# -*- coding: utf-8 -*-
"""问题 3 取证：右侧栏 bash 层「参数/输出」框的滚动条 QSS 现状（离屏截图 + 几何/样式打印）"""
import os
import sys
import tempfile

sys.path.insert(0, os.path.join(os.path.dirname(__file__), ".."))
os.environ.setdefault("QT_QPA_PLATFORM", "offscreen")
os.environ["QTWEBENGINE_CHROMIUM_FLAGS"] = "--disable-gpu"
os.environ.setdefault("PYTHONIOENCODING", "utf-8")

import core.db_manager as _dbm  # noqa: E402
_dbm._DEFAULT_DB = os.path.join(tempfile.gettempdir(), f"haocode_q3_{os.getpid()}.db")
_cfg = os.path.join(tempfile.gettempdir(), f"haocode_q3_{os.getpid()}.json")
open(_cfg, "w", encoding="utf-8").write('{"providers": {}}')
os.environ["HAOCODE_CONFIG_FILE"] = _cfg

from PyQt6.QtWidgets import QApplication  # noqa: E402
from PyQt6.QtTest import QTest  # noqa: E402
from ui.views.main_window import MainWindow  # noqa: E402

app = QApplication(sys.argv)
w = MainWindow()
w.resize(1400, 950)
w.show()
for _ in range(40):
    app.processEvents()
    QTest.qWait(20)

p = w.bash_panel
p.expand_btn.click()
for _ in range(30):
    app.processEvents()
    QTest.qWait(20)

# 造一个「已完成 + 长输出」的层（长输出会把垂直/水平滚动条都逼出来）
long_cmd = "python train.py --epochs 300 --batch-size 64 --lr 0.0001 --data /data/detr/annotations.json"
long_out = "\n".join(
    f"[{i:04d}] epoch loss=0.{i % 9}{i % 7} lr=0.0001 mAP=0.{40 + i % 20} "
    f"very_long_tail_to_force_horizontal_scrollbar_{i}"
    for i in range(120))
p.on_started("q3_lay", "bash", {"command": long_cmd})
p.on_finished("q3_lay", "bash", True, long_out)
for _ in range(20):
    app.processEvents()
    QTest.qWait(20)

lay = p._layers["q3_lay"]
lay.toggle()                      # 展开层 → 显示「参数」「输出」两块
for _ in range(20):
    app.processEvents()
    QTest.qWait(20)

for nm, box in (("参数 arg_box", lay.arg_box), ("输出 out_box", lay.out_box)):
    vb = box.verticalScrollBar()
    hb = box.horizontalScrollBar()
    print(f"--- {nm}")
    print(f"    objectName={box.objectName()}  尺寸={box.width()}x{box.height()}")
    print(f"    垂直滚动条: 可见={vb.isVisible()} 宽={vb.width()} 需要={vb.maximum() > 0}")
    print(f"    水平滚动条: 可见={hb.isVisible()} 高={hb.height()} 需要={hb.maximum() > 0}")
    print(f"    box 自身 stylesheet = {box.styleSheet()!r}")
    print(f"    box 背景角色 = {box.palette().base().color().name()}")

img = lay.grab().toImage()
out = os.path.join(os.path.dirname(os.path.abspath(__file__)), "_tmp_q3_layer.png")
img.save(out)
print("\n层截图 ->", out, img.width(), "x", img.height())

# 再抓取面板整块（看滚动条在面板里的观感）
img2 = p.grab().toImage()
out2 = os.path.join(os.path.dirname(os.path.abspath(__file__)), "_tmp_q3_panel.png")
img2.save(out2)
print("面板截图 ->", out2, img2.width(), "x", img2.height())

os.remove(_cfg)