import { promises as fs } from "node:fs";
import path from "node:path";
import _ from "lodash";
import * as vscodeOniguruma from "vscode-oniguruma";
import { readFile } from "./util";

export class VscodeTextmate {
	oniguruma: any;

	registry: any;

	vsctm: any;

	initCalled: any;

	constructor(vsctm: any, oniguruma: any) {
		// @ts-ignore
		// biome-ignore lint/correctness/noConstructorReturn: false positive
		return (async () => {
			this.vsctm = vsctm.default ?? vsctm;
			// @ts-ignore
			this.oniguruma = oniguruma || vscodeOniguruma?.default || vscodeOniguruma;
			await this.loadWasm();
			return this;
		})();
	}

	async loadWasm() {
		const wasm = await fs.readFile(
			// @ts-ignore
			// eslint-disable-next-line
			require.resolve("vscode-oniguruma/release/onig.wasm"),
		);
		await this.oniguruma?.loadWASM(wasm.buffer);

		if (!this.initCalled) {
			try {
				this.oniguruma.loadWASM(wasm.buffer);
			} catch (_error) {
				this.initCalled = true;
			}

			this.initCalled = true;
		}
	}

	createRegistry() {
		this.registry = new this.vsctm.Registry({
			loadGrammar: (scopeName: any) => {
				if (scopeName === "text.html.php.blade") {
					// https://github.com/onecentlin/
					// laravel-blade-snippets-vscode/
					// blob/master/syntaxes/blade.tmLanguage.json
					return readFile(
						path.resolve(__dirname, "../syntaxes/blade.tmLanguage.json"),
					).then((content: any) =>
						this.vsctm.parseRawGrammar(
							content.toString(),
							"./blade.tmLanguage.json",
						),
					);
				}
				return null;
			},
			onigLib: Promise.resolve({
				createOnigScanner: (sources: any) =>
					new this.oniguruma.OnigScanner(sources),
				createOnigString: (str: any) => new this.oniguruma.OnigString(str),
			}),
		});

		return this.registry;
	}

	tokenizeLines(splitedLines: any, grammar: any) {
		return _.map(splitedLines, (line: any) =>
			grammar.tokenizeLine(line, this.vsctm?.INITIAL),
		);
	}
}

export default {
	VscodeTextmate,
};