import { Plugin } from "..";
import * as fs from "fs";
import * as esbuild from "esbuild";

export default class TSCompiler extends Plugin {
  name = "ts-compiler";
  rewriteTriggers = ["ts", "tsx", "jsx"];
  renameTo = "js";
  longLasting = false;

  minify = false;
  constructor() {
    super();
    if(process.argv.includes("--prod")) {
      this.minify = true;
    }
  }
  async rewriteFile(file: string, filePath: string) {

    const result = await esbuild.build({
      stdin: {
        contents: file,
        resolveDir: filePath.split("/")?.slice(0,-1).join("/"),
        sourcefile: filePath.split("/").at(-1),
        loader: filePath.split("/").at(-1)?.split(".").at(-1) as "ts"|"tsx"|"jsx"
      },
      jsxFragment: "Fragment",
      jsxFactory: "Nano.h",
      jsxImportSource: "nano-jsx",
      jsx: "transform",
      write: false,
      bundle: true,
      outdir: 'out',
      minify: this.minify,
    });
    
    if(result.errors.length != 0) {
        console.log("TS compiler errored.")
        result.errors.forEach(element => {
            console.error(element);
        });
    } else {
      const output = result.outputFiles[0].contents;
      return (new TextDecoder()).decode(output);
    }
  }
}