class Riffer::Messages::Base

# File lib/riffer/messages/base.rb, line 12
def self.from_hash(msg)
  return msg if msg.is_a?(Riffer::Messages::Base)

  unless msg.is_a?(Hash)
    raise Riffer::ArgumentError, "Message must be a Hash or Message object, got #{msg.class}"
  end

  role = msg[:role]
  content = msg[:content]

  if role.nil? || role.empty?
    raise Riffer::ArgumentError, "Message hash must include a 'role' key"
  end

  id = msg[:id]

  case role.to_sym
  when :user
    files = (msg[:files] || []).map { |f| Riffer::Messages::FilePart.from_hash(f) }
    Riffer::Messages::User.new(content, id: id, files: files)
  when :assistant
    tool_calls = (msg[:tool_calls] || []).map { |tc|
      tc.is_a?(Riffer::Messages::Assistant::ToolCall) ? tc : Riffer::Messages::Assistant::ToolCall.new(**tc)
    }
    structured_output = msg[:structured_output]
    finish_reason = msg[:finish_reason]&.to_sym
    Riffer::Messages::Assistant.new(content, id: id, tool_calls: tool_calls, structured_output: structured_output, finish_reason: finish_reason)
  when :system
    Riffer::Messages::System.new(content, id: id)
  when :tool
    tool_call_id = msg[:tool_call_id]
    name = msg[:name]
    Riffer::Messages::Tool.new(content, id: id, tool_call_id: tool_call_id, name: name)
  else
    raise Riffer::ArgumentError, "Unknown message role: #{role}"
  end
end

# File lib/riffer/messages/base.rb, line 58
def initialize(content, id: nil)
  @content = content
  @id = id || generate_id
end

# File lib/riffer/messages/base.rb, line 92
def +(other)
  raise NotImplementedError, "Subclasses must implement #+"
end

# File lib/riffer/messages/base.rb, line 84
def has_tool_calls?
  false
end

# File lib/riffer/messages/base.rb, line 76
def role
  raise NotImplementedError, "Subclasses must implement #role"
end

# File lib/riffer/messages/base.rb, line 67
def to_h
  hash = {role: role, content: content}
  hash[:id] = id unless id.nil?
  hash
end