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# frozen_string_literal: true
require 'singleton'
require_relative 'person'
require_relative 'family_factory'
class FamilyTree
include Singleton
attr_accessor :families
def initialize
@families = FamilyFactory.new.create_families
end
def add_family(family)
@families << family unless @families.include?(family)
end
def add_child(mothers_name, name, gender)
result = find_person_in_families(mothers_name)
parent_of_family = result[:parent_of_family]
return 'CHILD_ADDITION_FAILED' if parent_of_family.nil? || parent_of_family.mother.is_a?(NilPerson)
return 'CHILD_ADDITION_FAILED' if parent_of_family.children.any? { |child| child.name.casecmp(name).zero? }
child = Person.new(name, gender)
parent_of_family.add_child(child)
'CHILD_ADDED'
end
def get_relationship(name, relationship)
result = find_person_in_families(name)
person = result[:person]
parent_of_family = result[:parent_of_family]
child_of_family = result[:child_of_family]
return 'PERSON_NOT_FOUND' if person.is_a?(NilPerson)
case relationship.downcase
when 'mother', 'father'
handle_parent_relationship(child_of_family, relationship)
when 'siblings'
handle_siblings_relationship(child_of_family, name)
when 'child', 'daughter', 'son'
handle_children_relationship(parent_of_family, relationship)
when 'paternal-uncle'
handle_uncle_relationship(child_of_family, 'paternal')
when 'maternal-uncle'
handle_uncle_relationship(child_of_family, 'maternal')
when 'paternal-aunt'
handle_aunt_relationship(child_of_family, 'paternal')
when 'maternal-aunt'
handle_aunt_relationship(child_of_family, 'maternal')
when 'sister-in-law'
handle_sister_in_law_relationship(person, child_of_family)
when 'brother-in-law'
handle_brother_in_law_relationship(person, child_of_family)
else
'UNSUPPORTED_RELATIONSHIP'
end
end
private
def handle_parent_relationship(child_of_family, relationship)
parent = relationship == 'mother' ? child_of_family&.mother : child_of_family&.father
return 'PERSON_NOT_FOUND' if parent.nil? || parent.is_a?(NilPerson)
parent.name
end
def handle_siblings_relationship(child_of_family, name)
siblings = find_siblings(child_of_family, name)
siblings.empty? ? 'NONE' : siblings.map(&:name).join(' ')
end
def handle_children_relationship(parent_of_family, relationship)
return 'NONE' if parent_of_family.nil?
children = parent_of_family.children
case relationship.downcase
when 'child'
children.map(&:name).join(' ')
when 'son'
sons = children.select { |child| child.gender == Gender::MALE }
sons.empty? ? 'NONE' : sons.map(&:name).join(' ')
when 'daughter'
daughters = children.select { |child| child.gender == Gender::FEMALE }
daughters.empty? ? 'NONE' : daughters.map(&:name).join(' ')
else
'UNSUPPORTED_RELATIONSHIP'
end
end
def handle_sibling_relationship(child_of_family, type, side)
return 'NONE' if child_of_family.nil?
parent = side == 'paternal' ? child_of_family.father : child_of_family.mother
return 'NONE' if parent.nil? || parent.is_a?(NilPerson)
# Find the family where the parent is a child
parent_result = find_person_in_families(parent.name)
parent_family = parent_result[:child_of_family]
return 'NONE' if parent_family.nil?
# Find the siblings of the parent
siblings = find_siblings(parent_family, parent.name)
# Select based on sibling gender
relatives = case type
when 'uncle'
siblings.select { |sibling| sibling.gender == Gender::MALE }
when 'aunt'
siblings.select { |sibling| sibling.gender == Gender::FEMALE }
else
[]
end
relatives.empty? ? 'NONE' : relatives.map(&:name).join(' ')
end
def handle_uncle_relationship(child_of_family, type)
handle_sibling_relationship(child_of_family, 'uncle', type)
end
def handle_aunt_relationship(child_of_family, type)
handle_sibling_relationship(child_of_family, 'aunt', type)
end
def handle_sister_in_law_relationship(person, child_of_family)
find_in_laws(person, child_of_family, Gender::FEMALE)
end
def handle_brother_in_law_relationship(person, child_of_family)
find_in_laws(person, child_of_family, Gender::MALE)
end
def find_in_laws(person, child_of_family, gender)
in_laws = []
# Check for siblings of the spouse
if person.spouse.is_a?(Person)
spouse_result = find_person_in_families(person.spouse.name)
spouse_family = spouse_result[:child_of_family]
if spouse_family
spouse_siblings = find_siblings(spouse_family, person.spouse.name)
in_laws.concat(spouse_siblings.select { |sibling| sibling.gender == gender }.map(&:name))
end
end
unless child_of_family.nil?
# Check for spouses of siblings of the person
siblings = find_siblings(child_of_family, person.name)
siblings.each do |sibling|
in_laws << sibling.spouse.name if sibling.spouse && sibling.spouse.gender == gender
end
end
in_laws.uniq!
in_laws.empty? ? 'NONE' : in_laws.join(' ')
end
def find_person_in_families(name)
result = { person: NilPerson.new, parent_of_family: nil, child_of_family: nil }
families.each do |family|
# Check for mother
if family.mother&.name&.casecmp(name)&.zero?
result[:person] = family.mother
result[:parent_of_family] = family
end
# Check for father
if family.father&.name&.casecmp(name)&.zero?
result[:person] = family.father
result[:parent_of_family] = family
end
family.children.each do |child|
next if child.nil? || child.name.nil?
if child.name.casecmp(name).zero? && family != result[:parent_of_family]
result[:person] = child
result[:child_of_family] = family
end
end
end
result
end
def find_siblings(family, name)
family.children.reject { |child| child.name.casecmp(name).zero? }
end
def child_of_family?(family, name)
return false unless family.is_a?(Family)
family.children.any? do |child|
child.name.casecmp(name).zero?
end
end
end
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