"""出库放行审核 · 出库物料准备（台账 CRUD）"""
from __future__ import annotations

from datetime import datetime
from decimal import Decimal
from typing import Any, Dict, List, Optional

from fastapi import HTTPException
from sqlalchemy.orm import Session

from app.core.utils import generate_uuid
from app.crud import cell_product as cell_product_svc
from app.models.models import (
    BizCellProduct,
    BizOutboundReleaseCell,
    BizOutboundReleaseMaterial,
    BizOutboundReleasePaper,
    BizOutboundReleaseQcMaterial,
    BizPilotInfusionSchedule,
)
from app.models.material import BizMaterial


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


def _cell_row_to_dict(row: BizOutboundReleaseCell) -> Dict[str, Any]:
    return {
        "id": row.id,
        "materialId": row.material_id or "",
        "infusionScheduleId": row.infusion_schedule_id or "",
        "cellProductId": row.cell_product_id or "",
        "productCode": row.product_code or "",
        "productName": row.product_name or "",
        "productTypeName": row.product_type_name or "",
        "specName": row.spec_name or "",
        "passage": row.passage or "",
        "batchNo": row.batch_no or "",
        "storageSlotName": row.storage_slot_name or "",
        "productStatus": row.product_status or "",
        "remark": row.remark or "",
        "orderNum": row.order_num if row.order_num is not None else 0,
    }


def _enrich_cell_dicts_with_live_status(
    db: Session,
    tenant_no: str,
    cells: List[Dict[str, Any]],
) -> List[Dict[str, Any]]:
    """出库细胞状态以细胞产品库为准（台账 product_status 仅为保存时快照）。"""
    cp_ids = {
        (c.get("cellProductId") or c.get("cell_product_id") or "").strip()
        for c in cells
    }
    cp_ids.discard("")
    if not cp_ids:
        return cells

    live_status: Dict[str, str] = {}
    for product in (
        db.query(BizCellProduct)
        .filter(
            BizCellProduct.id.in_(cp_ids),
            BizCellProduct.tenant_no == tenant_no,
            BizCellProduct.del_flag == 0,
        )
        .all()
    ):
        live_status[product.id] = (product.product_status or "").strip()

    enriched: List[Dict[str, Any]] = []
    for cell in cells:
        cp_id = (cell.get("cellProductId") or cell.get("cell_product_id") or "").strip()
        status = live_status.get(cp_id)
        if status:
            enriched.append({**cell, "productStatus": status})
        else:
            enriched.append(cell)
    return enriched


def _qc_material_row_to_dict(row: BizOutboundReleaseQcMaterial) -> Dict[str, Any]:
    return {
        "id": row.id,
        "materialId": row.material_id or "",
        "infusionScheduleId": row.infusion_schedule_id or "",
        "qcMaterialId": row.qc_material_id or "",
        "qty": float(row.qty) if row.qty is not None else 0,
        "materialCode": row.material_code or "",
        "materialName": row.material_name or "",
        "specModel": row.spec_model or "",
        "unit": row.unit or "",
        "remark": row.remark or "",
        "orderNum": row.order_num if row.order_num is not None else 0,
    }


def _paper_row_to_dict(row: BizOutboundReleasePaper) -> Dict[str, Any]:
    return {
        "id": row.id,
        "materialId": row.material_id or "",
        "infusionScheduleId": row.infusion_schedule_id or "",
        "paperName": row.paper_name or "",
        "copies": row.copies if row.copies is not None else 1,
        "attachmentUrl": row.attachment_url or "",
        "remark": row.remark or "",
        "orderNum": row.order_num if row.order_num is not None else 0,
    }


def _legacy_paper_rows_from_attachments(paper_attachments: Optional[str]) -> List[Dict[str, Any]]:
    urls = (paper_attachments or "").strip()
    if not urls:
        return []
    rows: List[Dict[str, Any]] = []
    for idx, file_url in enumerate([u.strip() for u in urls.split(",") if u.strip()]):
        file_name = file_url.split("/").pop() or "附件"
        rows.append(
            {
                "id": "",
                "materialId": "",
                "infusionScheduleId": "",
                "paperName": file_name,
                "copies": 1,
                "attachmentUrl": file_url,
                "remark": "",
                "orderNum": idx + 1,
            }
        )
    return rows


def _material_header_to_dict(
    header: Optional[BizOutboundReleaseMaterial],
    cells: List[Dict[str, Any]],
    qc_materials: List[Dict[str, Any]],
    paper_materials: List[Dict[str, Any]],
) -> Dict[str, Any]:
    if not header:
        return {
            "id": "",
            "infusionScheduleId": "",
            "paperAttachments": "",
            "paperMaterials": paper_materials,
            "remark": "",
            "cells": cells,
            "qcMaterials": qc_materials,
            "createTime": "",
            "updateTime": "",
        }
    return {
        "id": header.id,
        "infusionScheduleId": header.infusion_schedule_id or "",
        "paperAttachments": header.paper_attachments or "",
        "paperMaterials": paper_materials,
        "remark": header.remark or "",
        "cells": cells,
        "qcMaterials": qc_materials,
        "createTime": _fmt_dt(header.create_time),
        "updateTime": _fmt_dt(header.update_time),
    }


def _soft_delete_outbound_cells_not_in(
    db: Session,
    schedule_id: str,
    tenant_no: str,
    keep_cell_product_ids: set,
    user_id: str,
    now: datetime,
) -> None:
    q = db.query(BizOutboundReleaseCell).filter(
        BizOutboundReleaseCell.infusion_schedule_id == schedule_id,
        BizOutboundReleaseCell.tenant_no == tenant_no,
        BizOutboundReleaseCell.del_flag == 0,
    )
    if keep_cell_product_ids:
        q = q.filter(BizOutboundReleaseCell.cell_product_id.notin_(keep_cell_product_ids))
    q.update({"del_flag": 1, "update_by": user_id, "update_time": now}, synchronize_session=False)


def _soft_delete_outbound_qc_materials_not_in(
    db: Session,
    schedule_id: str,
    tenant_no: str,
    keep_qc_material_ids: set,
    user_id: str,
    now: datetime,
) -> None:
    q = db.query(BizOutboundReleaseQcMaterial).filter(
        BizOutboundReleaseQcMaterial.infusion_schedule_id == schedule_id,
        BizOutboundReleaseQcMaterial.tenant_no == tenant_no,
        BizOutboundReleaseQcMaterial.del_flag == 0,
    )
    if keep_qc_material_ids:
        q = q.filter(BizOutboundReleaseQcMaterial.qc_material_id.notin_(keep_qc_material_ids))
    q.update({"del_flag": 1, "update_by": user_id, "update_time": now}, synchronize_session=False)


def _find_outbound_cell_row(
    db: Session, schedule_id: str, tenant_no: str, cell_product_id: str
) -> Optional[BizOutboundReleaseCell]:
    """按 schedule+cell 查找台账行（优先未删除）。"""
    return (
        db.query(BizOutboundReleaseCell)
        .filter(
            BizOutboundReleaseCell.infusion_schedule_id == schedule_id,
            BizOutboundReleaseCell.cell_product_id == cell_product_id,
            BizOutboundReleaseCell.tenant_no == tenant_no,
        )
        .order_by(BizOutboundReleaseCell.del_flag.asc())
        .first()
    )


def _find_outbound_qc_material_row(
    db: Session, schedule_id: str, tenant_no: str, qc_material_id: str
) -> Optional[BizOutboundReleaseQcMaterial]:
    return (
        db.query(BizOutboundReleaseQcMaterial)
        .filter(
            BizOutboundReleaseQcMaterial.infusion_schedule_id == schedule_id,
            BizOutboundReleaseQcMaterial.qc_material_id == qc_material_id,
            BizOutboundReleaseQcMaterial.tenant_no == tenant_no,
        )
        .order_by(BizOutboundReleaseQcMaterial.del_flag.asc())
        .first()
    )


def _get_schedule(db: Session, schedule_id: str, tenant_no: str) -> Optional[BizPilotInfusionSchedule]:
    sid = (schedule_id or "").strip()
    if not sid:
        return None
    return (
        db.query(BizPilotInfusionSchedule)
        .filter(
            BizPilotInfusionSchedule.id == sid,
            BizPilotInfusionSchedule.tenant_no == tenant_no,
            BizPilotInfusionSchedule.del_flag == 0,
        )
        .first()
    )


def get_outbound_material(
    db: Session,
    schedule_id: str,
    tenant_no: str,
) -> Dict[str, Any]:
    """获取输注计划的出库物料准备（台账）。"""
    schedule = _get_schedule(db, schedule_id, tenant_no)
    if not schedule:
        raise HTTPException(status_code=404, detail="输注计划不存在")

    header = (
        db.query(BizOutboundReleaseMaterial)
        .filter(
            BizOutboundReleaseMaterial.infusion_schedule_id == schedule_id,
            BizOutboundReleaseMaterial.tenant_no == tenant_no,
            BizOutboundReleaseMaterial.del_flag == 0,
        )
        .first()
    )

    cell_rows = (
        db.query(BizOutboundReleaseCell)
        .filter(
            BizOutboundReleaseCell.infusion_schedule_id == schedule_id,
            BizOutboundReleaseCell.tenant_no == tenant_no,
            BizOutboundReleaseCell.del_flag == 0,
        )
        .order_by(
            BizOutboundReleaseCell.order_num.asc(),
            BizOutboundReleaseCell.create_time.asc(),
        )
        .all()
    )
    qc_rows = (
        db.query(BizOutboundReleaseQcMaterial)
        .filter(
            BizOutboundReleaseQcMaterial.infusion_schedule_id == schedule_id,
            BizOutboundReleaseQcMaterial.tenant_no == tenant_no,
            BizOutboundReleaseQcMaterial.del_flag == 0,
        )
        .order_by(
            BizOutboundReleaseQcMaterial.order_num.asc(),
            BizOutboundReleaseQcMaterial.create_time.asc(),
        )
        .all()
    )
    paper_rows = (
        db.query(BizOutboundReleasePaper)
        .filter(
            BizOutboundReleasePaper.infusion_schedule_id == schedule_id,
            BizOutboundReleasePaper.tenant_no == tenant_no,
            BizOutboundReleasePaper.del_flag == 0,
        )
        .order_by(
            BizOutboundReleasePaper.order_num.asc(),
            BizOutboundReleasePaper.create_time.asc(),
        )
        .all()
    )

    paper_materials = [_paper_row_to_dict(r) for r in paper_rows]
    if not paper_materials and header and (header.paper_attachments or "").strip():
        paper_materials = _legacy_paper_rows_from_attachments(header.paper_attachments)

    cell_dicts = _enrich_cell_dicts_with_live_status(
        db,
        tenant_no,
        [_cell_row_to_dict(r) for r in cell_rows],
    )

    return _material_header_to_dict(
        header,
        cell_dicts,
        [_qc_material_row_to_dict(r) for r in qc_rows],
        paper_materials,
    )


def save_outbound_material(
    db: Session,
    schedule_id: str,
    *,
    paper_attachments: Optional[str],
    paper_materials: List[Dict[str, Any]],
    remark: Optional[str],
    cells: List[Dict[str, Any]],
    qc_materials: List[Dict[str, Any]],
    tenant_no: str,
    user_id: str,
    create_dept_id: str = "",
) -> Dict[str, Any]:
    """全量保存出库物料准备（台账，不联动库存）。"""
    schedule = _get_schedule(db, schedule_id, tenant_no)
    if not schedule:
        raise HTTPException(status_code=404, detail="输注计划不存在")

    cell_ids = [
        (it.get("cellProductId") or it.get("cell_product_id") or "").strip()
        for it in (cells or [])
    ]
    qc_ids = [
        (it.get("materialId") or it.get("material_id") or "").strip()
        for it in (qc_materials or [])
    ]

    if len([x for x in cell_ids if x]) != len(set(x for x in cell_ids if x)):
        raise HTTPException(status_code=400, detail="同一输注计划中不能重复添加相同细胞产品")
    if len([x for x in qc_ids if x]) != len(set(x for x in qc_ids if x)):
        raise HTTPException(status_code=400, detail="同一输注计划中不能重复添加相同物料")

    now = datetime.now()

    header = (
        db.query(BizOutboundReleaseMaterial)
        .filter(
            BizOutboundReleaseMaterial.infusion_schedule_id == schedule_id,
            BizOutboundReleaseMaterial.tenant_no == tenant_no,
            BizOutboundReleaseMaterial.del_flag == 0,
        )
        .first()
    )
    if not header:
        header = BizOutboundReleaseMaterial(
            id=generate_uuid(),
            infusion_schedule_id=schedule_id,
            tenant_no=tenant_no,
            order_num=0,
            create_by=user_id,
            create_dept_id=create_dept_id or "",
            create_time=now,
            del_flag=0,
        )
        db.add(header)
        db.flush()
    else:
        header.update_by = user_id
        header.update_time = now

    header.paper_attachments = None
    header.remark = (remark or "").strip() or None
    db.add(header)

    incoming_cell_ids = {x for x in cell_ids if x}
    incoming_qc_ids = {x for x in qc_ids if x}
    _soft_delete_outbound_cells_not_in(
        db, schedule_id, tenant_no, incoming_cell_ids, user_id, now
    )
    _soft_delete_outbound_qc_materials_not_in(
        db, schedule_id, tenant_no, incoming_qc_ids, user_id, now
    )

    db.query(BizOutboundReleasePaper).filter(
        BizOutboundReleasePaper.infusion_schedule_id == schedule_id,
        BizOutboundReleasePaper.tenant_no == tenant_no,
        BizOutboundReleasePaper.del_flag == 0,
    ).update({"del_flag": 1, "update_by": user_id, "update_time": now}, synchronize_session=False)
    db.flush()

    for idx, item in enumerate(cells or []):
        cp_id = (item.get("cellProductId") or item.get("cell_product_id") or "").strip()
        if not cp_id:
            raise HTTPException(status_code=400, detail="细胞产品ID不能为空")

        product = (
            db.query(BizCellProduct)
            .filter(
                BizCellProduct.id == cp_id,
                BizCellProduct.tenant_no == tenant_no,
                BizCellProduct.del_flag == 0,
            )
            .first()
        )
        if not product:
            raise HTTPException(status_code=400, detail=f"细胞产品不存在或已删除（ID: {cp_id}）")

        enriched = cell_product_svc._enrich_product_dicts(
            db,
            tenant_no,
            [cell_product_svc._row_to_dict(product)],
        )[0]

        cell_row = _find_outbound_cell_row(db, schedule_id, tenant_no, cp_id)
        if cell_row:
            cell_row.material_id = header.id
            cell_row.product_code = enriched.get("productCode") or ""
            cell_row.product_name = enriched.get("productName") or ""
            cell_row.product_type_name = enriched.get("productTypeName") or ""
            cell_row.spec_name = enriched.get("specName") or ""
            cell_row.passage = enriched.get("passage") or ""
            cell_row.batch_no = enriched.get("batchNo") or ""
            cell_row.storage_slot_name = enriched.get("storageSlotName") or ""
            cell_row.product_status = enriched.get("productStatus") or ""
            cell_row.order_num = idx + 1
            cell_row.remark = (item.get("remark") or "").strip() or None
            cell_row.del_flag = 0
            cell_row.update_by = user_id
            cell_row.update_time = now
            db.add(cell_row)
        else:
            db.add(
                BizOutboundReleaseCell(
                    id=generate_uuid(),
                    material_id=header.id,
                    infusion_schedule_id=schedule_id,
                    cell_product_id=cp_id,
                    product_code=enriched.get("productCode") or "",
                    product_name=enriched.get("productName") or "",
                    product_type_name=enriched.get("productTypeName") or "",
                    spec_name=enriched.get("specName") or "",
                    passage=enriched.get("passage") or "",
                    batch_no=enriched.get("batchNo") or "",
                    storage_slot_name=enriched.get("storageSlotName") or "",
                    product_status=enriched.get("productStatus") or "",
                    tenant_no=tenant_no,
                    order_num=idx + 1,
                    remark=(item.get("remark") or "").strip() or None,
                    create_by=user_id,
                    create_dept_id=create_dept_id or "",
                    create_time=now,
                    update_by=user_id,
                    update_time=now,
                    del_flag=0,
                )
            )

    for idx, item in enumerate(qc_materials or []):
        mid = (item.get("materialId") or item.get("material_id") or "").strip()
        qty_raw = item.get("qty")
        if not mid:
            raise HTTPException(status_code=400, detail="市场物料ID不能为空")
        try:
            qty_dec = Decimal(str(qty_raw))
        except Exception:
            raise HTTPException(status_code=400, detail="物料用量格式无效")
        if qty_dec <= 0:
            raise HTTPException(status_code=400, detail="物料用量必须大于0")

        material = (
            db.query(BizMaterial)
            .filter(
                BizMaterial.id == mid,
                BizMaterial.tenant_no == tenant_no,
                BizMaterial.del_flag == 0,
            )
            .first()
        )
        if not material:
            raise HTTPException(status_code=400, detail=f"市场物料不存在或已删除（ID: {mid}）")

        qc_row = _find_outbound_qc_material_row(db, schedule_id, tenant_no, mid)
        if qc_row:
            qc_row.material_id = header.id
            qc_row.qty = qty_dec
            qc_row.material_code = material.material_code or ""
            qc_row.material_name = material.material_name or ""
            qc_row.spec_model = material.spec_model or ""
            qc_row.unit = material.unit or ""
            qc_row.order_num = idx + 1
            qc_row.remark = (item.get("remark") or "").strip() or None
            qc_row.del_flag = 0
            qc_row.update_by = user_id
            qc_row.update_time = now
            db.add(qc_row)
        else:
            db.add(
                BizOutboundReleaseQcMaterial(
                    id=generate_uuid(),
                    material_id=header.id,
                    infusion_schedule_id=schedule_id,
                    qc_material_id=mid,
                    qty=qty_dec,
                    material_code=material.material_code or "",
                    material_name=material.material_name or "",
                    spec_model=material.spec_model or "",
                    unit=material.unit or "",
                    tenant_no=tenant_no,
                    order_num=idx + 1,
                    remark=(item.get("remark") or "").strip() or None,
                    create_by=user_id,
                    create_dept_id=create_dept_id or "",
                    create_time=now,
                    update_by=user_id,
                    update_time=now,
                    del_flag=0,
                )
            )

    for idx, item in enumerate(paper_materials or []):
        paper_name = (item.get("paperName") or item.get("paper_name") or "").strip()
        attachment_url = (item.get("attachmentUrl") or item.get("attachment_url") or "").strip()
        copies_raw = item.get("copies")
        if not paper_name:
            raise HTTPException(status_code=400, detail="纸质材料名称不能为空")
        if not attachment_url:
            raise HTTPException(status_code=400, detail="纸质材料附件不能为空")
        try:
            copies = int(copies_raw)
        except Exception:
            raise HTTPException(status_code=400, detail="纸质材料份数格式无效")
        if copies <= 0:
            raise HTTPException(status_code=400, detail="纸质材料份数必须大于0")

        db.add(
            BizOutboundReleasePaper(
                id=generate_uuid(),
                material_id=header.id,
                infusion_schedule_id=schedule_id,
                paper_name=paper_name,
                copies=copies,
                attachment_url=attachment_url,
                tenant_no=tenant_no,
                order_num=idx + 1,
                remark=(item.get("remark") or "").strip() or None,
                create_by=user_id,
                create_dept_id=create_dept_id or "",
                create_time=now,
                update_by=user_id,
                update_time=now,
                del_flag=0,
            )
        )

    db.flush()
    return get_outbound_material(db, schedule_id, tenant_no)