# Rake tasks to assist in coordinating operations with separately
# maintained projects.

require "fileutils"
require "yaml"
require "git"

CONTRIB_DIR = File.expand_path(File.join(__dir__, "..", "contrib")).freeze
RESOURCE_DOC_DIR = File.expand_path(File.join(__dir__, "..", "docs", "resources")).freeze

namespace :contrib do # rubocop: disable Metrics/BlockLength
  config = nil

  task :read_config do
    config = YAML.load(File.read(File.join(CONTRIB_DIR, "contrib.yaml")))
  end

  task fetch_resource_packs: [:read_config] do
    puts "Fetching contrib resource packs..."
    config["resource_packs"].each do |name, info|
      clone_path = File.join(CONTRIB_DIR, name)
      git = nil
      verb = nil
      if File.exist?(clone_path)
        git = Git.open(clone_path)
        git.fetch
        verb = "fetched"
      else
        git = Git.clone(info["git_repo"], name, path: CONTRIB_DIR)
        verb = "cloned"
      end

      sha = git.log[0].sha[0..6]
      branch = git.current_branch
      puts "  #{name}: #{verb}, now at #{sha}" + (branch ? " (#{branch})" : "")
    end
  end

  desc "Copy docs from resource packs into the core for doc building"
  task copy_docs: [:fetch_resource_packs] do
    config["resource_packs"].each do |name, info|
      doc_sub_dir = info["doc_sub_dir"] || "docs/resources"
      doc_src_path = File.join(CONTRIB_DIR, name, doc_sub_dir)
      dest_path = RESOURCE_DOC_DIR
      Dir.chdir(doc_src_path) do
        Dir["*.md*"].sort.each do |file|
          # TODO: check file for Availability section in markdown?
          FileUtils.cp(file, dest_path)
        end
      end
    end
  end

  desc "Cleanup docs from resource packs in core"
  task cleanup_docs: [:read_config] do
    # TODO: I don't see the point of this cleanup phase
    config["resource_packs"].each do |name, info|
      doc_sub_dir = info["doc_sub_dir"] || "docs/resources"
      doc_src_path = File.join(CONTRIB_DIR, name, doc_sub_dir)
      dest_path = RESOURCE_DOC_DIR
      Dir.chdir(doc_src_path) do
        Dir["*.md*"].sort.each do |file|
          cruft = File.join(dest_path, file)
          FileUtils.rm_f(cruft)
        end
      end
    end
  end
end
# rubocop enable: Metrics/BlockLength