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Merged
tranphuc8a merged 1 commit into from
Nov 4, 2025
Merged

update #55

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44 changes: 29 additions & 15 deletions backend/fastapi/src/adapter/factory/service_factory.py
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Original file line number Diff line number Diff line change
Expand Up @@ -17,32 +17,46 @@
from src.application.usecases.gemini_usecase import GeminiUseCase


db: AsyncSession = get_async_session()
default_conversation_output_port: ConversationOutputPort = ConversationRepository(db)
default_message_output_port: MessageOutputPort = MessageRepository(db)
default_conversation_input_port: ConversationInputPort = ConversationUseCase(default_conversation_output_port, default_message_output_port)
# default_message_input_port: MessageInputPort = MessageUsecase(default_conversation_output_port)
default_health_input_port: HealthInputPort = HealthUsecase([default_conversation_output_port, default_message_output_port])

# Gemini wiring (client -> output port/service -> input usecase)
_default_gemini_client = GeminiClient()
_default_gemini_output_port = GeminiService(_default_gemini_client)
default_gemini_input_port: GeminiInputPort = GeminiUseCase(_default_gemini_output_port, default_message_output_port, default_conversation_output_port)
_cached_ports = {}


def _make_repos_and_ports() -> tuple[ConversationOutputPort, MessageOutputPort, ConversationInputPort, HealthInputPort]:
"""Create fresh DB-backed repositories and usecases. This is created lazily
per-call to avoid binding AsyncSession/engine to a different event loop at import time.
"""
db: AsyncSession = get_async_session()
conv_repo: ConversationOutputPort = ConversationRepository(db)
msg_repo: MessageOutputPort = MessageRepository(db)
conv_input: ConversationInputPort = ConversationUseCase(conv_repo, msg_repo)
health_input: HealthInputPort = HealthUsecase([conv_repo, msg_repo])
return conv_repo, msg_repo, conv_input, health_input


def _make_gemini_input_port(msg_repo: MessageOutputPort, conv_repo: ConversationOutputPort) -> GeminiInputPort:
# instantiate GeminiClient/Service lazily to avoid any async client being
# created at import time (which can bind to an unrelated event loop).
client = GeminiClient()
svc = GeminiService(client)
return GeminiUseCase(svc, msg_repo, conv_repo)

class ServiceFactory:

@staticmethod
def get_conversation_input_port() -> ConversationInputPort:
return default_conversation_input_port
_, _, conv_input, _ = _make_repos_and_ports()
return conv_input

@staticmethod
def get_conversation_output_port() -> ConversationOutputPort:
return default_conversation_output_port
conv_repo, _, _, _ = _make_repos_and_ports()
return conv_repo

@staticmethod
def get_health_input_port() -> HealthInputPort:
return default_health_input_port
_, _, _, health_input = _make_repos_and_ports()
return health_input

@staticmethod
def get_gemini_input_port() -> GeminiInputPort:
return default_gemini_input_port
conv_repo, msg_repo, _, _ = _make_repos_and_ports()
return _make_gemini_input_port(msg_repo, conv_repo)
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