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# File 'lib/zendesk_apps_support/validations/banner.rb', line 11
def call(package)
File.open(package.path_to('assets/banner.png'), 'rb') do |fh|
begin
image = ImageSize.new(fh)
unless image.format == :png
return [ValidationError.new('banner.invalid_format')]
end
unless (image.width == BANNER_WIDTH && image.height == BANNER_HEIGHT) ||
(image.width == 2 * BANNER_WIDTH && image.height == 2 * BANNER_HEIGHT)
return [ValidationError.new('banner.invalid_size', required_banner_width: BANNER_WIDTH,
required_banner_height: BANNER_HEIGHT)]
end
rescue
return [ValidationError.new('banner.invalid_format')]
end
end
[]
end
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