"""Shared Qt theme for the laser-control desktop UI."""

from __future__ import annotations

from PyQt6.QtGui import QColor, QPalette
from PyQt6.QtWidgets import QApplication, QStyleFactory


_STYLESHEET = """
QMainWindow {
    background-color: #edf2f7;
}

QWidget {
    color: #17212b;
    font-size: 13px;
}

QGroupBox {
    background-color: #ffffff;
    border: 1px solid #d8e0ea;
    border-radius: 14px;
    margin-top: 14px;
    padding: 12px;
}

QGroupBox::title {
    subcontrol-origin: margin;
    left: 12px;
    padding: 0 6px;
    color: #506274;
    font-weight: 600;
}

QPushButton {
    background-color: #f7fafc;
    border: 1px solid #c8d3df;
    border-radius: 8px;
    padding: 7px 12px;
}

QPushButton:hover {
    background-color: #edf3f9;
}

QPushButton:pressed {
    background-color: #e2ebf4;
}

QPushButton#primaryButton {
    background-color: #1f6feb;
    border-color: #1f6feb;
    color: #ffffff;
    font-weight: 600;
}

QPushButton#primaryButton:hover {
    background-color: #2b7bf7;
}

QPushButton:disabled {
    color: #95a3b3;
    background-color: #f3f6f9;
    border-color: #dde5ee;
}

QLabel#captionLabel {
    color: #6b7b8d;
}

QLabel#valueLabel {
    color: #1f2937;
    font-weight: 600;
}

QLabel#statusOk {
    color: #156f3d;
    font-weight: 700;
}

QLabel#statusError {
    color: #b42318;
    font-weight: 700;
}

QDoubleSpinBox,
QSpinBox,
QComboBox,
QLineEdit,
QTextEdit,
QPlainTextEdit {
    background-color: #ffffff;
    border: 1px solid #c8d3df;
    border-radius: 8px;
    padding: 5px 8px;
}

QDoubleSpinBox:focus,
QSpinBox:focus,
QComboBox:focus,
QLineEdit:focus,
QTextEdit:focus,
QPlainTextEdit:focus {
    border: 1px solid #1f6feb;
}

QTextEdit#logBox,
QPlainTextEdit {
    font-family: "DejaVu Sans Mono";
    font-size: 12px;
    background-color: #fbfdff;
}

QTabWidget::pane {
    border: 1px solid #d8e0ea;
    border-radius: 10px;
    background-color: #f8fbfe;
    top: -1px;
}

QTabBar::tab {
    background-color: #eef4fa;
    border: 1px solid #d8e0ea;
    border-bottom: none;
    padding: 7px 12px;
    margin-right: 4px;
    border-top-left-radius: 8px;
    border-top-right-radius: 8px;
}

QTabBar::tab:selected {
    background-color: #f8fbfe;
    color: #1f2937;
    font-weight: 600;
}
"""


def apply_theme(app: QApplication) -> None:
    """Apply a light desktop theme aligned with the radar_system UI style."""
    app.setStyle(QStyleFactory.create("Fusion"))

    palette = QPalette()
    palette.setColor(QPalette.ColorRole.Window, QColor("#edf2f7"))
    palette.setColor(QPalette.ColorRole.WindowText, QColor("#17212b"))
    palette.setColor(QPalette.ColorRole.Base, QColor("#ffffff"))
    palette.setColor(QPalette.ColorRole.AlternateBase, QColor("#f6f9fc"))
    palette.setColor(QPalette.ColorRole.ToolTipBase, QColor("#ffffff"))
    palette.setColor(QPalette.ColorRole.ToolTipText, QColor("#17212b"))
    palette.setColor(QPalette.ColorRole.Text, QColor("#17212b"))
    palette.setColor(QPalette.ColorRole.Button, QColor("#f7fafc"))
    palette.setColor(QPalette.ColorRole.ButtonText, QColor("#17212b"))
    palette.setColor(QPalette.ColorRole.Highlight, QColor("#1f6feb"))
    palette.setColor(QPalette.ColorRole.HighlightedText, QColor("#ffffff"))
    app.setPalette(palette)
    app.setStyleSheet(_STYLESHEET)