"""AI Steward Service - 主动式 AI 管家核心服务。"""

from __future__ import annotations

import asyncio
import ast
import json
import os
import re
import time
from typing import Any, Dict, List

from sqlalchemy.ext.asyncio import AsyncSession

from ...core.logging import get_logger
from ...core.database import get_db
from ...models import CognitiveConflict, Project, ProjectSignalLink, Signal, TruthNode
from ...utils.project_members import ensure_project_default_members
from ...utils.sequence import ensure_project_id_sequence
from ...utils.title import compact_title
from ..adaptive_rag_service import AdaptiveRAGService
from ..llm_service import LLMService
from ..signal.signal_source_orchestration import SignalSourceOrchestrationService
from ..task_persistence_core import (
    build_task_create_draft,
    normalize_skill_names,
    persist_task,
    resolve_skill_tag_ids_by_names,
)

logger = get_logger(__name__)


def _env_float(name: str, default: float) -> float:
    raw = os.getenv(name)
    if raw is None:
        return float(default)
    try:
        return float(str(raw).strip())
    except Exception:
        return float(default)


def _env_int(name: str, default: int) -> int:
    raw = os.getenv(name)
    if raw is None:
        return int(default)
    try:
        return int(str(raw).strip())
    except Exception:
        return int(default)


PROJECT_CREATION_DRAFT_TIMEOUT_SECONDS = max(
    8.0,
    _env_float("AI_STEWARD_PROJECT_CREATION_STEP_TIMEOUT_SECONDS", 180.0),
)
PROJECT_CREATION_STEP_INITIAL_MAX_TOKENS = max(
    256,
    _env_int("AI_STEWARD_PROJECT_CREATION_STEP_INITIAL_MAX_TOKENS", 2_200),
)
PROJECT_CREATION_STEP_MAX_TOKENS = max(
    PROJECT_CREATION_STEP_INITIAL_MAX_TOKENS,
    _env_int("AI_STEWARD_PROJECT_CREATION_STEP_MAX_TOKENS", 100_000),
)
PROJECT_CREATION_STEP_RETRY_COUNT = max(
    0,
    _env_int("AI_STEWARD_PROJECT_CREATION_STEP_RETRY_COUNT", 1),
)
PROJECT_CREATION_JSON_PARSE_RETRY_COUNT = max(
    0,
    _env_int("AI_STEWARD_PROJECT_CREATION_JSON_PARSE_RETRY_COUNT", 1),
)
PROJECT_CREATION_TASK_CHAIN_TIMEOUT_SECONDS = max(
    PROJECT_CREATION_DRAFT_TIMEOUT_SECONDS,
    _env_float("AI_STEWARD_PROJECT_CREATION_TASK_CHAIN_TIMEOUT_SECONDS", 60.0),
)
PROJECT_CREATION_SERIAL_DRAFT_STEPS = _env_int("AI_STEWARD_PROJECT_CREATION_SERIAL_DRAFT_STEPS", 1) == 1