# frozen_string_literal: true

require 'cocoapods'
require 'xcodeproj'
require 'active_support/core_ext/string/inflections'

module GoNative
  module Plugins
    module IOS
      class BuildFramework
        autoload :FileUtils, 'fileutils'

        extend DSL::Serviceable

        BUILD_TEMPLATE_DIRECTORY_PATH = File.expand_path(File.join(__dir__, '../../../..', 'templates', 'build', 'ios'))

        attr_reader :plugin_name, :archs, :persist_build_dir

        def initialize(archs, persist_build_dir)
          podspec_file = Dir["./*.podspec"].first
          raise Error, "No podspec exists." unless podspec_file

          @plugin_name = File.basename(podspec_file, '.podspec')
          @archs = archs.gsub(',', ' ')
          @persist_build_dir = persist_build_dir
        end

        def call
          setup_dirs
          create_framework_proj
          move_template_files!
          run_pod_install
          chmod_frameworks_script!
          build_framework!
          move_framework_file
        ensure
          FileUtils.cd('..')
          FileUtils.rm_rf('build') unless persist_build_dir
        end

        def setup_dirs
          build_dir = File.join(FileUtils.pwd, 'build')
          FileUtils.mkdir(build_dir)
          FileUtils.cd(build_dir)
        end

        def create_framework_proj
          proj = Xcodeproj::Project.new(FileUtils.pwd)
          target = proj.new_target(:framework,
                                   "#{plugin_name}",
                                   :ios,
                                   deployment_target)
          main_group = proj.new_group(plugin_name, plugin_name)
          add_classes(target, main_group)
          add_frameworks(target, main_group)
          add_headers(target, main_group)
          target.build_configurations.each do |config|
            config.build_settings['GENERATE_INFOPLIST_FILE'] = 'YES'
            config.build_settings['MODULEMAP_FILE'] = "#{plugin_name}.modulemap"
            config.build_settings['PRODUCT_BUNDLE_IDENTIFIER'] = "org.cocoapods.#{plugin_name}"
          end
          proj.save("#{plugin_name}.xcodeproj")
        end

        def add_classes(target, group)
          classes_group = group.new_group('Classes', 'Classes')
          references = Dir.glob("../#{plugin_name}/Classes/**/*.{m,swift}").map do |file|
            classes_group.new_file("../../#{file}")
          end
          target.add_file_references(references)
        end

        def add_frameworks(target, group)
          frameworks_group = group.new_group('Frameworks', 'Frameworks')
          references = Dir.glob("../#{plugin_name}/Frameworks/*.{framework,xcframework}").map do |file|
            frameworks_group.new_file("../../#{file}")
          end
          target.frameworks_build_phase.add_file_references(references) if references.length
        end

        def add_headers(target, group)
          headers_group = group.new_group('Headers', 'Headers')
          references = Dir.glob("../#{plugin_name}/Classes/**/*.h").map { |file| headers_group.new_file("../../#{file}") }
          header_files = target.add_file_references(references)
          header_files << target.headers_build_phase.add_file_reference(main_group.new_file("../#{plugin_name}-umbrella.h"))
          header_files.each do |header|
            header.settings = { 'ATTRIBUTES' => ['Public'] }
          end
        end

        def move_template_files!
          plugin_dependencies = spec.dependencies.map{|d| ["pod '#{d.name}'", "'#{d.requirement}'"].compact.join(', ') } * "\n\t"
          FileUtils.cp_r("#{BUILD_TEMPLATE_DIRECTORY_PATH}/.", '.')
          headers = Dir.glob("../#{plugin_name}/Classes/**/*.h").map{ |f| "#import \"#{File.basename(f)}\"" } * "\n"
          Utils::TemplateInflator.new(plugin_name: plugin_name,
                                      plugin_dependencies: plugin_dependencies,
                                      plugin_headers: headers,
                                      archs: archs,
                                      deployment_target: deployment_target
          ).call
        end

        def run_pod_install
          system 'pod install'
        end

        def chmod_frameworks_script!
          FileUtils.chmod 0755, 'create-framework.sh'
        end

        def build_framework!
          Utils::UI.info 'Building framework'
          return if system('sh create-framework.sh >/dev/null 2>/dev/null')
  
          raise Error, "Error building framework. Please run the create-framework file manually to fix any errors"
        end
        
        def move_framework_file
          FileUtils.rm_rf('../XCFramework')
          FileUtils.mv("XCFramework", '..', force: true)
        end
        
        def deployment_target
          spec.deployment_target('ios') || '11.0'
        end
        
        def spec
          @spec ||= Pod::Specification.from_file("../#{plugin_name}.podspec")
        end
      end
    end
  end
end