fixed filepath io and finalized for release

1 files changed, 26 insertions, 3 deletions

diff --git a/src/Program/Program.cs b/src/Program/Program.cs
index f4c83d1..9985c10 100644
--- a/src/Program/Program.cs
+++ b/src/Program/Program.cs
@@ -9,13 +9,14 @@ namespace ClosestPair
     {
         public static void Main(string[] args)
         {
-            FileInfo inputFile = (args.Length > 0) ? new FileInfo(args[0]) : new FileInfo("points1.txt");
+            FileInfo inputFile = (args.Length > 0) ? new FileInfo(args[0]) : ReadFileName();
 
-            if (!inputFile.Exists) {
+            if (!inputFile.Exists)
+            {
                 Console.WriteLine($"Failed to open {inputFile}: File does not exist.");
                 return;
             }
-            
+
             Stopwatch stopWatch = new Stopwatch();
             stopWatch.Start();
             Point[] points = PointFile.ReadFile(inputFile.FullName);
@@ -28,6 +29,28 @@ namespace ClosestPair
             Console.WriteLine($"Closest Points: {closestPair.ToString("F3")}");
             Console.WriteLine($"Runtime: {ts.ToString("mm\\:ss\\.ff")}");
         }
+        public static FileInfo ReadFileName()
+        {
+            FileInfo file = new FileInfo(" ");
+            string? filePath;
+            
+            while (true)
+            {
+                Console.Write("Enter a path to a points file: ");
+                filePath = Console.ReadLine();
+
+                if (String.IsNullOrEmpty(filePath))
+                    Console.WriteLine("File path cannot be empty!");
+                else if (!System.IO.File.Exists(filePath))
+                    Console.WriteLine($"{filePath} does not exist.");
+                else
+                    break;
+            }
+
+            file = new FileInfo(filePath);
+
+            return file;
+        }
     }
 
 }
\ No newline at end of file