rewrite-asset-imports.ts
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rewrite-asset-imports.ts
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	import { promises as fs } from "fs";
	import { extname, resolve } from "node:path";
	import { embeddable_file_extensions } from "../embeddable-file-extensions.js";
	import { removeNamedImports } from "../../remove-named-imports.js";
	import { PluginBuild } from "esbuild";

	export const rewrite_asset_imports_plugin = (project_dir: string) => ({
	name: "sealgen-rewrite-asset-imports",
	setup(build: PluginBuild) {
	build.onLoad({ filter: /\.tsx?$/ }, async (args) => {
	let contents = await fs.readFile(args.path, "utf8");
	for (const ext of embeddable_file_extensions) {
	const regex_assets = new RegExp(
	`^import (\\w+\|{[^}]+}) from "([^"]+.${ext})";`,
	"gm"
	);
	contents = contents.replaceAll(regex_assets, (line) => {
	line = line.replace(`.${ext}"`, '.js"');
	return line;
	});
	}
	const regex_import = new RegExp(
	`^import ([^ ]+, )?(\\w+\|{[^}]+}) from "([^"]+)";`,
	"gm"
	);
	contents = contents.replaceAll(
	regex_import,
	(line, _: string, original_path: string) => {
	const replaced = line.replace(
	`"src/`,
	`"` + resolve(project_dir, "./dist") + "/"
	);
	return replaced;
	}
	);

	contents = removeNamedImports(contents) as string;
	return {
	contents,
	loader: extname(args.path) === ".tsx" ? "tsx" : "ts",
	};
	});
	},
	});