import less from "less";
import LessAliasesPlugin from "./plugin";

function get_argv(key: string) {
    let list = process.argv;
    let index = list.findIndex((p) => {
        return p == "--" + key
    })
    if (index > -1) {
        return process.argv[index + 1]
    }
}

async function main() {
    let content = get_argv("content");
    let option_value = get_argv("option");
    let options = undefined;
    if (option_value) {
        options = JSON.parse(option_value);
    }
    if (content) {
        content = JSON.parse(content)?.content;
    }
    if (content && options?.filename) {
        return handle(content, options)
    }
}

function handle(content: string, options: any) {
    if (!options.filename) {
        console.log("options.filename must not be empty");
        process.exit(1);
    }

    let callback_error = (err: string) => {
        console.log("resolve", options.filename, "-> has error \n", err);
        process.exit(1);
    }

    less.render(content, {
      paths: [
        ...(options?.paths || ['node_modules']),
        ...(options?.root ? [options.root] : []),
      ],
      plugins: [new LessAliasesPlugin(options.filename, callback_error)]
    }).then(res => {
      console.log(res.css);
      process.exit(0);
    }).catch(ex => {
      console.log(ex);
      process.exit(1);
    })
}

main();

// function test() {
//   type fs_type = typeof import("fs");
//   const fs: fs_type = require('fs');
//   const filepath ="/Users/zhushijie/Desktop/github/rspack/examples/arco-pro/src/style/global.less";
//   let content = fs.readFileSync(filepath).toString("utf8");
//   let options = {
//     filename: filepath,
//     paths: ['/Users/zhushijie/Desktop/github/rspack/examples/arco-pro/src/style/', 'node_modules']
//   };
//   handle(content, options);
// }
// test();