import { generateStimulusControllers } from "../generate-stimulus.js";
import { promises as fs } from "fs";
import { build } from "esbuild";
import { Builder } from "./builder.js";
import { relative } from "node:path";

export class FrontendTSBuilder extends Builder {
	constructor(
		public project_dir: string,
		public style_dirs: string[],
		public controller_dirs: string[]
	) {
		super(project_dir, style_dirs);
	}

	getName(): string {
		return "frontend-ts";
	}

	ownsFile(file_path: string) {
		return (
			file_path.startsWith("src/front") ||
			file_path.endsWith(".stimulus.ts")
		);
	}

	async dispose(): Promise<void> {}

	async _build(): Promise<void> {
		await generateStimulusControllers(this.controller_dirs);
		const { metafile } = await build({
			entryPoints: ["./src/front/index.ts"],
			sourcemap: true,
			outfile: "./public/dist/bundle.js",
			logLevel: "info",
			bundle: true,
			minify: true,
			metafile: true,
			treeShaking: true,
		});
		await fs.writeFile(
			relative(this.project_dir, "dist") + "/" + "front" + ".meta.json",
			JSON.stringify(metafile)
		);
	}
}