class Event

# File lib/hanreki/event.rb, line 28
def self.from_master(filename, line_number, month, line)
  event = Event.new({
    row: line,
    filename: filename,
    line_number: line_number,
  })
  first_day = Date.parse("#{month}01")
  raise ValidationError.new(event), 'invalid number of columns' unless line.length == 7
  day, dow, hour_start, hour_end, public_summary, private_summary, url = line.fields.map { |c| c.to_s.strip }
  # Zero-fill (eg. 1 -> 01, 02 -> 02)
  day = day.rjust(2, "0")
  raise ValidationError.new(event), 'invalid day' unless day.length == 2
  raise ValidationError.new(event), 'invalid day' unless (first_day...first_day.next_month).include?(Date.parse("#{month}#{day}"))
  event.start = Time.parse("#{month}#{day} #{hour_start} +09:00").getlocal("+09:00")
  event.end = Time.parse("#{month}#{day} #{hour_end} +09:00").getlocal("+09:00")
  event.public_summary = public_summary unless public_summary.empty?
  event.private_summary = private_summary unless private_summary.empty?
  event.url = url unless url.empty?
  # 曜日はインスタンス変数に保持しないのでここでチェックする
  raise ValidationError.new(event), 'invalid day of the week' unless DOWS.include? dow
  raise ValidationError.new(event), 'invalid day of the week' unless DOWS[event.start.wday] == dow
  event.validate
  event
end

# File lib/hanreki/event.rb, line 140
def self.master_header
  %w(day day_of_week hour_start hour_end public_summary private_summary url)
end

# File lib/hanreki/event.rb, line 14
def initialize(attributes)
  # Create assign methods for event attributes
  attributes.each do |attribute, v|
    send("#{attribute}=", v) if respond_to?("#{attribute}=")
  end if attributes
  yield self if block_given?
end

# File lib/hanreki/event.rb, line 144
def ==(other)
  self.class == other.class && self.state == other.state
end

# File lib/hanreki/event.rb, line 81
def private?
  !@private_summary.nil?
end

# File lib/hanreki/event.rb, line 85
def public?
  !@public_summary.nil?
end

# File lib/hanreki/event.rb, line 53
def to_h(type, time_type = :time)
  fail ValidationError.new(self), 'invalid type' unless [:public, :private].include?(type)
  fail ValidationError.new(self), 'invalid time_type' unless [:time, :string].include?(time_type)
  hash = {
    start: @start,
    end: @end,
    url: @url
  }
  case type
  when :public then hash[:title] = @public_summary
  when :private then hash[:title] = @private_summary
  end
  if time_type == :string
    hash[:start] = hash[:start].iso8601
    hash[:end] = hash[:end].iso8601
  end
  hash
end

# File lib/hanreki/event.rb, line 73
def to_master
  dow = DOWS[@start.wday]
  date_str = @start.strftime('%d')
  start_string = @start.strftime('%R')
  end_string =  @end.strftime('%R')
  [date_str, dow, start_string, end_string, @public_summary, @private_summary, @url]
end

# File lib/hanreki/event.rb, line 91
def validate
  raise ValidationError.new(self), 'invalid start & end' if @start > @end

  if @public_summary.nil? and @private_summary.nil?
    raise ValidationError.new(self), 'both summaries are not set'
  end

  if @public_summary == 'Open'
    if @start == @end
      raise ValidationError.new(self), '"open" event should have duration'
    end
  end

  if @public_summary == 'Make'
    if @start == @end
      raise ValidationError.new(self), '"make" event should have duration'
    end
  end

  if @public_summary == 'Online Open'
    if @start == @end
      raise ValidationError.new(self), '"online open" event should have duration'
    end
  end

  if @private_summary == 'Closed'
    if not @public_summary.nil?
      raise ValidationError.new(self), 'invalid public summary for a closed event'
    end

    if not @start.is_midnight_in_jst
      raise ValidationError.new(self), 'start must be 0:00 for a closed event'
    end

    if not @end.is_midnight_in_jst
      raise ValidationError.new(self), 'end must be 0:00 for a closed event'
    end
  end

  unless @url.nil?
    unless @url.start_with?('http://') or @url.start_with?('https://')
      raise ValidationError.new(self), 'invalid url scheme'
    end
  end

  true
end

# File lib/hanreki/event.rb, line 150
def state
  [@start, @end, @public_summary, @private_summary, @url]
end