class DropboxCLI

# File examples/cli_example.rb, line 20
def initialize
  if APP_KEY == '' or APP_SECRET == ''
    puts "You must set your APP_KEY and APP_SECRET in cli_example.rb!"
    puts "Find this in your apps page at https://www.dropbox.com/developers/"
    exit
  end

  @client = nil
end

# File examples/cli_example.rb, line 186
def clean_up(str)
  return str.gsub(/^\/+/, '') if str
  str
end

# File examples/cli_example.rb, line 51
def command_loop
  puts "Enter a command or 'help' or 'exit'"
  command_line = ''
  while command_line.strip != 'exit'
    begin
      execute_dropbox_command(command_line)
    rescue RuntimeError => e
      puts "Command Line Error! #{e.class}: #{e}"
      puts e.backtrace
    end
    print '> '
    command_line = gets.strip
  end
  puts 'goodbye'
  exit(0)
end

# File examples/cli_example.rb, line 143
def cp(command)
  src = clean_up(command[1])
  dest = clean_up(command[2])
  pp @client.file_copy(src, dest)
end

# File examples/cli_example.rb, line 68
def execute_dropbox_command(cmd_line)
  command = Shellwords.shellwords cmd_line
  method = command.first
  if LOGIN_REQUIRED.include? method
    if @client
      send(method.to_sym, command)
    else
      puts 'must be logged in; type \login\ to get started.'
    end
  elsif ['login', 'help'].include? method
    send(method.to_sym)
  else
    if command.first && !command.first.strip.empty?
      puts 'invalid command. type \help\ to see commands.'
    end
  end
end

# File examples/cli_example.rb, line 109
def get(command)
  dest = command[2]
  if !command[1] || command[1].empty?
    puts "please specify item to get"
  elsif !dest || dest.empty?
    puts "please specify full local path to dest, i.e. the file to write to"
  elsif File.exists?(dest)
    puts "error: File #{dest} already exists."
  else
    src = clean_up(command[1])
    out,metadata = @client.get_file_and_metadata('/' + src)
    puts "Metadata:"
    pp metadata
    open(dest, 'w'){|f| f.puts out }
    puts "wrote file #{dest}."
  end
end

# File examples/cli_example.rb, line 182
def help
  puts "commands are: login #{LOGIN_REQUIRED.join(' ')} help exit"
end

# File examples/cli_example.rb, line 167
def info(command)
  pp @client.account_info
end

# File examples/cli_example.rb, line 30
def login
  if not @client.nil?
    puts "already logged in!"
  else
    web_auth = DropboxOAuth2FlowNoRedirect.new(APP_KEY, APP_SECRET)
    authorize_url = web_auth.start()
    puts "1. Go to: #{authorize_url}"
    puts "2. Click \"Allow\" (you might have to log in first)."
    puts "3. Copy the authorization code."

    print "Enter the authorization code here: "
    STDOUT.flush
    auth_code = STDIN.gets.strip

    access_token, user_id = web_auth.finish(auth_code)

    @client = DropboxClient.new(access_token)
    puts "You are logged in.  Your access token is #{access_token}."
  end
end

# File examples/cli_example.rb, line 86
def logout(command)
  @client = nil
  puts "You are logged out."
end

# File examples/cli_example.rb, line 171
def ls(command)
  command[1] = '/' + clean_up(command[1] || '')
  resp = @client.metadata(command[1])

  if resp['contents'].length > 0
    for item in resp['contents']
      puts item['path']
    end
  end
end

# File examples/cli_example.rb, line 127
def mkdir(command)
  pp @client.file_create_folder(command[1])
end

# File examples/cli_example.rb, line 149
def mv(command)
  src = clean_up(command[1])
  dest = clean_up(command[2])
  pp @client.file_move(src, dest)
end

# File examples/cli_example.rb, line 91
def put(command)
  fname = command[1]

  #If the user didn't specifiy the file name, just use the name of the file on disk
  if command[2]
    new_name = command[2]
  else
    new_name = File.basename(fname)
  end

  if fname && !fname.empty? && File.exists?(fname) && (File.ftype(fname) == 'file') && File.stat(fname).readable?
    #This is where we call the the Dropbox Client
    pp @client.put_file(new_name, open(fname))
  else
    puts "couldn't find the file #{ fname }"
  end
end

# File examples/cli_example.rb, line 155
def rm(command)
  pp @client.file_delete(clean_up(command[1]))
end

# File examples/cli_example.rb, line 159
def search(command)
  resp = @client.search('/',clean_up(command[1]))

  for item in resp
    puts item['path']
  end
end

# File examples/cli_example.rb, line 133
def thumbnail(command)
  dest = command[2]
  command[3] ||= 'small'
  out,metadata = @client.thumbnail_and_metadata(command[1], command[3])
  puts "Metadata:"
  pp metadata
  open(dest, 'w'){|f| f.puts out }
  puts "wrote thumbnail#{dest}."
end