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import { PDFDocument, StandardFonts } from "pdf-lib";
import { observeDOM } from "@/shared/observe-dom";
const sanghaFacilitationCentreBannerUrl = "$l{ /assets/sangha-facilitation-centre-banner.jpg }l$";
/**
* On the Mutation Application form, removes the form action (to prevent
* the default server-side submit) and attaches a custom click handler
* that fetches the declaration PDF, overlays a banner image and date
* stamp on the last page, then triggers a download.
*/
document.addEventListener("DOMContentLoaded", () => {
observeDOM(() => {
const formElement = $("#form_MutationApplication > div > div:nth-child(14) > div.col-sm-2.btreset > form");
const submitButtonElement = $("#btnDeclareForm");
if (formElement.length > 0 && submitButtonElement.length > 0) {
formElement.removeAttr("action");
submitButtonElement.click(e => {
e.preventDefault();
(async () => {
const pdfDoc = await PDFDocument.load(await fetch("/BanglarBhumi/MutationDeclarationForm.action", {
method: "post",
credentials: "same-origin",
headers: {
"Content-Type": "application/x-www-form-urlencoded"
},
body: "hdnAppNo="
}).then(res => res.arrayBuffer()));
const pages = pdfDoc.getPages();
const lastPage = pages[pages.length - 1];
const { width, height } = lastPage.getSize();
const bannerImage = await pdfDoc.embedJpg(await fetch(sanghaFacilitationCentreBannerUrl).then(res => res.arrayBuffer()));
const bannerImageHeight = width * (bannerImage.height / bannerImage.width);
lastPage.drawImage(bannerImage, {
x: 0,
y: 0,
width: width,
height: bannerImageHeight
});
lastPage.drawText(pdfDoc.getCreationDate()!.toLocaleString(), {
x: 10,
y: bannerImageHeight,
size: 12,
font: await pdfDoc.embedFont(StandardFonts.TimesRoman)
});
const link = document.createElement("a");
link.href = window.URL.createObjectURL(new Blob([new Uint8Array(await pdfDoc.save())], {type: "application/pdf"}));
link.download = "Declaration.pdf";
link.click();
})();
});
return true;
} else {
return false;
}
});
});
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