"""5 mood palettes for the dream map SVG."""
from __future__ import annotations

import colorsys
from typing import TypedDict


class Palette(TypedDict):
    bg: str
    bg2: str          # gradient stop
    orbit: str        # subtle ring lines
    node_char: str    # character fill
    node_place: str   # place fill
    node_symbol: str  # symbol fill
    edge_solid: str   # harmony / transformation
    edge_dash: str    # tension / pursuit
    text: str
    text_dim: str
    title: str
    badge_bg: str


PALET_MOOD: dict[str, Palette] = {
    "mysterious": Palette(
        bg="#0d0d1a",
        bg2="#12103a",
        orbit="rgba(151,116,255,0.12)",
        node_char="#9774ff",
        node_place="#4e8fcc",
        node_symbol="#cc8844",
        edge_solid="rgba(151,116,255,0.55)",
        edge_dash="rgba(151,116,255,0.28)",
        text="#e8e4f8",
        text_dim="#9d95b8",
        title="#c8b8ff",
        badge_bg="rgba(151,116,255,0.20)",
    ),
    "joyful": Palette(
        bg="#0a150c",
        bg2="#0f2214",
        orbit="rgba(110,210,100,0.14)",
        node_char="#6ed264",
        node_place="#d4be48",
        node_symbol="#d46ea4",
        edge_solid="rgba(110,210,100,0.60)",
        edge_dash="rgba(110,210,100,0.28)",
        text="#e4f8e6",
        text_dim="#8aba8e",
        title="#aee8a0",
        badge_bg="rgba(110,210,100,0.18)",
    ),
    "anxious": Palette(
        bg="#160a0a",
        bg2="#2a0f0f",
        orbit="rgba(220,72,72,0.14)",
        node_char="#dc4848",
        node_place="#dc9050",
        node_symbol="#8080cc",
        edge_solid="rgba(220,72,72,0.55)",
        edge_dash="rgba(220,72,72,0.28)",
        text="#f8e4e4",
        text_dim="#b88888",
        title="#f0a0a0",
        badge_bg="rgba(220,72,72,0.18)",
    ),
    "surreal": Palette(
        bg="#050f14",
        bg2="#091824",
        orbit="rgba(48,200,200,0.14)",
        node_char="#30c8c8",
        node_place="#c830c8",
        node_symbol="#c8c830",
        edge_solid="rgba(48,200,200,0.55)",
        edge_dash="rgba(200,48,200,0.32)",
        text="#e4f8f8",
        text_dim="#88b0b8",
        title="#88e8e8",
        badge_bg="rgba(48,200,200,0.18)",
    ),
    "peaceful": Palette(
        bg="#080f10",
        bg2="#0d1a1e",
        orbit="rgba(100,170,200,0.14)",
        node_char="#64a8c8",
        node_place="#68c890",
        node_symbol="#c8a870",
        edge_solid="rgba(100,170,200,0.55)",
        edge_dash="rgba(100,170,200,0.28)",
        text="#e4eff8",
        text_dim="#7898a8",
        title="#a0ccdc",
        badge_bg="rgba(100,170,200,0.18)",
    ),
}

_FALLBACK: Palette = PALET_MOOD["mysterious"]


def get_palette(mood: str) -> Palette:
    return PALET_MOOD.get(mood, _FALLBACK)


def _hex_to_hsl(hex_color: str) -> tuple[float, float, float]:
    hex_color = hex_color.lstrip("#")
    r, g, b = (int(hex_color[i:i+2], 16) / 255.0 for i in (0, 2, 4))
    return colorsys.rgb_to_hls(r, g, b)


def _hsl_to_hex(h: float, l: float, s: float) -> str:
    r, g, b = colorsys.hls_to_rgb(h, l, s)
    return "#{:02x}{:02x}{:02x}".format(int(r * 255), int(g * 255), int(b * 255))


def terangkan(hex_color: str, amount: float = 0.15) -> str:
    """Lighten a hex color by HSL amount."""
    h, l, s = _hex_to_hsl(hex_color)
    return _hsl_to_hex(h, min(1.0, l + amount), s)


def gelapkan(hex_color: str, amount: float = 0.15) -> str:
    """Darken a hex color by HSL amount."""
    h, l, s = _hex_to_hsl(hex_color)
    return _hsl_to_hex(h, max(0.0, l - amount), s)