class SuperDiff::RSpec::OperationTreeBuilders::CollectionContainingExactly

# File lib/super_diff/rspec/operation_tree_builders/collection_containing_exactly.rb, line 5
def self.applies_to?(expected, actual)
  SuperDiff::RSpec.a_collection_containing_exactly_something?(expected) &&
    actual.is_a?(::Array)
end

# File lib/super_diff/rspec/operation_tree_builders/collection_containing_exactly.rb, line 10
def initialize(actual:, **)
  super
  populate_pairings_maximizer_in_expected_with(actual)
end

# File lib/super_diff/rspec/operation_tree_builders/collection_containing_exactly.rb, line 37
def build_operation_tree
  OperationTrees::Array.new([])
end

# File lib/super_diff/rspec/operation_tree_builders/collection_containing_exactly.rb, line 17
def unary_operations
  operations = []

  (0...actual.length).reject do |index|
    indexes_in_actual_but_not_in_expected.include?(index)
  end.each do |index|
    add_noop_to(operations, index)
  end

  indexes_in_actual_but_not_in_expected.each do |index|
    add_insert_to(operations, index)
  end

  indexes_in_expected_but_not_in_actual.each do |index|
    add_delete_to(operations, index)
  end

  operations
end

# File lib/super_diff/rspec/operation_tree_builders/collection_containing_exactly.rb, line 58
def add_delete_to(operations, index)
  value = expected.expected[index]
  operations << ::SuperDiff::Operations::UnaryOperation.new(
    name: :delete,
    collection: collection,
    key: index,
    value: value,
    index: index,
  )
end

# File lib/super_diff/rspec/operation_tree_builders/collection_containing_exactly.rb, line 69
def add_insert_to(operations, index)
  value = actual[index]
  operations << ::SuperDiff::Operations::UnaryOperation.new(
    name: :insert,
    collection: collection,
    key: index,
    value: value,
    index: index,
  )
end

# File lib/super_diff/rspec/operation_tree_builders/collection_containing_exactly.rb, line 47
def add_noop_to(operations, index)
  value = actual[index]
  operations << ::SuperDiff::Operations::UnaryOperation.new(
    name: :noop,
    collection: collection,
    key: index,
    value: value,
    index: index,
  )
end

# File lib/super_diff/rspec/operation_tree_builders/collection_containing_exactly.rb, line 80
def collection
  actual + values_in_expected_but_not_in_actual
end

# File lib/super_diff/rspec/operation_tree_builders/collection_containing_exactly.rb, line 90
def indexes_in_actual_but_not_in_expected
  @indexes_in_actual_but_not_in_expected ||=
    pairings_maximizer_best_solution.unmatched_actual_indexes
end

# File lib/super_diff/rspec/operation_tree_builders/collection_containing_exactly.rb, line 95
def indexes_in_expected_but_not_in_actual
  pairings_maximizer_best_solution.unmatched_expected_indexes
end

# File lib/super_diff/rspec/operation_tree_builders/collection_containing_exactly.rb, line 99
def pairings_maximizer_best_solution
  expected.__send__(:best_solution)
end

# File lib/super_diff/rspec/operation_tree_builders/collection_containing_exactly.rb, line 43
def populate_pairings_maximizer_in_expected_with(actual)
  expected.matches?(actual)
end

# File lib/super_diff/rspec/operation_tree_builders/collection_containing_exactly.rb, line 84
def values_in_expected_but_not_in_actual
  indexes_in_expected_but_not_in_actual.map do |index|
    expected.expected[index]
  end
end