# 合同班次入口：领表 3、调页面流、写表 4。不推接口 4。
#
# 崩在 process_status=3。账密读 CONTRACT_USERNAME / CONTRACT_PASSWORD，缺则失败。

from __future__ import annotations

import argparse

from apa_browser_adapter import ApaBrowserAdapter
from contract_create_node import CONTRACT_URL, ContractCreateInput, build_flow_context
from contract_draft import ContractDraft
from contract_flow_steps import run_contract_create_flow
from pathlib import Path

from rpa_oracle import load_job_env
from job import outcome_from_run, run_batch
from persist import KIND_DILIGENCE, KIND_HOLD, KIND_OK, LOOKUP_ONLY_RESULT, ContractOutcome
from repo import OracleContractRepo

DEFAULT_CLAIM_LIMIT = 10


def parse_args(argv: list[str] | None = None) -> argparse.Namespace:
    """解析合同班次参数。不传 --limit 时按行领 10 条，不再全部领走。"""
    parser = argparse.ArgumentParser(description="合同班次：领表 3、按供应商合单、写表 4")
    parser.add_argument(
        "--limit",
        type=int,
        default=DEFAULT_CLAIM_LIMIT,
        help="本班最多领取 N 行，默认 10",
    )
    return parser.parse_args(argv)


def contract_lookup_title(draft: ContractDraft) -> str:
    """拼查重标题：客商名 + 采购协议 + 签订日。不含货主和起止日，也不是合单键。"""
    who = (draft.customer_name or draft.supplier_name or "").strip()
    sign = (draft.contract_sign_date or draft.order_date or "").replace("-", "")
    return f"{who}采购协议{sign}"


def decide_existing_contracts(
    numbers: list[str], *, lookup_only: bool
) -> ContractOutcome | None:
    """按「我的合同」命中行决定这一组。

    0 条且还可以起草时返回 None，调用方才走 S06–S12。
    恰好 1 条复用该合同号，只落表 4。多条停在处理中，不取最新一条。
    只查号时 0 条也停在处理中。
    """
    hits = list(numbers)
    if len(hits) > 1:
        return ContractOutcome(KIND_HOLD, None, "我的合同命中多条")
    if len(hits) == 1:
        number = (hits[0] or "").strip()
        if not number:
            return ContractOutcome(KIND_HOLD, None, LOOKUP_ONLY_RESULT)
        return ContractOutcome(KIND_OK, number, None)
    if lookup_only:
        return ContractOutcome(KIND_HOLD, None, LOOKUP_ONLY_RESULT)
    return None


def _pull_back_to_draft(browser) -> None:
    """一组开始前离开上一张合同的页面，回到起草页。"""
    from contract_common import FORM_PAGE_URL

    browser.open_url(FORM_PAGE_URL)


def _flow_context(draft: ContractDraft):
    """按这组草稿建页面上下文。账密仍只认环境变量。"""
    spec = ContractCreateInput(
        job_id="contract-batch",
        supplier_name=draft.supplier_name,
        order_date=draft.order_date,
        source_type=draft.source_type or "",
        submit_mode="submit",
    )
    return build_flow_context(spec, draft)


def _lookup_my_contracts(browser, draft: ContractDraft) -> list[str]:
    """进起草前查「我的合同」。命中行的合同号原样返回，不取最新一条。"""
    from contract_number import (
        _open_my_contracts,
        _scrape_my_contract_rows,
        _search_my_contracts,
    )

    ctx = _flow_context(draft)
    _open_my_contracts(browser, ctx)
    _search_my_contracts(
        browser,
        contract_lookup_title(draft),
        (draft.customer_code or "").strip(),
    )
    rows = _scrape_my_contract_rows(browser)
    return [str(row.get("no") or "") for row in rows]


def _create_and_read_number(browser, draft: ContractDraft) -> ContractOutcome:
    """0 条时走 S06–S12。提交后读不到号则停在处理中，下一班只查号。"""
    _pull_back_to_draft(browser)
    ctx = _flow_context(draft)

    def run() -> str:
        """在已打开的浏览器里跑起草并返回合同号。"""
        return run_contract_create_flow(browser, ctx)

    outcome = outcome_from_run(run)
    if outcome.kind == KIND_OK and (outcome.contract_no or "").strip():
        return outcome
    if outcome.kind == KIND_DILIGENCE:
        return outcome
    if outcome.kind == KIND_FAIL and "未读取到真实合同编号" in (outcome.reason or ""):
        return ContractOutcome(KIND_HOLD, None, LOOKUP_ONLY_RESULT, outcome.error_text)
    return outcome


def production_runner(
    browser: ApaBrowserAdapter,
    draft: ContractDraft,
    *,
    find_contracts=None,
    create=None,
) -> ContractOutcome:
    """每个合单组先拉回起草页，再查「我的合同」。

    查重三态：0 条才走 S06–S12；恰好 1 条只落表 4，不起草第二份；
    多条停在 process_status=3，不新建，也不取最新一条。
    标题是客商名 + 「采购协议」 + 签订日，不含货主和起止日。标题和客商不是合单键。
    提交后读不到号也停在 3，下一班只查号。
    """
    if find_contracts is None:
        _pull_back_to_draft(browser)
        numbers = _lookup_my_contracts(browser, draft)
    else:
        numbers = list(find_contracts(browser, draft))
    decided = decide_existing_contracts(
        numbers,
        lookup_only=bool(getattr(draft, "lookup_only", False)),
    )
    if decided is not None:
        return decided
    if create is None:
        return _create_and_read_number(browser, draft)
    number = (create(browser, draft) or "").strip()
    if number:
        return ContractOutcome(KIND_OK, number, None)
    return ContractOutcome(KIND_HOLD, None, LOOKUP_ONLY_RESULT)


def main(argv: list[str] | None = None, repo=None, runner=None) -> int:
    """领表 3、按供应商合单录合同、写表 4。有失败则进程退出码 1。

    不传 --limit 时最多领 10 行。传入 repo 和 runner 时不打开浏览器。
    """
    args = parse_args(argv)
    load_job_env(Path(__file__).resolve().parent)
    if repo is None:
        repo = OracleContractRepo.from_env()
    if runner is None:
        browser = ApaBrowserAdapter(url=CONTRACT_URL, flow="CONTRACT_CREATE")
        runner = lambda draft: production_runner(browser, draft)
    summary = run_batch(repo, runner=runner, limit=args.limit)
    print(
        f"claimed={summary.claimed} groups={summary.groups} "
        f"ok={summary.ok} failed={summary.failed}"
    )
    return 0 if summary.failed == 0 else 1


if __name__ == "__main__":
    raise SystemExit(main())