/*
  This is the extractor script that generates the snippets.json and snippetsArchive.json files.
  Run using `npm run extractor`.
*/
// Load modules
const fs = require('fs-extra');
const path = require('path');
const chalk = require('chalk');
const util = require('./util');
// Paths
const SNIPPETS_PATH = './snippets';
const SNIPPETS_ARCHIVE_PATH = './snippets_archive';
const OUTPUT_PATH = './snippet_data';
// Check if running on Travis - only build for cron jobs and custom builds
if (
  util.isTravisCI() &&
  process.env['TRAVIS_EVENT_TYPE'] !== 'cron' &&
  process.env['TRAVIS_EVENT_TYPE'] !== 'api'
) {
  console.log(`${chalk.green('NOBUILD')} snippet extraction terminated, not a cron or api build!`);
  process.exit(0);
}
// Read data
let snippets = {},
  archivedSnippets = {},
  tagDbData = {};
console.time('Extractor');
snippets = util.readSnippets(SNIPPETS_PATH);
archivedSnippets = util.readSnippets(SNIPPETS_ARCHIVE_PATH);
tagDbData = util.readTags();
// Extract snippet data
let snippetData = Object.keys(snippets).map(key => {
  return {
    id: key.slice(0, -3),
    type: 'snippet',
    attributes: {
      fileName: key,
      text: util.getTextualContent(snippets[key]).trim(),
      codeBlocks: util.getCodeBlocks(snippets[key]),
      tags: tagDbData[key.slice(0, -3)]
    },
    meta: {
      archived: false,
      hash: util.hashData(snippets[key])
    }
  };
});
// Extract archived snippet data
let snippetArchiveData = Object.keys(archivedSnippets).map(key => {
  return {
    id: key.slice(0, -3),
    type: 'snippet',
    attributes: {
      fileName: key,
      text: util.getTextualContent(archivedSnippets[key]).trim(),
      codeBlocks: util.getCodeBlocks(archivedSnippets[key]),
      tags: []
    },
    meta: {
      archived: true,
      hash: util.hashData(archivedSnippets[key])
    }
  };
});
const completeData = {
  data: [...snippetData, ...snippetArchiveData],
  meta: {
    specification: 'http://jsonapi.org/format/'
  }
};
let listingData = {
  data: 
    completeData.data.map(v => ({
      id: v.id,
      type: 'snippetListing',
      attributes: {
        tags: v.attributes.tags,
        archived: v.meta.archived
      },
      meta: {
        hash: v.meta.hash
      }
    }))
  ,
  meta: {
    specification: 'http://jsonapi.org/format/'
  }
};
// Write files
fs.writeFileSync(path.join(OUTPUT_PATH, 'snippets.json'), JSON.stringify(completeData, null, 2));
fs.writeFileSync(path.join(OUTPUT_PATH, 'snippetList.json'), JSON.stringify(listingData, null, 2));
// Display messages and time
console.log(`${chalk.green('SUCCESS!')} snippets.json and snippetsArchive.json files generated!`);
console.timeEnd('Extractor');