Created
December 26, 2017 12:19
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# frozen_string_literal: true | |
module Distribution::Transmission::Hooks::Hookable | |
HookError = Class.new(StandardError) | |
UnexistentHookError = Class.new(HookError) | |
class << self | |
def included(base_class) | |
base_class.extend ClassMethods | |
end | |
end | |
def call_abort_hooks!(source, **params) | |
results = self.class.send(:abort_hooks).map { |hook| hook.call(source, params) } | |
results.any? { |result| result == true } | |
end | |
def call_before_hooks!(source, **params) | |
self.class.send(:before_hooks).each { |hook| hook.call(source, params) } | |
end | |
def call_after_hooks!(source, result, **params) | |
self.class.send(:after_hooks).each { |hook| hook.call(source, result, params) } | |
end | |
module ClassMethods | |
def before_hook(hook_name, **options) | |
hook_instance = create_hook(hook_name, **options) | |
add_before_hook(hook_instance) | |
end | |
def after_hook(hook_name, **options) | |
hook_instance = create_hook(hook_name, **options) | |
add_after_hook(hook_instance) | |
end | |
def abort_hook(hook_name, **options) | |
hook_instance = create_hook(hook_name, **options) | |
add_abort_hook(hook_instance) | |
end | |
private | |
def create_hook(hook_name, **options) | |
hook_class = resolve_hook_class(hook_name) | |
hook_class.new(**options) | |
end | |
def resolve_hook_class(hook_name) | |
"Distribution::Transmission::Hooks::#{hook_name.to_s.camelize}".constantize | |
rescue NameError | |
raise UnexistentHookError | |
end | |
def after_hooks | |
@after_hooks ||= [] | |
end | |
def before_hooks | |
@before_hooks ||= [] | |
end | |
def abort_hooks | |
@abort_hooks ||= [] | |
end | |
def add_after_hook(hook_instance) | |
after_hooks << hook_instance | |
end | |
def add_before_hook(hook_instance) | |
before_hooks << hook_instance | |
end | |
def add_abort_hook(hook_instance) | |
abort_hooks << hook_instance | |
end | |
end | |
end |
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