From e6a2db0753b09052c83db7f0bda59e68911f24a5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Simon=20L=C3=BCbe=C3=9F?= <simon.luebess@gmail.com>
Date: Tue, 10 Oct 2023 18:56:05 +0200
Subject: [PATCH] Gallery verwendet Datenbank
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

- Menü: Fixed typo in Gallerie
- Datenbanken-Funktionen dokumentiert
---
 DataAccess/Data/BildInfoData.cs               | 31 ++++++---
 DataAccess/Data/WunschInfoData.cs             | 11 ++++
 DataAccess/DbAccess/ISqlDataAccess.cs         | 23 ++++++-
 DataAccess/DbAccess/SqlDataAccess.cs          |  9 ++-
 KIKunstKirstenKlöckner/Pages/Gallery.razor    | 65 +++++--------------
 .../Shared/MainLayout.razor                   |  2 +-
 KiKunstDatenbank/KiKunstDatenbank.sqlproj     |  2 +
 .../StoredProcedures/spBildInfo_GetAll.sql    |  6 ++
 .../dpo/StoredProcedures/spWunschInfo_Get.sql |  8 +++
 9 files changed, 94 insertions(+), 63 deletions(-)
 create mode 100644 KiKunstDatenbank/dpo/StoredProcedures/spBildInfo_GetAll.sql
 create mode 100644 KiKunstDatenbank/dpo/StoredProcedures/spWunschInfo_Get.sql

diff --git a/DataAccess/Data/BildInfoData.cs b/DataAccess/Data/BildInfoData.cs
index 86245a7..e2def08 100644
--- a/DataAccess/Data/BildInfoData.cs
+++ b/DataAccess/Data/BildInfoData.cs
@@ -1,14 +1,11 @@
-using System;
-using System.Collections.Generic;
-using System.Linq;
-using System.Runtime.CompilerServices;
-using System.Text;
-using System.Threading.Tasks;
-using DataAccess.DbAccess;
+using DataAccess.DbAccess;
 using DataAccess.Models;
 
 namespace DataAccess.Data;
 
+/// <summary>
+/// Ermöglicht den Zugriff auf die BildInfo Datenbank.
+/// </summary>
 public class BildInfoData
 {
     private readonly ISqlDataAccess _db;
@@ -18,18 +15,34 @@ public class BildInfoData
         _db = db;
     }
 
+    /// <summary>
+    /// Fügt die gegebene BildInfo zur Datenbank hinzu und aktualisiert das <see cref="BildInfoModel.Id"/>-Feld mit dem entsprechenden Wert.
+    /// </summary>
+    /// <param name="bildInfo">Die BildInfo, die zur Datenbank hinzugefügt werden soll.</param>
     public async Task AddBildInfoAsync(BildInfoModel bildInfo)
     {
         var id = await _db.LoadData<int, BildInfoModel>("dbo.spBildInfo_Insert", bildInfo);
         bildInfo.Id = id.Single();
     }
     
-    public async Task UpdateBildInfoDateinameAsync(BildInfoModel bildInfo)
+    /// <summary>
+    /// Aktualisiert das Dateiname-Feld der übergebenen BildInfo in der Datenbank.
+    /// </summary>
+    /// <param name="bildInfo">Die BildInfo deren Dateiname aktualisiert werden soll.</param>
+    public Task UpdateBildInfoDateinameAsync(BildInfoModel bildInfo)
     {
-        await _db.SaveData("dbo.spBildInfo_UpdateFileName",
+        return _db.SaveData("dbo.spBildInfo_UpdateFileName",
         new {
             Id = bildInfo.Id,
             Dateiname = bildInfo.Dateiname,
         });
     }
+
+    /// <summary>
+    /// Gibt alle Bild Infos der Datenbank zurück.
+    /// </summary>
+    public Task<IEnumerable<BildInfoModel>> GetAllBildInfosAsync()
+    {
+        return _db.LoadData<BildInfoModel, dynamic>("dbo.spBildInfo_GetAll", new { });
+    }
 }
diff --git a/DataAccess/Data/WunschInfoData.cs b/DataAccess/Data/WunschInfoData.cs
index c1d467e..26e0854 100644
--- a/DataAccess/Data/WunschInfoData.cs
+++ b/DataAccess/Data/WunschInfoData.cs
@@ -22,4 +22,15 @@ public class WunschInfoData
         var id = await _db.LoadData<int, WunschInfoModel>("dbo.spWunschInfo_Insert", wunschInfo);
         wunschInfo.Id = id.Single();
     }
+
+    /// <summary>
+    /// Gibt die WunschInfo mit der gegebenen Id zurück.
+    /// </summary>
+    /// <param name="wunschId">Die Id der zu ladenen WunschInfo</param>
+    /// <returns>Die WunschInfo mit der gegebenen Id</returns>
+    public async Task<WunschInfoModel> GetWunschInfoAsync(int wunschId)
+    {
+        var wunschInfo = await _db.LoadData<WunschInfoModel, dynamic>("dbo.spWunschInfo_Get", new { Id = wunschId });
+        return wunschInfo.Single();
+    }
 }
diff --git a/DataAccess/DbAccess/ISqlDataAccess.cs b/DataAccess/DbAccess/ISqlDataAccess.cs
index ed3232e..c1a2103 100644
--- a/DataAccess/DbAccess/ISqlDataAccess.cs
+++ b/DataAccess/DbAccess/ISqlDataAccess.cs
@@ -1,7 +1,26 @@
 namespace DataAccess.DbAccess;
 
+/// <summary>
+/// Bietet lesenden und schreibenden Zugriff auf eine Datenbank.
+/// </summary>
 public interface ISqlDataAccess
 {
-    Task<IEnumerable<T>> LoadData<T, U>(string storedProcedure, U parameters, string connectionId = "Default");
-    Task SaveData<T>(string storedProcedure, T parameters, string connectionId = "Default");
+    /// <summary>
+    /// Führt die angegebene Stored Procedure aus. Diese Prozedur nimmt Parameter des Typs <see cref="TParameter"/> engegen und gibt ein Enumerable des Typs <see cref="TResult"/> zurück.
+    /// </summary>
+    /// <typeparam name="TResult">Der Typ der Parameter</typeparam>
+    /// <typeparam name="TParameter">Der Typ der Rückgabewerte</typeparam>
+    /// <param name="storedProcedure">Der Name der Prozedur</param>
+    /// <param name="parameters">Die Parameter für die Prozedur.</param>
+    /// <param name="connectionId">Die optionale Id des zu verwendenen Connection Strings.</param>
+    Task<IEnumerable<TResult>> LoadData<TResult, TParameter>(string storedProcedure, TParameter parameters, string connectionId = "Default");
+    
+    /// <summary>
+    /// Führt die angegebene Stored Procedure aus. Diese Prozedur nimmt Parameter des Typs <see cref="TParameter"/> engegen und gibt nichts zurück.
+    /// </summary>
+    /// <typeparam name="TParameter">Der Typ der Parameter</typeparam>
+    /// <param name="storedProcedure">Der Name der Prozedur</param>
+    /// <param name="parameters">Die Parameter für die Prozedur.</param>
+    /// <param name="connectionId">Die optionale Id des zu verwendenen Connection Strings.</param>
+    Task SaveData<TParameter>(string storedProcedure, TParameter parameters, string connectionId = "Default");
 }
\ No newline at end of file
diff --git a/DataAccess/DbAccess/SqlDataAccess.cs b/DataAccess/DbAccess/SqlDataAccess.cs
index f5edcf0..1a331aa 100644
--- a/DataAccess/DbAccess/SqlDataAccess.cs
+++ b/DataAccess/DbAccess/SqlDataAccess.cs
@@ -5,6 +5,9 @@ using Dapper;
 
 namespace DataAccess.DbAccess;
 
+/// <summary>
+/// Bietet lesenden und schreibenden Zugriff auf eine Datenbank.
+/// </summary>
 public class SqlDataAccess : ISqlDataAccess
 {
     private readonly IConfiguration _config;
@@ -14,14 +17,14 @@ public class SqlDataAccess : ISqlDataAccess
         _config = config;
     }
     
-    public async Task<IEnumerable<T>> LoadData<T, U>(string storedProcedure, U parameters, string connectionId = "Default")
+    public async Task<IEnumerable<TResult>> LoadData<TResult, TParameter>(string storedProcedure, TParameter parameters, string connectionId = "Default")
     {
         using IDbConnection connection = new SqlConnection(_config.GetConnectionString(connectionId));
 
-        return await connection.QueryAsync<T>(storedProcedure, parameters, commandType: CommandType.StoredProcedure);
+        return await connection.QueryAsync<TResult>(storedProcedure, parameters, commandType: CommandType.StoredProcedure);
     }
     
-    public async Task SaveData<T>(string storedProcedure, T parameters, string connectionId = "Default")
+    public async Task SaveData<TParameter>(string storedProcedure, TParameter parameters, string connectionId = "Default")
     {
         using IDbConnection connection = new SqlConnection(_config.GetConnectionString(connectionId));
 
diff --git a/KIKunstKirstenKlöckner/Pages/Gallery.razor b/KIKunstKirstenKlöckner/Pages/Gallery.razor
index 94554da..9196388 100644
--- a/KIKunstKirstenKlöckner/Pages/Gallery.razor
+++ b/KIKunstKirstenKlöckner/Pages/Gallery.razor
@@ -1,5 +1,11 @@
 @page "/gallery"
 
+@using DataAccess.Data
+@using DataAccess.Models
+
+@inject BildInfoData BildInfoData;
+@inject WunschInfoData WunschInfoData;
+
 <style>
     .image-grid {
         background-color: white; /* Hintergrund der RadzenDataList weiß machen */
@@ -57,12 +63,12 @@
 </style>
 
 <div>
-    <RadzenDataList WrapItems="@true" AllowPaging="true" Data="@imagePaths" PageSize="20" PagerHorizontalAlign="HorizontalAlign.Left" ShowPagingSummary="true" class="image-grid">
-        <Template Context="imagePath">
+    <RadzenDataList WrapItems="@true" AllowPaging="true" Data="@_bildInfos" PageSize="20" PagerHorizontalAlign="HorizontalAlign.Left" ShowPagingSummary="true" class="image-grid">
+        <Template Context="bildInfo">
             <div class="image-grid-item">
                 <RadzenCard Style="width: 200px; height: 200px; padding: 0; border: none;">
-                    <RadzenButton Click="@(args => ShowImageInfo(imagePath))">
-                        <RadzenImage Src="@imagePath" Style="width: 100%; height: 100%; object-fit: cover;" />
+                    <RadzenButton Click="@(args => ShowImageInfo(bildInfo))">
+                        <RadzenImage Src="@bildInfo.Dateiname" Style="width: 100%; height: 100%; object-fit: cover;" />
                     </RadzenButton>
                 </RadzenCard>
             </div>
@@ -83,63 +89,26 @@
 </div>
 
 @code {
-    List<string> imagePaths = new List<string>();
     string selectedImage;
     string infoText = "Info Text";
     string popupStyle = "display: none;";
 
+    IEnumerable<BildInfoModel>? _bildInfos;
+
     protected override async Task OnInitializedAsync()
     {
         await base.OnInitializedAsync();
 
-        // Get the physical path to the folder
-        string folderPath = Path.Combine(_environment.WebRootPath, "generated_images");
-
-        if (Directory.Exists(folderPath))
-        {
-            // Load the image file names from the folder
-            var imageFiles = Directory.GetFiles(folderPath, "*.jpg");
-
-            // Get the relative paths to the images
-            imagePaths = imageFiles.Select(file => file.Replace(_environment.WebRootPath, "").Replace("\\", "/")).ToList();
-        }
+        _bildInfos = await BildInfoData.GetAllBildInfosAsync();
     }
 
-    private async void ShowImageInfo(string imagePath)
+    private async void ShowImageInfo(BildInfoModel bildInfo)
     {
-        selectedImage = imagePath;
+        selectedImage = bildInfo.Dateiname;
         popupStyle = "display: block;";
-        infoText = await GetInfoTextForImageAsync(imagePath);
-    }
 
-
-    private async Task<string> GetInfoTextForImageAsync(string imagePath)
-    {
-        // Bestimme den Ordnerpfad, in dem sich die Bilder und die info_texts.txt Datei befinden
-        string folderPath = Path.Combine(_environment.WebRootPath, "generated_images");
-
-        // Bestimme den Pfad zur info_texts.txt Datei
-        string infoTextsFilePath = Path.Combine(folderPath, "info_texts.txt");
-
-        // Überprüfe, ob die Datei existiert
-        if (!File.Exists(infoTextsFilePath))
-            return $"Kein Infotext für {imagePath} gefunden.";
-
-        // Lies alle Zeilen der Datei
-        var lines = await File.ReadAllLinesAsync(infoTextsFilePath);
-        string adaptedImagePath = imagePath.Substring(1) + ":";
-
-        // Durchsuche jede Zeile nach dem gegebenen imagePath
-        foreach (var line in lines)
-        {
-            if (line.StartsWith(adaptedImagePath))  // Überprüft, ob die Zeile mit dem Dateinamen des Bildes beginnt
-            {
-                // Trenne den Dateinamen und den Infotext und gib den Infotext zurück
-                return line.Split(new[] { ':' }, 2).LastOrDefault()?.Trim();
-            }
-        }
-
-        return $"Kein Infotext für {imagePath} gefunden.";
+        WunschInfoModel wunschInfo = await WunschInfoData.GetWunschInfoAsync(bildInfo.WunschId);
+        infoText = wunschInfo.BildBeschreibung;
     }
 
     private void CloseImageInfo()
diff --git a/KIKunstKirstenKlöckner/Shared/MainLayout.razor b/KIKunstKirstenKlöckner/Shared/MainLayout.razor
index 52af9e6..74e506d 100644
--- a/KIKunstKirstenKlöckner/Shared/MainLayout.razor
+++ b/KIKunstKirstenKlöckner/Shared/MainLayout.razor
@@ -36,7 +36,7 @@
                                     <span class="nav-link">Über Kirsten Klöckner</span>
                                 </NavLink>
                                 <NavLink class="nav-item" href="gallery" Match="NavLinkMatch.All">
-                                    <span class="nav-link">Galerier</span>
+                                    <span class="nav-link">Galerie</span>
                                 </NavLink>
                             </ul>
                         </div>
diff --git a/KiKunstDatenbank/KiKunstDatenbank.sqlproj b/KiKunstDatenbank/KiKunstDatenbank.sqlproj
index 39b284d..cbef593 100644
--- a/KiKunstDatenbank/KiKunstDatenbank.sqlproj
+++ b/KiKunstDatenbank/KiKunstDatenbank.sqlproj
@@ -66,6 +66,8 @@
     <Build Include="dpo\Tables\WunschInfo.sql" />
     <Build Include="dpo\StoredProcedures\spWunschInfo_Insert.sql" />
     <Build Include="dpo\StoredProcedures\spBildInfo_UpdateFileName.sql" />
+    <Build Include="dpo\StoredProcedures\spBildInfo_GetAll.sql" />
+    <Build Include="dpo\StoredProcedures\spWunschInfo_Get.sql" />
   </ItemGroup>
   <ItemGroup>
     <RefactorLog Include="KiKunstDatenbank.refactorlog" />
diff --git a/KiKunstDatenbank/dpo/StoredProcedures/spBildInfo_GetAll.sql b/KiKunstDatenbank/dpo/StoredProcedures/spBildInfo_GetAll.sql
new file mode 100644
index 0000000..a397dc9
--- /dev/null
+++ b/KiKunstDatenbank/dpo/StoredProcedures/spBildInfo_GetAll.sql
@@ -0,0 +1,6 @@
+CREATE PROCEDURE [dbo].[spBildInfo_GetAll]
+AS
+BEGIN
+    SELECT Id, Datum, Dateiname, ImageModel, WunschId
+    FROM [dbo].[BildInfo];
+END
diff --git a/KiKunstDatenbank/dpo/StoredProcedures/spWunschInfo_Get.sql b/KiKunstDatenbank/dpo/StoredProcedures/spWunschInfo_Get.sql
new file mode 100644
index 0000000..05d4c06
--- /dev/null
+++ b/KiKunstDatenbank/dpo/StoredProcedures/spWunschInfo_Get.sql
@@ -0,0 +1,8 @@
+CREATE PROCEDURE [dbo].[spWunschInfo_Get]
+    @Id INT
+AS
+BEGIN
+    SELECT Id, Wunsch, BildPrompt, BildBeschreibung, Datum, GPTModel
+    FROM [dbo].[WunschInfo]
+    WHERE Id = @Id;
+END