# == Schema Information
#
# Table name: orgs
#
#  id                     :integer          not null, primary key
#  abbreviation           :string
#  banner_text            :text
#  contact_email          :string
#  contact_name           :string
#  feedback_email_msg     :text
#  feedback_email_subject :string
#  feedback_enabled       :boolean          default(FALSE)
#  is_other               :boolean
#  links                  :text             default({"org"=>[]})
#  logo_file_name         :string
#  logo_name              :string
#  logo_uid               :string
#  name                   :string
#  org_type               :integer          default(0), not null
#  sort_name              :string
#  target_url             :string
#  wayfless_entity        :string
#  created_at             :datetime         not null
#  updated_at             :datetime         not null
#  language_id            :integer
#  parent_id              :integer
#  region_id              :integer
#
# Foreign Keys
#
#  fk_rails_...  (language_id => languages.id)
#  fk_rails_...  (region_id => regions.id)
#

class Org < ActiveRecord::Base
  include ValidationMessages
  include ValidationValues
  include GlobalHelpers
  include FlagShihTzu
  extend Dragonfly::Model::Validations
  validates_with OrgLinksValidator

  LOGO_FORMATS = %w[jpeg png gif jpg bmp].freeze

  # Stores links as an JSON object: { org: [{"link":"www.example.com","text":"foo"}, ...] }
  # The links are validated against custom validator allocated at validators/template_links_validator.rb
  serialize :links, JSON


  # ================
  # = Associations =
  # ================

  belongs_to :language

  belongs_to :region

  has_many :guidance_groups, dependent: :destroy

  has_many :templates

  has_many :users

  has_many :annotations

  has_and_belongs_to_many :token_permission_types, join_table: "org_token_permissions", unique: true

  has_many :org_identifiers

  has_many :identifier_schemes, through: :org_identifiers


  # ===============
  # = Validations =
  # ===============

  validates :name, presence: { message: PRESENCE_MESSAGE },
                   uniqueness: { message: UNIQUENESS_MESSAGE }

  validates :abbreviation, presence: { message: PRESENCE_MESSAGE },
                           uniqueness: { message: UNIQUENESS_MESSAGE }

  validates :is_other, inclusion: { in: BOOLEAN_VALUES,
                                    message: INCLUSION_MESSAGE }

  validates :language, presence: { message: PRESENCE_MESSAGE }

  validates :contact_email, email: { allow_nil: true },
                            presence: { message: PRESENCE_MESSAGE,
                                        if: :feedback_enabled }

  validates :org_type, presence: { message: PRESENCE_MESSAGE }

  validates :feedback_enabled, inclusion: { in: BOOLEAN_VALUES,
                                            message: INCLUSION_MESSAGE }

  validates :feedback_email_subject, presence: { message: PRESENCE_MESSAGE,
                                                 if: :feedback_enabled }

  validates :feedback_email_msg, presence: { message: PRESENCE_MESSAGE,
                                             if: :feedback_enabled }

  validates_property :format, of: :logo, in: LOGO_FORMATS,
                     message: _("must be one of the following formats: jpeg, jpg, png, gif, bmp")

  validates_size_of :logo, maximum: 500.kilobytes, message: _("can't be larger than 500KB")

  # allow validations for logo upload
  dragonfly_accessor :logo do
    after_assign :resize_image
  end

  ##
  # Define Bit Field values
  # Column org_type
  has_flags 1 => :institution,
            2 => :funder,
            3 => :organisation,
            4 => :research_institute,
            5 => :project,
            6 => :school,
            column: 'org_type'

  # Predefined queries for retrieving the managain organisation and funders
  scope :managing_orgs, -> { where(abbreviation: Rails.configuration.branding[:organisation][:abbreviation]) }

  scope :search, -> (term) {
    search_pattern = "%#{term}%"
    where("orgs.name LIKE ? OR orgs.contact_email LIKE ?", search_pattern, search_pattern)
  }

  after_create :create_guidance_group

  # EVALUATE CLASS AND INSTANCE METHODS BELOW
  #
  # What do they do? do they do it efficiently, and do we need them?

  # Determines the locale set for the organisation
  # @return String or nil
  def get_locale
    if !self.language.nil?
      return self.language.abbreviation
    else
      return nil
    end
  end

# TODO: Should these be hardcoded? Also, an Org can currently be multiple org_types at one time.
#       For example you can do: funder = true; project = true; school = true
#       Calling type in the above scenario returns "Funder" which is a bit misleading
#       Is FlagShihTzu's Bit flag the appropriate structure here or should we use an enum?
#       Tests are setup currently to work with this issue.
  ##
  # returns the name of the type of the organisation as a string
  # defaults to none if no org type present
  #
  # @return [String]
  def org_type_to_s
    ret = []
    ret << "Institution" if self.institution?
    ret << "Funder" if self.funder?
    ret << "Organisation" if self.organisation?
    ret << "Research Institute" if self.research_institute?
    ret << "Project" if self.project?
    ret << "School" if self.school?
    return (ret.length > 0 ? ret.join(', ') : "None")
  end

  def funder_only?
    self.org_type == Org.org_type_values_for(:funder).min
  end

  ##
  # returns the name of the organisation
  #
  # @return [String]
  def to_s
    name
  end

  ##
  # returns the abbreviation for the organisation if it exists, or the name if not
  #
  # @return [String] name or abbreviation of the organisation
  def short_name
    if abbreviation.nil? then
      return name
    else
      return abbreviation
    end
  end

  ##
  # returns all published templates belonging to the organisation
  #
  # @return [Array<Template>] published templates
	def published_templates
		return templates.where("published = ?", true)
	end

  def check_api_credentials
    if token_permission_types.count == 0
      users.each do |user|
        user.api_token = ""
        user.save!
      end
    end
  end

  def org_admins
    User.joins(:perms).where("users.org_id = ? AND perms.name IN (?)", self.id,
      ['grant_permissions', 'modify_templates', 'modify_guidance', 'change_org_details'])
  end

  def plans
    Plan.includes(:template, :phases, :roles, :users).joins(:roles, :users).where('users.org_id = ? AND roles.access IN (?)',
      self.id, Role.access_values_for(:owner).concat(Role.access_values_for(:administrator)))
  end

  def grant_api!(token_permission_type)
    self.token_permission_types << token_permission_type unless self.token_permission_types.include? token_permission_type
  end

  private

  ##
  # checks size of logo and resizes if necessary
  #
  def resize_image
    unless logo.nil?
      if logo.height != 100
        self.logo = logo.thumb('x100')  # resize height and maintain aspect ratio
      end
    end
  end

  # creates a dfefault Guidance Group on create on the Org
  def create_guidance_group
    GuidanceGroup.create!({
      name: abbreviation? ? self.abbreviation : self.name ,
      org: self,
      optional_subset: false,
      published: false,
    })
  end
end