"""
报价 PDF 任务壳：入队后由 LibreOffice **单槽**消费。

本文件职责：enqueue_pdf_job / process 调用 LibreOfficeConverter。
禁止：在 http_jobs 槽跑 soffice；禁止回调线程转换。
"""

from __future__ import annotations

import logging
from dataclasses import dataclass
from typing import Any, Optional

from agent.jobs.libreoffice import LibreOfficeConverter, LibreOfficeResult
from agent.redis_coord import get_redis_runtime, try_acquire_idempotency
from agent.redis_coord.keys import STREAM_PDF
from agent.redis_coord.runtime import RedisRuntime
from agent.redis_coord.stream_queue import StreamQueue

logger = logging.getLogger(__name__)


@dataclass
class PdfEnqueueResult:
    accepted: bool
    entry_id: str = ""
    reason: str = ""


def pdf_stream(redis: Optional[RedisRuntime] = None) -> StreamQueue:
    rt = redis or get_redis_runtime()
    return StreamQueue(client=rt.client, stream_suffix=STREAM_PDF)


def enqueue_pdf_job(
    *,
    xlsx_path: str,
    inquiry_no: str = "",
    quote_version: int = 0,
    idempotency_key: str = "",
    redis: Optional[RedisRuntime] = None,
) -> PdfEnqueueResult:
    """Excel→PDF 任务入队；真正转换只在 LibreOffice 槽。"""
    rt = redis or get_redis_runtime()
    q = pdf_stream(rt)
    q.ensure_group()
    if idempotency_key:
        ok = try_acquire_idempotency(
            rt.client,
            scope="pdf",
            idempotency_key=idempotency_key,
            ttl_seconds=600,
        )
        if not ok:
            return PdfEnqueueResult(accepted=False, reason="duplicate_idempotency_key")
    payload = {
        "xlsx_path": xlsx_path,
        "inquiry_no": inquiry_no,
        "quote_version": quote_version,
    }
    entry_id = q.enqueue(payload=payload, idempotency_key=idempotency_key)
    logger.info("pdf.enqueue id=%s inquiry=%s", entry_id, inquiry_no or "-")
    return PdfEnqueueResult(accepted=True, entry_id=entry_id)


def process_pdf_job(
    data: dict[str, Any],
    *,
    converter: Optional[LibreOfficeConverter] = None,
) -> LibreOfficeResult:
    """
    处理一条 PDF 任务（调用方必须已占用 libreoffice 槽）。

    缺 xlsx_path 或本机无 soffice 时返回 ok=False，不抛崩 Worker。
    """
    path = str(data.get("xlsx_path") or "")
    conv = converter or LibreOfficeConverter.from_settings()
    if not path:
        return LibreOfficeResult(ok=False, error="missing_xlsx_path")
    return conv.convert_xlsx_to_pdf(path)