feat: implement project export to Excel with API endpoint and UI button

export-projects-to-excel.mjs

@@ -0,0 +1,58 @@
+import * as XLSX from 'xlsx';
+import { getAllProjects } from './src/lib/queries/projects.js';
+
+function exportProjectsToExcel() {
+  try {
+    // Get all projects
+    const projects = getAllProjects();
+
+    // Group projects by status
+    const groupedProjects = projects.reduce((acc, project) => {
+      const status = project.project_status || 'unknown';
+      if (!acc[status]) {
+        acc[status] = [];
+      }
+      acc[status].push({
+        'Nazwa projektu': project.project_name,
+        'Adres': project.address || '',
+        'Działka': project.plot || '',
+        'WP': project.wp || '',
+        'Data zakończenia': project.finish_date || ''
+      });
+      return acc;
+    }, {});
+
+    // Polish status translations for sheet names
+    const statusTranslations = {
+      'registered': 'Zarejestrowany',
+      'in_progress_design': 'W realizacji (projektowanie)',
+      'in_progress_construction': 'W realizacji (budowa)',
+      'fulfilled': 'Zakończony',
+      'cancelled': 'Wycofany',
+      'unknown': 'Nieznany'
+    };
+
+    // Create workbook
+    const workbook = XLSX.utils.book_new();
+
+    // Create a sheet for each status
+    Object.keys(groupedProjects).forEach(status => {
+      const sheetName = statusTranslations[status] || status;
+      const worksheet = XLSX.utils.json_to_sheet(groupedProjects[status]);
+      XLSX.utils.book_append_sheet(workbook, worksheet, sheetName);
+    });
+
+    // Write to file
+    const filename = `projects_export_${new Date().toISOString().split('T')[0]}.xlsx`;
+    XLSX.writeFile(workbook, filename);
+
+    console.log(`Excel file created: ${filename}`);
+    console.log(`Sheets created for statuses: ${Object.keys(groupedProjects).join(', ')}`);
+
+  } catch (error) {
+    console.error('Error exporting projects to Excel:', error);
+  }
+}
+
+// Run the export
+exportProjectsToExcel();