"""Dracula PRO (Van Helsing) inspired themes."""
from __future__ import annotations

from dataclasses import dataclass


@dataclass(frozen=True)
class Palette:
    name: str
    bg: str
    bg_secondary: str
    bg_input: str
    bg_button: str
    bg_button_hover: str
    bg_button_pressed: str
    border: str
    border_focus: str
    text: str
    text_dim: str
    text_bright: str
    accent: str
    accent_dim: str
    selection: str
    green: str
    green_bright: str
    orange: str
    pink: str
    purple: str
    red: str
    yellow: str
    tab_active: str
    tab_inactive: str
    scroll_handle: str
    scroll_hover: str
    log_rx: str
    log_tx: str
    log_info: str


# Dracula PRO Van Helsing palette
_D = dict(
    cyan="#80ffea", green="#8aff80", orange="#ffca80",
    pink="#ff80bf", purple="#9580ff", red="#ff9580",
    yellow="#ffff80", comment="#7970a9",
)

DARK = Palette(
    name="dark",
    bg="#1e2029",
    bg_secondary="#282a36",
    bg_input="#313442",
    bg_button="#414458",
    bg_button_hover="#515570",
    bg_button_pressed="#363949",
    border="#414458",
    border_focus=_D["cyan"],
    text="#f8f8f2",
    text_dim=_D["comment"],
    text_bright="#ffffff",
    accent=_D["cyan"],
    accent_dim="#2a4a50",
    selection="#44475a",
    green=_D["green"],
    green_bright="#50fa7b",
    orange=_D["orange"],
    pink=_D["pink"],
    purple=_D["purple"],
    red=_D["red"],
    yellow=_D["yellow"],
    tab_active="#1e2029",
    tab_inactive="#282a36",
    scroll_handle="#44475a",
    scroll_hover="#515570",
    log_rx=_D["green"],
    log_tx=_D["cyan"],
    log_info=_D["comment"],
)

LIGHT = Palette(
    name="light",
    bg="#ffffff",
    bg_secondary="#f4f4f8",
    bg_input="#ffffff",
    bg_button="#eeeef2",
    bg_button_hover="#dddde4",
    bg_button_pressed="#ccccd4",
    border="#d4d4dc",
    border_focus="#6c5ce7",
    text="#282a36",
    text_dim="#7970a9",
    text_bright="#1e2029",
    accent="#6c5ce7",
    accent_dim="#eae7fd",
    selection="#ddd8fd",
    green="#2ebc50",
    green_bright="#27ae60",
    orange="#e67e22",
    pink="#e84393",
    purple="#6c5ce7",
    red="#e74c3c",
    yellow="#f1c40f",
    tab_active="#ffffff",
    tab_inactive="#f4f4f8",
    scroll_handle="#c4c4cc",
    scroll_hover="#a4a4ac",
    log_rx="#1a8a3d",
    log_tx="#2944a8",
    log_info="#7970a9",
)


def build_stylesheet(p: Palette) -> str:
    return f"""
/* ── Dracula PRO Theme ────────────────────────────── */

* {{ outline: none; }}

QWidget {{
    background-color: {p.bg};
    color: {p.text};
    font-family: "Segoe UI", "SF Pro Text", sans-serif;
    font-size: 10pt;
}}

QMainWindow {{ background-color: {p.bg}; }}

/* ── Menu ─────────────────────────────────────────── */
QMenuBar {{
    background-color: {p.bg_secondary};
    color: {p.text};
    border-bottom: 1px solid {p.border};
    padding: 2px;
}}
QMenuBar::item {{ padding: 5px 12px; border-radius: 4px; }}
QMenuBar::item:selected {{ background-color: {p.selection}; }}
QMenu {{
    background-color: {p.bg_secondary};
    color: {p.text};
    border: 1px solid {p.border};
    border-radius: 8px;
    padding: 4px;
}}
QMenu::item {{ padding: 6px 28px 6px 16px; border-radius: 4px; }}
QMenu::item:selected {{ background-color: {p.accent}; color: {p.bg}; }}
QMenu::separator {{ height: 1px; background: {p.border}; margin: 4px 8px; }}

/* ── Tabs ─────────────────────────────────────────── */
QTabWidget::pane {{
    border: 1px solid {p.border};
    background: {p.bg};
    top: -1px;
}}
QTabBar {{ background: {p.bg_secondary}; qproperty-drawBase: 0; }}
QTabBar::tab {{
    background: {p.tab_inactive};
    color: {p.text_dim};
    padding: 7px 18px;
    border: none;
    border-bottom: 2px solid transparent;
    margin-right: 1px;
}}
QTabBar::tab:selected {{
    background: {p.tab_active};
    color: {p.accent};
    border-bottom: 2px solid {p.accent};
}}
QTabBar::tab:hover:!selected {{ color: {p.text}; background: {p.bg_button}; }}

/* ── GroupBox (Collapsible Card) ──────────────────── */
QGroupBox {{
    background-color: {p.bg_secondary};
    border: 1px solid {p.border};
    border-radius: 8px;
    margin-top: 14px;
    padding: 10px 8px 8px 8px;
    font-weight: 600;
}}
QGroupBox::title {{
    subcontrol-origin: margin;
    subcontrol-position: top left;
    padding: 2px 10px;
    color: {p.accent};
    font-size: 10pt;
}}
QGroupBox::indicator {{
    width: 0px; height: 0px;
    margin: 0px; padding: 0px;
    border: none;
}}

/* ── Buttons ──────────────────────────────────────── */
QPushButton {{
    background-color: {p.bg_button};
    color: {p.text};
    border: 1px solid {p.border};
    border-radius: 6px;
    padding: 5px 14px;
    min-height: 24px;
    font-weight: 500;
}}
QPushButton:hover {{
    background-color: {p.bg_button_hover};
    border-color: {p.accent};
}}
QPushButton:pressed {{ background-color: {p.bg_button_pressed}; }}
QPushButton:disabled {{ color: {p.text_dim}; }}
QPushButton[checkable="true"]:checked {{
    background-color: {p.green};
    color: {p.bg};
    border-color: {p.green};
    font-weight: bold;
}}
QPushButton[checkable="true"]:checked:hover {{ background-color: {p.green_bright}; }}

/* ── Inputs ───────────────────────────────────────── */
QLineEdit {{
    background-color: {p.bg_input};
    color: {p.text};
    border: 1px solid {p.border};
    border-radius: 6px;
    padding: 4px 8px;
    selection-background-color: {p.selection};
    selection-color: {p.text_bright};
}}
QLineEdit:focus {{ border: 1.5px solid {p.accent}; }}
QComboBox {{
    background-color: {p.bg_input};
    color: {p.text};
    border: 1px solid {p.border};
    border-radius: 6px;
    padding: 4px 8px;
    min-height: 24px;
}}
QComboBox:hover {{ border-color: {p.accent}; }}
QComboBox::drop-down {{ border: none; width: 22px; }}
QComboBox QAbstractItemView {{
    background-color: {p.bg_secondary};
    color: {p.text};
    border: 1px solid {p.border};
    border-radius: 6px;
    selection-background-color: {p.accent};
    selection-color: {p.bg};
    padding: 4px;
    outline: none;
}}
QSpinBox {{
    background-color: {p.bg_input};
    color: {p.text};
    border: 1px solid {p.border};
    border-radius: 6px;
    padding: 4px 8px;
}}

/* ── CheckBox ─────────────────────────────────────── */
QCheckBox {{ color: {p.text}; spacing: 6px; }}
QCheckBox::indicator {{
    width: 14px; height: 14px;
    border: 2px solid {p.text_dim};
    border-radius: 4px;
    background: transparent;
}}
QCheckBox::indicator:checked {{
    background: {p.accent};
    border-color: {p.accent};
}}

/* ── List ─────────────────────────────────────────── */
QListWidget {{
    background-color: {p.bg_input};
    color: {p.text};
    border: 1px solid {p.border};
    border-radius: 6px;
    outline: none;
    padding: 2px;
}}
QListWidget::item {{ padding: 3px 8px; border-radius: 4px; }}
QListWidget::item:selected {{ background-color: {p.selection}; color: {p.text_bright}; }}
QListWidget::item:hover:!selected {{ background-color: {p.bg_button}; }}

/* ── ScrollBar ────────────────────────────────────── */
QScrollBar:vertical {{
    background: transparent; width: 8px; margin: 2px 0;
}}
QScrollBar::handle:vertical {{
    background: {p.scroll_handle}; border-radius: 4px; min-height: 30px;
}}
QScrollBar::handle:vertical:hover {{ background: {p.scroll_hover}; }}
QScrollBar::add-line:vertical, QScrollBar::sub-line:vertical {{ height: 0; }}
QScrollBar:horizontal {{
    background: transparent; height: 8px; margin: 0 2px;
}}
QScrollBar::handle:horizontal {{
    background: {p.scroll_handle}; border-radius: 4px; min-width: 30px;
}}
QScrollBar::handle:horizontal:hover {{ background: {p.scroll_hover}; }}
QScrollBar::add-line:horizontal, QScrollBar::sub-line:horizontal {{ width: 0; }}

/* ── Misc ─────────────────────────────────────────── */
QScrollArea {{ background: transparent; border: none; }}
QSplitter::handle {{ background: {p.border}; width: 2px; }}
QTextEdit {{
    background-color: {p.bg_input};
    color: {p.text};
    border: 1px solid {p.border};
    border-radius: 6px;
    selection-background-color: {p.selection};
    padding: 4px;
}}
QToolTip {{
    background-color: {p.bg_secondary};
    color: {p.text};
    border: 1px solid {p.border};
    border-radius: 6px;
    padding: 6px 10px;
}}
QDialog {{ background-color: {p.bg}; }}
QDialogButtonBox QPushButton {{ min-width: 80px; }}
QLabel {{ color: {p.text}; background: transparent; }}
QToolButton {{
    background: transparent;
    color: {p.text};
    border: none;
    border-radius: 6px;
    padding: 4px 8px;
    font-size: 14pt;
}}
QToolButton:hover {{ background-color: {p.bg_button_hover}; }}
"""