import * as fs from 'fs';
import * as path from 'path';
const appConfig = JSON.parse(fs.readFileSync('./app.config.json', 'utf8'));
const DEPLOY_TARGET = "./dist/";

function findHtmlFilesRecursive(source: string): string[] {
  let files: string[] = [];
  const dir = fs.readdirSync(source);
  dir.forEach(function (file: string) {
    const sourceFile = path.join(source, file);
    const stat = fs.lstatSync(sourceFile);
    if (stat.isDirectory()) {
      files = files.concat(findHtmlFilesRecursive(sourceFile));
    } else {
      if (path.extname(sourceFile) == '.html') {
        files.push(sourceFile);
      }
    }
  });
  return files;
}

function replaceKeywordsInHtmlFile(file: string) {
  let content = fs.readFileSync(file, 'utf8');
  const pairs: { key: string, value: string }[] = appConfig.htmlTemplatePairs;
  pairs.forEach(function (pair: { key: string, value: string }) {
    //@ts-ignore
    content = content.replaceAll(pair.key, pair.value);
  });
  file = file.replace("public\\", DEPLOY_TARGET);
  fs.writeFileSync(file, content);
}

function buildHtmlFiles(source: string) {
  const files = findHtmlFilesRecursive(source);
  files.forEach(function (file: string) {
    replaceKeywordsInHtmlFile(file);
  });
}

buildHtmlFiles(DEPLOY_TARGET);

console.log("Parsed Files: ", findHtmlFilesRecursive(DEPLOY_TARGET));