const tc = require('@actions/tool-cache');
const core = require('@actions/core');
const path = require('path');
const os = require('os');

function getInput(name, dflt) {
  const val = process.env[`INPUT_${name.replace(/ /g, '_').toUpperCase()}`];
  if (!val) {
    return dflt;
  }
  return val;
}

function addLocalPath(inputPath) {
  process.env['PATH'] = `${inputPath}${path.delimiter}${process.env['PATH']}`
}

async function run() {
  try {
    const base_url = core.getInput('base_url');
    const os_name = getInput('os_name', process.env['OS_NAME']);
    const target = core.getInput('target_platform');
    const project = getInput('project', process.env['GITHUB_REPOSITORY'].split('/')[1]);
    const branch = getInput('branch', process.env['GITHUB_HEAD_REF']||process.env['GITHUB_REF_NAME']);
    const extract_dir = getInput('extract_dir', process.env['HOME']||process.env['GITHUB_WORKSPACE']);

    let archivePath;
    try {
      const archive_url = `${base_url}/dev_preview/${branch}/deps2_${os_name}_${target}_${project}.tar.xz`;
      process.stdout.write("Downloading " + archive_url + "\n");
    	archivePath = await tc.downloadTool(archive_url);
    } catch (error) {
      const archive_url = `${base_url}/deps2_${os_name}_${target}_${project}.tar.xz`;
      process.stdout.write("Downloading " + archive_url + "\n");
      archivePath = await tc.downloadTool(archive_url);
    }

    process.stdout.write("Extracting " + archivePath + " to " + extract_dir);
    const archive_dir = await tc.extractTar(archivePath, extract_dir, 'xa');
    process.stdout.write("Extracted to " + archive_dir);
  } catch (error) {
    core.setFailed(error.message);
  }
}

if (os.platform() === 'win32') {
  addLocalPath('C:\\Program Files\\Git\\usr\\bin');
}
core.setCommandEcho(true);

run()