class Github

# File lib/github.rb, line 7
def initialize(repo, current_branch = 'master')
  @repo = repo
  @current_branch_name = current_branch
  @branch = BranchCache.new(repo)
end

# File lib/github.rb, line 23
def add(path)
  added_files << path
end

# File lib/github.rb, line 13
def branch(name)
  current_branch = @branch.read(@current_branch_name)
  @branch.create(name, current_branch[:object][:sha])
end

# File lib/github.rb, line 18
def checkout(branch)
  @current_branch_name = branch
  @branch.read(@current_branch_name)
end

# File lib/github.rb, line 27
def commit(message)
  current_branch = @branch.read(@current_branch_name)

  tree = create_tree(current_branch[:object][:sha])
  new_commit = client.create_commit(@repo, message, tree[:sha], current_branch[:object][:sha])

  @branch.update(@current_branch_name, new_commit[:sha])
  added_files.clear

  new_commit
end

# File lib/github.rb, line 39
def pull_request(base, title, body)
  client.create_pull_request(
    @repo,
    base,
    @current_branch_name,
    title,
    body
  )
end

# File lib/github.rb, line 57
def added_files
  []
end

# File lib/github.rb, line 62
def client
  ::Octokit::Client.new
end

# File lib/github.rb, line 51
def create_tree(branch_sha)
  tree_helper = TreeHelper.new(@repo, branch_sha)
  added_files.each { |path| tree_helper.add(path) }
  tree_helper.create_tree
end