"""Application-wide Qt palette and stylesheet configuration."""

from __future__ import annotations

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


_LIGHT_STYLESHEET = """
QMainWindow, QDialog {
    background-color: #f3f6fb;
}

QWidget {
    color: #1f2937;
    font-size: 13px;
}

QGroupBox {
    background-color: #ffffff;
    border: 1px solid #d7dee8;
    border-radius: 10px;
    margin-top: 14px;
    padding: 10px;
}

QGroupBox::title {
    subcontrol-origin: margin;
    left: 10px;
    padding: 0 6px;
    color: #526277;
    font-weight: 600;
}

QPushButton {
    background-color: #f8fafc;
    border: 1px solid #cad4e1;
    border-radius: 8px;
    padding: 7px 12px;
}

QPushButton:hover {
    background-color: #eef3f9;
}

QPushButton:pressed {
    background-color: #e4ebf4;
}

QPushButton:checked {
    background-color: #2f7ee6;
    border-color: #2f7ee6;
    color: #ffffff;
}

QPushButton:checked:hover {
    background-color: #3b8bf4;
}

QPushButton:disabled {
    color: #98a4b3;
    background-color: #f3f5f8;
    border-color: #dde4ec;
}

QPushButton#settingsToggleButton {
    min-width: 26px;
    max-width: 26px;
    padding: 6px 0px;
    border-radius: 7px;
    font-weight: 700;
}

QPushButton#sectionToggleButton {
    min-width: 84px;
    padding: 5px 10px;
    border-radius: 7px;
}

QLineEdit,
QPlainTextEdit,
QTextEdit,
QComboBox,
QSpinBox,
QDoubleSpinBox {
    background-color: #ffffff;
    border: 1px solid #c9d4e1;
    border-radius: 7px;
    padding: 5px 8px;
    selection-background-color: #cfe3ff;
}

QLineEdit:focus,
QPlainTextEdit:focus,
QTextEdit:focus,
QComboBox:focus,
QSpinBox:focus,
QDoubleSpinBox:focus {
    border: 1px solid #2f7ee6;
}

QTextEdit#runtimeLogBox {
    font-family: "DejaVu Sans Mono";
    font-size: 12px;
    padding: 6px 8px;
}

QComboBox::drop-down {
    border: none;
    width: 18px;
}

QScrollArea {
    border: none;
    background: transparent;
}

QLabel#statusLabel {
    color: #35507a;
    font-weight: 600;
    padding: 2px 1px;
}

QLabel#hintLabel {
    color: #6c7b8d;
}
"""


def apply_light_theme(app: QApplication) -> None:
    """Apply a minimal light theme shared by all windows."""
    app.setStyle(QStyleFactory.create("Fusion"))

    palette = QPalette()
    palette.setColor(QPalette.ColorRole.Window, QColor("#f3f6fb"))
    palette.setColor(QPalette.ColorRole.WindowText, QColor("#1f2937"))
    palette.setColor(QPalette.ColorRole.Base, QColor("#ffffff"))
    palette.setColor(QPalette.ColorRole.AlternateBase, QColor("#eef3f8"))
    palette.setColor(QPalette.ColorRole.ToolTipBase, QColor("#ffffff"))
    palette.setColor(QPalette.ColorRole.ToolTipText, QColor("#1f2937"))
    palette.setColor(QPalette.ColorRole.Text, QColor("#1f2937"))
    palette.setColor(QPalette.ColorRole.Button, QColor("#f8fafc"))
    palette.setColor(QPalette.ColorRole.ButtonText, QColor("#1f2937"))
    palette.setColor(QPalette.ColorRole.BrightText, QColor("#ffffff"))
    palette.setColor(QPalette.ColorRole.Link, QColor("#2f7ee6"))
    palette.setColor(QPalette.ColorRole.Highlight, QColor("#2f7ee6"))
    palette.setColor(QPalette.ColorRole.HighlightedText, QColor("#ffffff"))
    app.setPalette(palette)
    app.setStyleSheet(_LIGHT_STYLESHEET)