index.js

#!/usr/bin/env node

const { getLogger } = require(__dirname + '/utils/utils.logger.js')
const { getChapters, renderChapter, getNCXFile, getRootFile, getTitle } = require('./utils/utils')
const { getDBForMetaContent } = require('./utils/utils.meta.js')
const runCliCommands = require('./ui/runCliCommands')
const argumentParser = require('./utils/argumentParser')
const showHelp = require('./utils/utils.showhelp')
const UI = require('./ui/ui')

const logger = getLogger('debug')
const { filePath, flags } = argumentParser(process.argv)

if (flags.help) {
  showHelp()
  process.exit(0)
}

if (flags.version || flags.Version) {
  console.log(`version: ${require(__dirname + '/package.json').version}`)
  process.exit(0)
}

if (!filePath) {
  console.warn('please specify a file path')
  return process.exit(1)
}

let contentFolder = null

getRootFile(filePath)
    .then((mainFileInfo) => {
      contentFolder = mainFileInfo.folder
      return getNCXFile(filePath, mainFileInfo.filePath)
    })
    .then(chpFile => {
      return new Promise(async (resolve, reject) => {
        try {
          // location is specified relative to the location of the main file (opf) was found
          const chapterList = await getChapters(filePath, `${contentFolder}/${chpFile}`)
          const title = await getTitle(filePath, `${contentFolder}/${chpFile}`)
          resolve({ chapterList, title})
        } catch (ex) {
          reject(ex)
        }
      })

    }).then(({chapterList, title}) => {
  logger.debug(`chapters: ${JSON.stringify(chapterList, null, 4)}`)

  // check the flags and execute any cli commands that may be specified by the flags
  runCliCommands(flags, filePath, chapterList, contentFolder, async (err, handled) => {
    if (err) {
      // we specified a command but could not fulfill it
      console.error(err)
      process.exit(1)
    } else if (handled) {
      // we specified and handled a cli command nothing else to do
      process.exit(0)
    } else {
      // we are not performing a cli command, launch the ncurses interface
      let db = null
      try {
        db = await getDBForMetaContent()
      } catch(ex) {
        console.error(ex)
        return process.exit(1)
      }

      const ui = new UI(title, filePath, chapterList, contentFolder, db)
      ui.on('close', () => process.exit(0))
    }
  })
}).catch(err => {
  console.error(err)
  process.exit(1)
})