class Pronto::Github

def access_token
  ENV['GITHUB_ACCESS_TOKEN']
end

def client
  @client ||= Octokit::Client.new(access_token: access_token)
end

def commit_comments(sha)
  @comment_cache["#{sha}"] ||= begin
    client.commit_comments(slug, sha).map do |comment|
      Comment.new(sha, comment.body, comment.path, comment.position)
    end
  end
end

def create_commit_comment(comment)
  client.create_commit_comment(slug, comment.sha, comment.body,
                               comment.path, nil, comment.position)
end

def create_pull_comment(comment)
  client.create_pull_comment(slug, pull_id, comment.body,
                             comment.sha, comment.path, comment.position)
end

def initialize(repo)
  @repo = repo
  @comment_cache = {}
  @pull_id_cache = {}
end

def pull_comments(sha)
  @comment_cache["#{pull_id}/#{sha}"] ||= begin
    client.pull_comments(slug, pull_id).map do |comment|
      Comment.new(sha, comment.body, comment.path, comment.position)
    end
  end
end

def pull_id
  @pull_id ||= begin
    pull_id = ENV['PULL_REQUEST_ID']
    if pull_id
      pull_id.to_i
    elsif @repo.branch
      pull = pull_requests.find { |pr| pr[:head][:ref] == @repo.branch }
      pull[:number].to_i if pull
    end
  end
end

def pull_requests
  @pull_requests ||= client.pull_requests(slug)
end

def slug
  @slug ||= begin
    @repo.remote_urls.map do |url|
      match = /.*github.com(:|\/)(?<slug>.*).git/.match(url)
      match[:slug] if match
    end.compact.first
  end
end