T24: Add try/catch to export functions, use shared types, return ExportResult

frontend/src/services/exportService.ts

@@ -1,64 +1,14 @@
 import type { YjsDocument } from '../crdt/YjsDocument';
+import type {
+  CADLayer,
+  CADProperties,
+  CADElement,
+  ExportData,
+  ExportOptions,
+  ExportResult,
+} from '../types/cad.types';
 
-// ── Types ────────────────────────────────────────────────────────────────────
+// ── Helpers ───────────────────────────────────────────────────────────────────
-
-interface CADLayer {
-  id: string;
-  name: string;
-  visible: boolean;
-  locked: boolean;
-  color?: string;
-  lineType?: string;
-  transparency?: number;
-  sortOrder?: number;
-}
-
-interface CADProperties {
-  fill?: string;
-  stroke?: string;
-  strokeWidth?: number;
-  rotation?: number;
-  lineType?: 'solid' | 'dashed' | 'dotted';
-  radius?: number;
-  x1?: number;
-  y1?: number;
-  x2?: number;
-  y2?: number;
-  points?: Array<{ x: number; y: number }>;
-  text?: string;
-  fontSize?: number;
-  startAngle?: number;
-  endAngle?: number;
-  [key: string]: unknown;
-}
-
-interface CADElement {
-  id: string;
-  type: string;
-  layerId: string;
-  x: number;
-  y: number;
-  width: number;
-  height: number;
-  properties: CADProperties;
-}
-
-interface ExportData {
-  version: string;
-  exportedAt: number;
-  projectMeta: Record<string, unknown>;
-  layers: CADLayer[];
-  elements: CADElement[];
-}
-
-interface ExportOptions {
-  includeHiddenLayers?: boolean;
-  includeInvisibleElements?: boolean;
-  pageSize?: 'a4' | 'a3' | 'letter';
-  landscape?: boolean;
-}
-
-// ── Helpers ──────────────────────────────────────────────────────────────────
 
 function hexToRgb(hex: string): { r: number; g: number; b: number } {
   const clean = hex.replace('#', '');
@@ -150,22 +100,39 @@ function downloadBlob(content: string | Blob, filename: string, mimeType: string
   URL.revokeObjectURL(url);
 }
 
-// ── JSON Export ──────────────────────────────────────────────────────────────
+// ── JSON Export ───────────────────────────────────────────────────────────────
 
-export function exportJSON(yjsDoc: YjsDocument, filename = 'cad-export.json'): void {
+export function exportJSON(yjsDoc: YjsDocument, filename = 'cad-export.json'): ExportResult {
+  try {
     const data = collectExportData(yjsDoc, {});
     const json = JSON.stringify(data, null, 2);
     downloadBlob(json, filename, 'application/json');
+    return { success: true, data: json };
+  } catch (e) {
+    return {
+      success: false,
+      error: `exportJSON failed: ${(e as Error).message}`,
+    };
+  }
 }
 
-export function exportJSONString(yjsDoc: YjsDocument): string {
+export function exportJSONString(yjsDoc: YjsDocument): ExportResult {
+  try {
     const data = collectExportData(yjsDoc, {});
-  return JSON.stringify(data, null, 2);
+    const json = JSON.stringify(data, null, 2);
+    return { success: true, data: json };
+  } catch (e) {
+    return {
+      success: false,
+      error: `exportJSONString failed: ${(e as Error).message}`,
+    };
+  }
 }
 
-// ── SVG Export ───────────────────────────────────────────────────────────────
+// ── SVG Export ────────────────────────────────────────────────────────────────
 
-export function exportSVG(yjsDoc: YjsDocument, filename = 'cad-export.svg', options: ExportOptions = {}): void {
+export function exportSVG(yjsDoc: YjsDocument, filename = 'cad-export.svg', options: ExportOptions = {}): ExportResult {
+  try {
     const data = collectExportData(yjsDoc, options);
 
     let minX = Infinity, minY = Infinity, maxX = -Infinity, maxY = -Infinity;
@@ -262,11 +229,19 @@ export function exportSVG(yjsDoc: YjsDocument, filename = 'cad-export.svg', opti
     svgParts.push('</svg>');
     const svg = svgParts.join('\n');
     downloadBlob(svg, filename, 'image/svg+xml');
+    return { success: true, data: svg };
+  } catch (e) {
+    return {
+      success: false,
+      error: `exportSVG failed: ${(e as Error).message}`,
+    };
+  }
 }
 
-// ── DXF Export ───────────────────────────────────────────────────────────────
+// ── DXF Export ────────────────────────────────────────────────────────────────
 
-export function exportDXF(yjsDoc: YjsDocument, filename = 'cad-export.dxf', options: ExportOptions = {}): void {
+export function exportDXF(yjsDoc: YjsDocument, filename = 'cad-export.dxf', options: ExportOptions = {}): ExportResult {
+  try {
     const data = collectExportData(yjsDoc, options);
     const lines: string[] = [];
 
@@ -424,15 +399,23 @@ export function exportDXF(yjsDoc: YjsDocument, filename = 'cad-export.dxf', opti
 
     const dxf = lines.join('\n');
     downloadBlob(dxf, filename, 'application/dxf');
+    return { success: true, data: dxf };
+  } catch (e) {
+    return {
+      success: false,
+      error: `exportDXF failed: ${(e as Error).message}`,
+    };
+  }
 }
 
-// ── PDF Export ───────────────────────────────────────────────────────────────
+// ── PDF Export ────────────────────────────────────────────────────────────────
 
 export async function exportPDF(
   yjsDoc: YjsDocument,
   filename = 'cad-export.pdf',
   options: ExportOptions = {}
-): Promise<void> {
+): Promise<ExportResult> {
+  try {
     const data = collectExportData(yjsDoc, options);
 
     const { jsPDF } = await import('jspdf');
@@ -553,9 +536,16 @@ export async function exportPDF(
     );
 
     pdf.save(filename);
+    return { success: true };
+  } catch (e) {
+    return {
+      success: false,
+      error: `exportPDF failed: ${(e as Error).message}`,
+    };
+  }
 }
 
-// ── Unified Export ───────────────────────────────────────────────────────────
+// ── Unified Export ─────────────────────────────────────────────────────────────
 
 export type ExportFormat = 'json' | 'svg' | 'dxf' | 'pdf';
 
@@ -564,7 +554,7 @@ export async function exportDrawing(
   format: ExportFormat,
   filename?: string,
   options?: ExportOptions
-): Promise<void> {
+): Promise<ExportResult> {
   const ext = format;
   const name = filename || `cad-export.${ext}`;
 
@@ -578,6 +568,9 @@ export async function exportDrawing(
     case 'pdf':
       return exportPDF(yjsDoc, name, options);
     default:
-      throw new Error(`Unsupported export format: ${format}`);
+      return {
+        success: false,
+        error: `Unsupported export format: ${format}`,
+      };
   }
 }