Add job posting assistant (#150)

app/MindWork AI Studio/Components/ConfigurationText.razor.cs

@@ -1,5 +1,7 @@
 using Microsoft.AspNetCore.Components;
 
+using Timer = System.Timers.Timer;
+
 namespace AIStudio.Components;
 
 public partial class ConfigurationText : ConfigurationBase
@@ -11,7 +13,7 @@ public partial class ConfigurationText : ConfigurationBase
     public Func<string> Text { get; set; } = () => string.Empty;
     
     /// <summary>
-    /// An action which is called when the option is changed.
+    /// An action which is called when the text was changed.
     /// </summary>
     [Parameter]
     public Action<string> TextUpdate { get; set; } = _ => { };
@@ -27,6 +29,55 @@ public partial class ConfigurationText : ConfigurationBase
     /// </summary>
     [Parameter]
     public Color IconColor { get; set; } = Color.Default;
+
+    /// <summary>
+    /// How many lines should the textfield have?
+    /// </summary>
+    [Parameter]
+    public int NumLines { get; set; } = 1;
+
+    /// <summary>
+    /// What is the maximum number of lines?
+    /// </summary>
+    [Parameter]
+    public int MaxLines { get; set; } = 12;
+    
+    private string internalText = string.Empty;
+    private Timer timer = new(TimeSpan.FromMilliseconds(500))
+    {
+        AutoReset = false
+    };
+
+    #region Overrides of ConfigurationBase
+
+    protected override async Task OnInitializedAsync()
+    {
+        this.timer.Elapsed += async (_, _) => await this.InvokeAsync(async () => await this.OptionChanged(this.internalText));
+        await base.OnInitializedAsync();
+    }
+
+    #region Overrides of ComponentBase
+
+    protected override async Task OnParametersSetAsync()
+    {
+        this.internalText = this.Text();
+        await base.OnParametersSetAsync();
+    }
+
+    #endregion
+
+    #endregion
+
+    private bool AutoGrow => this.NumLines > 1;
+    
+    private int GetMaxLines => this.AutoGrow ? this.MaxLines : 1;
+
+    private void InternalUpdate(string text)
+    {
+        this.timer.Stop();
+        this.internalText = text;
+        this.timer.Start();
+    }
     
     private async Task OptionChanged(string updatedText)
     {