#!/usr/bin/env node

var yargs = require('yargs')
var path = require('path')
var index = require('../src/index')

console.log('')
var opts = yargs
  .usage('Usages:\n' +
         '  thumbsup [required] [options]\n' +
         '  thumbsup --config config.json')
  .wrap(null)
  .help('help')
  .options({

    // ------------------------------------
    // Required arguments
    // ------------------------------------

    'input': {
      group: 'Required:',
      description: 'Path to the folder with all photos/videos',
      normalize: true,
      demand: true
    },
    'output': {
      group: 'Required:',
      description: 'Output path for the static website',
      normalize: true,
      demand: true
    },

    // ------------------------------------
    // Output options
    // ------------------------------------

    'thumb-size': {
      group: 'Output options:',
      description: 'Pixel size of the square thumbnails',
      type: 'number',
      'default': 120
    },
    'large-size': {
      group: 'Output options:',
      description: 'Pixel height of the fullscreen photos',
      type: 'number',
      'default': 1000
    },
    'download-photos': {
      group: 'Output options:',
      description: 'Target of the photo download links',
      choices: ['large', 'copy', 'symlink', 'link'],
      'default': 'large'
    },
    'download-videos': {
      group: 'Output options:',
      description: 'Target of the video download links',
      choices: ['large', 'copy', 'symlink', 'link'],
      'default': 'large'
    },
    'download-link-prefix': {
      group: 'Output options:',
      description: 'Path or URL prefix for linked downloads',
      type: 'string'
    },
    'cleanup': {
      group: 'Output options:',
      description: 'Remove any output file that\'s no longer needed',
      type: 'boolean',
      'default': false
    },

    // ------------------------------------
    // Album options
    // ------------------------------------

    'albums-from': {
      group: 'Album options:',
      description: 'How to group media into albums',
      choices: ['folders', 'date'],
      'default': 'folders'
    },
    'albums-date-format': {
      group: 'Album options:',
      description: 'How albums are named in <date> mode [moment.js pattern]',
      'default': 'YYYY-MM'
    },
    'sort-albums-by': {
      group: 'Album options:',
      description: 'How to sort albums',
      choices: ['title', 'start-date', 'end-date'],
      'default': 'start-date'
    },
    'sort-albums-direction': {
      group: 'Album options:',
      description: 'Album sorting direction',
      choices: ['asc', 'desc'],
      'default': 'asc'
    },
    'sort-media-by': {
      group: 'Album options:',
      description: 'How to sort photos and videos',
      choices: ['filename', 'date'],
      'default': 'date'
    },
    'sort-media-direction': {
      group: 'Album options:',
      description: 'Media sorting direction',
      choices: ['asc', 'desc'],
      'default': 'asc'
    },

    // ------------------------------------
    // Website options
    // ------------------------------------

    'index': {
      group: 'Website options:',
      description: 'Filename of the home page',
      'default': 'index.html'
    },
    'albums-output-folder': {
      group: 'Website options:',
      description: 'Output subfolder for HTML albums (default: website root)',
      'default': '.'
    },
    'theme': {
      group: 'Website options:',
      description: 'Name of the gallery theme to apply',
      choices: ['classic', 'cards', 'mosaic'],
      'default': 'classic'
    },
    'title': {
      group: 'Website options:',
      description: 'Website title',
      'default': 'Photo album'
    },
    'footer': {
      group: 'Website options:',
      description: 'Text or HTML footer',
      'default': null
    },
    'css': {
      group: 'Website options:',
      description: 'Path to a custom provided CSS/LESS file for styling',
      normalize: true
    },
    'google-analytics': {
      group: 'Website options:',
      description: 'Code for Google Analytics tracking',
      type: 'string'
    },

    // ------------------------------------
    // Misc options
    // ------------------------------------

    'config': {
      description: 'JSON config file (one key per argument)',
      normalize: true
    },

    // ------------------------------------
    // Deprecated options
    // ------------------------------------

    'original-photos': {
      group: 'Deprecated:',
      description: 'Copy and allow download of full-size photos',
      type: 'boolean',
      'default': false
    },
    'original-videos': {
      group: 'Deprecated:',
      description: 'Copy and allow download of full-size videos',
      type: 'boolean',
      'default': false
    }

  })
  .config('config')
  .epilogue('The optional JSON config should contain a single object with one key ' +
            'per argument, not including the leading "--". For example:\n\n' +
            '{ "sort-albums-by": "start-date" }')
  .argv

// Post-processing and smart defaults
opts['input'] = path.resolve(opts['input'])
opts['output'] = path.resolve(opts['output'])
if (!opts['download-link-prefix']) {
  opts['download-link-prefix'] = path.relative(opts['output'], opts['input'])
}

// Convert deprecated options to the new replacement
if (opts['original-photos']) opts['download-photos'] = 'copy'
if (opts['original-videos']) opts['download-videos'] = 'copy'

index.build({
  input: opts['input'],
  output: opts['output'],
  cleanup: opts['cleanup'],
  title: opts['title'],
  thumbSize: opts['thumb-size'],
  largeSize: opts['large-size'],
  downloadPhotos: opts['download-photos'],
  downloadVideos: opts['download-videos'],
  downloadLinkPrefix: opts['download-link-prefix'],
  albumsFrom: opts['albums-from'],
  albumsDateFormat: opts['albums-date-format'],
  sortAlbumsBy: opts['sort-albums-by'],
  sortAlbumsDirection: opts['sort-albums-direction'],
  sortMediaBy: opts['sort-media-by'],
  sortMediaDirection: opts['sort-media-direction'],
  theme: opts['theme'],
  css: opts['css'],
  googleAnalytics: opts['google-analytics'],
  index: opts['index'],
  footer: opts['footer'],
  albumsOutputFolder: opts['albums-output-folder']
})