module Pod
  module PodUtil
    include Config::Mixin
    def muti_config_with_file(path)
      return nil if path.nil?
      path = Pathname.new(path)
      path = Pathname.new(Dir.pwd).join(path) unless path.absolute?
      @path = path.expand_path
      content = File.open(path, 'rb').read
      result = JSON.parse content
      if not result.is_a? Array
        UI.error "#{path} format not support"
        exit -1
      end
      result
    end

    def spec_with_path(path)
      return if path.nil?
      path = Pathname.new(path)
      path = Pathname.new(Dir.pwd).join(path) unless path.absolute?
      return unless path.exist?
      @path = path.expand_path

      if @path.directory?
        raise @path + ': is a directory.'
        return
      end

      unless ['.podspec', '.json'].include? @path.extname
        raise @path + ': is not a podspec.'
        return
      end

      Specification.from_file(@path)
    end

    def spec_with_name(name)
      return if name.nil?

      set = Pod::Config.instance.sources_manager.search(Dependency.new(name))
      return nil if set.nil?

      set.specification.root
    end

    def build_static_sandbox
      Sandbox.new(config.sandbox_root)
    end

    def installation_root sandbox, spec, subspecs, sources,use_frameworks = true,use_modular_headers = true
        podfile = podfile_from_spec(
        @path,
        spec,
        subspecs,
        sources,
        use_frameworks,
        use_modular_headers
      )

      installer = Installer.new(sandbox, podfile)
      installer.repo_update = true
      installer.install!

      unless installer.nil? 
        installer.pods_project.targets.each do |target|
          if target.name == spec.name
            target.build_configurations.each do |configuration|
              configuration.build_settings['CLANG_MODULES_AUTOLINK'] = 'NO'
            end
          end
        end
        installer.pods_project.save
      end
      installer
    end

    def installation_root_muti sandbox, configs, sources, use_frameworks = true, use_modular_headers = true
      podfile = podfile_from_muti_configs(
        configs,
        sources,
        use_frameworks,
        use_modular_headers
      )
      installer = Installer.new(sandbox, podfile)
      installer.repo_update = true
      installer.install!

      specs = configs.map do |cfg|
        cfg["name"]
      end
      unless installer.nil? 
        installer.pods_project.targets.each do |target|
          if specs.include? target.name
            target.build_configurations.each do |configuration|
              configuration.build_settings['CLANG_MODULES_AUTOLINK'] = 'NO'
            end
          end
        end
        installer.pods_project.save
      end
      installer
    end

    def podfile_from_spec path, spec, subspecs, sources, use_frameworks = true, use_modular_headers=true
      options = Hash.new
      options[:podspec] = path.to_s
      options[:subspecs] = spec.subspecs.map do |sub|
        sub.base_name
      end
      options[:subspecs] = subspecs if subspecs
      # 非常奇怪，如果传一个空的数组过去就会出问题！！
      if options[:subspecs].length == 0
        options[:subspecs] = nil
      end
      static_library_enable = config.static_library_enable?
      Pod::Podfile.new do
        sources.each {|s| source s}
        spec.available_platforms.each do |plt|
          target "#{spec.name}-#{plt.name}" do
            platform(plt.name, spec.deployment_target(plt.name))
            pod(spec.name, options)
          end
        end

        install!('cocoapods',:integrate_targets => false,:deterministic_uuids => false)
        if static_library_enable
          use_frameworks! :linkage => :static if use_frameworks
        else
          use_frameworks! if use_frameworks
        end
        use_modular_headers! if use_modular_headers
      end
    end

    def podfile_from_muti_configs configs, sources, use_frameworks = true, use_modular_headers = true
      installation_root = config.installation_root.to_s
      static_library_enable = config.static_library_enable?
      Pod::Podfile.new do 
        sources.each {|s| source s}
        configs.each do |cfg|
          pod_spec_path = installation_root + "/#{cfg["name"]}/#{cfg["name"]}.podspec"
          pod_spec_json_path = pod_spec_path + ".json"
          (Pathname.glob(pod_spec_path) + Pathname.glob(pod_spec_json_path)).each do |real_path|
            spec = Pod::Specification.from_file real_path.to_s
            options = Hash.new 
            options[:podspec] = real_path.to_s
            if cfg["subspecs"]
              options[:subspecs] = cfg["subspecs"]
            else
              options[:subspecs] = spec.subspecs.map do |sub|
                sub.base_name
              end
            end
            # 非常奇怪，如果传一个空的数组过去就会出问题！！
            if options[:subspecs].length == 0
              options[:subspecs] = nil
            end
            spec.available_platforms.each do |plt|
              target "#{spec.name}-#{plt.name}" do 
                puts "#{plt.name} #{spec.name} #{options}"
                platform(plt.name, spec.deployment_target(plt.name))
                pod(spec.name, options)
              end
            end
          end
        end
        install!('cocoapods',
          :integrate_targets => false,
          :deterministic_uuids => false)

          if static_library_enable
            use_frameworks! :linkage => :static if use_frameworks
          else
            use_frameworks! if use_frameworks
          end
          use_modular_headers! if use_modular_headers
      end
    end

    def generic_new_podspec_hash spec
      spec_hash = spec.to_hash
      [
        "source_files",
        "resources",
        "resource_bundles",
        "prefix_header_contents",
        "prefix_header_file",
        "header_dir",
        "header_mappings_dir",
        "script_phase",
        "public_header_files",
        "private_header_files",
        "vendored_frameworks",
        "vendored_libraries",
        "exclude_files",
        "preserve_paths",
        "module_map",
        "subspec"
      ].each do |key|
        spec_hash.delete "#{key}"
      end
      spec_hash
    end
  end
end