From f610664230365a0b05b761010846e895594b3ed7 Mon Sep 17 00:00:00 2001
From: Ryan Peters <ryanpeters@microsoft.com>
Date: Tue, 7 Feb 2023 12:21:22 -0500
Subject: [PATCH] early work on supporting multiple files

---
 Controllers/HomeController.cs |  5 +++--
 NoteHub.cs                    |  4 ++--
 Services/FileNoteService.cs   | 37 +++++++++++++++++++++++------------
 Services/INoteService.cs      |  4 ++--
 appsettings.json              |  2 +-
 wwwroot/js/site.js            |  6 ++++--
 6 files changed, 36 insertions(+), 22 deletions(-)

diff --git a/Controllers/HomeController.cs b/Controllers/HomeController.cs
index c280efe..be8ae83 100644
--- a/Controllers/HomeController.cs
+++ b/Controllers/HomeController.cs
@@ -12,9 +12,10 @@ public class HomeController : Controller
         this.noteService = noteService;
     }
 
-    public IActionResult Index()
+    [Route("{noteName?}")]
+    public IActionResult Index(string? noteName)
     {
-        var content = noteService.Get();
+        var content = noteService.Get(noteName);
 
         return View((object)content);
     }
diff --git a/NoteHub.cs b/NoteHub.cs
index 881105b..057f101 100644
--- a/NoteHub.cs
+++ b/NoteHub.cs
@@ -12,9 +12,9 @@ namespace BinaryDad.Notes
             this.noteService = noteService;
         }
 
-        public async Task SaveNote(string content)
+        public async Task SaveNote(string content, string? noteName)
         {
-            noteService.Save(content);
+            noteService.Save(content, noteName);
 
             await Clients.Others.SendAsync("updateNote", content);
         }
diff --git a/Services/FileNoteService.cs b/Services/FileNoteService.cs
index 82137bb..edef53d 100644
--- a/Services/FileNoteService.cs
+++ b/Services/FileNoteService.cs
@@ -2,27 +2,38 @@
 {
     public class FileNoteService : INoteService
     {
-        private readonly string? filePath;
+        private readonly string? defaultFileName;
 
         public FileNoteService(IConfiguration configuration)
         {
-            filePath = configuration["ContentFilePath"];
+            defaultFileName = configuration["ContentFilePath"];
+
+            CheckFile(defaultFileName);
+        }
+
+        public string Get(string? noteName)
+        {
+            CheckFile(noteName);
+
+            return File.ReadAllText(GetFileName(noteName));
+        }
+
+        public void Save(string content, string? noteName)
+        {
+            File.WriteAllText(GetFileName(noteName), content);
+        }
+
+        private void CheckFile(string noteName)
+        {
+            var fileName = GetFileName(noteName);
 
             // ensure initialized
-            if (!File.Exists(filePath))
+            if (!File.Exists(fileName))
             {
-                Save("Hi! Feel free to start typing. Everything will be saved soon after you are done typing.");
+                Save("Hi! Feel free to start typing. Everything will be saved soon after you are done typing.", fileName);
             }
         }
 
-        public string Get()
-        {
-            return File.ReadAllText(filePath);
-        }
-
-        public void Save(string content)
-        {
-            File.WriteAllText(filePath, content);
-        }
+        private string GetFileName(string? noteName) => string.IsNullOrWhiteSpace(noteName) ? defaultFileName : noteName;
     }
 }
diff --git a/Services/INoteService.cs b/Services/INoteService.cs
index 4aac958..2451e08 100644
--- a/Services/INoteService.cs
+++ b/Services/INoteService.cs
@@ -2,7 +2,7 @@
 {
     public interface INoteService
     {
-        string Get();
-        void Save(string content);
+        string Get(string? noteName);
+        void Save(string content, string? noteName);
     }
 }
diff --git a/appsettings.json b/appsettings.json
index 46d38c3..ad4f7fe 100644
--- a/appsettings.json
+++ b/appsettings.json
@@ -6,5 +6,5 @@
     }
   },
   "AllowedHosts": "*",
-  "ContentFilePath": "content.txt"
+  "ContentFilePath": "content"
 }
diff --git a/wwwroot/js/site.js b/wwwroot/js/site.js
index 6aa913e..4ff5e9e 100644
--- a/wwwroot/js/site.js
+++ b/wwwroot/js/site.js
@@ -1,4 +1,6 @@
-let connection = new signalR.HubConnectionBuilder()
+const noteName = document.location.pathname.substring(1);
+
+let connection = new signalR.HubConnectionBuilder()
     .withAutomaticReconnect()
     .withUrl("/noteHub")
     .build();
@@ -29,7 +31,7 @@ function saveContent($textarea) {
 
     var content = $textarea.val();
 
-    connection.invoke('SaveNote', content).then(function () {
+    connection.invoke('SaveNote', content, noteName).then(function () {
         showToast('#saved-indicator');
     }).catch(function (err) {
         console.error(err.toString());