class DailyPlanner

# File lib/daily_planner.rb, line 14
def initialize(filename='daily-planner.txt', path: '.', 
                                       now: DateTime.now.to_date, config: {})
  
  @filename, @path, @now = filename, path, now
  
  fpath = File.join(path, filename)
  
  if File.exists?(fpath) then
    
    @rx = import_to_rx(File.read(fpath))
    @d = Date.parse(@rx.date)
    archive()
    
    # if the date isn't today then update it to today
    refresh() if @d != @now

  else      
    @rx = new_rx
  end
  
  # check for weekly-planner entries which
  #   should be added to the daily-planner
  weeklyplanner_filepath = config[:weeklyplanner_filepath]
  
  if weeklyplanner_filepath then

    dx = Dynarex.new weeklyplanner_filepath
    record = dx.find_by_id (now+1).strftime("%Y%m%d")      

    items = record.x.lines[2..-1]
    @rx.tomorrow << "\n" + items.join if record and items

  end
  
end

# File lib/daily_planner.rb, line 50
def rx()
  @rx
end

# File lib/daily_planner.rb, line 54
def save(filename=@filename)
  
  s = File.basename(filename) + "\n" + rx_to_s(@rx).lines[1..-1].join
  File.write File.join(@path, filename), s
      
end

# File lib/daily_planner.rb, line 67
def archive()
  
  # archive the daily planner
  # e.g. dailyplanner/2015/d121215.xml
      
  archive_path = File.join(@path, @d.year.to_s)
  FileUtils.mkdir_p archive_path    
  filename = @d.strftime("d%d%m%Y.xml")
  
  File.write File.join(archive_path, filename), rx.to_xml
  
end

# File lib/daily_planner.rb, line 96
def format_row(heading, s)
  
  content = s.clone
  content.prepend "\n\n" unless content.empty?
  "%s\n%s%s" % [heading, '-' * heading.length, content]
  
end

# File lib/daily_planner.rb, line 80
def import_to_rx(s)
  
  rx = new_rx()
  
  rows = s.split(/.*(?=^[\w, ]+\n\-+)/)

  rx.date =  Date.parse(rows[1].lines.first.chomp)
  rx.today = rows[1].lines[2..-1].join.strip
  rx.tomorrow = rows[2].lines[2..-1].join.strip

  return rx
  
end

# File lib/daily_planner.rb, line 121
def new_rx(today: '', tomorrow: '')
  
  title = "Daily Planner"
  rx = RecordX.new({title: title, date: @now, \
                                           today: today, tomorrow: tomorrow})    
  return rx
end

# File lib/daily_planner.rb, line 104
def ordinal(n)
  n.to_s + ( (10...20).include?(n) ? 'th' : \
                  %w{ th st nd rd th th th th th th }[n % 10] )
end

# File lib/daily_planner.rb, line 129
def refresh()
  
  if @d != @now then
    
    @rx = if @d == @now - 1 and @rx.tomorrow.strip.length  > 0 then
      new_rx(today: @rx.tomorrow)      
    else
      new_rx()
    end
    
  end
end

# File lib/daily_planner.rb, line 94
def rx_to_s(rx)

  def format_row(heading, s)
    
    content = s.clone
    content.prepend "\n\n" unless content.empty?
    "%s\n%s%s" % [heading, '-' * heading.length, content]
    
  end

  def ordinal(n)
    n.to_s + ( (10...20).include?(n) ? 'th' : \
                    %w{ th st nd rd th th th th th th }[n % 10] )
  end

  d = Date.parse(rx.date)

  heading =  "%s, %s %s" % [Date::DAYNAMES[d.wday], ordinal(d.day), 
                                              Date::ABBR_MONTHNAMES[d.month]]
  rows = [format_row(heading, rx.today)]
  rows << format_row('Tomorrow', rx.tomorrow)

  title = File.basename(@filename)
  title + "\n" + "=" * title.length + "\n\n%s\n\n" % [rows.join("\n\n")]

end