/**
 * PKPasses generation through PKPass.pack static method
 * example.
 * Here it is showed manual model reading and
 * creating through another PKPass because in the other
 * examples, creation through templates is already shown
 */

import app from "./webserver";
import path from "path";
import { promises as fs } from "fs";
import { PKPass } from "passkit-generator";

const iconFromModel = await fs.readFile(
	path.resolve(__dirname, "models/exampleBooking.pass/icon.png"),
);

// *************************** //
// *** EXAMPLE FROM NOW ON *** //
// *************************** //

async function generatePass(props: Object) {
	const pass = new PKPass(
		{},
		{
			wwdr: path.resolve(__dirname, "../../certificates/WWDR.pem"),
			signerCert: path.resolve(
				__dirname,
				"../../certificates/signerCert.pem",
			),
			signerKey: path.resolve(
				__dirname,
				"../../certificates/signerKey.pem",
			),
			signerKeyPassphrase: "123456",
		},
		props,
	);

	pass.type = "boardingPass";
	pass.transitType = "PKTransitTypeAir";

	pass.headerFields.push(
		{
			key: "header-field-test-1",
			value: "Unknown",
		},
		{
			key: "header-field-test-2",
			value: "unknown",
		},
	);

	pass.primaryFields.push(
		{
			key: "primaryField-1",
			value: "NAP",
		},
		{
			key: "primaryField-2",
			value: "VCE",
		},
	);

	/**
	 * Required by Apple. If one is not available, a
	 * pass might be openable on a Mac but not on a
	 * specific iPhone model
	 */

	pass.addBuffer("icon.png", iconFromModel);
	pass.addBuffer("icon@2x.png", iconFromModel);
	pass.addBuffer("icon@3x.png", iconFromModel);

	return pass;
}

app.all(async function manageRequest(request, response) {
	const passName =
		request.params.modelName +
		"_" +
		new Date().toISOString().split("T")[0].replace(/-/gi, "");

	try {
		const passes = await Promise.all([
			generatePass(request.body || request.params || request.query),
			generatePass(request.body || request.params || request.query),
			generatePass(request.body || request.params || request.query),
			generatePass(request.body || request.params || request.query),
		]);

		const pkpasses = PKPass.pack(...passes);

		response.set({
			"Content-type": pkpasses.mimeType,
			"Content-disposition": `attachment; filename=${passName}.pkpass`,
		});

		const stream = pkpasses.getAsStream();

		stream.pipe(response);
	} catch (err) {
		console.log(err);

		response.set({
			"Content-type": "text/html",
		});

		response.send(err.message);
	}
});