Checkpointing

from crewai import Crew, CheckpointConfig

crew = Crew(
    agents=[...],
    tasks=[...],
    checkpoint=True,  # يستخدم الافتراضيات: ./.checkpoints, عند task_completed
)
result = crew.kickoff()

from crewai import Crew, CheckpointConfig

crew = Crew(
    agents=[...],
    tasks=[...],
    checkpoint=CheckpointConfig(
        directory="./my_checkpoints",
        on_events=["task_completed", "crew_kickoff_completed"],
        max_checkpoints=5,
    ),
)

crew = Crew(
    agents=[
        Agent(role="Researcher", ...),                  # يرث checkpoint من الطاقم
        Agent(role="Writer", ..., checkpoint=False),     # منسحب، بدون نقاط حفظ
    ],
    tasks=[...],
    checkpoint=True,
)

# استعادة واستئناف
crew = Crew.from_checkpoint("./my_checkpoints/20260407T120000_abc123.json")
result = crew.kickoff()  # يستأنف من اخر مهمة مكتملة

crew = Crew(
    agents=[researcher, writer],
    tasks=[research_task, write_task, review_task],
    checkpoint=CheckpointConfig(directory="./crew_cp"),
)

from crewai.flow.flow import Flow, start, listen
from crewai import CheckpointConfig

class MyFlow(Flow):
    @start()
    def step_one(self):
        return "data"

    @listen(step_one)
    def step_two(self, data):
        return process(data)

flow = MyFlow(
    checkpoint=CheckpointConfig(
        directory="./flow_cp",
        on_events=["method_execution_finished"],
    ),
)
result = flow.kickoff()

# استئناف
flow = MyFlow.from_checkpoint("./flow_cp/20260407T120000_abc123.json")
result = flow.kickoff()

agent = Agent(
    role="Researcher",
    goal="Research topics",
    backstory="Expert researcher",
    checkpoint=CheckpointConfig(
        directory="./agent_cp",
        on_events=["lite_agent_execution_completed"],
    ),
)
result = agent.kickoff(messages=[{"role": "user", "content": "Research AI trends"}])

from crewai import Crew, CheckpointConfig
from crewai.state import JsonProvider

crew = Crew(
    agents=[...],
    tasks=[...],
    checkpoint=CheckpointConfig(
        directory="./my_checkpoints",
        provider=JsonProvider(),
        max_checkpoints=5,
    ),
)

from crewai import Crew, CheckpointConfig
from crewai.state import SqliteProvider

crew = Crew(
    agents=[...],
    tasks=[...],
    checkpoint=CheckpointConfig(
        directory="./.checkpoints.db",
        provider=SqliteProvider(max_checkpoints=50),
    ),
)

from crewai.events.event_bus import crewai_event_bus
from crewai.events.types.llm_events import LLMCallCompletedEvent

# معالج متزامن
@crewai_event_bus.on(LLMCallCompletedEvent)
def on_llm_done(source, event, state):
    path = state.checkpoint("./my_checkpoints")
    print(f"تم حفظ نقطة الحفظ: {path}")

# معالج غير متزامن
@crewai_event_bus.on(LLMCallCompletedEvent)
async def on_llm_done_async(source, event, state):
    path = await state.acheckpoint("./my_checkpoints")
    print(f"تم حفظ نقطة الحفظ: {path}")