module Objctify

# File lib/objctify/translator_runner.rb, line 10
def self.collect_files(java_source_path)
  files_to_translate = ''
  Dir.glob(java_source_path + '/**/*.java') do |item|
    files_to_translate = files_to_translate + item + ' '
  end
  files_to_translate
end

# File lib/objctify/translator_runner.rb, line 29
def self.compose_j2objc_call(java_sources, j2objc_home, prefix_file_path, result_path, extra_cli_args)
  j2objc_call = "#{j2objc_home}/j2objc -source 8 --swift-friendly -l #{extra_cli_args} -d #{result_path} -classpath #{j2objc_home}/lib/jsr305-3.0.0.jar -sourcepath #{java_sources}"

  unless prefix_file_path.nil? || prefix_file_path == ''
    j2objc_call += " --prefixes #{prefix_file_path}"
  end

  j2objc_call
end

# File lib/objctify/fix_imports.rb, line 10
def self.fix_imports(framework_name, prefix_file_path)
  prefixes = J2ObjCPrefixes.new(prefix_file_path)

  header_map = {}
  Dir.chdir(framework_name) do
    Pathname('.').find do |path|
      dir, base = path.split

      next unless path.file?

      prefix = prefixes.prefix_for(path.dirname.to_s)
      path.rename(dir.to_s + '/' + prefix + base.to_s)
      header_map[path.to_s.sub('./', '')] = prefix + base.to_s
    end
  end

  Dir.chdir(framework_name) do
    Pathname('.').find do |path|
      next unless path.file?

      import_reg_exp = %r{(#[a-zA-Z]+\s+"([a-zA-Z_0-9/]+.[hm]{1})")}

      text = File.read(path)
      text.scan(import_reg_exp).each do |import|

        if (mapped_import = header_map[import[1]]) && !mapped_import.nil?
          text = text.gsub(import[1], mapped_import)
        end
      end

      File.open(path, 'w') do |f|
        f.write(text)
      end
    end
  end
end

# File lib/objctify/generate_project.rb, line 12
  def self.generate_project(framework_name, j2objc_home)
    project = Xcodeproj::Project.new("#{framework_name}.xcodeproj")
    target = project.new_target(:framework, framework_name, :ios)

    source_build_phase = target.source_build_phase
    headers_build_phase = target.headers_build_phase

    #add files
    Pathname(framework_name).find do |path|
      dir, base = path.split
      if path.directory?

        if path.to_s == framework_name
          project.new_group base.to_s, base
        else
          group_to_append_to = project[dir.to_s]
          group_to_append_to.new_group base.to_s, base
        end

      elsif path.file?

        group = project[dir.to_s]
        new_ref = group.new_reference base

        if new_ref.last_known_file_type == 'sourcecode.c.h'
          build_file = headers_build_phase.add_file_reference new_ref
          build_file.settings = { ATTRIBUTES: ['', 'Public'] }
        elsif new_ref.last_known_file_type == 'sourcecode.c.objc'
          source_build_phase.add_file_reference new_ref
        end

      end
    end

    header_file_path = Pathname("#{framework_name}/#{framework_name}.h")

    File.open(header_file_path, 'w') do |header_file|
      header_template = "//
//  #{framework_name}.h
//  #{framework_name}
//
//

#import <UIKit/UIKit.h>

//! Project version number for #{framework_name}.
FOUNDATION_EXPORT double #{framework_name}VersionNumber;

//! Project version string for #{framework_name}.
FOUNDATION_EXPORT const unsigned char #{framework_name}VersionString[];

"

      header_file.write(header_template)
      header_file.write(headers_build_phase.files_references.map(&:path).map { |header_file_name| "#include <#{framework_name}/" + header_file_name + '>' } * "\n")
    end

    dir, base = header_file_path.split

    header_file_ref = project[dir.to_s].new_reference base
    header_build_file = headers_build_phase.add_file_reference header_file_ref
    header_build_file.settings = { ATTRIBUTES: ['', 'Public'] }

    project.targets.each do |target|
      target.add_system_library_tbd(%w[z iconv])
      target.add_system_framework('UIKit')

      path = File.expand_path("#{j2objc_home}/frameworks/JRE.framework")
      unless (ref = project.frameworks_group.find_file_by_path(path))
        ref = project.frameworks_group.new_file(path, :absolute)
      end
      target.frameworks_build_phase.add_file_reference(ref, true)

      target.build_configurations.each do |config|
        config.build_settings['CLANG_ENABLE_OBJC_ARC'] = false
        config.build_settings['FRAMEWORK_SEARCH_PATHS'] = "#{j2objc_home}/frameworks"
        config.build_settings['HEADER_SEARCH_PATHS'] = "#{j2objc_home}/frameworks/JRE.framework/Headers"

        # Workaround
        config.build_settings['SUPPORTS_MACCATALYST'] = false
      end
    end

    project.save
  end

# File lib/objctify/translator_runner.rb, line 18
def self.translate_files(java_sources, prefix_file_path, j2objc_home, result_path, extra_cli_args)
  files_to_translate = collect_files(java_sources)

  raise Objctify::Informative, "No files to translate, check 'java_sources' parameter in Objctifile" if files_to_translate.empty?

  j2objc_call = compose_j2objc_call(java_sources, j2objc_home, prefix_file_path, result_path, extra_cli_args) + ' ' + files_to_translate
  call = system(j2objc_call)

  raise Objctify::Informative, "J2Objc call is unsuccessful: #{j2objc_call}" unless call
end