const { exec,execSync  } = require('child_process');

let refreshDelay = 60;

if(process.env.REFRESH_DELAY) refreshDelay = process.env.REFRESH_DELAY;

if(!process.env.REPOSITORY_URL) throw "Env var GIT_REPOSITORY must be a valid repository url";

let cloneUrl = process.env.REPOSITORY_URL;
if(process.env.REPOSITORY_TOKEN){
	cloneUrl = cloneUrl.replace(/(.*:\/\/)(.*)/,'$1'+'myProject:'+process.env.REPOSITORY_TOKEN+'@$2');
}

console.log("starting program");
console.log("refresh delay is ("+refreshDelay+"s)");

console.log('Cloning doc repository: '+process.env.GIT_REPOSITORY);
let stdout = execSync('cd /rdoc && git clone '+cloneUrl+" docs");
console.log(stdout);

setInterval(function() {
    exec('cd /rdoc/docs && git reset --hard origin/master && git pull', (error, stdout, stderr) => {
  if (error) {
    console.error(`error: ${error}`);
    return;
  }
  if(stdout.indexOf('Already up to date')!==-1) return;
  console.log(`${stdout}`);
  console.error(`${stderr}`);
});
}, refreshDelay * 1000);

console.log("load docsify");

exec('docsify serve /rdoc/docs', (error, stdout, stderr) => {
  if (error) {
    console.error(`error: ${error}`);
    return;
  }
  console.log(` ${stdout}`);
  console.error(`${stderr}`);
});