from __future__ import annotations

import os

os.environ.setdefault("QT_QPA_PLATFORM", "offscreen")

import pytest
from PySide6.QtCore import QEvent
from PySide6.QtGui import QFont
from PySide6.QtWidgets import QApplication, QLabel, QToolButton, QVBoxLayout, QWidget

from doctor_workstation.ui.diagnosis_index_widgets import DiagnosisTableHost
from doctor_workstation.ui.reception_style import body_family


@pytest.fixture(scope="module")
def application() -> QApplication:
    return QApplication.instance() or QApplication([])


@pytest.mark.parametrize("tech_blue", [False, True])
@pytest.mark.parametrize("size", [(1024, 640), (1710, 920)])
@pytest.mark.parametrize("with_channel", [False, True])
def test_public_video_status_fits_frozen_cell_with_inherited_item_padding(
    application: QApplication, tech_blue: bool, size: tuple[int, int],
    with_channel: bool,
) -> None:
    root = QWidget()
    font = QFont(body_family())
    font.setPixelSize(13)
    root.setFont(font)
    # Match GLOBAL_QSS without changing the application's theme between tests.
    root.setStyleSheet("QTableView::item { padding: 6px 8px; border-bottom: 1px solid #E1E9F4; }")
    layout = QVBoxLayout(root)
    host = DiagnosisTableHost(
        parent=root, tech_blue=tech_blue,
        action_policy={"video_call": True, "view": True, "edit": True},
        video_entry_allowed=lambda _record: False,
    )
    layout.addWidget(host)
    statuses = [
        ("ended", "视频已结束 · 10-17 14:19"),
        ("ended", "视频已结束 · 10-17 14:27"),
        ("ended", "视频已结束"),
        ("live", "通话中"),
        ("pending_room", "接通中"),
        ("missed", "上次通话未接听"),
        ("cancelled", "上次通话已取消"),
        ("none", "—"),
    ]
    rows = [
        {
            "id": index + 1, "patient_id": index + 100, "patient_name": "测试患者",
            "gender": 1, "age": 50, "has_appointment": 1,
            "appointment_id": index + 200, "appointment_status": 1,
            "appointment_type": "video",
            "latest_appointment_channel_text": "自媒体4H" if with_channel else "",
            "appointments": [{"id": index + 200, "status": 1, "doctor_name": "测试医生",
                              "time_text": "2026-10-17 14:15", "appointment_type": "video"}],
            "video_call_hint": {"state": state, "label": text},
        }
        for index, (state, text) in enumerate(statuses * 4)
    ]
    try:
        host.set_rows(rows)
        root.resize(*size)
        root.show()
        for _ in range(4):
            application.processEvents()
        for index, (_state, text) in enumerate(statuses):
            cell = host.fixed.indexWidget(host.model.index(index, 10))
            assert not cell.findChildren(QToolButton)
            label = cell.findChild(QLabel)
            assert label is not None
            assert label.height() >= label.heightForWidth(label.width())
            assert cell.rect().contains(label.geometry())
            assert abs(label.geometry().center().y() - cell.rect().center().y()) <= 1
            assert label.toolTip() == text
            if " · " in text:
                assert label.text() == text.replace(" · ", "\n")
                assert label.fontMetrics().horizontalAdvance("10-17 14:19") <= label.width()
            assert cell.width() >= host.fixed.columnWidth(10) - 2
        host.main.horizontalScrollBar().setValue(host.main.horizontalScrollBar().maximum())
        for fraction in (2, 3):
            host.main.verticalScrollBar().setValue(host.main.verticalScrollBar().maximum() // fraction)
            application.processEvents()
            assert host.fixed.verticalScrollBar().value() == host.main.verticalScrollBar().value()
            row = host.main.indexAt(host.main.viewport().rect().center()).row()
            assert row >= 0
            assert host.main.visualRect(host.model.index(row, 0)).top() == host.fixed.visualRect(
                host.model.index(row, 10)
            ).top()
    finally:
        root.close()
        root.deleteLater()
        application.sendPostedEvents(None, QEvent.Type.DeferredDelete)