import { GpuShaderDefinition } from '../../gpu/porters';
import { transformPosition, transformColor } from '../../utilities/transformations';
import { BoundingBoxOrigin } from '../../types';

export interface ComponentProps {
    /**
     * Reference edge the center position is measured from (center default). Lets you pin the shape relative to a corner or the canvas centre.
     *
     * @default "center"
     */
    origin: BoundingBoxOrigin;
    /**
     * Center position of the nebula shape
     *
     * Accepts `{ x, y }` objects with values from 0 to 1, or CSS positions like `top center`.
     * @default {"x":0.5,"y":0.5}
     */
    center: Parameters<typeof transformPosition>[0];
    /**
     * Scale of the nebula shape (1 = default size)
     *
     * @default 1
     */
    scale: number;
    /**
     * Rotation of the nebula shape in degrees
     *
     * Accepts a number between 0 and 360.
     * @default 0
     */
    rotation: number;
    /**
     * The hot colour the densest gas cores glow with — the embedded newborn stars
     *
     * Accepts hex strings (`#ff0000`), RGB objects (`{ r, g, b }`), or CSS color names (`limegreen`).
     * @default "#ffd9b0"
     */
    coreColor: Parameters<typeof transformColor>[0];
    /**
     * The main emission colour of the gas body — H-alpha rose by default
     *
     * Accepts hex strings (`#ff0000`), RGB objects (`{ r, g, b }`), or CSS color names (`limegreen`).
     * @default "#ff5e7a"
     */
    gasColor: Parameters<typeof transformColor>[0];
    /**
     * The colour of the thin outer veils and the deep-space background behind the gas
     *
     * Accepts hex strings (`#ff0000`), RGB objects (`{ r, g, b }`), or CSS color names (`limegreen`).
     * @default "#3a5bdb"
     */
    veilColor: Parameters<typeof transformColor>[0];
    /**
     * Color space the veil → gas → core ramps blend in
     *
     * Accepts one of the predefined option values.
     * @default "oklab"
     */
    colorSpace: string;
    /**
     * Optical density of the gas — how strongly clouds occlude the stars and gas behind them
     *
     * @default 1
     */
    density: number;
    /**
     * How hollowed-out the nebula is — 0 fills the volume with cloud banks, high carves large dark voids between them
     *
     * @default 0
     */
    cavity: number;
    /**
     * Cold dark dust lanes threading the gas — absorb-only tendrils that redden the clouds and stars behind them
     *
     * @default 0.55
     */
    dust: number;
    /**
     * Feature size of the gas — higher = finer, busier cloud detail
     *
     * @default 0.4
     */
    gasScale: number;
    /**
     * Turbulent folding of the clouds — 0 = smooth drifting banks, 1 = heavily churned billows
     *
     * @default 0.6
     */
    billow: number;
    /**
     * Hot emission bloom of the dense cores
     *
     * @default 0
     */
    glow: number;
    /**
     * Random seed — pans the gas field to a different region of noise space for a new cloud composition
     *
     * @default 0
     */
    seed: number;
    /**
     * Brightness of the star fields drifting at depth behind and inside the gas
     *
     * @default 0.07
     */
    stars: number;
    /**
     * Density of the star fields — higher = smaller, busier stars
     *
     * @default 1
     */
    starScale: number;
    /**
     * Intensity of the star twinkle (0 = steady stars, 1 = full shimmer)
     *
     * @default 0.35
     */
    twinkle: number;
    /**
     * How strongly the curved glass walls bend the interior seen near the edges
     *
     */
    refraction: number;
    /**
     * Strength of the studio softboxes reflected in the polished glass surface
     *
     * @default 0.7
     */
    environment: number;
    /**
     * Sharp key-light glint on the glass
     *
     * @default 1.15
     */
    highlight: number;
    highlightSoftness: number;
    /**
     * Direction of the key light and reflected studio, in degrees
     *
     */
    lightAngle: number;
    edgeSoftness: number;
    /**
     * Speed of the slowly churning gas and twinkling stars. 0 freezes the nebula.
     *
     * Accepts a number between 0 and 4.
     * @default 0.3
     */
    speed: number;
    /**
     * Serialized shape configuration (JSON)
     *
     * @default "DEFAULT_SHAPE_CONFIG"
     */
    shape: string | Record<string, unknown>;
    /**
     * URL to a pre-generated SDF .bin file
     *
     * @default ""
     */
    shapeSdfUrl: string;
    /**
     * Active SDF shape type
     *
     * @default ""
     */
    shapeType: string;
}
export declare const componentDefinition: GpuShaderDefinition<ComponentProps>;
export default componentDefinition;
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