"""验证明细行「整行不跨页」：构造长名称明细，逐页检查每条记录是否完整落在同一页。

判定方法：每条记录的产品名称/型号中嵌入唯一 ASCII 标记——
  产品名称：开头 "S{nn}" + 长文本 + 结尾 "E{nn}"
  型号：    开头 "M{nn}" + 长文本 + 结尾 "N{nn}"
同一记录的开头标记与结尾标记必然落在不同的折行上。
若整行被跨页拆开，则开头标记在某页、结尾标记在另一页 → 被抓到。
（ASCII 字形在 simhei 中存在，避免生僻字缺字形问题。）
"""
from __future__ import annotations

import sys
from pathlib import Path

PROJECT_ROOT = Path(__file__).resolve().parent.parent.parent
sys.path.insert(0, str(PROJECT_ROOT))

from reportbro import Report  # noqa: E402
from core.fonts import additional_fonts  # noqa: E402
import fitz  # noqa: E402

import reports.sign_receipt._build_template as T  # noqa: E402

LONG = "（长文本测试内容用于触发产品名称折行显示效果以验证分页时整行保持完整不被拆开到两页之间）"
N = 28
items = []
for i in range(1, N + 1):
    nn = f"{i:02d}"
    pname = f"S{nn}产品名称{LONG}E{nn}"
    model = f"M{nn}型号标识{LONG}N{nn}"
    items.append({
        "seq": str(i),
        "product_name": pname,
        "model": model,
        "range_": "0~100MPa",
        "qty": "12",
        "paichan_order": f"R{nn}/ORD{nn}",
        "box_no": f"B{nn}",
    })

ctx = {
    "receipt_no": "TESTKEEPTOGETHER",
    "seq": 1,
    "receipt_date": "2026-08-03",
    "shipper_name": "发货单位甲",
    "shipper_address": "北京市朝阳区建国路88号",
    "shipper_phone": "010-88886666",
    "receiver_name": "收货人乙",
    "receiver_address": "上海市浦东新区张江路99号",
    "receiver_phone": "021-66668888",
    "customer_order_no": "CUST-001",
    "customer_total_no": "TOTAL-001",
    "transport_mode": "公路运输",
    "ship_date": "2026-08-03",
    "sign_date": "2026-08-03",
    "signed_by": "收货人",
    "maker": "王制单",
    "receipt_remark": "备注测试",
    "total_qty": N * 12,
    "total_boxes": N,
    "items": items,
}

report_def = T.build_report_definition(ctx)
report = Report(report_definition=report_def, data=ctx, additional_fonts=additional_fonts())
if report.errors:
    print("❌ 模板渲染错误:", report.errors)
    sys.exit(1)

out = PROJECT_ROOT / "out" / "verify_keep_together.pdf"
report.generate_pdf(str(out))
print(f"✅ 已生成：{out}")

doc = fitz.open(str(out))
pages_text = [" ".join(w[4] for w in pg.get_text("words")) for pg in doc]

problems = []
for i in range(1, N + 1):
    nn = f"{i:02d}"
    s, e = f"S{nn}", f"E{nn}"   # 产品名称 头/尾标记
    m, n = f"M{nn}", f"N{nn}"   # 型号 头/尾标记
    for a, b, label in [(s, e, "产品名称"), (m, n, "型号")]:
        pa = [p + 1 for p, t in enumerate(pages_text) if a in t]
        pb = [p + 1 for p, t in enumerate(pages_text) if b in t]
        if set(pa) != set(pb):
            problems.append((i, nn, label, f"头{a}页={pa} 尾{b}页={pb}"))

print(f"总页数：{doc.page_count}，明细 {N} 条")
if problems:
    print("❌ 发现跨页拆行的记录：")
    for p in problems:
        print("   ", p)
    doc.close()
    sys.exit(1)
else:
    print(f"✅ 所有 {N} 条记录的「头/尾标记」均共页，无跨页拆行。"
          f"（产品名称、型号的长文本折行均随整行一起移动）")
    doc.close()