const fs = require('fs');
const path = require('path');
const { Document, Packer, Paragraph, TextRun, Table, TableRow, TableCell } = require('docx');

async function createDocxtemplaterTemplate() {
    const doc = new Document({
        sections: [{
            properties: {},
            children: [
                new Paragraph({
                    children: [new TextRun({ text: "ECHTE DYNAMISCHE TABELLEN", bold: true, size: 32 })],
                }),
                new Paragraph({ children: [new TextRun({ text: "" })] }),
                new Paragraph({ children: [new TextRun({ text: "Projekt: {projekt}" })] }),
                new Paragraph({ children: [new TextRun({ text: "Datum: {datum}" })] }),
                new Paragraph({ children: [new TextRun({ text: "Ersteller: {ersteller}" })] }),
                new Paragraph({ children: [new TextRun({ text: "" })] }),
                new Paragraph({ children: [new TextRun({ text: "MITARBEITER:", bold: true, size: 24 })] }),
                new Table({
                    rows: [
                        // Header Row
                        new TableRow({
                            children: [
                                new TableCell({ children: [new Paragraph({ children: [new TextRun({ text: "Nr.", bold: true })] })] }),
                                new TableCell({ children: [new Paragraph({ children: [new TextRun({ text: "Name", bold: true })] })] }),
                                new TableCell({ children: [new Paragraph({ children: [new TextRun({ text: "Position", bold: true })] })] }),
                                new TableCell({ children: [new Paragraph({ children: [new TextRun({ text: "E-Mail", bold: true })] })] }),
                            ],
                        }),
                        // ECHTE DYNAMISCHE Zeile mit docxtemplater Loop-Syntax
                        new TableRow({
                            children: [
                                new TableCell({ children: [new Paragraph("{#mitarbeiter}{nr}")] }),
                                new TableCell({ children: [new Paragraph("{name}")] }),
                                new TableCell({ children: [new Paragraph("{position}")] }),
                                new TableCell({ children: [new Paragraph("{email}{/mitarbeiter}")] }),
                            ],
                        }),
                    ],
                }),
                new Paragraph({ children: [new TextRun({ text: "" })] }),
                new Paragraph({ children: [new TextRun({ text: "Status: {status}" })] }),
            ],
        }],
    });

    const buffer = await Packer.toBuffer(doc);
    const templatePath = path.join(__dirname, 'templates', 'dynamic-template.docx');
    fs.writeFileSync(templatePath, buffer);
    
    console.log('✅ Docxtemplater-Template erstellt: dynamic-template.docx');
    console.log('📋 Loop-Syntax: {#mitarbeiter}{feldname}{/mitarbeiter}');
}

createDocxtemplaterTemplate().catch(console.error);