<https://github.com/Disfactory/docx-exporter-js/blob/main/docxGenerator.js | docxGenerator.js>
```
import * as docx from 'docx';
import { fetchImageAsBase64 } from './imageHelpers'; // Placeholder for image fetching helper function
const sealImageUrl =
'<https://raw.githubusercontent.com/Disfactory/Disfactory/master/backend/doc_resources/seal.png>';
const lowerCaseNumber = '〇一二三四五六七八九';
const toLowerCaseNumber = (number) => lowerCaseNumber[number];
const STAFF_EMAIL = {
賴沛蓮: '<mailto:peii@cet-taiwan.org|peii@cet-taiwan.org>',
};
function getSenderParagraphs(sender = '賴沛蓮') {
const email = STAFF_EMAIL[sender] || '<mailto:cet@cet-taiwan.org|cet@cet-taiwan.org>';
const context = [
'',
'地址：10049台北市北平東路28號9樓之2',
'電話：02-23920371',
'傳真：02-23920381',
`連絡人：${sender}`,
`電子信箱：${email}`,
'',
'',
];
return context.map(
(text) =>
new docx.Paragraph({
style: 'Normal',
spacing: {
line: 240,
lineRule: docx.LineRuleType.EXACT,
},
children: [
new docx.TextRun({
text,
size: 20,
}),
],
alignment: docx.AlignmentType.RIGHT,
}),
);
}
function getReceiverParagraphs(serealNumber = '00000000') {
const taipeiDateString = new Date().toLocaleDateString('en-US', {
year: 'numeric',
month: '2-digit',
day: '2-digit',
timeZone: 'Asia/Taipei',
});
const [month, day, year] = taipeiDateString.split('/');
const twYear = parseInt(year, 10) - 1911;
const context = [
'',
'受文者：如正、副本行文單位',
`發文日期：中華民國${twYear}年${month}月${day}日`,
`發文字號：地球公民違字第 ${serealNumber} 號`,
'速別：普通件',
'附件：舉證照片',
'',
];
return context.map(
(text) =>
new docx.Paragraph({
style: 'Normal',
spacing: {
after: 150,
line: 200,
},
children: [
new docx.TextRun({
text,
size: 28,
}),
],
alignment: docx.AlignmentType.LEFT,
}),
);
}
function getSubjectParagraphs(location = '') {
const context = [
`主旨：舉報 ${location} 地號土地疑有違法新增鐵皮廠房情事。`,
'',
'說明：',
];
return context.map(
(text) =>
new docx.Paragraph({
style: 'Normal',
spacing: {
line: 420,
after: 100,
lineRule: docx.LineRuleType.EXACT,
},
children: [
new docx.TextRun({
text,
size: 28,
}),
],
alignment: docx.AlignmentType.LEFT,
}),
);
}
function getContextParagraphs(location = '') {
const context = [
'一、 依工廠管理輔導法第28-1、28-12條辦理。',
// eslint-disable-next-line no-irregular-whitespace
`二、 ${location} 地號土地新發現新增建鐵皮廠房情形，經地球公民基金會志工拍攝存證，如附件一。因懷疑係屬非法建築行為，函請貴府調查處理。若有不法情事，並應依法裁處，請貴府將查處情形，惠知本會。`,
];
return context.map(
(text) =>
new docx.Paragraph({
style: 'Normal',
spacing: {
line: 420,
lineRule: docx.LineRuleType.EXACT,
},
children: [
new docx.TextRun({
text,
size: 28,
}),
],
alignment: docx.AlignmentType.LEFT,
}),
);
}
function getCCParagraphs(legislator = 'XXX', _townName = null) {
let townName;
if (_townName) {
townName = _townName
.replace('臺灣省', '')
.replace('台灣省', '')
.slice(0, 3);
} else {
townName = 'UNKNOWN';
}
const context = [
'',
`正本：${townName}政府`,
`副本：內政部、行政院農委會、經濟部工業局、經濟部中部辦公室、立法委員${legislator}國會辦公室`,
];
return context.map(
(text) =>
new docx.Paragraph({
style: 'Normal',
spacing: {
line: 360,
lineRule: docx.LineRuleType.EXACT,
},
children: [
new docx.TextRun({
text,
size: 24,
}),
],
alignment: docx.AlignmentType.LEFT,
}),
);
}
async function createAttachmentParagraphs(imageUrls) {
/** @type {docx.Paragraph[]} */
const imageParagraphs = await Promise.all(
imageUrls.map((url) => {
return createImageParagraph(url, docx.convertInchesToTwip(0.45));
}),
);
const descriptionParagraphs = new Array(imageUrls.length)
.fill(0)
.map((_, index) => {
return new docx.Paragraph({
style: 'Normal',
spacing: {
line: 120,
},
children: [
new docx.TextRun({
text: `附件 ${toLowerCaseNumber(index + 1)}`,
size: 24,
}),
],
alignment: docx.AlignmentType.LEFT,
});
});
// one description paragraph for each image
const mappedParagraphs = imageParagraphs
.map((paragraph, index) => {
return [descriptionParagraphs[index], paragraph];
})
.flat();
return mappedParagraphs;
}
async function createImageParagraph(imageURL, _width, _height) {
return fetchImageAsBase64(imageURL)
.then((data) => {
const {
base64,
dimension: { width, height },
} = data;
const ratio = width / height;
// calculate image width and height base on given width and height
// if one of them is not given, use the other one to calculate
// if both are not given, use default width and height
let transformWidth, transformHeight;
if (!_width && !_height) {
transformWidth = width;
transformHeight = height;
} else if (!_width) {
transformHeight = _height;
transformWidth = transformHeight * ratio;
} else if (!_height) {
transformWidth = _width;
transformHeight = transformWidth / ratio;
}
console.log(transformWidth, transformHeight, width, height);
const paragraph = new docx.Paragraph({
style: 'Normal',
children: [
new docx.ImageRun({
data: base64,
transformation: {
width: transformWidth,
height: transformHeight,
},
}),
],
});
return paragraph;
})
.catch((err) => {
console.log(err);
});
}
async function generateDocumentParagraphs({
sender = '賴沛蓮',
serialNumber = '00000000',
location = '台北市中山區中山北路一段',
legislator = 'XXX',
townName = '台北市中山區',
imageUrls = [],
}) {
return [
// original
new docx.Paragraph({
style: 'Normal',
children: [
new docx.TextRun({
text: '正本',
}),
],
spacing: {
after: 300,
},
}),
// title
new docx.Paragraph({
style: 'Normal',
children: [
new docx.TextRun({
text: '地球公民基金會 函',
size: 40,
}),
],
spacing: {
after: 300,
},
alignment: docx.AlignmentType.CENTER,
}),
// sender
...getSenderParagraphs(sender),
// receiver
...getReceiverParagraphs(serialNumber),
// subject
...getSubjectParagraphs(location),
// context
...getContextParagraphs(location),
// cc
...getCCParagraphs(legislator, townName),
// seal
await createImageParagraph(sealImageUrl, docx.convertInchesToTwip(0.45)),
// attachments
...(await createAttachmentParagraphs(imageUrls)),
];
}
// Main document generation function
/**
* @param {{
* sender: string,
* serialNumber: string,
* location: string,
* legislator: string,
* townName: string,
* imageUrls: string[],
* }[]} docsData
*/
export async function generate(docsData) {
const groupsOfParagraphs = await Promise.all(
docsData.map(generateDocumentParagraphs),
);
// for each group of paragraphs, add a page break paragraph after it
const breakParagraphs = groupsOfParagraphs.map(() => {
return new docx.Paragraph({
style: 'Normal',
children: [
new docx.TextRun({
text: '',
}),
],
pageBreakBefore: true,
});
});
const paragraphsWithBreaks = groupsOfParagraphs
.map((paragraphs, index) => {
return [...paragraphs, breakParagraphs[index]];
})
.flat();
// remove the end page brea…
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