsModelBuilder, IMemoryCache memoryCache)
+        {
+            this.newsModelBuilder = newsModelBuilder;
+            this.memoryCache = memoryCache;
+        }
+
+        public IActionResult Index(int? year, int pageIndex = 0)
+        {
+            var model = newsModelBuilder.BuildIndexModel(pageIndex, true, year);
+            return View(model);
+        }
+
+        [ResponseCache(Location = ResponseCacheLocation.None, NoStore = true)]
+        public IActionResult FullArticle(Guid id)
+        {
+            var model = BuildFullArticleModel(id);
+            return model == null ? NotFound() : View(model);
+        }
+
+        private FullArticleModel BuildFullArticleModel(Guid id)
+        {
+            const string cacheKeyBase = nameof(NewsController) + "_" + nameof(BuildFullArticleModel) + "_";
+            string cacheKey = cacheKeyBase + id;
+            if (!memoryCache.TryGetValue(cacheKey, out var years))
+            {
+                years = newsModelBuilder.BuildFullArticleModel(id);
+                if (years != null)
+                {
+                    memoryCache.Set(cacheKey, years, new MemoryCacheEntryOptions
+                    {
+                        SlidingExpiration = TimeSpan.FromSeconds(30)
+                    });
+                }
+            }
+
+            return (FullArticleModel)years;
+        }
+    }
+}

BadNews/Elevation/ElevationConstants.cs

@@ -2,6 +2,8 @@ namespace BadNews.Elevation
 {
     public static class ElevationConstants
     {
+        public const string Path = "/elevation";
+        public const string QueryKey = "up";
         public const string CookieName = "elevation";
         public const string CookieValue = "yes";
     }

BadNews/Elevation/ElevationMiddleware.cs

@@ -15,7 +15,18 @@ public ElevationMiddleware(RequestDelegate next)
 
         public async Task InvokeAsync(HttpContext context)
         {
-            throw new NotImplementedException();
+            if (string.Equals(context.Request.Path, ElevationConstants.Path, StringComparison.OrdinalIgnoreCase))
+            {
+                if (context.Request.Query.ContainsKey(ElevationConstants.QueryKey))
+                    context.Response.Cookies.Append(ElevationConstants.CookieName,
+                        ElevationConstants.CookieValue, new CookieOptions { HttpOnly = true });
+                else
+                    context.Response.Cookies.Delete(ElevationConstants.CookieName);
+
+                context.Response.Redirect("/");
+            }
+
+            await next(context);
         }
     }
 }

BadNews/Program.cs

@@ -1,7 +1,10 @@
+using System;
 using System.Linq;
 using BadNews.Repositories.News;
 using Microsoft.AspNetCore.Hosting;
+using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.Hosting;
+using Serilog;
 
 namespace BadNews
 {
@@ -10,7 +13,31 @@ public class Program
         public static void Main(string[] args)
         {
             InitializeDataBase();
-            CreateHostBuilder(args).Build().Run();
+
+            Log.Logger = new LoggerConfiguration()
+                .WriteTo.File(".logs/start-host-log-.txt",
+                    rollingInterval: RollingInterval.Day,
+                    rollOnFileSizeLimit: true,
+                    outputTemplate: "[{Timestamp:HH:mm:ss} {Level:u3}] {Message:lj} {Properties:j}{NewLine}{Exception}")
+                .CreateLogger();
+
+            try
+            {
+                Log.Information("Creating web host builder");
+                var hostBuilder = CreateHostBuilder(args);
+                Log.Information("Building web host");
+                var host = hostBuilder.Build();
+                Log.Information("Running web host");
+                host.Run();
+            }
+            catch (Exception ex)
+            {
+                Log.Fatal(ex, "Host terminated unexpectedly");
+            }
+            finally
+            {
+                Log.CloseAndFlush();
+            }
         }
 
         public static IHostBuilder CreateHostBuilder(string[] args)
@@ -19,6 +46,11 @@ public static IHostBuilder CreateHostBuilder(string[] args)
                 .ConfigureWebHostDefaults(webBuilder =>
                 {
                     webBuilder.UseStartup<Startup>();
+                })
+                .UseSerilog((hostingContext, loggerConfiguration) =>
+                    loggerConfiguration.ReadFrom.Configuration(hostingContext.Configuration))
+                .ConfigureHostConfiguration(config => {
+                    config.AddJsonFile("appsettings.Secret.json", optional: true, reloadOnChange: false);
                 });
         }
 

BadNews/Repositories/Weather/OpenWeatherForecast.cs

@@ -18,10 +18,10 @@ public class WeatherInfo
 
         public class MainInfo
         {
-            public int Temp { get; set; }
+            public decimal Temp { get; set; }
             public decimal FeelsLike { get; set; }
-            public int TempMin { get; set; }
-            public int TempMax { get; set; }
+            public decimal TempMin { get; set; }
+            public decimal TempMax { get; set; }
             public int Pressure { get; set; }
             public int Humidity { get; set; }
         }

BadNews/Repositories/Weather/WeatherForecast.cs

@@ -6,7 +6,7 @@ public class WeatherForecast
     {
         private const string defaultWeatherImageUrl = "/images/cloudy.png";
 
-        public int TemperatureInCelsius { get; set; }
+        public decimal TemperatureInCelsius { get; set; }
         public string IconUrl { get; set; }
 
         public static WeatherForecast CreateFrom(OpenWeatherForecast forecast)

BadNews/Repositories/Weather/WeatherForecastRepository.cs

@@ -1,3 +1,4 @@
+using Microsoft.Extensions.Options;
 using System;
 using System.Threading.Tasks;
 
@@ -6,12 +7,33 @@ namespace BadNews.Repositories.Weather
     public class WeatherForecastRepository : IWeatherForecastRepository
     {
         private const string defaultWeatherImageUrl = "/images/cloudy.png";
-
+        private readonly string apiKey;
+        private readonly OpenWeatherClient openWeatherClient;
         private readonly Random random = new Random();
 
+        public WeatherForecastRepository(IOptions<OpenWeatherOptions> weatherOptions)
+        {
+            apiKey = weatherOptions?.Value.ApiKey;
+            openWeatherClient = apiKey is not null ? new OpenWeatherClient(apiKey) : null;
+        }
+
         public async Task<WeatherForecast> GetWeatherForecastAsync()
         {
-            return BuildRandomForecast();
+            var serviceResponse = await TryGetWeatherFromOpenWeather();
+            if (serviceResponse is null) return BuildRandomForecast();
+            return WeatherForecast.CreateFrom(serviceResponse);
+        }
+
+        private async Task<OpenWeatherForecast> TryGetWeatherFromOpenWeather()
+        {
+            try
+            {
+                return await openWeatherClient?.GetWeatherFromApiAsync();
+            }
+            catch (Exception e)
+            {
+                return null;
+            }
         }
 
         private WeatherForecast BuildRandomForecast()