# == Schema Information
#
# Table name: issues
#
#  id          :integer          not null, primary key
#  solution    :text(65535)
#  status      :integer
#  text        :text(65535)
#  text_parsed :text(65535)
#  title       :string(255)
#  created_at  :datetime
#  updated_at  :datetime
#  assigned_id :integer
#  author_id   :integer
#  category_id :integer
#
# Indexes
#
#  index_issues_on_assigned_id  (assigned_id)
#  index_issues_on_author_id    (author_id)
#  index_issues_on_category_id  (category_id)
#

class Issue < ActiveRecord::Base
  include Extra
  
  STATUS_OPEN = 0
  STATUS_SOLVED = 1
  STATUS_REJECTED = 2

  CATEGORY_WEBSITE = 17
  CATEGORY_NSLPLUGIN = 20
  CATEGORY_LEAGUE = 22
  CATEGORY_GATHER = 54

  attr_accessor :assigned_name
  #attr_protected :id, :created_at, :updated_at

  has_many :comments, :as => :commentable
  belongs_to :category, :optional => true
  belongs_to :author, :class_name => "User", :optional => true
  belongs_to :assigned, :class_name => "User", :optional => true

  #scope :unread_by,
  #  lambda { |user| {
  #  :joins => "LEFT JOIN readings ON readable_type = 'Issue' AND readable_id = issues.id AND readings.user_id = #{user.id}",
  #  :conditions => "readings.user_id IS NULL"} }
  scope :with_status, -> (s) { where(status: s) }

  validates_length_of :title, :in => 1..50
  validates_length_of :text, :in => 1..65000
  validate :validate_status

  before_validation :init_variables, :if => Proc.new{|issue| issue.new_record?}
  before_save :parse_text
  # FIXME
  # after_save :remove_readings

  acts_as_readable

  def to_s
    title
  end

  def status_s
    statuses[status]
  end

  def statuses
    {STATUS_OPEN => "Open", STATUS_SOLVED => "Solved", STATUS_REJECTED => "Rejected"}
  end

  def color
    if status == STATUS_SOLVED
      "green"
    elsif status == STATUS_OPEN
      "yellow"
    elsif status == STATUS_REJECTED
      "red"
    end
  end

  def init_variables
    self.assigned = User.find_by_username(assigned_name) if assigned_name
    self.status = STATUS_OPEN unless status
  end

  def validate_status
    errors.add :status, I18n.t(:invalid_status) unless statuses.include? status
  end

  def parse_text
    if self.text
      self.text_parsed = bbcode_to_html(self.text)
    end
  end

  def solution_formatted
    bbcode_to_html(solution)
  end

  def can_show? cuser
    return false unless cuser
    return true if cuser.admin?

    ((author == cuser) or (Issue::allowed_categories(cuser).include?(self.category_id)))

  end

  def can_create? cuser
    true
  end

  def can_update?(cuser, params = {})
    return false unless cuser
    return true if cuser.admin?
    return false unless Issue::allowed_categories(cuser).include?(self.category_id)
    !(params.member?(:category_id) && (self.category_id.to_s != params[:category_id]))
  end

  def can_destroy? cuser
    cuser and cuser.admin?
  end

  # STATIC METHODS

  def self.allowed_categories cuser
    allowed = []
    allowed << CATEGORY_GATHER if cuser.admin? || cuser.gather_moderator? # gather
    allowed << CATEGORY_WEBSITE if cuser.admin? # website
    allowed << CATEGORY_LEAGUE if cuser.admin? # league
    allowed << CATEGORY_NSLPLUGIN if cuser.admin? # ensl plugin
    allowed
  end

  def self.params(params, cuser)
    params.require(:issue).permit(:solution, :status, :text, :title,
                                  :assigned_id, :author_id, :category_id)
  end
end