#!/usr/bin/ruby
# coding: utf-8
LogLevel=1
raise ArgumentError, 'Source/destination files not specified' if ARGV.size != 2
srcfile = ARGV[0]
dstfile = ARGV[1]

data=File.open(srcfile).readlines.map {|l| l.chomp!}

data.map {|lin| lin.gsub!(/\[\]{#anchor-?\d*}/, '')}

def log(level,what)
  indicators = %w(! • # -)
  if level >= LogLevel
    print indicators[level]
  else
    print "\n%s %s\n" % ['*' * (level+1), what]
  end
end

# There are several titles that are spread in more than one line. Make
# them into translatable sentences.
log 0, 'Merging multiline sentences '
[ ['Made', '', 'with', '', 'Creative', '', 'Commons'],
  ['The New','', 'World of', '', 'Digital', '', 'Commons'],
  ['How', '', 'to Be', '', 'Made with', '', 'Creative', '', 'Commons'],
  ['Providing a custom service to consumers of your work *', '\[MARKET-BASED\]*'],
  ['Memberships and individual donations', '*\[RECIPROCITY-BASED\]*'],
  ['The', '', 'Creative', '', 'Commons', '', 'Licenses'],
  ['PLOS','', '(Public Library of Science)']
].each do |str|
  # This should be done more generic, more robust... But before
  # burning brain cells, verify if it's needed!
  log 1, str
  matches=[]
  data.each_with_index do |lin, idx|
    if lin == str[0]
      matches << idx
    end
  end
  if matches.size == 0
    raise RuntimeError, 'Anchor string («%s» for «%s») not found' %
                        [str[0], str.reject {|word| word==''}.join(' ')]
  elsif matches.size > 1
    raise RuntimeError, 'Anchor string (%s) appears multiple times: %s' %
                        [str[0], matches.map {|i| i.to_s}.join(', ')]
  end
  log 2, 'Matches %s: %d - %s' % [str.join(' '), matches.size, matches.join(',')]

  len = str.size
  at = data.index(str[0])
  joined = str.reject {|word| word==''}.join(' ')
  len.times do |offset|
    if str[offset] != data[at+offset]
      raise RuntimeError,
            'Warning: String does not match ("%s" of "%s", offset %d, book at %d)' %
            [str[offset], joined, offset, at+offset]
    end
  end

  data[at] = joined
  (str.size - 1).times { data.delete_at(at+1) }
end

# Mark up headings: Very artisanal and suboptimal, but should do the
# trick.
#
# For every heading, put here the full string and its heading level,
# as follows:
#
# 1 - Part
# 2 - Chapter
# 3 - Section
# 4 - Subsection
#
# Try to keep this ordered as it appears within the book, as it will
# help us spot omissions and mistakes!
log 0, 'Mark up headings'
[ [2, 'Foreword'],
  [2, 'Introduction'],
  [1, 'Part 1'],
  [1, 'The Big Picture'],
  [2, 'The New World of Digital Commons'],
  [3, 'The Commons, the Market, and the State'],
  [3, 'The Four Aspects of a Resource'],
  [4, 'Characteristics'],
  [4, 'People and processes'],
  [4, 'Norms and rules'],
  [4, 'Goals'],
  [3, 'A Short History of the Commons'],
  [3, 'The Digital Revolution'],
  [3, 'The Birth of Creative Commons'],
  [3, 'The Changing Market'],
  [3, 'Benefits of the Digital Commons'],
  [3, 'Our Case Studies'],
  [3, 'Notes'],
  [2, 'How to Be Made with Creative Commons'],
  [3, 'Problem Zero: Getting Discovered'],
  [4, 'Use CC to grow a larger audience'],
  [4, 'Use CC to get attribution and name recognition'],
  [4, 'Use CC-licensed content as a marketing tool'],
  [4, 'Use CC to enable hands-on engagement with your work'],
  [4, 'Use CC to differentiate yourself'],
  [3, 'Making Money'],
  [4, 'Market-based revenue streams'],
  [4, 'Providing a custom service to consumers of your work * \[MARKET-BASED\]*'],
  [4, 'Charging for the physical copy * \[MARKET-BASED\]*'],
  [4, 'Charging for the in-person version * \[MARKET-BASED\]*'],
  [4, 'Selling merchandise * \[MARKET-BASED\]*'],
  [4, 'Charging advertisers or sponsors * \[MARKET-BASED\]*'],
  [4, 'Charging your content creators * \[MARKET-BASED\]*'],
  [4, 'Charging a transaction fee * \[MARKET-BASED\]*'],
  [4, 'Providing a service to your creators* \[MARKET-BASED\]*'],
  [4, 'Licensing a trademark* \[MARKET-BASED\]*'],
  [4, 'Reciprocity-based revenue streams'],
  [4, 'Memberships and individual donations *\[RECIPROCITY-BASED\]*'],
  [4, 'The pay-what-you-want model *\[RECIPROCITY-BASED\]*'],
  [4, 'Crowdfunding *\[RECIPROCITY-BASED\]*'],
  [3, 'Making Human Connections'],
  [4, 'Be human'],
  [4, 'Be open and accountable'],
  [4, 'Design for the good actors'],
  [4, 'Treat humans like, well, humans'],
  [4, 'State your principles and stick to them'],
  [4, 'Build a community'],
  [4, 'Give more to the commons than you take'],
  [4, 'Involve people in what you do'],
  [4, 'Notes'],
  [2, 'The Creative Commons Licenses'],
  [1, 'Part 2'],
  [1, 'The Case Studies'],
  [2, 'Arduino'],
  [2, 'Ártica'],
  [2, 'Blender Institute'],
  [2, 'Cards Against Humanity'],
  [2, 'The Conversation'],
  [2, 'Cory Doctorow'],
  [2, 'Figshare'],
  [2, 'Figure.NZ'],
  [2, 'Knowledge Unlatched'],
  [2, 'Lumen Learning'],
  [2, 'Jonathan Mann'],
  [2, 'Noun Project'],
  [2, 'Open Data Institute'],
  [2, 'OpenDesk'],
  [2, 'OpenStax'],
  [2, 'Amanda Palmer'],
  [2, 'PLOS (Public Library of Science)'],
  [2, 'Rijksmuseum'],
  [2, 'Shareable'],
  [2, 'Siyavula'],
  [2, 'Sparkfun'],
  [2, 'TeachAIDS'],
  [2, 'Tribe of Noise'],
  [2, 'Wikimedia Foundation'],
  [2, 'Bibliography'],
  [2, 'Acknowledgments'],
  
].each do |item|
  log 1, item.join(' -> ')
  at = data.index {|i| i == item[1]}
  if at.nil?
    raise RuntimeError, 'Heading string (level %d) not found: «%s»' % item
  end
  data[at] = '%s %s' % ['#' * item[0], data[at]]
end



# Join erroneously split paragraphs: Write the contents of the line
# _preceding_ the unneeded break, the break will be removed.
log 0, 'Join erroneously split paragraphs'
['content and, in turn, spend money and',
 'still other',
 'content functions as a marketing tool for the paid product or',
 'to the values symbolized by',
 'the kinds of participative communities that drive open',
 'At a minimum, a CC-',
 'easier to trust a',
 'free download, the',
 'openness to fans remixing the game—give',
 'Attribution-',
 'both journal publishers and researchers. Figshare now provides',
 'get the “network effect”—',
 'access to scholarly books. For Frances, the current scholarly-',
 'for-',
 'sales',
 'contributing to the open',
 'doesn’t seem like it should be sung about',
 'songwriter, and he has found a way to keep it interesting for',
 'building trust is the top',
 'license',
 'authors and Shuttleworth; Mark remains incredibly proud of this',
 'BY-SA and opting in others with collecting societies like',
 'Cecilie Maria, Cedric Howe, Cefn Hoile,',
 'Braddlee, Drew Spencer, Duncan',
 'Elizabeth Holloway, Ellen Buecher, Ellen Kaye-',
 'Helen',
].each do |line|
  log 1, line
  at = data.index {|i| i == line}
  if !at.nil? and data[at+1] == ''
    data.delete_at(at+1)
  end
end

log 0, 'Writing processed file'
File.open(dstfile, 'w') {|f| f.puts data.join("\n")}