from __future__ import annotations

from fastapi import APIRouter, Depends, File, HTTPException, Query, UploadFile
from fastapi.responses import Response
from sqlalchemy.orm import Session

from .db import get_db
from .device_types import SUPPORTED_DEVICE_TYPES, SUPPORTED_VENDORS
from .ne_connect import schedule_connect_tests
from .ne_crypto import credentials_configured
from .ne_schemas import BatchHopApplyRequest, ConnectTestRequest, ManagedNeCreate, ManagedNeUpdate
from .ne_service import (
    batch_apply_hop_proxy,
    build_managed_ne_import_template,
    create_managed_ne,
    batch_delete_managed_ne,
    delete_managed_ne,
    get_managed_ne,
    import_managed_ne,
    list_managed_ne,
    update_managed_ne,
)
from .models import ManagedNE

router = APIRouter(prefix="/v1/managed-ne", tags=["managed-ne"])


@router.get("")
def api_list_managed_ne(
    keyword: str | None = Query(default=None),
    vendor: str | None = Query(default=None),
    connect_status: str | None = Query(default=None),
    page: int = Query(default=1, ge=1),
    page_size: int = Query(default=50, ge=1, le=500),
    db: Session = Depends(get_db),
):
    return list_managed_ne(
        db,
        keyword=keyword,
        vendor=vendor,
        connect_status=connect_status,
        page=page,
        page_size=page_size,
    )


@router.get("/meta/device-types")
def api_device_types():
    return {"device_types": list(SUPPORTED_DEVICE_TYPES), "vendors": list(SUPPORTED_VENDORS)}


@router.get("/meta/credentials-configured")
def api_credentials_configured():
    return {"configured": credentials_configured()}


@router.post("")
def api_create_managed_ne(body: ManagedNeCreate, db: Session = Depends(get_db)):
    return create_managed_ne(db, body).model_dump()


@router.get("/{ne_id}")
def api_get_managed_ne(ne_id: str, db: Session = Depends(get_db)):
    return get_managed_ne(db, ne_id).model_dump()


@router.patch("/{ne_id}")
def api_update_managed_ne(ne_id: str, body: ManagedNeUpdate, db: Session = Depends(get_db)):
    return update_managed_ne(db, ne_id, body).model_dump()


@router.delete("/{ne_id}")
def api_delete_managed_ne(ne_id: str, db: Session = Depends(get_db)):
    return delete_managed_ne(db, ne_id)


@router.get("/import/template")
def api_managed_ne_import_template(format: str = Query(default="xlsx")):
    filename, payload, media_type = build_managed_ne_import_template(format)
    return Response(
        content=payload,
        media_type=media_type,
        headers={"content-disposition": f'attachment; filename="{filename}"'},
    )


@router.post("/import")
async def api_import_managed_ne(file: UploadFile = File(...), db: Session = Depends(get_db)):
    content = await file.read()
    if not content:
        raise HTTPException(status_code=400, detail="empty_file")
    return import_managed_ne(db, content, file.filename or "import.xlsx").model_dump()


@router.post("/batch-hop")
def api_batch_apply_hop(body: BatchHopApplyRequest, db: Session = Depends(get_db)):
    return batch_apply_hop_proxy(db, body.ids, body.hop)


@router.post("/batch-delete")
def api_batch_delete_managed_ne(body: ConnectTestRequest, db: Session = Depends(get_db)):
    return batch_delete_managed_ne(db, body.ids)


@router.post("/connect-test")
def api_connect_test(body: ConnectTestRequest, db: Session = Depends(get_db)):
    ids = [str(x).strip() for x in body.ids if str(x).strip()]
    if not ids:
        raise HTTPException(status_code=400, detail="ids_required")
    rows = db.query(ManagedNE).filter(ManagedNE.id.in_(ids)).all()
    found_ids = {str(r.id) for r in rows}
    missing = [x for x in ids if x not in found_ids]
    if missing:
        raise HTTPException(status_code=404, detail=f"managed_ne_not_found: {','.join(missing[:5])}")
    submitted = schedule_connect_tests(ids)
    return {"ok": True, "submitted": submitted}