# frozen_string_literal: true

require 'json'
require 'xcodeproj'

module GoNative
  module Plugins
    module IOS
      class EmbedExtensions
        extend DSL::Serviceable
        autoload :FileUtils, 'fileutils'

        attr_reader :extensions

        def call
          prepare_extensions
          embed_in_project
          modify_podfile
        end

        def prepare_extensions
          extension_paths = `find ./Pods -iname Extensions -not -empty -type d`.split("\n")
          extension_paths
            .map { |path| Pathname(path).children.select(&:directory?) }
            .flatten
            .each { |path| FileUtils.cp_r(path, '.') }
          @extensions = extension_paths
                        .map { |path| Pathname(path).children.select { |p| p.extname == '.json' } }
                        .flatten
                        .map { |p| JSON.parse(File.read(p)) }
        end

        def embed_in_project
          proj = Xcodeproj::Project.open('MedianIOS.xcodeproj')
          app_target = proj.native_targets.first
          extensions.each do |extension|
            extension_target = proj.new_target(:app_extension,
                                               extension['name'],
                                               :ios,
                                               '13.0')
            extension_group = proj.new_group(extension['name'], extension['name'])

            extension['headers'].each { |path| extension_group.new_file(path) }
            extension_target.add_file_references(extension['source_files'].map do |path|
                                                   extension_group.new_file(path)
                                                 end)
            extension_target.add_resources(extension['resources'].map { |path| extension_group.new_file(path) })
            extension_target.add_system_frameworks(extension['system_frameworks'])
            extension_group.new_file(extension['info'])
            extension_group.new_file(extension['entitlements']) if extension['entitlements']
            extension_target.build_configurations.each do |config|
              config.build_settings['PRODUCT_NAME'] = '$(TARGET_NAME)'
              config.build_settings['INFOPLIST_FILE'] = "#{extension["name"]}/#{extension["info"]}"
              if extension['entitlements']
                config.build_settings['CODE_SIGN_ENTITLEMENTS'] =
                  "#{extension["name"]}/#{extension["entitlements"]}"
              end
            end
            app_target.add_dependency(extension_target)
            extension_file = proj.files.find { |f| f.path == "#{extension["name"]}.appex" }
            embed_phase = app_target.build_phases.find do |phase|
              phase.class.method_defined?(:name) && phase.name == 'Embed Foundation Extensions'
            end
            embed_phase.add_file_reference(extension_file, true)
            app_config = proj.files.find { |f| f.path == 'appConfig.json' }
            extension_target.resources_build_phase.add_file_reference(app_config, true)
          end

          proj.save
        end

        def modify_podfile
          extensions.each do |extension|
            open('Podfile', 'a') do |f|
              f.puts "target '#{extension["name"]}' do"
              f.puts "\tuse_frameworks!"
              extension['dependencies'].each do |dep|
                f.puts "\tpod '#{dep["name"]}', '#{dep["requirement"]}'"
              end
              f.puts 'end'
            end
          end
        end
      end
    end
  end
end