ddd-ruby/rdm

require 'fileutils'

module Rdm
  module Packages
    class CompilerService
      class << self
        def compile(compile_path:, project_path:, package_name:)
          Rdm::Packages::CompilerService.new(
            compile_path: compile_path,
            project_path: project_path,
            package_name: package_name
          ).compile
        end
      end

      def initialize(compile_path:, project_path:, package_name:)
        @compile_path = compile_path.gsub(/:package_name/, package_name)
        @project_path = project_path
        @package_name = package_name
      end

      def compile
        FileUtils.rm_rf(@compile_path) if Dir.exists?(@compile_path)
        FileUtils.mkdir_p(@compile_path)

        dependent_packages = Rdm::Handlers::DependenciesHandler.show_packages(
          package_name: @package_name, 
          project_path: @project_path
        )

        dependent_packages.each do |pkg|
          rel_path = Pathname.new(pkg.path).relative_path_from(Pathname.new(@project_path))
          new_path = File.dirname(File.join(@compile_path, rel_path))
          
          FileUtils.mkdir_p(new_path)
          FileUtils.cp_r(pkg.path, new_path)
        end

        
        source_rdm_path = File.join(@project_path, Rdm::SOURCE_FILENAME)
        dest_rdm_path   = File.join(@compile_path, Rdm::SOURCE_FILENAME)
        package_definition_regex = /package\s+['"]([\w\/]+)['"]/i

        File.open(dest_rdm_path, "w") do |out_file|
          File.foreach(source_rdm_path) do |line|
            package_line = package_definition_regex.match(line)
            if package_line.nil?
              out_file.puts line
            else
              dependent_package_definition = dependent_packages.detect do |pkg|
                package_line[1] == Pathname.new(pkg.path).relative_path_from(Pathname.new(@project_path)).to_s
              end

              out_file.puts line if dependent_package_definition.present?
            end
          end
        end

        FileUtils.cp_r(File.join(@project_path, 'configs'), File.join(@compile_path, 'configs'))
        FileUtils.cp_r(File.join(@project_path, Rdm.settings.env_files_dir), File.join(@compile_path, Rdm.settings.env_files_dir))

        Rdm.settings.compile_ignore_files.each do |file|
          Dir["#{@compile_path}/**/#{file}"].each do |file_to_remove|
            FileUtils.rm_rf(file_to_remove)
          end
        end

        Rdm.settings.compile_add_files.each do |file|
          FileUtils.cp(File.join(@project_path, file), File.join(@compile_path, file))
        end

        return dependent_packages.map(&:name)
      end
    end
  end
end