psyomn/wlog

require 'active_record'

require 'wlog/domain/log_entry'
require 'wlog/domain/timelog_helper'
require 'wlog/domain/sys_config'
require 'wlog/domain/helpers'

module Wlog
# This aggregates log entries. The total time spent on this issue is
# calculated from checking out said log entries.
# @author Simon Symeonidis
class Issue < ActiveRecord::Base

  has_many :log_entries, dependent: :delete_all
  has_many :attachments, as: :attachable

  StatusNew       = 0
  StatusStarted   = 1
  StatusFinished  = 2
  StatusArchived  = 3

  # Anything which is not archived (eg: new, started work, finished)
  def self.find_not_archived; where("status NOT IN (?)", StatusArchived) end

  # Log the seconds into the issue
  def log_time(sec)
    self.timelog += sec
    save
  end

  def to_s
    le_count = self.log_entries.count
    @strmaker = SysConfig.string_decorator
    "#{@strmaker.yellow('Issue')} ##{id}#{$/}"\
    "  #{@strmaker.blue('Reported')} : #{created_at.asctime}#{$/}"\
    "  #{@strmaker.blue('Due')}      : #{due_date.asctime} #{make_remaining_days_s}#{$/}"\
    "  #{@strmaker.blue('Entries')}  : #{le_count} #{$/}"\
    "  #{@strmaker.blue('Status')}   : #{Statuses[status]}#{$/}"\
    "  #{@strmaker.blue('Time')}     : #{TimelogHelper.time_to_s(timelog)}#{$/}"\
    "#{$/}"\
     "#{@strmaker.yellow('Summary')} #{$/}"\
    "  #{description}#{$/ + $/}"\
     "#{@strmaker.yellow('Description')} #{$/}"\
    "  #{Helpers.break_string(long_description, 80)}#{$/ + $/}"\
    "#{@strmaker.yellow('Files')}#{$/}"\
    "#{attachments_s}"
  end

  # Mark issue as started
  def mark_started!; self.status = 0 end

  # Mark the issue as working
  def mark_working!; self.status = 1 end

  # Mark the issue as finished
  def mark_finished!; self.status = 2 end

  # Archive the issue
  def archive!; self.status = 3 end

  # Get the status as a string
  def status_s; Statuses[status] end

private
  Statuses = {
    StatusNew      => "new",
    StatusStarted  => "started work",
    StatusFinished => "finished",
    StatusArchived => "archived"}

  # Stringify attachments for terminal output
  def attachments_s
    str = ''
    self.attachments.each do |att|
      str.concat(att.to_s)
    end
    str = @strmaker.red("  N/A#{$/}") if str == '' # no attachments
    str.concat($/)
  str end

  # TODO might need factoring out
  # Will make a string of the due date, and append the days that remain. On
  # dates before the due date, you get things like '+5 days'. Past due dates will
  # render '-5 days'
  # @return a string containing the number of days that remain
  def make_remaining_days_s
    days = (due_date.to_date - Time.now.to_date).to_i
    days_s = "[#{days} day#{days == 1 ? '' : 's'}]"
    make_colored_num_s(days, days_s)
  end

  # TODO might need factoring out
  # Depending on the number range we color things. Uses the strmaker, so
  # terminals with no ansi support will not see anything funky :(
  # @return yellow stringified number if 1 <= x <= 3, green for more, red for
  #   less
  def make_colored_num_s(num, num_s)
    if num >= 1 && num <= 3 
      @strmaker.yellow(num_s)
    elsif num < 1
      @strmaker.red(num_s)
    else 
      @strmaker.green(num_s)
    end
  end

private_class_method

end # class  Issue
end # module Wlog