Implemented program

MeetTheTeacher/Program.cs

@@ -56,10 +56,20 @@ static void WriteRule(string text)
 
 static IEnumerable<Teacher> LoadData(bool realData)
 {
-    // TODO
+    string generalDataFilePath = "Data/teachers.csv";
-    // ITeacherDataImporter importer ...
+    string businessCardDataFilePath = "Data/teachers-with-business-card.csv";
-    // files: "Data/teachers.csv" & "Data/teachers-with-business-card.csv"
+    
-    return null!;
+    if (!File.Exists(generalDataFilePath))
+    {
+        AnsiConsole.MarkupLine($"[red]Error:[/] File '{generalDataFilePath}' not found");
+        return [];
+    }
+    
+    ITeacherDataImporter importer = realData 
+        ? new TeacherDataCsvImporter(generalDataFilePath, businessCardDataFilePath)
+        : new TeacherDataFakeImporter();
+    
+    return importer.LoadTeacherData();
 }
 
 static Task DisplayFakeProgress()
@@ -90,7 +100,15 @@ static void PrintStatistics(IReadOnlyCollection<Teacher> teachers)
     var hasBusinessCard = 0;
     foreach (var teacher in teachers)
     {
-        // TODO
+        if (teacher.ConsultingHour != null)
+        {
+            hasConsultingHours++;
+        }
+        
+        if (teacher is TeacherWithBusinessCard)
+        {
+            hasBusinessCard++;
+        }
     }
 
     double total = teachers.Count;
@@ -130,8 +148,15 @@ static SortOrder AskForSortOrder()
 
 static ExportFormat AskForExportFormat()
 {
-    // TODO (similar to AskForDataToUse)
+    const string Csv = "Csv";
-    return default;
+    const string Html = "Html";
+    string dataToUse = AnsiConsole.Prompt(new SelectionPrompt<string>()
+                                          .Title("Do you want to load [blue]real[/] or [blue]sample[/] data?")
+                                          .AddChoices(Csv, Html));
+
+    AnsiConsole.MarkupLine($"Selected: [green]{dataToUse}[/]");
+
+    return dataToUse == Csv ? ExportFormat.Csv : ExportFormat.Html;
 }
 
 static bool AskForDataToUse()