module Riffer::Agent::Serializer

# File lib/riffer/agent/serializer.rb, line 37
def from_h(hash, context: nil, session: nil, tool_resolver: DEFAULT_TOOL_RESOLVER, tool_runtime: nil)
  # One arm per supported version keeps older hashes decodable after a breaking change.
  case hash[:schema_version]
  when SCHEMA_VERSION
    decode_v1(hash, context: context, session: session, tool_resolver: tool_resolver, tool_runtime: tool_runtime)
  else
    raise VersionError,
          "Unsupported schema_version: #{hash[:schema_version].inspect} (this Riffer supports #{SCHEMA_VERSION})"
  end
end

# File lib/riffer/agent/serializer.rb, line 56
def from_json(json, context: nil, session: nil, tool_resolver: DEFAULT_TOOL_RESOLVER, tool_runtime: nil)
  from_h(
    JSON.parse(json, symbolize_names: true),
    context: context,
    session: session,
    tool_resolver: tool_resolver,
    tool_runtime: tool_runtime,
  )
end

# File lib/riffer/agent/serializer.rb, line 18
def to_h(agent:)
  # Already resolved against the agent's context, so the hash carries plain data, never Procs.
  config = agent.config
  {
    schema_version: SCHEMA_VERSION,
    riffer_version: Riffer::VERSION,
    identifier: config.identifier,
    model: "#{agent.provider_name}/#{agent.model_name}",
    instructions: agent.instruction_message&.content,
    model_options: config.model_options,
    max_steps: encode_max_steps(config.max_steps),
    structured_output: config.structured_output&.to_json_schema(strict: false),
    tools: agent.tools.map { |tool_class| tool_descriptor(tool_class) },
  }
end

# File lib/riffer/agent/serializer.rb, line 50
def to_json(agent:)
  JSON.generate(to_h(agent: agent))
end