const core = require('@actions/core');
const { writeFileSync, readFileSync } = require('fs');
try {
  const file = core.getInput('file');
  core.info(`file:${file}`)
  if(!file){
    throw {
      message:"file should not be empty"
    }
  }
  let content = readFileSync(file, { encoding: "utf-8" })
  const envs = process.env
  const show = core.getBooleanInput("show")
  for (const key in envs) {
    if(show){
      core.info(`${key}=${envs[key]}`);
    }
    if (key.startsWith("APP_")) {
      content = content.replaceAll(new RegExp(`\\$\\{\\s*${key}\\s*\\}`,"g"), envs[key]);
    }
  }
  writeFileSync(file, content)
  core.info(`replace envs in ${file}`);
  if(show){
    core.info(`=============\n${content}\n=============`)
  }
} catch (error) {
  core.setFailed(error.message);
}