From aaa49788dc936dd66790997f17c99fa9b26e5e24 Mon Sep 17 00:00:00 2001
From: Paul Schneider <paulschneider@free.fr>
Date: Tue, 22 Jun 2021 00:10:01 +0100
Subject: [PATCH] autocomplete

---
 src/nuget-host/Controllers/HomeController.cs  | 14 +++++--
 .../Controllers/PackagesController.cs         | 38 +++++++++++++++----
 .../ViewModels/HomeIndexViewModel.cs          |  7 ++++
 src/nuget-host/Views/Home/Index.cshtml        |  7 ++--
 4 files changed, 52 insertions(+), 14 deletions(-)
 create mode 100644 src/nuget-host/ViewModels/HomeIndexViewModel.cs

diff --git a/src/nuget-host/Controllers/HomeController.cs b/src/nuget-host/Controllers/HomeController.cs
index fa9346b..645d85e 100644
--- a/src/nuget-host/Controllers/HomeController.cs
+++ b/src/nuget-host/Controllers/HomeController.cs
@@ -1,11 +1,11 @@
-using System.Threading.Tasks;
-using Microsoft.AspNetCore.DataProtection;
-using Microsoft.AspNetCore.Hosting;
+using Microsoft.AspNetCore.Hosting;
 using Microsoft.AspNetCore.Mvc;
 using Microsoft.Extensions.Logging;
 using Microsoft.Extensions.Options;
 using nuget_host.Entities;
 using nuget_host.Data;
+using System.Linq;
+using nuget_host.ViewModels;
 
 namespace nuget_host.Controllers
 {
@@ -15,19 +15,25 @@ namespace nuget_host.Controllers
         readonly IHostingEnvironment _environment;
         public SmtpSettings _smtpSettings { get; } //set only via Secret Manager
 
+        private ApplicationDbContext _dbContext;
+
         public HomeController(
             IOptions<SmtpSettings> smtpSettings,
             IHostingEnvironment environment,
+            ApplicationDbContext dbContext,
             ILogger<HomeController> logger)
         {
             _environment = environment;
             _logger = logger;
             _smtpSettings = smtpSettings.Value;
+            _dbContext = dbContext;
         }
         
         public IActionResult Index()
         {
-            return View();
+            return View(new HomeIndexViewModel{
+                PkgCount = _dbContext.Packages.Count()
+                });
         }
 
         public IActionResult About()
diff --git a/src/nuget-host/Controllers/PackagesController.cs b/src/nuget-host/Controllers/PackagesController.cs
index 760f768..12c9616 100644
--- a/src/nuget-host/Controllers/PackagesController.cs
+++ b/src/nuget-host/Controllers/PackagesController.cs
@@ -33,7 +33,7 @@ namespace nuget_host.Controllers
             this.dbContext = dbContext;
         }
 
-
+        const string defaultSemVer = "2.0.0";
         // dotnet add . package -s http://localhost:5000/packages nuget-cli
         // packages/FindPackagesById()?id='nuget-cli'&semVerLevel=2.0.0
 
@@ -43,11 +43,11 @@ namespace nuget_host.Controllers
         [HttpGet("~/search/index.json")]
         public IActionResult Index(
             string q,
+            string semVerLevel = defaultSemVer,
             bool prerelease = false,
             string packageType = null,
             int skip = 0,
-            int take = 25,
-            string semVerLevel = "2.0.0")
+            int take = 25)
         {
             if (string.IsNullOrEmpty(q))
             {
@@ -56,14 +56,15 @@ namespace nuget_host.Controllers
             }
             else
             {
-                var scope =  dbContext.Packages
+                var scope = dbContext.Packages
                 .Include(p => p.Versions)
                 .Where(
                     p => (CamelCaseMatch(p.Id, q) || SeparatedByMinusMatch(p.Id, q))
                     && (prerelease || p.Versions.Any(v => !v.IsPrerelease))
                     && (packageType == null || p.Versions.Any(v => v.Type == packageType))
                 );
-                var result = new {
+                var result = new
+                {
                     totalHits = scope.Count(),
                     data = scope.Skip(skip).Take(take).ToArray()
                 };
@@ -75,13 +76,13 @@ namespace nuget_host.Controllers
         {
             // Assert.False (q==null);
             string query = q;
-            if (query.Length==0) return false;
+            if (query.Length == 0) return false;
 
             while (id.Length > 0)
             {
                 int i = 0;
                 while (id.Length > i && char.IsLower(id[i])) i++;
-                if (i==0) break;
+                if (i == 0) break;
                 id = id.Substring(i);
                 if (id.StartsWith(q, System.StringComparison.OrdinalIgnoreCase)) return true;
             }
@@ -95,5 +96,28 @@ namespace nuget_host.Controllers
             }
             return false;
         }
+        // GET /autocomplete?id=nuget.protocol&prerelease=true
+        [HttpGet("~/autocomplete")]
+        public IActionResult AutoComplete(
+            string id,
+            string semVerLevel = defaultSemVer,
+            bool prerelease = false,
+            string packageType = null,
+            int skip = 0,
+            int take = 25)
+        {
+            return Ok(new
+            {
+                data =
+                     dbContext.PackageVersions.Where(
+                         v => v.PackageId == id
+                            && (prerelease || !v.IsPrerelease)
+                            && (packageType == null || v.Type == packageType)
+                     ).Select(v => v.FullString)
+                     .Skip(skip).Take(take).ToArray()
+            });
+        }
+
+
     }
 }
\ No newline at end of file
diff --git a/src/nuget-host/ViewModels/HomeIndexViewModel.cs b/src/nuget-host/ViewModels/HomeIndexViewModel.cs
new file mode 100644
index 0000000..65a8410
--- /dev/null
+++ b/src/nuget-host/ViewModels/HomeIndexViewModel.cs
@@ -0,0 +1,7 @@
+namespace nuget_host.ViewModels
+{
+    public class HomeIndexViewModel
+    {
+        public int PkgCount { get; set; }
+    }
+}
\ No newline at end of file
diff --git a/src/nuget-host/Views/Home/Index.cshtml b/src/nuget-host/Views/Home/Index.cshtml
index b46d9cb..5d8ccb8 100644
--- a/src/nuget-host/Views/Home/Index.cshtml
+++ b/src/nuget-host/Views/Home/Index.cshtml
@@ -1,12 +1,13 @@
-@{
+@model HomeIndexViewModel
+@{
     ViewData["Title"] = "Home Page";
 }
 
 <div class="text-center">
     <h1 class="display-4">Welcome</h1>
-    <p>Learn about <a href="https://docs.microsoft.com/aspnet/core">building Web apps with ASP.NET Core</a>.</p>
     <h1>
         <img src="~/icon.jpg">
-        Welcome to Nuget host
+        Welcome to Apple
     </h1>
+    <strong>@Model.PkgCount identifiant(s) de paquet dans le SI</strong>
 </div>