Finished Flashcards Console Application

Flashcards.davetn657/Controllers/CardController.cs

@@ -0,0 +1,197 @@
+using Flashcards.davetn657.Models;
+using Flashcards.davetn657.Models.DTOs;
+using Flashcards.davetn657.Models.Enums;
+using Microsoft.Data.SqlClient;
+using Microsoft.Extensions.Configuration;
+using System.Data;
+
+namespace Flashcards.davetn657.Controllers;
+
+public class CardController 
+{
+    private IConfiguration configuration;
+    private string? connectionString;
+
+    public CardController() 
+    {
+        this.configuration = new ConfigurationBuilder()
+            .SetBasePath(Directory.GetCurrentDirectory())
+            .AddJsonFile("appsettings.json")
+            .Build();
+        this.connectionString = configuration.GetConnectionString("DatabaseConnection");
+    }
+
+    internal void AddCard(CardDto card, StackDto stack)
+    {
+        using (SqlConnection connection = new SqlConnection(connectionString))
+        {
+            connection.Open();
+
+            var tableCmd = connection.CreateCommand();
+            tableCmd.CommandText = @"INSERT INTO CARDS (StackId, CardQuestion, CardAnswer)
+                                    VALUES (@StackId, @Question, @Answer)";
+
+            tableCmd.Parameters.Add("@StackId", SqlDbType.Int).Value = stack.Id;
+            tableCmd.Parameters.Add("@Question", SqlDbType.Text).Value = card.Question;
+            tableCmd.Parameters.Add("@Answer", SqlDbType.Text).Value = card.Answer;
+
+            tableCmd.ExecuteNonQuery();
+
+            connection.Close();
+        }
+    }
+
+    internal void RemoveCard(CardDto card)
+    {
+        using (var connection = new SqlConnection(connectionString))
+        {
+            connection.Open();
+
+            var tableCmd = connection.CreateCommand();
+            tableCmd.CommandText = @"DELETE FROM CARDS
+                                    WHERE CardId = @Id";
+
+            tableCmd.Parameters.Add("@Id", SqlDbType.Int).Value = card.Id;
+
+            tableCmd.ExecuteNonQuery();
+
+            connection.Close();
+        }
+
+    }
+
+    internal void RemoveCard(StackDto stack)
+    {
+        using (var connection = new SqlConnection(connectionString))
+        {
+            connection.Open();
+
+            var tableCmd = connection.CreateCommand();
+            tableCmd.CommandText = @"DELETE FROM CARDS
+                                    WHERE StackId = @Id";
+
+            tableCmd.Parameters.Add("@Id", SqlDbType.Int).Value = stack.Id;
+
+            tableCmd.ExecuteNonQuery();
+
+            connection.Close();
+        }
+
+    }
+
+    internal void EditCard(CardDto card, Enum option)
+    {
+        using(var connection = new SqlConnection(connectionString))
+        {
+            connection.Open();
+
+            var tableCmd = connection.CreateCommand();
+
+            if (option.Equals(EditCardOptions.ChangeAnswer))
+            {
+                tableCmd.CommandText = @"UPDATE CARDS
+                                        SET CardAnswer = @Answer
+                                        WHERE CardId = @id";
+                tableCmd.Parameters.Add("@Answer", SqlDbType.Text).Value = card.Answer;
+            }
+            else if(option.Equals(EditCardOptions.ChangeQuestion))
+            {
+                tableCmd.CommandText = @"UPDATE CARDS
+                                        SET CardQuestion = @Question
+                                        WHERE CardId = @id";
+                tableCmd.Parameters.Add("@Question", SqlDbType.Text).Value = card.Question;
+            }
+
+            tableCmd.Parameters.Add("@Id", SqlDbType.Int).Value = card.Id;
+            tableCmd.ExecuteNonQuery();
+
+            connection.Close();
+        }
+    }
+
+    internal void ChangeTime(CardDto card, DateTime timeChange)
+    {
+        using (var connection = new SqlConnection(connectionString))
+        {
+            connection.Open();
+
+            var tableCmd = connection.CreateCommand();
+            tableCmd.CommandText = @"UPDATE CARDS
+                                    SET LastAppearance = @today,
+                                        NextAppearance = @time
+                                    WHERE CardId = @id";
+
+            tableCmd.Parameters.Add("@today", SqlDbType.DateTime).Value = DateTime.Now;
+            tableCmd.Parameters.Add("@time", SqlDbType.DateTime).Value = timeChange;
+            tableCmd.Parameters.Add("@id", SqlDbType.Int).Value = card.Id;
+
+            tableCmd.ExecuteNonQuery();
+
+            connection.Close();
+        }
+    }
+
+    internal Dictionary<string, CardDto> ReadAllCards()
+    {
+        var allCards = new Dictionary<string, CardDto>();
+
+        using (var connection = new SqlConnection(connectionString))
+        {
+            connection.Open();
+
+            var tabldCmd = connection.CreateCommand();
+            tabldCmd.CommandText = @"SELECT * FROM CARDS";
+
+            var reader = tabldCmd.ExecuteReader();
+
+            while (reader.Read())
+            {
+                var card = new CardDto();
+                card.Id = reader.GetInt32("CardId");
+                card.Question = reader.GetString("CardQuestion");
+                card.Answer = reader.GetString("CardAnswer");
+                card.LastAppearance = reader.GetDateTime("LastAppearance");
+                card.NextAppearance = reader.GetDateTime("NextAppearance");
+                allCards.Add(card.Question, card);
+            }
+
+            connection.Close();
+        }
+
+        return allCards;
+    }
+
+    internal Dictionary<string, CardDto> ReadAllCards(StudyDto session)
+    {
+        var allCards = new Dictionary<string, CardDto>();
+
+        using(var connection = new SqlConnection(connectionString))
+        {
+            connection.Open();
+
+            var tableCmd = connection.CreateCommand();
+            tableCmd.CommandText = @"SELECT * FROM CARDS
+                                    WHERE StackId = @id
+                                    ORDER BY NextAppearance DESC";
+
+            tableCmd.Parameters.Add("@Id", SqlDbType.Int).Value = session.StackId;
+
+            var reader = tableCmd.ExecuteReader();
+
+            while (reader.Read())
+            {
+                var card = new CardDto();
+                card.Id = reader.GetInt32("CardId");
+                card.Question = reader.GetString("CardQuestion");
+                card.Answer = reader.GetString("CardAnswer");
+                card.LastAppearance = reader.GetDateTime("LastAppearance");
+                card.NextAppearance = reader.GetDateTime("NextAppearance");
+                allCards.Add(card.Question, card);
+            }
+
+            connection.Close();
+        }
+
+        return allCards;
+    }
+}

Flashcards.davetn657/Controllers/ScoreController.cs

@@ -0,0 +1,77 @@
+using Flashcards.davetn657.Models.DTOs;
+using Microsoft.Data.SqlClient;
+using Microsoft.Extensions.Configuration;
+using System.Data;
+
+namespace Flashcards.davetn657.Controllers;
+
+public class ScoreController
+{
+    private IConfiguration configuration;
+    private string? connectionString;
+
+    public ScoreController()
+    {
+        this.configuration = new ConfigurationBuilder()
+            .SetBasePath(Directory.GetCurrentDirectory())
+            .AddJsonFile("appsettings.json")
+            .Build();
+        this.connectionString = configuration.GetConnectionString("DatabaseConnection");
+    }
+
+    internal void AddScore(StudyDto session, ScoreDto score)
+    {
+        using (var connection = new SqlConnection(connectionString))
+        {
+            connection.Open();
+
+            var tableCmd = connection.CreateCommand();
+            tableCmd.CommandText = @"INSERT INTO SCORES (SessionId, Score)
+                                    VALUES (@id, @score)";
+
+            tableCmd.Parameters.Add("@id", SqlDbType.Int).Value = session.Id;
+            tableCmd.Parameters.Add("@score", SqlDbType.Int).Value = score.Score;
+
+            tableCmd.ExecuteNonQuery();
+
+            connection.Close();
+        }
+    }
+
+    internal List<ScoreDto> GetScores(int numberOfDays)
+    {
+        var pastScores = new List<ScoreDto>();
+
+        using (var connection = new SqlConnection(connectionString))
+        {
+            connection.Open();
+
+            var tableCmd = connection.CreateCommand();
+            tableCmd.CommandText = @"SELECT Sessions.StackId, Sessions.SessionName, Scores.Score, Scores.CreateDate
+                                    FROM Sessions
+                                    LEFT JOIN Scores ON Sessions.SessionId = Scores.SessionId
+                                    WHERE CAST(Scores.CreateDate AS DATE) >= DATEADD(day, @numDays, GETDATE())
+                                    GROUP BY Sessions.StackId, Sessions.SessionName, Scores.Score, Scores.CreateDate
+                                    ORDER BY Scores.CreateDate DESC";
+
+            tableCmd.Parameters.Add("@numDays", SqlDbType.Int).Value = -numberOfDays;
+
+            var reader = tableCmd.ExecuteReader();
+
+            while (reader.Read())
+            {
+                var data = new ScoreDto();
+                data.SessionId = reader.GetInt32("StackId");
+                data.Name = reader.GetString("SessionName");
+                data.Score = reader.GetInt32("Score");
+                data.CreateDate = reader.GetDateTime("CreateDate");
+
+                pastScores.Add(data);
+            }
+
+            connection.Close();
+        }
+
+        return pastScores;
+    }
+}