generate_routes.cr

generate_routes.cr

require "json"

class RouteJSON
  JSON.mapping({
    verb:        String,
    controller:  String,
    action:      String,
    pipeline:    String,
    scope:       String,
    uri_pattern: String,
  })
end

output = <<-CRYSTAL
  # autogenerated file by generate_routes.cr, please do not edit
  module ViewPathHelper
  
  def active_path(path) : Bool
    context.request.path.starts_with? path
  end
CRYSTAL

routes = Array(RouteJSON).from_json(`amber routes --json`)
routes.each do |route|
  route_method = (route.action + "_" + route.controller.sub("Controller", "").gsub { |c|
    if /[A-Z]/.match(c.to_s)
      "_" + c
    else
      c
    end
  }.downcase.gsub(/_+/, '_').gsub(/^_/, "").gsub(':', '_') + "_path").gsub(/_+/, '_')
  route_path = "#{route.scope}#{route.uri_pattern}"
  puts "#{route_method} => #{route_path}"
  if !route.uri_pattern.includes?(":") && !route.scope.includes?(":")
    output += <<-CRYSTAL

      macro #{route_method}
        "#{route_path}"
      end

      CRYSTAL
  else
    if route_path.count(':') == 1
      route_split = route_path.split(/:[a-zA-Z_]*/)
      arg_name = route_path.match(/(:[a-zA-Z_]*)/).not_nil![0].gsub(':', "").gsub('-', '_')
      path = <<-CRYSTAL
      def #{route_method}(#{arg_name} : String): String
          "#{route_split[0]}" + #{arg_name} + "#{route_split[1]}"
      end

    CRYSTAL
      path = path.gsub(" + \"\"", "")
      output += path
    else
      arg_names = route_path.split("/").reject do |name|
        !name.starts_with?(':')
      end
      arg_names = arg_names.map do |name|
        name.gsub(':', "").gsub('-', '_')
      end
      list_of_args = ""
      arg_names.each_with_index do |arg, i|
        list_of_args = list_of_args + arg + " : String"
        if i < arg_names.size - 1
          list_of_args += ", "
        end
      end
      route_concatenation = ""
      route = route_path.split(/:[a-zA-Z_]*/).each_with_index do |split, i|
        route_concatenation += "\"" + split + "\" + "
        if i < arg_names.size
          route_concatenation += arg_names[i] + " + "
        end
      end
      route_concatenation = route_concatenation.gsub(/\+ $/, "").gsub(/\+ \"\"/, "")
      output += <<-CRYSTAL
      def #{route_method}(#{list_of_args}) : String
        #{route_concatenation}
      end

      CRYSTAL
    end
  end
end

output += "\nend\n"

File.write("./src/controllers/helpers/view_path.cr", output)
`crystal tool format`