require 'cocoapods-bb-PodAssistant/config/stable_source'

module BB
    class StableEnv  
        def initialize(verify_stable_env=true, isMatrix=false)
            @cache = BB::Cache.new(nil, verify_stable_env)
            @isMatrix = isMatrix
            configGitPath(@cache.cachePath)
            if verify_stable_env
              # 自动加载stable环境
              loadStaleEnv
              if verify_stable_env_exists == false
                puts "[PodAssistant] ❌工程没有配置stable环境".red
              end
            end
            fetch_stale_git # 自动拉取远端git仓库数据
        end

        # stable 环境,执行pod stable
        def loadStaleEnv
          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
            puts "- Error: not stable define in the podfile! you can define to podfile:".red
            puts "stable! 'https://git.babybus.co/babybus/ios/Specs/stable-specs.git', specs:'<业务线stbale名称-可选>', tag:'<标签-可选>', branch:'<分支-可选>'".green
            exit -9002
          end
          eval(stableCommand.to_s)
        end

        # 拉取stable仓库代码  hook开发环境,执行pod install/update
        def system_clone_stable_git
            cachePath = @cache.cachePath
            puts "fetch stable git=>#{cachePath}"
            if !Dir.exist?(File.join(cachePath))
              puts "git clone=>#{stable_source}"
              clonePath = File.dirname(cachePath)
              FileUtils.mkdir_p clonePath
              system "git clone #{stable_source} #{cachePath}"
            end
            if verify_branch_exists
              if stable_tag || stable_branch
                if stable_branch
                  system "cd #{cachePath}; git pull --all; git checkout #{stable_branch}; git reset --hard origin/#{stable_branch}"
                end
                if stable_tag
                  system "cd #{cachePath}; git pull --all; git checkout #{stable_tag};"
                end
              else
                result =`git symbolic-ref refs/remotes/origin/HEAD`
                protechBranch = result.split("/").last.strip || default_branch
                system "cd #{cachePath}; git pull --all; git checkout #{protechBranch}; git reset --hard origin/#{protechBranch}"
              end
            else
              puts "❌ stable配置无效分支信息source:#{stable_source} branch:#{stable_branch}".red
              exit
            end
        end
        def fetch_stale_git
          system_clone_stable_git
        end

        # ========podfile 约定函数规则，切勿修改
        #help load podfile option
        def stable!(source, options = {})
          @stable_source = source
          if options.has_key?(:specs) 
            @businessSpec = options[:specs]
          end
          @stable_tag = options[:tag] if options.has_key?(:tag) 
          @stable_branch = options[:branch] if options.has_key?(:branch)
          puts "###stable env => [stable公共源]:#{source} [业务线源名称]:#{@businessSpec} branch:#{@stable_branch} tag:#{@stable_tag}".green
        end

        def stable_source
          if @stable_source.nil?
            @stable_source = StableSource.stable_default_source
          end
          return @stable_source
        end
        def default_branch
          return "main"
        end
        def stable_branch
          if @stable_branch.nil?
            return default_branch
          end
          return @stable_branch
        end
        def stable_tag
          return @stable_tag
        end
        def business_stable
          if @businessSpec.nil? && @isMatrix
            return default_matrix_business_stable
          end
          return @businessSpec
        end
        def default_matrix_business_stable
          return "global_stable_specs"
        end
        # 验证stable环境是否存在
        def verify_stable_env_exists
          return @stable_source.empty? ? false : true
        end
        # tag是否存在
        def verify_tag_exists
          tag = stable_tag
          if tag
            cachePath = @cache.cachePath
            # result = system "cd #{cachePath}; git tag"
            result = `cd #{cachePath}; git tag`
            puts "verify_tag_exists:#{result}".red
            return result.split("\n").include?(tag)
          end
          return false
        end
        # 分支是否存在
        def verify_branch_exists
          branch = stable_branch
          if branch
            cachePath = @cache.cachePath
            # result = system "cd #{cachePath}; git tag"
            branchs = `cd #{cachePath}; git branch -a`
            if branchs
              branchs = branchs.split("\n")
              return branchs.include?(branch) || branchs.include?('  remotes/origin/' + branch) || branchs.include?('remotes/origin/' + branch)
            end
            puts "verify_branch_exists:#{branchs}".red
          end
          return false
        end
        def cache_path
          return @cache.cachePath
        end
    end
end