# frozen_string_literal: true

module Capybara
  module RSpecMatchers
    class Matcher
      if defined?(::RSpec::Expectations::Version)
        require 'capybara/rspec/compound'
        include ::Capybara::RSpecMatchers::Compound
      end

      attr_reader :failure_message, :failure_message_when_negated

      def wrap(actual)
        actual = actual.to_capybara_node if actual.respond_to?(:to_capybara_node)
        @context_el = if actual.respond_to?(:has_selector?)
          actual
        else
          Capybara.string(actual.to_s)
        end
      end

    private

      def wrap_matches?(actual)
        yield(wrap(actual))
      rescue Capybara::ExpectationNotMet => e
        @failure_message = e.message
        return false
      end

      def wrap_does_not_match?(actual)
        yield(wrap(actual))
      rescue Capybara::ExpectationNotMet => e
        @failure_message_when_negated = e.message
        return false
      end

      def session_query_args
        if @args.last.is_a? Hash
          @args.last[:session_options] = session_options
        else
          @args.push(session_options: session_options)
        end
        @args
      end

      def session_options
        @context_el ||= nil
        if @context_el.respond_to? :session_options
          @context_el.session_options
        elsif @context_el.respond_to? :current_scope
          @context_el.current_scope.session_options
        else
          Capybara.session_options
        end
      end
    end

    class HaveSelector < Matcher
      def initialize(*args, &filter_block)
        @args = args
        @filter_block = filter_block
      end

      def matches?(actual)
        wrap_matches?(actual) { |el| el.assert_selector(*@args, &@filter_block) }
      end

      def does_not_match?(actual)
        wrap_does_not_match?(actual) { |el| el.assert_no_selector(*@args, &@filter_block) }
      end

      def description
        "have #{query.description}"
      end

      def query
        @query ||= Capybara::Queries::SelectorQuery.new(*session_query_args, &@filter_block)
      end
    end

    class HaveAllSelectors < Matcher
      def initialize(*args, &filter_block)
        @args = args
        @filter_block = filter_block
      end

      def matches?(actual)
        wrap_matches?(actual) { |el| el.assert_all_of_selectors(*@args, &@filter_block) }
      end

      def does_not_match?(_actual)
        raise ArgumentError, "The have_all_selectors matcher does not support use with not_to/should_not"
      end

      def description
        "have all selectors"
      end
    end

    class HaveNoSelectors < Matcher
      def initialize(*args, &filter_block)
        @args = args
        @filter_block = filter_block
      end

      def matches?(actual)
        wrap_matches?(actual) { |el| el.assert_none_of_selectors(*@args, &@filter_block) }
      end

      def does_not_match?(_actual)
        raise ArgumentError, "The have_none_of_selectors matcher does not support use with not_to/should_not"
      end

      def description
        "have no selectors"
      end
    end

    class MatchSelector < HaveSelector
      def matches?(actual)
        wrap_matches?(actual) { |el| el.assert_matches_selector(*@args, &@filter_block) }
      end

      def does_not_match?(actual)
        wrap_does_not_match?(actual) { |el| el.assert_not_matches_selector(*@args, &@filter_block) }
      end

      def description
        "match #{query.description}"
      end

      def query
        @query ||= Capybara::Queries::MatchQuery.new(*session_query_args, &@filter_block)
      end
    end

    class HaveText < Matcher
      def initialize(*args)
        @args = args.dup
        @content = args[0].is_a?(Symbol) ? args[1] : args[0]
      end

      def matches?(actual)
        wrap_matches?(actual) { |el| el.assert_text(*@args) }
      end

      def does_not_match?(actual)
        wrap_does_not_match?(actual) { |el| el.assert_no_text(*@args) }
      end

      def description
        "text #{format(@content)}"
      end

      def format(content)
        content = Capybara::Helpers.normalize_whitespace(content) unless content.is_a? Regexp
        content.inspect
      end
    end

    class HaveTitle < Matcher
      def initialize(*args)
        @args = args

        # are set just for backwards compatability
        @title = args.first
      end

      def matches?(actual)
        wrap_matches?(actual) { |el| el.assert_title(*@args) }
      end

      def does_not_match?(actual)
        wrap_does_not_match?(actual) { |el| el.assert_no_title(*@args) }
      end

      def description
        "have title #{@title.inspect}"
      end
    end

    class HaveCurrentPath < Matcher
      def initialize(*args)
        @args = args
        @current_path = args.first
      end

      def matches?(actual)
        wrap_matches?(actual) { |el| el.assert_current_path(*@args) }
      end

      def does_not_match?(actual)
        wrap_does_not_match?(actual) { |el| el.assert_no_current_path(*@args) }
      end

      def description
        "have current path #{@current_path.inspect}"
      end
    end

    class NegatedMatcher
      def initialize(matcher)
        @matcher = matcher
      end

      def matches?(actual)
        @matcher.does_not_match?(actual)
      end

      def does_not_match?(actual)
        @matcher.matches?(actual)
      end

      def description
        "not #{@matcher.description}"
      end

      def failure_message
        @matcher.failure_message_when_negated
      end

      def failure_message_when_negated
        @matcher.failure_message
      end
    end

    class BecomeClosed
      def initialize(options)
        @options = options
      end

      def matches?(window)
        @window = window
        @wait_time = Capybara::Queries::BaseQuery.wait(@options, window.session.config.default_max_wait_time)
        start_time = Capybara::Helpers.monotonic_time
        while window.exists?
          return false if (Capybara::Helpers.monotonic_time - start_time) > @wait_time
          sleep 0.05
        end
        true
      end

      def failure_message
        "expected #{@window.inspect} to become closed after #{@wait_time} seconds"
      end

      def failure_message_when_negated
        "expected #{@window.inspect} not to become closed after #{@wait_time} seconds"
      end
    end

    # RSpec matcher for whether the element(s) matching a given selector exist
    # See {Capybara::Node::Matcher#assert_selector}
    def have_selector(*args, &optional_filter_block)
      HaveSelector.new(*args, &optional_filter_block)
    end

    # RSpec matcher for whether the element(s) matching a group of selectors exist
    # See {Capybara::Node::Matcher#assert_all_of_selectors}
    def have_all_of_selectors(*args, &optional_filter_block)
      HaveAllSelectors.new(*args, &optional_filter_block)
    end

    # RSpec matcher for whether no element(s) matching a group of selectors exist
    # See {Capybara::Node::Matcher#assert_none_of_selectors}
    def have_none_of_selectors(*args, &optional_filter_block)
      HaveNoSelectors.new(*args, &optional_filter_block)
    end

    # RSpec matcher for whether the current element matches a given selector
    # See {Capybara::Node::Matchers#assert_matches_selector}
    def match_selector(*args, &optional_filter_block)
      MatchSelector.new(*args, &optional_filter_block)
    end

    ::RSpec::Matchers.define_negated_matcher :not_match_selector, :match_selector if defined?(::RSpec::Matchers)

    # RSpec matcher for whether elements(s) matching a given xpath selector exist
    # See {Capybara::Node::Matchers#has_xpath?}
    def have_xpath(xpath, **options, &optional_filter_block)
      HaveSelector.new(:xpath, xpath, options, &optional_filter_block)
    end

    # RSpec matcher for whether the current element matches a given xpath selector
    def match_xpath(xpath, **options, &optional_filter_block)
      MatchSelector.new(:xpath, xpath, options, &optional_filter_block)
    end

    # RSpec matcher for whether elements(s) matching a given css selector exist
    # See {Capybara::Node::Matchers#has_css?}
    def have_css(css, **options, &optional_filter_block)
      HaveSelector.new(:css, css, options, &optional_filter_block)
    end

    # RSpec matcher for whether the current element matches a given css selector
    def match_css(css, **options, &optional_filter_block)
      MatchSelector.new(:css, css, options, &optional_filter_block)
    end

    # RSpec matcher for text content
    # See {Capybara::SessionMatchers#assert_text}
    def have_text(*args)
      HaveText.new(*args)
    end
    alias_method :have_content, :have_text


    def have_title(title, **options)
      HaveTitle.new(title, options)
    end

    # RSpec matcher for the current path
    # See {Capybara::SessionMatchers#assert_current_path}
    def have_current_path(path, **options)
      HaveCurrentPath.new(path, options)
    end

    # RSpec matcher for links
    # See {Capybara::Node::Matchers#has_link?}
    def have_link(locator = nil, **options, &optional_filter_block)
      HaveSelector.new(:link, locator, options, &optional_filter_block)
    end

    # RSpec matcher for buttons
    # See {Capybara::Node::Matchers#has_button?}
    def have_button(locator = nil, **options, &optional_filter_block)
      HaveSelector.new(:button, locator, options, &optional_filter_block)
    end

    # RSpec matcher for links
    # See {Capybara::Node::Matchers#has_field?}
    def have_field(locator = nil, **options, &optional_filter_block)
      HaveSelector.new(:field, locator, options, &optional_filter_block)
    end

    # RSpec matcher for checked fields
    # See {Capybara::Node::Matchers#has_checked_field?}
    def have_checked_field(locator = nil, **options, &optional_filter_block)
      HaveSelector.new(:field, locator, options.merge(checked: true), &optional_filter_block)
    end

    # RSpec matcher for unchecked fields
    # See {Capybara::Node::Matchers#has_unchecked_field?}
    def have_unchecked_field(locator = nil, **options, &optional_filter_block)
      HaveSelector.new(:field, locator, options.merge(unchecked: true), &optional_filter_block)
    end

    # RSpec matcher for select elements
    # See {Capybara::Node::Matchers#has_select?}
    def have_select(locator = nil, **options, &optional_filter_block)
      HaveSelector.new(:select, locator, options, &optional_filter_block)
    end

    # RSpec matcher for table elements
    # See {Capybara::Node::Matchers#has_table?}
    def have_table(locator = nil, **options, &optional_filter_block)
      HaveSelector.new(:table, locator, options, &optional_filter_block)
    end

    %w(selector css xpath text title current_path link button field checked_field unchecked_field select table).each do |matcher_type|
      define_method "have_no_#{matcher_type}" do |*args, &optional_filter_block|
        NegatedMatcher.new(send("have_#{matcher_type}", *args, &optional_filter_block))
      end
    end
    alias_method :have_no_content, :have_no_text

    ##
    # Wait for window to become closed.
    # @example
    #   expect(window).to become_closed(wait: 0.8)
    # @param options [Hash] optional param
    # @option options [Numeric] :wait (Capybara.default_max_wait_time) Maximum wait time
    def become_closed(**options)
      BecomeClosed.new(options)
    end
  end
end