# Copyright (c) 2020 Jerome Arbez-Gindre
# frozen_string_literal: true

require 'digest'

module DefMastership
  # DefMastership definition: contains all data of a definition
  class Definition
    attr_reader :type, :reference, :lines, :labels, :eref, :iref, :attributes, :explicit_version

    def initialize(match)
      @type = match[:type]
      @reference = match[:reference]
      @lines = []
      @labels = Set.new
      @labels.merge(match[:labels].split(/\s*,\s*/).to_set) if match[:labels]
      @eref = Hash.new([])
      @iref = []
      @attributes = {}
      @explicit_checksum = match[:explicit_checksum]
      @explicit_version = match[:explicit_version]
    end

    def <<(new_line)
      @lines << new_line
      self
    end

    def value
      @lines.join("\n")
    end

    def sha256
      "~#{Digest::SHA2.new(256).hexdigest(value).chars.last(8).join}"
    end

    def wrong_explicit_checksum
      @explicit_checksum if @explicit_checksum != sha256
    end

    def add_eref(refname, extrefs)
      @eref[refname] = extrefs.strip.split(/\s*,\s*/)
    end

    def add_iref(ref)
      @iref << ref
    end

    def set_attribute(key, value)
      @attributes[key] = value
    end
  end
end