# frozen_string_literal: true


require 'cgi'

module Solargraph
  module Pin
    # @todo Move this stuff. It should be the responsibility of the language server.

    module Conversions
      # @return [Hash]

      def completion_item
        @completion_item ||= {
          label: name,
          kind: completion_item_kind,
          detail: detail,
          data: {
            path: path,
            return_type: return_type.tag,
            location: (location ? location.to_hash : nil),
            deprecated: deprecated?
          }
        }
      end

      # @return [Hash]

      def resolve_completion_item
        if @resolve_completion_item.nil?
          extra = {}
          alldoc = ''
          # alldoc += link_documentation unless link_documentation.nil?

          # alldoc += "\n\n" unless alldoc.empty?

          alldoc += documentation unless documentation.nil?
          extra[:documentation] = alldoc unless alldoc.empty?
          @resolve_completion_item = completion_item.merge(extra)
        end
        @resolve_completion_item
      end

      # @return [Hash]

      def signature_help
        @signature_help ||= {
          label: name + '(' + parameters.map(&:full).join(', ') + ')',
          documentation: documentation
        }
      end

      # @return [String]

      def detail
        # This property is not cached in an instance variable because it can

        # change when pins get proxied.

        detail = String.new
        detail += "(#{parameters.map(&:full).join(', ')}) " unless !is_a?(Pin::BaseMethod) || parameters.empty?
        detail += "=#{probed? ? '~' : (proxied? ? '^' : '>')} #{return_type.to_s}" unless return_type.undefined?
        detail.strip!
        return nil if detail.empty?
        detail
      end

      # Get a markdown-flavored link to a documentation page.

      #

      # @return [String]

      def link_documentation
        @link_documentation ||= generate_link
      end

      def text_documentation
        this_path = path || return_type.tag
        return nil if this_path == 'undefined'
        escape_brackets this_path
      end

      def reset_conversions
        @completion_item = nil
        @resolve_completion_item = nil
        @signature_help = nil
        @detail = nil
        @link_documentation = nil
      end

      private

      # @return [String]

      def generate_link
        this_path = path || return_type.tag
        return nil if this_path == 'undefined'
        return nil if this_path.nil? || this_path == 'undefined'
        "[#{escape_brackets(this_path).gsub('_', '\\\\_')}](solargraph:/document?query=#{CGI.escape(this_path)})"
      end

      # @param text [String]

      # @return [String]

      def escape_brackets text
        # text.gsub(/(\<|\>)/, "\\#{$1}")

        text.gsub("<", '\<').gsub(">", '\>')
      end
    end
  end
end