from __future__ import annotations

import asyncio
from datetime import datetime
import re
from typing import Any, Literal, Optional

from fastapi import APIRouter, Depends, HTTPException
from pydantic import BaseModel, Field
from sqlalchemy import and_, select
from sqlalchemy.ext.asyncio import AsyncSession

from ...core.logging import get_logger
from ...core.response import success_response
from ...database import AsyncSessionLocal, get_db
from ...dependencies.auth import get_current_user
from ...dependencies.tenant import get_tenant_id
from ...models import DecisionRecord, IngestEvent, PlanBundle, PortfolioSnapshot, Project, ReplyReceipt, User, WorkItem
from ...services.ai_pmo_cadence_service import AIPMOCadenceService
from ...services.ai_pmo_kernel_service import AIPMOKernelService

router = APIRouter(prefix="/ai-pmo", tags=["AI PMO"])
logger = get_logger(__name__)
FRONT_NOISE_INTENTS = {"query.read_only", "query.answer"}
FRONT_NOISE_EXACT = {
    "收到",
    "收到啦",
    "好的",
    "ok",
    "okk",
    "yes",
    "no",
    "谢谢",
    "thanks",
    "thx",
    "在吗",
    "在不在",
    "怎么样了",
    "咋样了",
    "辛苦了",
}
FRONT_NOISE_HINTS = ("怎么样了", "咋样了", "在吗", "辛苦了", "ok", "谢谢", "收到")
FRONT_NOISE_STRUCTURED_HINTS = ("项目", "信号", "任务", "风险", "进度", "状态", "work_item", "工作项", "#")
GENERIC_SOURCE_TEXT_RE = re.compile(
    r"^(?:请)?(?:按|按照)?(?:这个|上述|这条)?(?:分步|步骤)?(?:骤)?(?:把|将)?(?:它|该需求|这条需求)?(?:加入|接入|录入).{0,24}信号源(?:中)?$",
    re.IGNORECASE,
)
LOW_VALUE_CLOSURE_HINTS = ("缺少项目归属", "必须先确认项目", "无法创建", "不能创建")