# frozen_string_literal: true

require "#{File.dirname(__FILE__)}/interceptor_resource"

module Dav4rack
  # Interceptor
  class Interceptor
    def initialize(app, args = {})
      @roots = args[:mappings].keys
      @args = args
      @app = app
      @intercept_methods = %w[OPTIONS PROPFIND PROPPATCH MKCOL COPY MOVE LOCK UNLOCK]
      @intercept_methods -= args[:ignore_methods] if args[:ignore_methods]
    end

    def call(env)
      path = env['PATH_INFO'].downcase
      method = env['REQUEST_METHOD'].upcase
      app = nil
      if @roots.detect { |x| path =~ %r{^#{Regexp.escape(x.downcase)}/?} }.nil? && @intercept_methods.include?(method)
        app = Dav4rack::Handler.new(
          resource_class: InterceptorResource,
          mappings: @args[:mappings],
          log_to: @args[:log_to]
        )
      end
      app ? app.call(env) : @app.call(env)
    end
  end
end