require 'cocoapods-bb-PodAssistant/config/source_manager'
require 'cocoapods-bb-PodAssistant/config/cache_path'
require 'cocoapods-bb-PodAssistant/helpers'

module Pod

    # class StableOptions
    #   # define business specs,defalut is stable_specs
    #   option :business_specs, "stable_specs"

    #   # define custom lockSpecs tag
    #   option :tag, ""

    #   # define custom lockSpecs branch
    #   option :branch, ""
    # end

    class Command
      class Stable < Command
        require 'fileutils'
        require 'cocoapods/executable.rb'
        extend Executable
        executable :git

        self.summary = '拉取稳定lock配置'
        self.description = <<-DESC
          拉取稳定lock配置插件。利用版本比对进行更新配置实现对组件版本控制管理。
        DESC

        self.arguments = [
            CLAide::Argument.new('Podfile', false)
        ]
        def self.options
          [
            ['--init', '初始化项目yml配置，根据当前项目Podfile.lock生成'],
            ['--sync', '同步远端yml配置，更新项目yml配置'],
            ['--install', '命令同执行`pod install操作`'],
            ['--update', '命令同执行`pod update操作`'],
            ['--update-pod', '命令同执行`pod update <组件>操作`,更新yml配置组件版本信息，多个组件使用`,`或者`空格`隔开,注意⚠️  使用`空格`需要使用双引号'],
          ].concat(super)
        end
        
        def initialize(argv)
          @names = argv.arguments! unless argv.arguments.empty?
          @help = argv.flag?('help')
          @init = argv.flag?('init')
          @sync = argv.flag?('sync')
          # install操作
          @install = argv.flag?('install')
          @update = argv.flag?('update')
          # update组件数据支持多个使用`,`或者`空格`隔开
          update_pods = argv.option('update-pod','')
          if !update_pods.empty?
            if update_pods.include?(' ')
              @update_pods = update_pods.split(' ') unless update_pods.nil?
            else update_pods.include?(',')
              @update_pods = update_pods.split(',') unless update_pods.nil?
            end
          end
          super
        end
        def validate!
          super
          banner! if @help
        end

        #help load podfile option
        def stable!(source, options = {})
          @ll_stable_source = source
          if options.has_key?(:specs) 
            @businessSpec = options[:specs]
            puts "当前业务使用源=>#{@businessSpec}"
          end
          @ll_stable_tag = options[:tag] if options.has_key?(:tag) 
          @ll_stable_branch = options[:branch] if options.has_key?(:branch)
          @cache = BB::Cache.new()
          configGitPath(@cache.cachePath)
        end

        ######################################## Main ########################################
        
        def run
          # begin
            source_manager = BB::SourceManager.new(@businessSpec)
            if @init
              puts "[PodAssistant] 开始配置生成当前项目yml文件".yellow
              # 生成本地yml配置
              source_manager.generate_localStable
              puts "[PodAssistant] `pod stable --init` complete!".green
            elsif @install
              puts "[PodAssistant] 执行 $ pod install".yellow
              system "pod install"
              puts "[PodAssistant] `pod stable --install` complete!".green
            elsif @update
              puts "[PodAssistant] 执行 $ pod update".yellow
              system "pod update"
              puts "[PodAssistant] `pod stable --update` complete!".green
            elsif @update_pods
              # 更新单个组件
              puts "更新pod组件#{@update_pods} count:#{@update_pods.count}".yellow
              source_manager.update_podmodules(@update_pods)
              podnames = @update_pods.join(" ")
              puts "[PodAssistant] 执行 $ pod update #{podnames}".yellow
              system "pod update #{podnames}"
              source_manager.update_local_stable_from_podmodules(@update_pods)
              podnames = @update_pods.join(",")
              puts "[PodAssistant] `pod stable --update-pod=#{podnames}` complete!".green
            elsif @sync
              puts "开始合并远端lock数据".yellow
              ll_load_stable
              #2、clone origin lock spec to cache dir 
              ll_cloneStable
              #3、fetch newest code
              ll_fetch_stale_git
              # 数据合并
              source_manager.merge_stable_data
              puts "[PodAssistant] `pod stable` complete!".green
            else
              puts "[PodAssistant] `pod stable` 帮助文档请查看👇".yellow
              banner! 
            end
          # rescue => exception
          #   puts "[pod stable] error(已捕获): #{exception}".red
          # end
          
        end

        private
        ######################################## API ########################################
        def ll_load_stable
          unless File.exist?(File.join(Pathname.pwd, "Podfile"))
            err_msg = "- Error: #{File.join(Pathname.pwd, "Podfile")} is not exit"
            Pod::UI.puts "#{err_msg}".send(:red)
            exit -9001
          end

          #获取podfile 内容
          #1、删除所有注释行，避免干扰
          #2、正则匹配，筛选出stable 方法
          #3、执行stable 方法，获取配置
          podfileContent = File.read(File.join(Pathname.pwd, "Podfile"))
          podfileContent_vaild = podfileContent.lines.reject { |line| line.strip.start_with?("#") }.join
          stableCommand = podfileContent_vaild.match(/^\s*stable!\s*'([^']+)'(?:,\s*(\w+):\s*'([^']+)')*/m)
          unless stableCommand
            err_msg = "- Error: not stable define in the podfile! you can define like【stable! 'https://git.babybus.co/babybus/ios/Specs/stable-specs.git', specs:'global_stable_specs'】in podfile"
            Pod::UI.puts "#{err_msg}".send(:red)
            exit -9002
          end
          eval(stableCommand.to_s)
        end
        def ll_cloneStable
          cachePath = @cache.cachePath
          unless Dir.exist?(File.join(cachePath))
            clonePath = File.dirname(cachePath)
            FileUtils.mkdir_p clonePath
            git_clone(@stable_source,clonePath)
          end
        end

        def ll_fetch_stale_git
          git_reset
          git_fetch
          git_checkout_and_pull(@stable_source, @stable_branch, @stable_tag)
        end

      end
    end
  end