Templates working

WGneu/Documents/Document.cshtml.cs

@@ -4,17 +4,29 @@ using System.Linq;
 using System.Text;
 using System.Threading.Tasks;
 using System.IO;
+using System.Windows;
 
 namespace WGneu.Documents {
-    public abstract class Document {
+    public abstract class Document : IDisposable {
+
+        private Utils.TemporaryFile? PdfFile = null;
 
         public Document(string title) {
             Title = title;
-            Header = "Winzergenossenschaft Matzen";
+            Header = "<h1>Winzergenossenschaft Matzen</h1>";
             Footer = "Winzergenossenschaft für Matzen und Umgebung reg. Gen.m.b.H.";
             Date = DateTime.Today;
         }
 
+        ~Document() {
+            Dispose();
+        }
+
+        public void Dispose() {
+            PdfFile?.Dispose();
+            PdfFile = null;
+        }
+
         public string Title { get; set; }
 
         public string Header { get; set; }
@@ -22,24 +34,41 @@ namespace WGneu.Documents {
         public string Footer { get; set; }
 
         public string FullDateString {
-            get {
-                return Date.ToString("dddd, d. MMMM yyyy");
-            }
+            get => Date.ToString("dddd, d. MMMM yyyy");
         }
 
         public DateTime Date { get; set; }
 
         private async Task<string> Render() {
-            if (this is BusinessLetter bl) {
-                return await Html.CompileRenderAsync("BusinessLetter", bl);
+            if (this is BusinessLetter) {
+                return await Html.CompileRenderAsync("BusinessLetter.cshtml", this);
             }
             throw new InvalidOperationException();
         }
 
-        public async Task<string> Save() {
-            // TODO tempfile
-            await File.WriteAllTextAsync("razor_test.html", await Render());
-            return "";
+        public async Task Generate() {
+            var pdf = new Utils.TemporaryFile(@"C:\Users\Lorenz\Desktop", ".pdf");
+            using (var tmpHtml = new Utils.TemporaryFile(@"C:\Users\Lorenz\Desktop", ".html")) {
+                await File.WriteAllTextAsync(tmpHtml.FilePath, await Render());
+                await Pdf.Convert(tmpHtml.FilePath, pdf.FilePath);
+            }
+            Pdf.UpdateMetadata(pdf.FilePath, Title, "Wizergenossenschaft für Matzen und Umgebung reg. Gen.m.b.H.");
+            PdfFile = pdf;
+        }
+
+        public void SaveTo(string pdfPath) {
+            if (PdfFile == null) throw new InvalidOperationException("Pdf file has not been generated yet");
+            File.Copy(PdfFile.FilePath, pdfPath);
+        }
+
+        public async Task Print() {
+            if (PdfFile == null) throw new InvalidOperationException("Pdf file has not been generated yet");
+            Pdf.Print(PdfFile.FilePath);
+        }
+
+        public void Show() {
+            if (PdfFile == null) throw new InvalidOperationException("Pdf file has not been generated yet");
+            Pdf.Show(PdfFile.NewReference(), Title);
         }
     }
 }