Project finish

Flashcards.nikosnick13/Controllers/FlashcardController.cs

@@ -0,0 +1,180 @@
+using Dapper;
+using Flashcards.nikosnick13.DTOs;
+using Flashcards.nikosnick13.Models;
+using Microsoft.Data.SqlClient;
+using static System.Console;
+using Spectre.Console;
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Configuration;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Flashcards.nikosnick13.UI;
+using Mapster;
+
+
+namespace Flashcards.nikosnick13.Controllers;
+
+internal class FlashcardController
+{
+    private string? connectionString = ConfigurationManager.AppSettings.Get("ConnectionString");
+
+
+    public void InsertFlashcart(BasicFlashcardDTO flashcards)
+    {
+        try
+        {
+            using var conn = new SqlConnection(connectionString);
+            conn.Open();
+
+            string query = @"INSERT INTO Flashcards(Stack_Id, Question, Answer) VALUES(@stackId, @question, @answer)";
+
+            conn.Execute(query, new {
+                stackId = flashcards.StackId, 
+                question = flashcards.Question, 
+                answer = flashcards.Answer
+            });
+
+
+            AnsiConsole.MarkupLine($"\n[blue]A flashcard with the question '{flashcards.Question}' was added to Stack ID {flashcards.StackId}![/]");
+
+            AnsiConsole.Prompt(new TextPrompt<string>("\nPress [green]Enter[/] to continue...").AllowEmpty());
+        }
+        catch(Exception ex)
+        {
+            AnsiConsole.MarkupLine($"[red]Error: {ex.Message}[/]");
+
+        }
+    }
+
+    public List<DetailFlashcardDTO> ViewAllFlashcards()
+    {
+        try
+        {
+            using var conn = new SqlConnection(connectionString);
+            conn.Open();
+
+            string query = @"SELECT Id, Question, Answer, Stack_Id AS StackId FROM Flashcards";
+
+            // Χρήση Dapper για την εκτέλεση του query
+            var flashcards = conn.Query<DetailFlashcardDTO>(query).ToList();
+
+            WriteLine(flashcards);
+
+            if (!flashcards.Any())
+            {
+                WriteLine("\n\nNo flashcards found.\n\n");
+            }
+
+            TableVisualisation.DisplayFlashcards(flashcards);
+            ReadKey();
+            return flashcards;
+        }
+        catch (Exception ex)
+        {
+            WriteLine("Error: " + ex.Message);
+            return new List<DetailFlashcardDTO>(); // Επιστροφή κενής λίστας σε περίπτωση σφάλματος
+        }
+    }
+
+    public Flashcard GetFlashcardById(int id)
+    {
+        try
+        {
+            using var conn = new SqlConnection(connectionString);
+            conn.Open();
+
+            string query = "SELECT Id, Question, Answer, Stack_Id FROM Flashcards WHERE Id = @Id";
+
+            var result = conn.QueryFirstOrDefault<Flashcard>(query, new { Id = id });
+
+            if (result == null)
+            {
+                WriteLine($"No Flashcard found with ID {id}");
+            }
+
+            return result;
+        }
+        catch (Exception ex)
+        {
+            WriteLine($"Error fetching Flashcard with ID {id}: {ex.Message}");
+            return null;
+        }
+    }
+
+    public void DeleteFlashcardById(int id) {
+
+        try {
+            using var conn = new SqlConnection(connectionString);
+
+            conn.Open();
+
+            string query = @"DELETE FROM Flashcards WHERE  Id = @id ";
+
+            var rowsAffected = conn.Execute(query, new { id });
+
+            if (rowsAffected > 0)
+            {
+                WriteLine($"Stack with ID {id} was deleted successfully.");
+                AnsiConsole.Prompt(new TextPrompt<string>("\nPress [green]Enter[/] to continue...").AllowEmpty());
+            }
+            else
+            {
+                WriteLine($"\n\nNo record found with Id {id}. Nothing was deleted preess any key to return..\n\n");
+            }
+        }
+        catch(Exception ex) {
+
+            WriteLine("Error " + ex.Message);
+        }
+
+    }
+
+    public void EditFlashcard(BasicFlashcardDTO basicFlashcardDTO) {
+
+        try {
+
+            using var conn = new SqlConnection(connectionString);
+
+            conn.Open();
+
+            string query = @"UPDATE Flashcards SET Question = @question, Answer = @answer,Stack_Id = @stack_id WHERE  Id = @id ";
+
+            conn.Execute(query, new
+            {
+                id = basicFlashcardDTO.Id,
+                question = basicFlashcardDTO.Question,
+                answer = basicFlashcardDTO.Answer,
+                stack_id = basicFlashcardDTO.StackId
+            });
+        } 
+        catch(Exception ex) {
+            WriteLine("Error " + ex.Message);
+        }
+
+    }
+
+    //TODO:
+    public DetailFlashcardDTO ViewFlashcardById(int id) {
+
+        try {
+            using var conn = new SqlConnection(connectionString);
+            conn.Open();
+
+            string query = "SELECT Id, Question, Answer, Stack_Id FROM Flashcards WHERE Id = @Id";
+
+            var result = conn.QueryFirstOrDefault<DetailFlashcardDTO>(query, new { Id = id });
+
+            return result;
+        }
+        catch(Exception ex){
+
+            WriteLine("Error: " + ex.Message);
+            return null;
+
+        }
+    }
+
+}

Flashcards.nikosnick13/Controllers/StackController.cs

@@ -0,0 +1,195 @@
+using Dapper;
+using Flashcards.nikosnick13.Models;
+using Microsoft.Data.SqlClient;
+using System;
+using static System.Console;
+using System.Collections.Generic;
+using System.Configuration;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using Flashcards.nikosnick13.UI;
+using Spectre.Console;
+using Flashcards.nikosnick13.DTOs;
+
+namespace Flashcards.nikosnick13.Controllers;
+
+internal class StackController
+{
+    static string? connectionString = ConfigurationManager.AppSettings.Get("ConnectionString");
+
+    public void InsertStack(Stack stack)
+    {
+        using var conn = new SqlConnection(connectionString);
+        conn.Open();
+
+        var checkQuery = @"SELECT COUNT(1) FROM Stacks WHERE Name = @name";
+        var exists = conn.ExecuteScalar<int>(checkQuery, new { name = stack.Name });
+
+        if (exists > 0)
+        {
+            AnsiConsole.MarkupLine("\n[red]A stack with this name already exists![/]");
+            AnsiConsole.Prompt(new TextPrompt<string>("\nPress [green]Enter[/] to continue...").AllowEmpty());
+            return;
+        }
+
+        string query = @"INSERT INTO Stacks (Name) VALUES (@name)";
+        conn.Execute(query, new { name = stack.Name });
+        AnsiConsole.MarkupLine($"\n[blue]A stack with this name {stack.Name} add to list![/]");
+        AnsiConsole.Prompt(new TextPrompt<string>("\nPress [green]Enter[/] to continue...").AllowEmpty());
+    }
+
+    public List<DetailStackDTO> ViewAllStacks() 
+    {
+        Clear();
+        List<DetailStackDTO> recordsList = new List<DetailStackDTO>();
+
+        try
+        {
+            using var conn = new SqlConnection(connectionString);
+            conn.Open();
+
+            string query = @"SELECT * FROM Stacks";
+
+            using var command = new SqlCommand(query, conn);
+
+            using var reader = command.ExecuteReader();
+
+            if (reader.HasRows)
+            {
+                while (reader.Read())
+                {
+                    recordsList.Add(new DetailStackDTO
+                    {
+                        Id = reader.GetInt32(0),
+                        Name = reader.GetString(1),
+                        Flashcard = null,  //  Αν υπάρχουν Flashcards, θα χρειαστεί πρόσθετο query
+                        StudySession = null  //  Αν υπάρχουν StudySession, θα χρειαστεί πρόσθετο query
+                    });
+                }
+            }
+            else WriteLine("\n\nNo rows fount\n\n");
+        }
+        catch (Exception ex)
+        {
+            WriteLine("Error: " + ex.Message);
+        }
+
+        TableVisualisation.ShowTable(recordsList);
+
+        return recordsList;
+
+    }
+
+
+    public Stack? GetById(int id) 
+    {
+        try
+        {
+            using var conn = new SqlConnection(connectionString);
+            conn.Open();
+
+            string query = @"SELECT * FROM Stacks WHERE Id = @id ";
+
+            var result = conn.QueryFirstOrDefault<Stack>(query, new {id});
+            return result;
+        }
+        catch(Exception ex)
+        {
+            WriteLine($"Error fetching Stack with ID {id}: {ex.Message}");
+            return null;
+        }
+
+    }
+
+    public void DeleteStackById(int id) 
+    {
+        try 
+        {
+            using var conn = new SqlConnection(connectionString);
+            conn.Open();
+
+            string query = @"DELETE FROM Stacks WHERE Id = @id";
+
+            var rowsAffected = conn.Execute(query, new { id });
+
+            if (rowsAffected > 0)
+            {
+                WriteLine($"Stack with ID {id} was deleted successfully.");
+                AnsiConsole.Prompt(new TextPrompt<string>("\nPress [green]Enter[/] to continue...").AllowEmpty());
+            }
+            else
+            {
+                WriteLine($"\n\nNo record found with Id {id}. Nothing was deleted preess any key to return..\n\n");
+                ReadKey();
+            }
+        } 
+        catch(Exception ex)
+        {
+            WriteLine("Error " + ex.Message);
+        }
+    }
+
+
+    public void EditStackById(BasicStackDTO basicStackDTO) 
+    {
+        try 
+        {
+            using var conn = new SqlConnection(connectionString);
+            conn.Open();
+
+            string query = @"UPDATE Stacks SET Name = @name WHERE Id = @id";
+
+            conn.Execute(query, new
+            {
+                name = basicStackDTO.Name,
+                id = basicStackDTO.Id
+            });
+        } 
+        catch(Exception ex) 
+        {
+            WriteLine("Error " + ex.Message);
+        }
+    }
+
+    public DetailStackDTO ViewStackById(int id)
+    {
+        try
+        {
+            using var conn = new SqlConnection(connectionString);
+            conn.Open();
+
+            string query = @"SELECT Id, Name FROM Stacks WHERE Id = @id";
+
+            // Επιστρέφει DetailStackDTO
+            return conn.QueryFirstOrDefault<DetailStackDTO>(query, new { id });
+        }
+        catch (Exception ex)
+        {
+            WriteLine("Error: " + ex.Message);
+            return null;
+        }
+    }
+
+    // ViewAllStack: this method return list.Interact with flashcardsUI
+    public List<DetailStackDTO> ViewAllStack()
+    {
+        try
+        {
+            using var conn = new SqlConnection(connectionString);
+            conn.Open();
+
+            string query = @"SELECT Id, Name FROM Stacks";
+
+            var stacks = conn.Query<DetailStackDTO>(query).ToList();
+
+            return stacks;
+        }
+        catch (Exception ex)
+        {
+            WriteLine($"Error fetching stacks: {ex.Message}");
+            return new List<DetailStackDTO>();  
+        }
+    }
+
+}