Class: Textus::Handlers::Write::MoveKey

Inherits:
Object
  • Object
show all
Defined in:
lib/textus/handlers/write/move_key.rb

Instance Method Summary collapse

Constructor Details

#initialize(container:, manifest:) ⇒ MoveKey

Returns a new instance of MoveKey.



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# File 'lib/textus/handlers/write/move_key.rb', line 5

def initialize(container:, manifest:)
  @container = container
  @manifest = manifest
end

Instance Method Details

#call(command, call) ⇒ Object 



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# File 'lib/textus/handlers/write/move_key.rb', line 10

def call(command, call)
  Textus::Manifest::Data.validate_key!(command.old_key)
  Textus::Manifest::Data.validate_key!(command.new_key)

  return Value::Result.failure(:usage_error, "mv: old and new keys are identical") if command.old_key == command.new_key

  old_res = @manifest.resolver.resolve(command.old_key)
  new_res = @manifest.resolver.resolve(command.new_key)

  reader = Store::Entry::Reader.from(container: @container)

  unless reader.exists?(command.old_key)
    return Value::Result.failure(:not_found,
                                 "source key '#{command.old_key}' not found")
  end

  zone_check = validate_zone(old_res.entry, new_res.entry)
  return zone_check if zone_check

  if reader.exists?(command.new_key)
    return Value::Result.failure(:usage_error, "mv: target '#{command.new_key}' already exists at #{new_res.path}")
  end

  pre_env = reader.read(command.old_key)
  writer = Store::Entry::Writer.from(container: @container, call: call)
  unless pre_env.uid
    writer.put(
      command.old_key, mentry: old_res.entry,
                       payload: Textus::Value::Payload.new(meta: pre_env.meta, body: pre_env.body, content: pre_env.content)
    )
  end

  if command.dry_run
    return Value::Result.success({
                                   "protocol" => Textus::PROTOCOL, "ok" => true, "dry_run" => true,
                                   "from_key" => command.old_key, "to_key" => command.new_key,
                                   "from_path" => old_res.path, "to_path" => new_res.path,
                                   "uid" => pre_env.uid
                                 })
  end

  envelope = writer.move(
    from_key: command.old_key, to_key: command.new_key,
    new_mentry: new_res.entry
  )

  Value::Result.success({
                          "protocol" => Textus::PROTOCOL, "ok" => true,
                          "from_key" => command.old_key, "to_key" => command.new_key,
                          "from_path" => old_res.path, "to_path" => new_res.path,
                          "uid" => envelope.uid, "envelope" => envelope.to_h_for_wire
                        })
end