# Override normal mappings to fit our Merb project. Adapted from Autotest's 
# Rails mapping.

Autotest.add_hook :initialize do |at|

  at.add_exception %r%^\./(?:doc|log|public|tmp)%
  
  at.clear_mappings
  
  # Assumes that anything in the base lib directory is for models
  at.add_mapping %r%^lib\/.*\.rb$% do |filename, _|
    at.files_matching %r%^spec/models/#{File.basename(filename, '.rb')}_test.rb$%
  end
  
  # Anytime a fixture is changed, check specs for models, controllers, and views
  at.add_mapping %r%^spec/fixtures/(.*)s.yml% do |_, m|
    [
      "spec/models/#{m[1]}_spec.rb",
      "spec/controllers/#{m[1]}_controller_spec.rb",
      "spec/views/#{m[1]}_view_spec.rb",
    ]
  end
  
  # Run a spec if it changes
  at.add_mapping %r%^spec/(models|controllers|views)/.*rb$% do |filename, _|
    filename
  end

  # If a model changes, run its spec
  at.add_mapping %r%^app/models/(.*)\.rb$% do |_, m|
    "spec/models/#{m[1]}_spec.rb"
  end
  
  # If the global helper changes, run specs for controllers and views
  at.add_mapping %r%^app/helpers/global_helper.rb% do
    at.files_matching %r%^spec/(views|controllers)/.*_spec\.rb$%
  end

  # If a helper changes, run specs for controllers and helpers
  at.add_mapping %r%^app/helpers/(.*)_helper.rb% do |_, m|
    if m[1] == "global" then
      at.files_matching %r%^spec/(views|controllers)/.*_spec\.rb$%
    else
      [
        "spec/views/#{m[1]}_view_spec.rb",
        "spec/controllers/#{m[1]}_controller_spec.rb"
      ]
    end
  end

  # If a view changes, run specs for controllers and views
  at.add_mapping %r%^app/views/(.*)/% do |_, m|
    [
      "spec/views/#{m[1]}_view_spec.rb",
      "spec/functional/#{m[1]}_controller_spec.rb"
    ]
  end
  
  # If the application controller changes, or the exception controller 
  # changes, run all controller and view specs. If any other controller 
  # changes, run its spec.
  at.add_mapping %r%^app/controllers/(.*)\.rb$% do |_, m|
    if %w[application exceptions].include?(m[1]) then
      at.files_matching %r%^spec/(controllers|views)/.*_spec\.rb$%
    else
      ["spec/controllers/#{m[1]}_spec.rb"]
    end
  end
  
  # Not really sure what this is for.
  at.add_mapping %r%^app/views/layouts/% do
    "spec/views/layouts_view_spec.rb"
  end
  
  # If the route changes, run all specs for controllers and views
  at.add_mapping %r%^config/router.rb$% do # FIX <-- message from original source
    at.files_matching %r%^spec/(controllers|views)/.*_spec\.rb$%
  end

  # Numerous other things
  at.add_mapping %r%^spec/spec_helper.rb|config/((init|rack|environment(s/test)?).rb|database.yml)% do
    at.files_matching %r%^spec/(models|controllers|views)/.*_spec\.rb$%
  end

end