"""大批直通良率专用回刷脚本(gxerp)

只解析检验批的大批归属(BatchSt.zt_batch)并重算各大批的 直通_* 统计,
不重建批次的其他统计数据(那个用 correct_batchst.py)。

用法:
    python scripts/correct_zt_gxerp.py [起始日期] [--fresh]
    起始日期默认 2025-06-17; --fresh 清除大批已缓存的白料数, 强制重新回溯
"""
import os
import sys
import django

CUR_DIR = os.path.dirname(os.path.abspath(__file__))
BASE_DIR = os.path.dirname(CUR_DIR)
sys.path.insert(0, BASE_DIR)

os.environ.setdefault("DJANGO_SETTINGS_MODULE", "server.settings")
django.setup()

from datetime import datetime
from django.db.models import Q
from apps.wpm.models import BatchSt
from apps.wpm.scripts.batch_gxerp import resolve_zt_big, cal_zt_big
import json
from apps.utils.tools import MyJSONEncoder


def main(since: str = "2025-06-17", fresh: bool = False):
    qs = BatchSt.objects.filter(
        create_time__gte=datetime.strptime(since, "%Y-%m-%d"), version=1
    ).filter(
        Q(data__has_key="尺寸检验_日期") | Q(data__has_key="外观检验_日期")
    ).order_by("create_time")
    total = qs.count()
    print(f"检验批 {total} 个, 开始解析大批归属")

    bigs = []  # 保序去重
    seen = set()
    for ind, bs in enumerate(qs.iterator()):
        try:
            big = resolve_zt_big(bs, bs.data or {})
            if big and bs.zt_batch != big:
                bs.zt_batch = big
                bs.save(update_fields=["zt_batch"])
        except Exception as e:
            print(f"[{ind + 1}/{total}] {bs.batch} 归属解析失败: {e}")
            continue
        if big and big not in seen:
            seen.add(big)
            bigs.append(big)
        if (ind + 1) % 1000 == 0:
            print(f"归属解析 {ind + 1}/{total}")

    print(f"共 {len(bigs)} 个大批, 开始计算直通良率")
    for ind, big in enumerate(bigs):
        try:
            if fresh:
                big_bs = BatchSt.objects.filter(batch=big, version=1).first()
                if big_bs and "直通_白料数" in (big_bs.data or {}):
                    data = big_bs.data
                    data.pop("直通_白料数", None)
                    big_bs.data = json.loads(json.dumps(data, cls=MyJSONEncoder))
                    big_bs.save(update_fields=["data"])
            cal_zt_big(big)
        except Exception as e:
            print(f"{big} 计算失败: {e}")
        if (ind + 1) % 200 == 0:
            print(f"大批 {ind + 1}/{len(bigs)}")
    print("done")


if __name__ == "__main__":
    args = [a for a in sys.argv[1:] if a != "--fresh"]
    main(since=args[0] if args else "2025-06-17", fresh="--fresh" in sys.argv)