Add resolutions service.

Marechai.Database/Models/Resolution.cs

@@ -56,33 +56,5 @@ namespace Marechai.Database.Models
         public virtual ICollection<Screen>              Screens             { get; set; }
 
         public long? PaletteView => Palette ?? Colors;
-
-        public override string ToString()
-        {
-            if(Chars)
-            {
-                if(Colors == null)
-                    return$"{Width}x{Height} characters";
-
-                if(Palette != null &&
-                   Colors  != Palette)
-                    return Grayscale ? $"{Width}x{Height} characters at {Colors} grays from a palette of {Palette}"
-                               : $"{Width}x{Height} characters at {Colors} colors from a palette of {Palette}";
-
-                return Colors == 2 && Grayscale ? $"{Width}x{Height} black and white characters"
-                           : $"{Width}x{Height} characters at {Colors} colors";
-            }
-
-            if(Colors == null)
-                return$"{Width}x{Height} pixels";
-
-            if(Palette != null &&
-               Colors  != Palette)
-                return Grayscale ? $"{Width}x{Height} pixels at {Colors} grays from a palette of {Palette}"
-                           : $"{Width}x{Height} pixels at {Colors} colors from a palette of {Palette}";
-
-            return Colors == 2 && Grayscale ? $"{Width}x{Height} black and white pixels"
-                       : $"{Width}x{Height} pixels at {Colors} colors";
-        }
     }
 }

Marechai/Marechai.csproj

@@ -2,7 +2,7 @@
 <Project Sdk="Microsoft.NET.Sdk.Web">
   <PropertyGroup>
     <TargetFramework>netcoreapp3.1</TargetFramework>
-    <Version>3.0.99.1192</Version>
+    <Version>3.0.99.1193</Version>
     <Company>Canary Islands Computer Museum</Company>
     <Copyright>Copyright © 2003-2020 Natalia Portillo</Copyright>
     <Product>Canary Islands Computer Museum Website</Product>
@@ -115,6 +115,9 @@
     <Content Update="Pages\Admin\Details\Processor.razor">
       <ExcludeFromSingleFile>true</ExcludeFromSingleFile>
     </Content>
+    <Content Update="Pages\Admin\Details\Screen.razor">
+      <ExcludeFromSingleFile>true</ExcludeFromSingleFile>
+    </Content>
   </ItemGroup>
   <ItemGroup>
     <_ContentIncludedByDefault Remove="Areas\Admin\Views\BrowserTests\Delete.cshtml" />

Marechai/Services/Register.cs

@@ -60,6 +60,7 @@ namespace Marechai.Services
             services.AddScoped<ScreensService>();
             services.AddScoped<SoundSynthsService>();
             services.AddScoped<Iso31661NumericService>();
+            services.AddScoped<ResolutionsService>();
         }
     }
 }

Marechai/Services/ResolutionsService.cs

@@ -0,0 +1,27 @@
+using System.Collections.Generic;
+using System.Linq;
+using System.Threading.Tasks;
+using Marechai.Database.Models;
+using Marechai.ViewModels;
+using Microsoft.EntityFrameworkCore;
+
+namespace Marechai.Services
+{
+    public class ResolutionsService
+    {
+        readonly MarechaiContext _context;
+
+        public ResolutionsService(MarechaiContext context) => _context = context;
+
+        public async Task<List<ResolutionViewModel>> GetAsync()
+        {
+            List<ResolutionViewModel> list = await _context.Resolutions.Select(r => new ResolutionViewModel
+            {
+                Id      = r.Id, Width      = r.Width, Height    = r.Height, Colors = r.Colors,
+                Palette = r.Palette, Chars = r.Chars, Grayscale = r.Grayscale
+            }).ToListAsync();
+
+            return list.OrderBy(r => r.ToString()).ToList();
+        }
+    }
+}

Marechai/ViewModels/ResolutionViewModel.cs

@@ -0,0 +1,46 @@
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.ComponentModel.DataAnnotations;
+
+namespace Marechai.ViewModels
+{
+    public class ResolutionViewModel : BaseViewModel<int>
+    {
+        public int Width { get; set; }
+        public int Height { get; set; }
+        public long? Colors { get; set; }
+        public long? Palette { get; set; }
+        public bool Chars { get; set; }
+        public bool Grayscale { get; set; }
+
+        public long? PaletteView => Palette ?? Colors;
+
+        public override string ToString()
+        {
+            if(Chars)
+            {
+                if(Colors == null)
+                    return$"{Width}x{Height} characters";
+
+                if(Palette != null &&
+                   Colors  != Palette)
+                    return Grayscale ? $"{Width}x{Height} characters at {Colors} grays from a palette of {Palette}"
+                               : $"{Width}x{Height} characters at {Colors} colors from a palette of {Palette}";
+
+                return Colors == 2 && Grayscale ? $"{Width}x{Height} black and white characters"
+                           : $"{Width}x{Height} characters at {Colors} colors";
+            }
+
+            if(Colors == null)
+                return$"{Width}x{Height} pixels";
+
+            if(Palette != null &&
+               Colors  != Palette)
+                return Grayscale ? $"{Width}x{Height} pixels at {Colors} grays from a palette of {Palette}"
+                           : $"{Width}x{Height} pixels at {Colors} colors from a palette of {Palette}";
+
+            return Colors == 2 && Grayscale ? $"{Width}x{Height} black and white pixels"
+                       : $"{Width}x{Height} pixels at {Colors} colors";
+        }
+    }
+}