# -*- ruby -*-
require 'rake/extensiontask'
require 'rspec/core/rake_task'
require 'rubocop/rake_task'
require 'bundler/gem_tasks'

# Add rubocop style checking tasks
RuboCop::RakeTask.new

# Add the extension compiler task
Rake::ExtensionTask.new 'grpc' do |ext|
  ext.lib_dir = File.join('lib', 'grpc')
end

# Define the test suites
SPEC_SUITES = [
  { id: :wrapper, title: 'wrapper layer', files: %w(spec/*.rb) },
  { id: :idiomatic, title: 'idiomatic layer', dir: %w(spec/generic),
    tags: ['~bidi', '~server'] },
  { id: :bidi, title: 'bidi tests', dir: %w(spec/generic),
    tag: 'bidi' },
  { id: :server, title: 'rpc server thread tests', dir: %w(spec/generic),
    tag: 'server' },
  { id: :pb, title: 'protobuf service tests', dir: %w(spec/pb) }
]
namespace :suite do
  SPEC_SUITES.each do |suite|
    desc "Run all specs in the #{suite[:title]} spec suite"
    RSpec::Core::RakeTask.new(suite[:id]) do |t|
      ENV['COVERAGE_NAME'] = suite[:id].to_s
      spec_files = []
      suite[:files].each { |f| spec_files += Dir[f] } if suite[:files]

      if suite[:dir]
        suite[:dir].each { |f| spec_files += Dir["#{f}/**/*_spec.rb"] }
      end
      helper = 'spec/spec_helper.rb'
      spec_files << helper unless spec_files.include?(helper)

      t.pattern = spec_files
      t.rspec_opts = "--tag #{suite[:tag]}" if suite[:tag]
      if suite[:tags]
        t.rspec_opts = suite[:tags].map { |x| "--tag #{x}" }.join(' ')
      end
    end
  end
end

# Define dependencies between the suites.
task 'suite:wrapper' => [:compile, :rubocop]
task 'suite:idiomatic' => 'suite:wrapper'
task 'suite:bidi' => 'suite:wrapper'
task 'suite:server' => 'suite:wrapper'
task 'suite:pb' => 'suite:server'

desc 'Compiles the gRPC extension then runs all the tests'
task all: ['suite:idiomatic', 'suite:bidi', 'suite:pb', 'suite:server']
task default: :all