# Licensed to the Apache Software Foundation (ASF) under one or more
# contributor license agreements. See the NOTICE file distributed with this
# work for additional information regarding copyright ownership. The ASF
# licenses this file to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations under
# the License.

require 'lock_jar'
require 'lock_jar/domain/dsl'

#
module Buildr
  attr_reader :global_lockjar_dsl

  class << self
    def project_to_lockfile(project)
      "#{project.name.tr(':', '-')}.lock"
    end
  end

  def lock_jar(&blk)
    @global_lockjar_dsl = ::LockJar::Domain::Dsl.create(&blk)
  end

  namespace 'lock_jar' do
    desc 'Lock dependencies for each project'
    task('lock') do
      projects.each do |project|
        next if project.lockjar_dsl.nil?

        # add buildr repos
        repositories.remote.each do |repo|
          project.lockjar_dsl.repository repo
        end
        ::LockJar.lock(project.lockjar_dsl, lockfile: Buildr.project_to_lockfile(project))
      end
    end
  end

  module LockJar
    #
    module ProjectExtension
      include Extension

      def lock_jar(&blk)
        @lockjar_dsl = ::LockJar::Domain::Dsl.create(&blk)
        @lockjar_dsl.merge(Buildr.global_lockjar_dsl) unless Buildr.global_lockjar_dsl.nil?
      end

      def lock_jars(*args)
        lockfile = Buildr.project_to_lockfile(project)
        opts = {}
        groups = ['default']

        args.each do |arg|
          if arg.is_a?(Hash)
            opts.merge!(arg)
          elsif arg.is_a?(String)
            lockfile = arg
          elsif arg.is_a?(Array)
            groups = arg
          end
        end

        ::LockJar.list(lockfile, groups, opts)
      end

      def lockjar_dsl
        @lockjar_dsl || Buildr.global_lockjar_dsl
      end

      after_define do |project|
        task compile: 'lock_jar:compile'
        task 'test:compile' => 'lock_jar:test:compile'

        task 'eclipse' => 'lock_jar:eclipse'

        namespace 'lock_jar' do
          desc 'Lock dependencies to JarFile'
          task('lock') do
            dsl = project.lockjar_dsl
            if dsl
              # add buildr repos
              repositories.remote do |repo|
                puts repo
                dsl.repository repo
              end
              ::LockJar.lock(dsl, lockfile: "#{project.name}.lock")
            else
              # XXX: output that there were no dependencies to lock
              puts "No lock_jar dependencies to lock for #{project.name}"
            end
          end

          task('compile') do
            if project.lockjar_dsl && !File.exist?(Buildr.project_to_lockfile(project))
              fail(
                "#{project.name}.lock does not exist, run "\
                "#{project.name}:lockjar:lock first"
              )
            end
            jars = ::LockJar.list(Buildr.project_to_lockfile(project), ['default'])
            project.compile.with(jars)
          end

          task('test:compile') do
            if project.lockjar_dsl && !File.exist?(Buildr.project_to_lockfile(project))
              fail(
                "#{Buildr.project_to_lockfile(project)} does not exist, run"\
                " #{project.name}:lockjar:lock first"
              )
            end
            jars = ::LockJar.list(Buildr.project_to_lockfile(project), ['test'])

            project.test.compile.with(jars)
            project.test.with(jars)
          end

          task('eclipse') do
            if project.lockjar_dsl && !File.exist?(Buildr.project_to_lockfile(project))
              fail(
                "#{Buildr.project_to_lockfile(project)} does not exist, run "\
                "#{project.name}:lockjar:lock first"
              )
            end
            jars = ::LockJar.list(Buildr.project_to_lockfile(project), ['default'])
            project.compile.with(jars)

            jars = ::LockJar.list(Buildr.project_to_lockfile(project), ['test'])
            project.test.compile.with(jars)
          end
        end
      end
    end
  end
end

module Buildr
  # Patch Builder::Project to include Buildr::LockJar::ProjectExtension
  class Project
    include Buildr::LockJar::ProjectExtension
  end
end