class FormGenerator

# File lib/generators/form/form_generator.rb, line 40
def generate_form
  template 'form.rb', File.join('app/lib/forms', transformed_class_path, "#{file_name}.rb")
end

# File lib/generators/form/form_generator.rb, line 44
def generate_form_spec
  template 'form_spec.rb', File.join('spec/lib/forms', transformed_class_path, "#{file_name}_spec.rb")
end

# File lib/generators/form/form_generator.rb, line 25
def transform_naming
  return unless pluralize_collection?

  self.name = begin
    names = name.split('/')
    names[0..-3].append(names[-2].pluralize).append(names[-1]).join('/')
  end
end

# File lib/generators/form/form_generator.rb, line 34
def validate_fixed_attrs
  return unless duplicate_attributes.any?

  raise "Cannot have duplicate attributes: #{duplicate_attributes.join(', ')}"
end

# File lib/generators/form/form_generator.rb, line 50
def all_attributes
  @all_attributes ||= begin
    flattened_form_attributes
      .map(&:strip)
      .sort
  end
end

# File lib/generators/form/form_generator.rb, line 58
def all_attributes_to_pass
  @all_attributes_to_pass ||= begin
    ret = flattened_form_attributes
          .map(&:strip)
          .sort
    ret.delete(first_attribute) if create?
    ret
  end
end

# File lib/generators/form/form_generator.rb, line 72
def attributes_and_delegates
  @attributes_and_delegates ||= Hash[
    form_attributes
                                .map { |e| e.split(/:|,/).map(&method(:variablefy)) }
                                .collect { |v| [v[0], v[1..-1]] }
  ]
end

# File lib/generators/form/form_generator.rb, line 68
def attributes_with_delegates
  @attributes_with_delegates ||= attributes_and_delegates.keys.sort
end

# File lib/generators/form/form_generator.rb, line 80
def collection
  @collection ||= split_name[-2].pluralize.underscore
end

# File lib/generators/form/form_generator.rb, line 84
def collection_name
  @collection_name ||= collection.camelcase
end

# File lib/generators/form/form_generator.rb, line 88
def create?
  form == 'create'
end

# File lib/generators/form/form_generator.rb, line 92
def delegated_attributes
  @delegated_attributes ||= attributes_and_delegates
                            .select { |_k, v| v.sort!.present? }
end

# File lib/generators/form/form_generator.rb, line 107
def destroy?
  form == 'destroy'
end

# File lib/generators/form/form_generator.rb, line 97
def destroy_attribute
  @destroy_attribute ||= begin
    if all_attributes.include?(collection.singularize)
      collection.singularize
    else
      first_attribute
    end
  end
end

# File lib/generators/form/form_generator.rb, line 111
def duplicate_attributes
  @duplicate_attributes ||= all_attributes
                            .group_by { |e| e }
                            .select { |_k, v| v.size > 1 }
                            .map(&:first)
end

# File lib/generators/form/form_generator.rb, line 134
def factories
  return unless factory_bot?

  @factories ||= begin
    FactoryBot.factories.map(&:name)
  end
end

# File lib/generators/form/form_generator.rb, line 118
def factory?(attr)
  return false unless factory_bot?

  factories.include?(attr.to_sym)
end

# File lib/generators/form/form_generator.rb, line 124
def factory_bot?
  @factory_bot ||= begin
    require 'factory_bot'
    FactoryBot.find_definitions if FactoryBot.factories.count.zero?
    Class.const_defined?('FactoryBot')
  end
rescue LoadError
  false
end

# File lib/generators/form/form_generator.rb, line 142
def first_attribute
  @first_attribute ||= flattened_form_attributes.first
end

# File lib/generators/form/form_generator.rb, line 146
def flattened_form_attributes
  @flattened_form_attributes ||= form_attributes
                                 .map { |e| e.split(/:|,/) }
                                 .flatten
                                 .map(&method(:variablefy))
end

# File lib/generators/form/form_generator.rb, line 153
def form
  @form ||= variablefy(name.split('/').last)
end

# File lib/generators/form/form_generator.rb, line 157
def form_name
  @form_name ||= form.camelcase
end

# File lib/generators/form/form_generator.rb, line 161
def inferred_model_name
  @inferred_model_name ||= collection.singularize.camelcase
end

# File lib/generators/form/form_generator.rb, line 165
def lock_key
  if create?
    [":#{collection}", ':create']
  elsif update?
    [":#{collection}", method_attribute.to_s]
  elsif upsert?
    [":#{collection}", method_attribute.to_s]
  else
    ['LOCK_KEY']
  end
end

# File lib/generators/form/form_generator.rb, line 177
def method_attribute
  @method_attribute ||= begin
    if all_attributes.include?(collection.singularize)
      collection.singularize
    else
      first_attribute
    end
  end
end

# File lib/generators/form/form_generator.rb, line 187
def method_name
  if create?
    "create_#{collection.singularize}"
  elsif update?
    "update_#{collection.singularize}"
  elsif upsert?
    "upsert_#{collection.singularize}"
  else
    form
  end
end

# File lib/generators/form/form_generator.rb, line 199
def module_namespacing(&block)
  content = capture(&block)
  modules.reverse.each do |mod|
    content = wrap_with_module(content, mod)
  end
  concat(content)
end

# File lib/generators/form/form_generator.rb, line 207
def modules
  @modules ||= ['Forms'] + split_name[0..-2].map(&:to_s).map(&:camelcase)
end

# File lib/generators/form/form_generator.rb, line 211
def pluralize_collection?
  @pluralize_collection ||= options[:pluralize_collection]
end

# File lib/generators/form/form_generator.rb, line 215
def return_attribute
  @return_attribute ||= begin
    if all_attributes.include?(collection.singularize)
      collection.singularize
    elsif !form_attributes.first.nil?
      form_attributes.first.split(':').first
    end
  end
end

# File lib/generators/form/form_generator.rb, line 229
def scope_names
  @scope_names ||= scopes.map(&:camelcase)
end

# File lib/generators/form/form_generator.rb, line 225
def scopes
  @scopes ||= split_name[0..-3].map(&:underscore)
end

# File lib/generators/form/form_generator.rb, line 233
def spec_comments?
  @spec_comments ||= options[:spec_comments]
end

# File lib/generators/form/form_generator.rb, line 237
def split_name
  @split_name ||= name.split('/')
end

# File lib/generators/form/form_generator.rb, line 241
def transformed_class_path
  @transformed_class_path ||= begin
    if pluralize_collection?
      class_path[0..-2].append(class_path[-1].pluralize)
    else
      class_path
    end
  end
end

# File lib/generators/form/form_generator.rb, line 251
def update?
  form == 'update'
end

# File lib/generators/form/form_generator.rb, line 255
def upsert?
  form == 'upsert'
end

# File lib/generators/form/form_generator.rb, line 259
def upsert_delegates
  @upsert_delegates ||= begin
    if delegated_attributes.key?(method_attribute)
      delegated_attributes[method_attribute]
    else
      []
    end
  end
end

# File lib/generators/form/form_generator.rb, line 269
def variablefy(val)
  val.to_s.underscore
end

# File lib/generators/form/form_generator.rb, line 273
def wrap_with_module(content, mod)
  content = indent(content).chomp
  "module #{mod}\n#{content}\nend\n"
end