"""Theme stylesheets for CmdForge GUI."""

from pathlib import Path

# Light theme (default)
LIGHT_THEME = """
/* Main Window */
QMainWindow {
    background-color: #f5f5f5;
}

/* Sidebar */
#sidebar {
    background-color: #2d3748;
    border: none;
    min-width: 180px;
    max-width: 180px;
}

#sidebar::item {
    color: #e2e8f0;
    padding: 12px 16px;
    border: none;
    border-left: 3px solid transparent;
}

#sidebar::item:selected {
    background-color: #4a5568;
    border-left: 3px solid #667eea;
    color: white;
}

#sidebar::item:hover:!selected {
    background-color: #3d4a5c;
}

/* Content area */
QWidget#content_area {
    background-color: #f7fafc;
}

/* Buttons */
QPushButton {
    background-color: #667eea;
    color: white;
    border: none;
    border-radius: 6px;
    padding: 8px 16px;
    font-weight: 500;
    min-height: 32px;
}

QPushButton:hover {
    background-color: #5a67d8;
}

QPushButton:pressed {
    background-color: #4c51bf;
}

QPushButton:disabled {
    background-color: #a0aec0;
}

QPushButton#secondary {
    background-color: #e2e8f0;
    color: #4a5568;
}

QPushButton#secondary:hover {
    background-color: #cbd5e0;
}

QPushButton#danger {
    background-color: #e53e3e;
}

QPushButton#danger:hover {
    background-color: #c53030;
}

/* View toggle buttons */
QPushButton#viewToggle {
    background-color: #e2e8f0;
    color: #4a5568;
    border-radius: 4px;
    padding: 6px 12px;
    min-height: 24px;
    min-width: 60px;
}

QPushButton#viewToggle:checked {
    background-color: #667eea;
    color: white;
}

QPushButton#viewToggle:hover:!checked {
    background-color: #cbd5e0;
}

/* Input fields */
QLineEdit, QTextEdit, QPlainTextEdit {
    border: 1px solid #e2e8f0;
    border-radius: 6px;
    padding: 8px 12px;
    background-color: white;
    selection-background-color: #667eea;
}

QLineEdit:focus, QTextEdit:focus, QPlainTextEdit:focus {
    border-color: #667eea;
    outline: none;
}

/* Combo boxes */
QComboBox {
    border: 1px solid #e2e8f0;
    border-radius: 6px;
    padding: 8px 12px;
    background-color: white;
    min-height: 20px;
}

QComboBox:focus {
    border-color: #667eea;
}

QComboBox::drop-down {
    border: none;
    width: 24px;
}

QComboBox::down-arrow {
    image: none;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 6px solid #718096;
    margin-right: 8px;
}

QComboBox QAbstractItemView {
    border: 1px solid #e2e8f0;
    background-color: white;
    selection-background-color: #667eea;
}

/* Lists and Trees */
QListWidget, QTreeWidget, QTableWidget {
    border: 1px solid #e2e8f0;
    border-radius: 6px;
    background-color: white;
    outline: none;
}

QListWidget::item, QTreeWidget::item {
    padding: 8px 12px;
    border: none;
}

QListWidget::item:selected, QTreeWidget::item:selected {
    background-color: #667eea;
    color: white;
}

QListWidget::item:hover:!selected, QTreeWidget::item:hover:!selected {
    background-color: #edf2f7;
}

/* Table Widget */
QTableWidget {
    gridline-color: #e2e8f0;
}

QTableWidget::item {
    padding: 8px;
}

QTableWidget::item:selected {
    background-color: #667eea;
    color: white;
}

QHeaderView::section {
    background-color: #f7fafc;
    padding: 8px 12px;
    border: none;
    border-bottom: 1px solid #e2e8f0;
    font-weight: 600;
    color: #4a5568;
}

/* Group boxes */
QGroupBox {
    font-weight: 600;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    margin-top: 12px;
    padding-top: 12px;
    background-color: white;
}

QGroupBox::title {
    subcontrol-origin: margin;
    subcontrol-position: top left;
    left: 12px;
    padding: 0 8px;
    color: #2d3748;
}

/* Labels */
QLabel {
    color: #2d3748;
}

QLabel#heading {
    font-size: 18px;
    font-weight: 600;
    color: #1a202c;
}

QLabel#subheading {
    font-size: 14px;
    color: #718096;
}

QLabel#label {
    font-weight: 500;
    color: #4a5568;
}

QLabel#sectionHeading {
    font-weight: 600;
    font-size: 13px;
    color: #2d3748;
}

/* Scrollbars */
QScrollBar:vertical {
    background-color: #f7fafc;
    width: 12px;
    border-radius: 6px;
}

QScrollBar::handle:vertical {
    background-color: #cbd5e0;
    border-radius: 6px;
    min-height: 30px;
}

QScrollBar::handle:vertical:hover {
    background-color: #a0aec0;
}

QScrollBar::add-line:vertical, QScrollBar::sub-line:vertical {
    height: 0;
}

QScrollBar:horizontal {
    background-color: #f7fafc;
    height: 12px;
    border-radius: 6px;
}

QScrollBar::handle:horizontal {
    background-color: #cbd5e0;
    border-radius: 6px;
    min-width: 30px;
}

QScrollBar::handle:horizontal:hover {
    background-color: #a0aec0;
}

QScrollBar::add-line:horizontal, QScrollBar::sub-line:horizontal {
    width: 0;
}

/* Status bar */
QStatusBar {
    background-color: #f7fafc;
    border-top: 1px solid #e2e8f0;
    color: #718096;
}

/* Splitter */
QSplitter::handle {
    background-color: #e2e8f0;
}

QSplitter::handle:horizontal {
    width: 2px;
}

QSplitter::handle:vertical {
    height: 2px;
}

/* Tabs */
QTabWidget::pane {
    border: 1px solid #e2e8f0;
    border-radius: 6px;
    background-color: white;
}

QTabBar::tab {
    background-color: #edf2f7;
    border: 1px solid #e2e8f0;
    border-bottom: none;
    padding: 8px 16px;
    margin-right: 2px;
    border-top-left-radius: 6px;
    border-top-right-radius: 6px;
}

QTabBar::tab:selected {
    background-color: white;
    border-bottom: 1px solid white;
}

QTabBar::tab:hover:!selected {
    background-color: #e2e8f0;
}

/* Dialogs */
QDialog {
    background-color: #f7fafc;
}

/* Message boxes */
QMessageBox {
    background-color: #f7fafc;
}

QMessageBox QPushButton {
    min-width: 80px;
}

/* Tool tips */
QToolTip {
    background-color: #2d3748;
    color: white;
    border: none;
    padding: 6px 10px;
    border-radius: 4px;
}

/* Progress bar */
QProgressBar {
    border: 1px solid #e2e8f0;
    border-radius: 6px;
    background-color: #edf2f7;
    text-align: center;
    height: 20px;
}

QProgressBar::chunk {
    background-color: #667eea;
    border-radius: 5px;
}

/* Spin boxes */
QSpinBox, QDoubleSpinBox {
    border: 1px solid #e2e8f0;
    border-radius: 6px;
    padding: 8px 12px;
    background-color: white;
}

QSpinBox:focus, QDoubleSpinBox:focus {
    border-color: #667eea;
}

/* Check boxes and radio buttons */
QCheckBox, QRadioButton {
    spacing: 8px;
    color: #2d3748;
}

QCheckBox::indicator, QRadioButton::indicator {
    width: 18px;
    height: 18px;
}

QCheckBox::indicator:unchecked {
    border: 2px solid #cbd5e0;
    border-radius: 4px;
    background-color: white;
}

QCheckBox::indicator:checked {
    border: 2px solid #667eea;
    border-radius: 4px;
    background-color: #667eea;
}

QRadioButton::indicator:unchecked {
    border: 2px solid #cbd5e0;
    border-radius: 9px;
    background-color: white;
}

QRadioButton::indicator:checked {
    border: 2px solid #667eea;
    border-radius: 9px;
    background-color: #667eea;
}

/* Menu bar */
QMenuBar {
    background-color: #f7fafc;
    border-bottom: 1px solid #e2e8f0;
}

QMenuBar::item {
    padding: 6px 12px;
    background-color: transparent;
}

QMenuBar::item:selected {
    background-color: #e2e8f0;
}

QMenu {
    background-color: white;
    border: 1px solid #e2e8f0;
}

QMenu::item {
    padding: 8px 24px;
}

QMenu::item:selected {
    background-color: #667eea;
    color: white;
}

QMenu::separator {
    height: 1px;
    background-color: #e2e8f0;
    margin: 4px 8px;
}
"""

# Dark theme
DARK_THEME = """
/* Main Window */
QMainWindow {
    background-color: #1a1a2e;
}

/* Sidebar */
#sidebar {
    background-color: #16213e;
    border: none;
    min-width: 180px;
    max-width: 180px;
}

#sidebar::item {
    color: #a0aec0;
    padding: 12px 16px;
    border: none;
    border-left: 3px solid transparent;
}

#sidebar::item:selected {
    background-color: #1f3460;
    border-left: 3px solid #667eea;
    color: white;
}

#sidebar::item:hover:!selected {
    background-color: #1a2d50;
}

/* Content area */
QWidget#content_area {
    background-color: #1a1a2e;
}

/* Buttons */
QPushButton {
    background-color: #667eea;
    color: white;
    border: none;
    border-radius: 6px;
    padding: 8px 16px;
    font-weight: 500;
    min-height: 32px;
}

QPushButton:hover {
    background-color: #7c8ff0;
}

QPushButton:pressed {
    background-color: #5a67d8;
}

QPushButton:disabled {
    background-color: #4a5568;
    color: #718096;
}

QPushButton#secondary {
    background-color: #2d3748;
    color: #e2e8f0;
}

QPushButton#secondary:hover {
    background-color: #4a5568;
}

QPushButton#danger {
    background-color: #e53e3e;
}

QPushButton#danger:hover {
    background-color: #fc5c65;
}

/* View toggle buttons */
QPushButton#viewToggle {
    background-color: #2d3748;
    color: #a0aec0;
    border-radius: 4px;
    padding: 6px 12px;
    min-height: 24px;
    min-width: 60px;
}

QPushButton#viewToggle:checked {
    background-color: #667eea;
    color: white;
}

QPushButton#viewToggle:hover:!checked {
    background-color: #4a5568;
}

/* Input fields */
QLineEdit, QTextEdit, QPlainTextEdit {
    border: 1px solid #4a5568;
    border-radius: 6px;
    padding: 8px 12px;
    background-color: #2d3748;
    color: #e2e8f0;
    selection-background-color: #667eea;
}

QLineEdit:focus, QTextEdit:focus, QPlainTextEdit:focus {
    border-color: #667eea;
    outline: none;
}

/* Combo boxes */
QComboBox {
    border: 1px solid #4a5568;
    border-radius: 6px;
    padding: 8px 12px;
    background-color: #2d3748;
    color: #e2e8f0;
    min-height: 20px;
}

QComboBox:focus {
    border-color: #667eea;
}

QComboBox::drop-down {
    border: none;
    width: 24px;
}

QComboBox::down-arrow {
    image: none;
    border-left: 5px solid transparent;
    border-right: 5px solid transparent;
    border-top: 6px solid #a0aec0;
    margin-right: 8px;
}

QComboBox QAbstractItemView {
    border: 1px solid #4a5568;
    background-color: #2d3748;
    color: #e2e8f0;
    selection-background-color: #667eea;
}

/* Lists and Trees */
QListWidget, QTreeWidget, QTableWidget {
    border: 1px solid #4a5568;
    border-radius: 6px;
    background-color: #2d3748;
    color: #e2e8f0;
    outline: none;
}

QListWidget::item, QTreeWidget::item {
    padding: 8px 12px;
    border: none;
}

QListWidget::item:selected, QTreeWidget::item:selected {
    background-color: #667eea;
    color: white;
}

QListWidget::item:hover:!selected, QTreeWidget::item:hover:!selected {
    background-color: #4a5568;
}

/* Table Widget */
QTableWidget {
    gridline-color: #4a5568;
}

QTableWidget::item {
    padding: 8px;
}

QTableWidget::item:selected {
    background-color: #667eea;
    color: white;
}

QHeaderView::section {
    background-color: #1a1a2e;
    padding: 8px 12px;
    border: none;
    border-bottom: 1px solid #4a5568;
    font-weight: 600;
    color: #a0aec0;
}

/* Group boxes */
QGroupBox {
    font-weight: 600;
    border: 1px solid #4a5568;
    border-radius: 8px;
    margin-top: 12px;
    padding-top: 12px;
    background-color: #2d3748;
    color: #e2e8f0;
}

QGroupBox::title {
    subcontrol-origin: margin;
    subcontrol-position: top left;
    left: 12px;
    padding: 0 8px;
    color: #e2e8f0;
}

/* Labels */
QLabel {
    color: #e2e8f0;
}

QLabel#heading {
    font-size: 18px;
    font-weight: 600;
    color: #ffffff;
}

QLabel#subheading {
    font-size: 14px;
    color: #a0aec0;
}

QLabel#label {
    font-weight: 500;
    color: #cbd5e0;
}

QLabel#sectionHeading {
    font-weight: 600;
    font-size: 13px;
    color: #e2e8f0;
}

/* Scrollbars */
QScrollBar:vertical {
    background-color: #1a1a2e;
    width: 12px;
    border-radius: 6px;
}

QScrollBar::handle:vertical {
    background-color: #4a5568;
    border-radius: 6px;
    min-height: 30px;
}

QScrollBar::handle:vertical:hover {
    background-color: #718096;
}

QScrollBar::add-line:vertical, QScrollBar::sub-line:vertical {
    height: 0;
}

QScrollBar:horizontal {
    background-color: #1a1a2e;
    height: 12px;
    border-radius: 6px;
}

QScrollBar::handle:horizontal {
    background-color: #4a5568;
    border-radius: 6px;
    min-width: 30px;
}

QScrollBar::handle:horizontal:hover {
    background-color: #718096;
}

QScrollBar::add-line:horizontal, QScrollBar::sub-line:horizontal {
    width: 0;
}

/* Status bar */
QStatusBar {
    background-color: #16213e;
    border-top: 1px solid #4a5568;
    color: #a0aec0;
}

/* Splitter */
QSplitter::handle {
    background-color: #4a5568;
}

QSplitter::handle:horizontal {
    width: 2px;
}

QSplitter::handle:vertical {
    height: 2px;
}

/* Tabs */
QTabWidget::pane {
    border: 1px solid #4a5568;
    border-radius: 6px;
    background-color: #2d3748;
}

QTabBar::tab {
    background-color: #1a1a2e;
    border: 1px solid #4a5568;
    border-bottom: none;
    padding: 8px 16px;
    margin-right: 2px;
    border-top-left-radius: 6px;
    border-top-right-radius: 6px;
    color: #a0aec0;
}

QTabBar::tab:selected {
    background-color: #2d3748;
    border-bottom: 1px solid #2d3748;
    color: #e2e8f0;
}

QTabBar::tab:hover:!selected {
    background-color: #16213e;
}

/* Dialogs */
QDialog {
    background-color: #1a1a2e;
}

/* Message boxes */
QMessageBox {
    background-color: #1a1a2e;
}

QMessageBox QPushButton {
    min-width: 80px;
}

/* Tool tips */
QToolTip {
    background-color: #4a5568;
    color: white;
    border: none;
    padding: 6px 10px;
    border-radius: 4px;
}

/* Progress bar */
QProgressBar {
    border: 1px solid #4a5568;
    border-radius: 6px;
    background-color: #2d3748;
    text-align: center;
    height: 20px;
    color: #e2e8f0;
}

QProgressBar::chunk {
    background-color: #667eea;
    border-radius: 5px;
}

/* Spin boxes */
QSpinBox, QDoubleSpinBox {
    border: 1px solid #4a5568;
    border-radius: 6px;
    padding: 8px 12px;
    background-color: #2d3748;
    color: #e2e8f0;
}

QSpinBox:focus, QDoubleSpinBox:focus {
    border-color: #667eea;
}

/* Check boxes and radio buttons */
QCheckBox, QRadioButton {
    spacing: 8px;
    color: #e2e8f0;
}

QCheckBox::indicator, QRadioButton::indicator {
    width: 18px;
    height: 18px;
}

QCheckBox::indicator:unchecked {
    border: 2px solid #4a5568;
    border-radius: 4px;
    background-color: #2d3748;
}

QCheckBox::indicator:checked {
    border: 2px solid #667eea;
    border-radius: 4px;
    background-color: #667eea;
}

QRadioButton::indicator:unchecked {
    border: 2px solid #4a5568;
    border-radius: 9px;
    background-color: #2d3748;
}

QRadioButton::indicator:checked {
    border: 2px solid #667eea;
    border-radius: 9px;
    background-color: #667eea;
}

/* Menu bar */
QMenuBar {
    background-color: #16213e;
    border-bottom: 1px solid #4a5568;
    color: #e2e8f0;
}

QMenuBar::item {
    padding: 6px 12px;
    background-color: transparent;
}

QMenuBar::item:selected {
    background-color: #1f3460;
}

QMenu {
    background-color: #2d3748;
    border: 1px solid #4a5568;
    color: #e2e8f0;
}

QMenu::item {
    padding: 8px 24px;
}

QMenu::item:selected {
    background-color: #667eea;
    color: white;
}

QMenu::separator {
    height: 1px;
    background-color: #4a5568;
    margin: 4px 8px;
}
"""

# Available themes
THEMES = {
    "light": LIGHT_THEME,
    "dark": DARK_THEME,
}

# For backwards compatibility
STYLESHEET = LIGHT_THEME


def get_custom_theme_path() -> Path:
    """Get path to custom theme file."""
    return Path.home() / ".cmdforge" / "theme.qss"


def load_theme(theme_name: str = "light") -> str:
    """
    Load a theme stylesheet.

    Args:
        theme_name: Name of theme ("light", "dark") or "custom" for external file

    Returns:
        The stylesheet string
    """
    # Check for custom theme file first
    custom_path = get_custom_theme_path()
    if theme_name == "custom" and custom_path.exists():
        try:
            return custom_path.read_text()
        except Exception:
            pass  # Fall back to light theme

    # Return built-in theme
    return THEMES.get(theme_name, LIGHT_THEME)


def get_available_themes() -> list:
    """Get list of available theme names."""
    themes = list(THEMES.keys())
    if get_custom_theme_path().exists():
        themes.append("custom")
    return themes