"""The sigil glossary: every mechanic on one page, for deck decisions.

Reachable with [g] from the board and the draft — rules text comes from
the same SIGIL_EXPLAIN dict the per-card magnifier uses, so the glossary
can never disagree with the card under your cursor.
"""

from __future__ import annotations

from rich import box
from rich.panel import Panel
from rich.table import Table
from rich.text import Text
from textual import events
from textual.app import ComposeResult
from textual.containers import Vertical
from textual.screen import Screen
from textual.widgets import Static

from scrypt.ui import palette as pal
from scrypt.ui.render import SIGIL_EXPLAIN, SIGIL_GLYPHS

COSTS = [
    ("free", "costs nothing to play"),
    ("♦", "mem: mark your own board processes to kill (most pay 1♦, ≡priv pays 3♦)"),
    ("⊙", "core dumps: banked each time a process of yours dies"),
    ("0/1 bit", "free fodder from the side pile [s] — born to be sacrificed"),
]


class SigilGlossaryScreen(Screen):
    CSS = """
    #glossary { height: 1fr; align: center middle; }
    #glossary-page { width: 84; height: auto; }
    #glossary-prompt { height: 1; dock: bottom; background: $panel; content-align: center middle; }
    """

    def compose(self) -> ComposeResult:
        with Vertical(id="glossary"):
            yield Static(id="glossary-page")
        yield Static(Text("[any key] back"), id="glossary-prompt")

    def on_mount(self) -> None:
        sigils = Table.grid(padding=(0, 2))
        sigils.add_column(justify="right")
        sigils.add_column()
        for sigil in sorted(SIGIL_EXPLAIN):
            sigils.add_row(
                Text(SIGIL_GLYPHS[sigil], style=pal.TREASURE),
                Text(SIGIL_EXPLAIN[sigil], style=pal.FG),
            )
        sigils.add_row("", "")
        for glyph, rule in COSTS:
            sigils.add_row(Text(glyph, style="bold"), Text(rule, style=pal.MUTED))
        self.query_one("#glossary-page", Static).update(
            Panel(
                sigils,
                box=box.HEAVY,
                border_style=pal.BORDER_BRIGHT,
                title=Text("⟪ sigils & costs ⟫", style=f"bold {pal.WARDEN}"),
                padding=(1, 3),
            )
        )

    def on_key(self, event: events.Key) -> None:
        self.app.pop_screen()