u

src/routes/lieferung/neu.jsx

@@ -214,6 +214,7 @@ class LieferungNeuPage extends PureComponent {
       this.unsubscribe = this.automat.subscribe(this);
       this.setState({ ...this.automat.state });
       this._initialLines = null;
+      this._initialDoc = null;
       if (this.props.docId != null) {
         void this.loadEdit();
       } else {
@@ -296,11 +297,21 @@ class LieferungNeuPage extends PureComponent {
       if (doc.externalNumber != null) this.automat.actions.setExternalNumber(String(doc.externalNumber));
       this.automat.actions.setLineitems(lines);
       this._initialLines = lines;
+      this._initialDoc = {
+        date: dateInputValue(doc.date),
+        partyId: doc[cfg.partyField] ?? null,
+        externalNumber: doc.externalNumber != null ? String(doc.externalNumber) : '',
+        lines,
+        attachments: [],
+      };
 
       // Restore attachments with thumbnails
       const apiFiles = doc.files ?? [];
       const attachments = await restoreAttachmentsFromApi(apiFiles, this.state.attachments);
       this.automat.actions.setAttachments(attachments);
+      if (this._initialDoc) {
+        this._initialDoc.attachments = attachments;
+      }
 
       let ledgerSummary = null;
       try {
@@ -1186,6 +1197,14 @@ class LieferungNeuPage extends PureComponent {
         const attachments = await restoreAttachmentsFromApi(apiFiles, this.state.attachments);
         this.automat.actions.setAttachments(attachments);
 
+        this._initialDoc = {
+          date: dateInputValue(doc.date),
+          partyId: doc[cfg.partyField] ?? null,
+          externalNumber: doc.externalNumber != null ? String(doc.externalNumber) : '',
+          lines,
+          attachments,
+        };
+
         enqueueSnackbar(cfg.savedMsg, { variant: 'success' });
         this.setState({ saving: false });
       }
@@ -1259,6 +1278,27 @@ class LieferungNeuPage extends PureComponent {
       }
     }
 
+    const isEdit = this.props.docId != null;
+    let isDirty = false;
+    if (isEdit && this._initialDoc) {
+      const dateChanged = String(date ?? '').trim() !== String(this._initialDoc.date ?? '').trim();
+      const partyChanged = (partyId ?? null) !== (this._initialDoc.partyId ?? null);
+      const extChanged = String(externalNumber ?? '').trim() !== String(this._initialDoc.externalNumber ?? '').trim();
+      const linesChanged = !areLinesEqual(lines, this._initialDoc.lines);
+      const currentAtts = attachments || [];
+      const baseAtts = this._initialDoc.attachments || [];
+      let attsChanged = currentAtts.length !== baseAtts.length;
+      if (!attsChanged) {
+        for (const a of currentAtts) {
+          if (!a.isPersisted || a.isDirty) {
+            attsChanged = true;
+            break;
+          }
+        }
+      }
+      isDirty = dateChanged || partyChanged || extChanged || linesChanged || attsChanged;
+    }
+
     return (
       <>
         <PanelTileGrid>
@@ -1279,6 +1319,7 @@ class LieferungNeuPage extends PureComponent {
             onPdfCreate={this.handleCreatePdf}
             attachments={attachments}
             lines={lines}
+            isDirty={isDirty}
             onPdfUpload={this.handlePdfUpload}
             onPdfRescan={this.handlePdfRescan}
             onPdfDelete={this.handlePdfDelete}