import type { InferActivityParams, RegisteredActivityName } from "@stackflow/config";
import type { ComponentType, ReactNode } from "react";
export declare const STRUCTURED_ACTIVITY_COMPONENT_TYPE: unique symbol;
export interface StructuredActivityComponentType<P extends {}> {
    [STRUCTURED_ACTIVITY_COMPONENT_TYPE]: true;
    content: Content<P> | (() => Promise<{
        default: Content<P>;
    }>);
    layout?: Layout<P>;
    loading?: Loading<P>;
    errorHandler?: ErrorHandler<P>;
}
export declare function structuredActivityComponent<ActivityName extends RegisteredActivityName>(options: {
    content: Content<InferActivityParams<ActivityName>> | (() => Promise<{
        default: Content<InferActivityParams<ActivityName>>;
    }>);
    layout?: Layout<InferActivityParams<ActivityName>>;
    loading?: Loading<InferActivityParams<ActivityName>>;
    errorHandler?: ErrorHandler<InferActivityParams<ActivityName>>;
}): StructuredActivityComponentType<InferActivityParams<ActivityName>>;
export declare function isStructuredActivityComponent(value: unknown): value is StructuredActivityComponentType<{}>;
export interface Content<P extends {}> {
    component: ComponentType<{
        params: P;
    }>;
}
export declare function content<ActivityName extends RegisteredActivityName>(component: ComponentType<{
    params: InferActivityParams<ActivityName>;
}>): Content<InferActivityParams<ActivityName>>;
export declare function getContentComponent(structuredActivityComponent: StructuredActivityComponentType<{}>): {
    Component: Content<{}>["component"];
    preload: () => Promise<void>;
};
export interface Layout<P extends {}> {
    component: ComponentType<{
        params: P;
        children: ReactNode;
    }>;
}
export declare function layout<ActivityName extends RegisteredActivityName>(component: ComponentType<{
    params: InferActivityParams<ActivityName>;
    children: ReactNode;
}>): Layout<InferActivityParams<ActivityName>>;
export interface Loading<P extends {}> {
    component: ComponentType<{
        params: P;
    }>;
}
export declare function loading<ActivityName extends RegisteredActivityName>(component: ComponentType<{
    params: InferActivityParams<ActivityName>;
}>): Loading<InferActivityParams<ActivityName>>;
export interface ErrorHandler<P extends {}> {
    component: ComponentType<{
        params: P;
        error: unknown;
        reset: () => void;
    }>;
    boundary?: CustomErrorBoundary;
}
export type CustomErrorBoundary = ComponentType<{
    children: ReactNode;
    renderFallback: (error: unknown, reset: () => void) => ReactNode;
}>;
export declare function errorHandler<ActivityName extends RegisteredActivityName>(component: ComponentType<{
    params: InferActivityParams<ActivityName>;
    error: unknown;
    reset: () => void;
}>, options?: {
    boundary?: CustomErrorBoundary;
}): ErrorHandler<InferActivityParams<ActivityName>>;
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