/**
 * story-meta.ts
 *
 * Shared metadata contract between EDS components and Storybook.
 *
 * Each component declares a static `storyMeta` property that fully describes
 * its public API (props, variants, sizes, …). Storybook stories import this
 * metadata and use `buildArgTypes` / `buildStories` to avoid duplicating
 * anything.
 */
export type PropControl = {
    type: "select";
    options: string[];
} | {
    type: "boolean";
} | {
    type: "number";
    min?: number;
    max?: number;
    step?: number;
} | {
    type: "object";
} | {
    type: "text";
};
export interface PropMeta {
    /** Human-readable description shown in the Storybook Controls panel. */
    description: string;
    /** Which Storybook control widget to use. */
    control: PropControl;
    /** Default value to pre-fill in Controls. */
    defaultValue?: unknown;
}
export interface StoryMeta {
    /** Storybook title path, e.g. "Components/Button". */
    title: string;
    /** Custom-element tag name, e.g. "eds-button". */
    tag: string;
    /** Full props API. Keys must match the LitElement @property names. */
    props: Record<string, PropMeta>;
    /**
     * Optional per-story overrides.
     * Each entry becomes a named export in the story file.
     */
    stories?: StoryEntry[];
    cssProperties?: {
        [key: string]: string | {
            description: string;
            default: string;
        };
    };
    cssParts?: {
        [key: string]: string | {
            description: string;
        };
    };
    slots?: {
        [key: string]: string | {
            description: string;
        };
    };
    events?: {
        [key: string]: string | {
            description: string;
        };
    };
}
export interface StoryEntry {
    /** Export name used by Storybook, e.g. "Primary". */
    name: string;
    /** Human-readable display name shown in the sidebar (optional). */
    displayName?: string;
    /** Default arg values for this story. */
    args?: Record<string, unknown>;
    /** Raw HTML template.  Use {{propName}} as placeholders. */
    template?: string;
}
/**
 * Convert a component's `storyMeta.props` into the `argTypes` object that
 * Storybook's `Meta` expects.
 */
export declare function buildArgTypes(props: Record<string, PropMeta>): Record<string, object>;
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