"""样本入库短信通知 CRUD"""
from __future__ import annotations

import math
from datetime import datetime
from typing import Any, Dict, List, Optional, Tuple

from sqlalchemy import and_, or_
from sqlalchemy.orm import Session

from app.core.utils import generate_uuid
from app.models.models import (
    BizCellSampleType,
    BizCollectionProtocol,
    BizProtocolPartyCustomer,
    BizProtocolSample,
    BizStorageEntrySmsNotification,
    BizStorageReleaseReview,
    SysUser,
)

_UNICODE_CI = "utf8mb4_unicode_ci"


def _unicode_ci(col):
    return col.collate(_UNICODE_CI)


def total_pages(total: int, page_size: int) -> int:
    if total <= 0:
        return 0
    return int(math.ceil(total / float(page_size)))


def _fmt_dt(t: Optional[datetime]) -> str:
    return t.strftime("%Y-%m-%d %H:%M:%S") if t else ""


def _normalize_date_bound(value: str, *, end_of_day: bool = False) -> str:
    val = (value or "").strip()
    if len(val) == 10:
        return f"{val} 23:59:59" if end_of_day else f"{val} 00:00:00"
    return val


def _storage_status_label(review: Optional[BizStorageReleaseReview]) -> str:
    if not review:
        return "待入库确认"
    if review.storage_status == "yrk":
        return "已入库"
    if review.review_conclusion == "btg":
        return "拒绝入库"
    return "待入库确认"


def _row_to_dict(
    *,
    notification_id: str = "",
    storage_review_id: str = "",
    protocol_id: str = "",
    sms_notified: int = 0,
    sms_content: str = "",
    protocol_no: str = "",
    mother_name: str = "",
    newborn_name: str = "",
    sample_code: str = "",
    lab_storage_code: str = "",
    sample_type_name: str = "",
    storage_time: str = "",
    storage_status_label: str = "",
    collection_protocol_id: str = "",
    protocol_status: str = "",
) -> Dict[str, Any]:
    return {
        "id": notification_id,
        "storageReviewId": storage_review_id,
        "protocolId": protocol_id,
        "protocolNo": protocol_no,
        "protocolStatus": protocol_status,
        "motherName": mother_name,
        "newbornName": newborn_name,
        "sampleCode": sample_code,
        "labStorageCode": lab_storage_code,
        "sampleTypeName": sample_type_name,
        "storageTime": storage_time,
        "storageStatusLabel": storage_status_label,
        "smsNotified": sms_notified,
        "smsContent": sms_content,
        "collectionProtocolId": collection_protocol_id,
    }


def _base_query(db: Session, tenant_no: str):
    return (
        db.query(
            BizProtocolSample,
            BizStorageReleaseReview,
            BizStorageEntrySmsNotification,
            BizCollectionProtocol,
            BizProtocolPartyCustomer,
        )
        .outerjoin(
            BizStorageReleaseReview,
            and_(
                _unicode_ci(BizStorageReleaseReview.sample_code)
                == _unicode_ci(BizProtocolSample.sample_code),
                BizStorageReleaseReview.tenant_no == tenant_no,
                BizStorageReleaseReview.reception_source == "cell_storage",
                BizStorageReleaseReview.del_flag == 0,
            ),
        )
        .outerjoin(
            BizStorageEntrySmsNotification,
            and_(
                BizStorageEntrySmsNotification.storage_review_id == BizStorageReleaseReview.id,
                BizStorageEntrySmsNotification.tenant_no == tenant_no,
                BizStorageEntrySmsNotification.del_flag == "0",
            ),
        )
        .outerjoin(
            BizCollectionProtocol,
            and_(
                BizCollectionProtocol.id == BizProtocolSample.collection_protocol_id,
                BizCollectionProtocol.del_flag == 0,
            ),
        )
        .outerjoin(
            BizProtocolPartyCustomer,
            and_(
                BizProtocolPartyCustomer.collection_protocol_id == BizCollectionProtocol.id,
                BizProtocolPartyCustomer.del_flag == 0,
            ),
        )
        .filter(
            BizProtocolSample.tenant_no == tenant_no,
            BizProtocolSample.del_flag == 0,
        )
    )


def _ensure_notification(
    db: Session,
    review: Optional[BizStorageReleaseReview],
    tenant_no: str,
    user_id: Optional[str] = None,
) -> Optional[BizStorageEntrySmsNotification]:
    if not review:
        return None
    existing = (
        db.query(BizStorageEntrySmsNotification)
        .filter(
            BizStorageEntrySmsNotification.storage_review_id == review.id,
            BizStorageEntrySmsNotification.tenant_no == tenant_no,
            BizStorageEntrySmsNotification.del_flag == "0",
        )
        .first()
    )
    if existing:
        return existing

    obj = BizStorageEntrySmsNotification(
        id=generate_uuid(),
        storage_review_id=review.id,
        protocol_id=review.protocol_id or "",
        sms_notified=0,
        tenant_no=tenant_no,
        create_by=user_id,
        update_by=user_id,
    )
    db.add(obj)
    db.flush()
    db.commit()
    db.refresh(obj)
    return obj


def resolve_notification(
    db: Session,
    *,
    notification_id: str,
    tenant_no: str,
    storage_review_id: Optional[str] = None,
    user_id: Optional[str] = None,
) -> Optional[BizStorageEntrySmsNotification]:
    """Find notification by id; fallback to storage_review_id and ensure row exists."""
    notif = (
        db.query(BizStorageEntrySmsNotification)
        .filter(
            BizStorageEntrySmsNotification.id == notification_id,
            BizStorageEntrySmsNotification.tenant_no == tenant_no,
            BizStorageEntrySmsNotification.del_flag == "0",
        )
        .first()
    )
    if notif:
        return notif

    if not storage_review_id:
        return None

    review = (
        db.query(BizStorageReleaseReview)
        .filter(
            BizStorageReleaseReview.id == storage_review_id,
            BizStorageReleaseReview.tenant_no == tenant_no,
            BizStorageReleaseReview.del_flag == 0,
        )
        .first()
    )
    if not review:
        return None
    return _ensure_notification(db, review, tenant_no=tenant_no, user_id=user_id)


def _fetch_sample_type_name(db: Session, sample_type_id: Optional[str], tenant_no: str) -> str:
    if not sample_type_id:
        return ""
    t = (
        db.query(BizCellSampleType)
        .filter(
            BizCellSampleType.id == sample_type_id,
            BizCellSampleType.del_flag == 0,
        )
        .first()
    )
    return (t.type_name or "") if t else ""


def list_notifications(
    db: Session,
    *,
    page: int = 1,
    page_size: int = 10,
    tenant_no: str,
    keyword: Optional[str] = None,
    storage_status: Optional[str] = None,
    sms_notified: Optional[int] = None,
    storage_time_start: Optional[str] = None,
    storage_time_end: Optional[str] = None,
    user_info=None,
) -> Tuple[List[Dict[str, Any]], int]:
    if not tenant_no:
        return [], 0

    q = _base_query(db, tenant_no)

    if keyword and keyword.strip():
        kw = f"%{keyword.strip()}%"
        kw_conds = [
            BizProtocolPartyCustomer.mother_name.like(kw),
            BizProtocolSample.sample_code.like(kw),
        ]
        from app.crud import sample_reception as reception_svc

        rec_ids = reception_svc.reception_ids_matching_lab_storage_keyword(
            db, tenant_no, keyword, reception_source="cell_storage"
        )
        if rec_ids:
            kw_conds.append(BizStorageReleaseReview.reception_id.in_(rec_ids))
        lab_codes = reception_svc.sample_codes_matching_lab_storage_keyword(
            db, tenant_no, keyword, reception_source="cell_storage"
        )
        if lab_codes:
            kw_conds.append(BizProtocolSample.sample_code.in_(lab_codes))
        q = q.filter(or_(*kw_conds))

    if storage_status:
        if storage_status == "yrk":
            q = q.filter(BizStorageReleaseReview.storage_status == "yrk")
        elif storage_status == "btg":
            q = q.filter(BizStorageReleaseReview.review_conclusion == "btg")
        elif storage_status == "drk":
            q = q.filter(
                or_(
                    BizStorageReleaseReview.storage_status == "drk",
                    BizStorageReleaseReview.id.is_(None),
                )
            )

    if sms_notified is not None:
        if sms_notified == 0:
            q = q.filter(
                or_(
                    BizStorageEntrySmsNotification.sms_notified == 0,
                    BizStorageEntrySmsNotification.id.is_(None),
                )
            )
        else:
            q = q.filter(BizStorageEntrySmsNotification.sms_notified == sms_notified)

    if storage_time_start:
        q = q.filter(
            BizStorageReleaseReview.storage_time >= _normalize_date_bound(storage_time_start)
        )
    if storage_time_end:
        q = q.filter(
            BizStorageReleaseReview.storage_time
            <= _normalize_date_bound(storage_time_end, end_of_day=True)
        )

    if user_info:
        from app.core.data_scope import apply_data_scope
        q = apply_data_scope(q, BizProtocolSample, user_info, db, tenant_no)

    total = q.count()
    page = max(1, page)
    page_size = min(max(1, page_size), 100)

    # 末尾加 BizProtocolSample.id 作为确定性排序，避免相同时间的记录顺序不确定
    rows = (
        q.order_by(
            BizStorageReleaseReview.storage_time.is_(None),
            BizStorageReleaseReview.storage_time.desc(),
            BizProtocolSample.create_time.desc(),
            BizProtocolSample.id.desc(),
        )
        .offset((page - 1) * page_size)
        .limit(page_size)
        .all()
    )

    sample_type_ids = list({
        psample.sample_type_id
        for psample, _, _, _, _ in rows
        if psample and psample.sample_type_id
    })
    type_map: Dict[str, str] = {}
    if sample_type_ids:
        for t in (
            db.query(BizCellSampleType)
            .filter(BizCellSampleType.id.in_(sample_type_ids), BizCellSampleType.del_flag == 0)
            .all()
        ):
            type_map[t.id] = t.type_name or ""

    items: List[Dict[str, Any]] = []
    for psample, review, notif, proto, party in rows:
        if notif is None and review is not None:
            notif = _ensure_notification(db, review, tenant_no=tenant_no)

        sample_type_name = ""
        if psample and psample.sample_type_id:
            sample_type_name = type_map.get(psample.sample_type_id, "")

        display_time = ""
        if review:
            if review.storage_status == "yrk" and review.storage_time:
                display_time = _fmt_dt(review.storage_time)
            elif review.review_time:
                display_time = _fmt_dt(review.review_time)

        items.append(
            _row_to_dict(
                notification_id=(notif.id if notif else ""),
                storage_review_id=(review.id if review else ""),
                protocol_id=(notif.protocol_id or "") if notif else "",
                sms_notified=(notif.sms_notified or 0) if notif else 0,
                sms_content=(notif.sms_content or "") if notif else "",
                protocol_no=(proto.protocol_no or "") if proto else "",
                mother_name=(party.mother_name or "") if party else "",
                newborn_name=(party.newborn_name or "") if party else "",
                sample_code=psample.sample_code or "",
                sample_type_name=sample_type_name,
                storage_time=display_time,
                storage_status_label=_storage_status_label(review),
                collection_protocol_id=(proto.id or "") if proto else "",
                protocol_status=(proto.protocol_status or "") if proto else "",
            )
        )
    if items:
        from app.crud import sample_reception as reception_svc

        codes = [i["sampleCode"] for i in items if i.get("sampleCode")]
        code_map = reception_svc.get_lab_storage_code_map_by_sample_codes(
            db, tenant_no, codes, reception_source="cell_storage"
        )
        for item in items:
            sc = (item.get("sampleCode") or "").strip()
            item["labStorageCode"] = code_map.get(sc, "") if sc else ""
    return items, int(total)


def toggle_notification_status(
    db: Session,
    *,
    notification_id: str,
    tenant_no: str,
    sms_notified: int,
    user_id: Optional[str] = None,
    storage_review_id: Optional[str] = None,
) -> Optional[BizStorageEntrySmsNotification]:
    notif = resolve_notification(
        db,
        notification_id=notification_id,
        tenant_no=tenant_no,
        storage_review_id=storage_review_id,
        user_id=user_id,
    )
    if not notif:
        return None

    notif.sms_notified = sms_notified
    if sms_notified == 1:
        notif.notified_by = user_id
        notif.notified_time = datetime.now()
        _user = db.query(SysUser.nick_name).filter(SysUser.id == user_id).first()
        notif.notified_by_name = _user.nick_name if _user else None
    else:
        notif.notified_by = None
        notif.notified_by_name = None
        notif.notified_time = None
    notif.update_by = user_id
    notif.update_time = datetime.now()
    db.commit()
    db.refresh(notif)
    return notif


def generate_sms_content(
    db: Session,
    *,
    notification_id: str,
    tenant_no: str,
    storage_review_id: Optional[str] = None,
    user_id: Optional[str] = None,
) -> Optional[str]:
    notif = resolve_notification(
        db,
        notification_id=notification_id,
        tenant_no=tenant_no,
        storage_review_id=storage_review_id,
        user_id=user_id,
    )
    if not notif:
        return None

    review = (
        db.query(BizStorageReleaseReview)
        .filter(
            BizStorageReleaseReview.id == notif.storage_review_id,
            BizStorageReleaseReview.tenant_no == tenant_no,
            BizStorageReleaseReview.del_flag == 0,
        )
        .first()
    )
    if not review:
        return None

    mother_name = ""
    proto = (
        db.query(BizCollectionProtocol)
        .filter(
            BizCollectionProtocol.id == review.protocol_id,
            BizCollectionProtocol.del_flag == 0,
        )
        .first()
    )
    if proto:
        party = (
            db.query(BizProtocolPartyCustomer)
            .filter(
                BizProtocolPartyCustomer.collection_protocol_id == proto.id,
                BizProtocolPartyCustomer.del_flag == 0,
            )
            .first()
        )
        if party:
            mother_name = party.mother_name or ""

    sample_code = review.sample_code or ""

    # 短信模板：区分已入库、拒绝入库、待入库确认
    if review.storage_status == "yrk":
        storage_date = _fmt_dt(review.storage_time)[:10] if review.storage_time else ""
        content = (
            f"尊敬的{mother_name}女士，您的样本（编码：{sample_code}）"
            f"已于{storage_date}完成入库处理。如有疑问请联系客服。"
        )
    elif review.review_conclusion == "btg":
        content = (
            f"尊敬的{mother_name}女士，您的样本（编码：{sample_code}）"
            f"入库审核未通过。如有疑问请联系客服。"
        )
    else:
        return "暂无短信内容，样本尚未完成入库确认"

    notif.sms_content = content
    notif.update_time = datetime.now()
    db.commit()
    db.refresh(notif)
    return content