module Pod
    class Sandbox
        attr_accessor :source_lockfile
    end
end

module Jxedt
    class PreInstall
        include ObjectSpace

        def initialize(installer_context)
            @installer_context = installer_context
        end

        def run
            # check binary switch
            return unless Jxedt.config.binary_switch?

            unless Gem::Version.new(Pod::VERSION) >= Gem::Version.new('1.10.0')
                raise STDERR.puts "[!] cocoapods-jxedt binary plugin should use cocoapods version greater than '1.10.0'`".red
            end

            require_relative '../helper/prebuild_sandbox'
            require_relative '../helper/prebuild_installer'

            # 如果是Pod::JxedtPrebuildSandbox类则直接返回
            return if @installer_context.sandbox.is_a?(Pod::JxedtPrebuildSandbox)

            # 获取原始的installer对象，必须先获取对象
            original_installer = ObjectSpace.each_object(Pod::Installer).first
            prebuild_sandbox = Pod::JxedtPrebuildSandbox.from_standard_sandbox(@installer_context.sandbox)
            source_installer = Pod::JxedtPrebuildInstaller.new(prebuild_sandbox, @installer_context.podfile, @installer_context.lockfile)
            # 设置原始的installer携带的参数
            source_installer.update = original_installer.update
            source_installer.repo_update =  original_installer.repo_update
            # 执行install
            source_installer.install!

            # 保存首次`pod install`的lockfile结果，用来验证二进制文件和后面做结果校验
            @installer_context.sandbox.source_lockfile = prebuild_sandbox.source_lockfile = source_installer.lockfile

            require_relative '../helper/podfile_options'
            require_relative '../prebuild'

            # fetch cache and sync
            if Jxedt.config.cache_repo_enabled? && Jxedt.config.auto_fetch?
                log_section "🚗  Fetch git cache"
                # 统计需要prebuild的targets
                prebuild_pods =  Jxedt::Prebuild.new(source_installer).targets_to_prebuild.map(&:pod_name)
                binary_hash = prebuild_pods.reduce({}) do |hash, name|
                    checksum = prebuild_sandbox.source_lockfile.spec_checksums_hash_key(name)
                    hash.update(name => checksum)
                end

                require 'cocoapods-jxedt/git_helper/cache_fetcher'
                binary_dir = @installer_context.sandbox.standard_sandbox_root + Jxedt.config.binary_dir
                Jxedt::CacheFetcher.sync(binary_hash, binary_dir)
            end  

            # prebuild_job
            if Jxedt.config.prebuild_job?
                log_section "🚀  Prebuild frameworks"
                build_targets = Jxedt::Prebuild.new(source_installer).build 

                # cache push
                if Jxedt.config.cache_repo_enabled? && Jxedt.config.auto_push? && build_targets && build_targets.size > 0
                    log_section "🚄  Push git cache"
                    require 'cocoapods-jxedt/git_helper/cache_pucher'
                    output_dir = prebuild_sandbox.standard_sandbox_root + Jxedt.config.binary_dir
                    Jxedt::CachePucher.push(output_dir, build_targets, false)
                end
            end
            source_installer.generate_pods_index_project!
            prebuild_sandbox.clean_source_project!

            log_section "🤖  Resume pod installation"
            require_relative '../targets/pod_target'
            require_relative '../Intergation'
        end

        def log_section(message)
            Pod::UI.puts "-----------------------------------------"
            Pod::UI.puts message
            Pod::UI.puts "-----------------------------------------"
        end
    end
end