import { type TemplateData, ChildOpCode, PropOpCode, StateOpCode } from "./template.js";
export declare const EMPTY_ARRAY: any[];
declare global {
    interface Element {
        moveBefore<T extends Element | CharacterData>(node: T, child: Node | null): void;
    }
}
/**
 * Render Context.
 */
export interface RenderContext {
    /** Parent DOM Element */
    p: Element;
    /** Next DOM Node. */
    n: Node | null;
    /** Template state index. */
    si: number;
    /** DOM Side Effects */
    e: Array<() => void>;
}
/**
 * Global Render Context.
 */
export declare const RENDER_CONTEXT: RenderContext;
/**
 * Flags.
 */
export declare const enum Flags {
    Template = 1,
    Component = 2,
    List = 4,
    Array = 8,
    Text = 16,
    Root = 32,
    Context = 64,
    TypeMask = 127,
    Dirty = 128,
    DirtySubtree = 256,
    ForceUpdate = 512,
    DisplaceNode = 1024
}
/**
 * Stateful Node.
 */
export type SAny = null | SRoot | SText | STemplate | SList | SComponent | SContext;
/**
 * Stateful Node.
 */
export type SNode<V = VAny> = SNode1<V> | SNode2<V>;
/**
 * Stateful Node with 1 state slot.
 *
 * @typeparam S1 State slot #1.
 */
export interface SNode1<V = VAny, S1 = any> {
    /** Stateless Node. */
    v: V;
    /** See {@link Flags} for details. */
    f: Flags;
    /** Children Stateful Nodes. */
    c: SNode | (SNode | null)[] | null;
    /** Parent Stateful Node. */
    p: SNode | null;
    /** State slot #1. */
    s1: S1;
}
/**
 * Stateful Node with 2 state slots.
 *
 * @typeparam S1 State slot #1.
 * @typeparam S2 State slot #2.
 */
export interface SNode2<V = VAny, S1 = any, S2 = any> extends SNode1<V, S1> {
    /** State slot #2. */
    s2: S2;
}
/** Stateful Root Node. */
export type SRoot<S = any> = SNode1<VRoot, S>;
/** Stateful Root Node. */
export type Root<S = any> = SRoot<S>;
/** Stateful Text Node. */
export type SText = SNode1<string | number, Text>;
/** Stateful Template Node. */
export type STemplate = SNode1<VTemplate, Node[]>;
/** Stateful List Node. */
export type SList = SNode1<VList, null>;
/** Stateful Component Node. */
export type SComponent<P = any> = SNode2<VComponent, 
/** Render function. */
null | ComponentRenderFn<P>, 
/** Unmount hooks. */
null | (() => void) | (() => void)[]>;
/** Stateful Component Node. */
export type Component<P = any> = SComponent<P>;
export type ComponentRenderFn<P = any> = (props: P) => VAny;
export type SContext = SNode1<VContext, null>;
/**
 * Creates a Stateful Node instance.
 *
 * @param v VNode.
 * @returns {@link SNode} instance.
 */
export declare const createSNode: <V extends VAny, S>(f: Flags, v: V, c: SNode | Array<SNode1 | null> | null, p: SNode | null, s1: S) => SNode1<V, S>;
/**
 * Stateless Tree Node.
 */
export type VAny = null | undefined | false | string | number | VRoot | VTemplate | VComponent | VContext | VList | VAny[];
/**
 * Stateless Node Descriptor.
 */
export interface VDescriptor<P1 = any, P2 = any> {
    /** See {@link Flags} for details. */
    readonly f: Flags;
    /** First property. */
    readonly p1: P1;
    /** Second property. */
    readonly p2: P2;
}
/** Root Invalidate Hook. */
export type OnRootInvalidated<S> = (root: SRoot<S>, state: S) => void;
/** Root Descriptor. */
export type RootDescriptor<S = any> = VDescriptor<OnRootInvalidated<S>, null>;
/** Template Descriptor */
export type TemplateDescriptor = VDescriptor<TemplateData, () => Element>;
/** Component Descriptor */
export type ComponentDescriptor<P = any> = VDescriptor<ComponentFactoryFn<P>, undefined | ((prev: P, next: P) => boolean)>;
export type ComponentFactoryFn<P = any> = (component: Component) => (props: P) => VAny;
/** Context Descriptor */
export type ContextDescriptor = VDescriptor<null, null>;
/** List Descriptor */
export type ListDescriptor = VDescriptor<null, null>;
/**
 * Stateless Node.
 *
 * @typeparam D Descriptor.
 * @typeparam P Property.
 */
export interface VNode<D extends VDescriptor<any, any> = VDescriptor<any, any>, P = any> {
    /** Descriptor. */
    readonly d: D;
    /** Property. */
    readonly p: P;
}
/** Stateless Root Node. */
export type VRoot = VNode<RootDescriptor, RootProps>;
/** Stateless Template Node. */
export type VTemplate<P = any> = VNode<TemplateDescriptor, P>;
/** Stateless Component Node. */
export type VComponent<P = any> = VNode<ComponentDescriptor, P>;
/** Stateless Context Node. */
export type VContext<T = any> = VNode<ContextDescriptor, ContextProps<T>>;
/** Stateless List Node. */
export type VList<K = any> = VNode<ListDescriptor, ListProps<K>>;
/**
 * Stateless Root Node Props.
 *
 * Contains a DOM position where root children should mounted.
 */
export interface RootProps {
    /** Parent Element */
    p: Element;
    /** Next Node */
    n: Node | null;
}
/**
 * Stateless Context Node Props.
 */
export interface ContextProps<T = any> {
    /** Context Value. */
    v: T;
    /** Stateless Child Node. */
    c: VAny;
}
/**
 * Stateless List Node Props.
 *
 * Contains unique keys for stateless nodes and stateless nodes.
 */
export interface ListProps<K = any> {
    /** Unique Keys. */
    k: K[];
    /** Stateless Nodes. */
    v: VAny[];
}
/**
 * Element Directive.
 */
export type ElementDirective = <E extends Element>(element: E) => void;
export declare const _flushDOMEffects: () => void;
/**
 * Creates a HTML Template cloning factory.
 *
 * @__NO_SIDE_EFFECTS__
 */
export declare const _hN: (t: string | Node) => () => Element;
/**
 * Creates a HTML Element factory.
 *
 * @__NO_SIDE_EFFECTS__
 */
export declare const _hE: (t: string) => () => Element;
/**
 * Creates a SVG Template cloning factory.
 */
export declare const _sN: (t: string | Node) => () => Element;
/**
 * Creates a SVG Element factory.
 *
 * @__NO_SIDE_EFFECTS__
 */
export declare const _sE: (t: string) => () => Element;
/**
 * Creates a template descriptor with globally shared data.
 *
 * @__NO_SIDE_EFFECTS__
 */
export declare const _T: (p2: () => Element, f: number, p: PropOpCode[], c: ChildOpCode[], s: StateOpCode[], d?: string[]) => TemplateDescriptor;
/**
 * @__NO_SIDE_EFFECTS__
 */
export declare const _t: (d: TemplateDescriptor, p: any[]) => VTemplate;
export type ComponentFactory = {
    (factory: (c: Component) => () => VAny, areEqual?: (a?: any, b?: any) => boolean): () => VComponent<undefined>;
    <P>(factory: (c: Component<P>) => (props: P) => VAny, areEqual?: (prev: P, next: P) => boolean): (props: P) => VComponent<P>;
};
/**
 * Creates a factory that produces component nodes.
 *
 * @typeparam P Property type.
 * @param factory Function that produces stateful render functions.
 * @param areEqyal Function that checks `props` for equality.
 * @returns Factory that produces component nodes.
 * @__NO_SIDE_EFFECTS__
 */
export declare const component: ComponentFactory;
/**
 * Gets current component props.
 *
 * @typeparam P Property type.
 * @param component Component node.
 * @returns Current component props.
 */
export declare const getProps: <P>(component: Component<P>) => P;
/**
 * Adds an unmount hook.
 *
 * @example
 *
 *     const Example = component((c) => {
 *       useUnmount(c, () => { console.log("unmounted"); });
 *
 *       return () => null;
 *     });
 *
 * @param component Component instance.
 * @param hook Unmount hook.
 */
export declare const useUnmount: (component: Component, hook: () => void) => void;
export type Effect = {
    (component: Component, effect: () => (() => void) | void, areEqual?: (prev?: any, next?: any) => boolean): () => void;
    <P>(component: Component, effect: (props: P) => (() => void) | void, areEqual?: (prev: P, next: P) => boolean): (props: P) => void;
};
/**
 * Creates a side effect hook.
 *
 * @example
 *
 *     const Example = component((c) => {
 *       const [count, setCount] = useState(c, 0);
 *       const timer = useEffect(c, ({ interval }) => {
 *         const tid = setInterval(() => { setCount(count() + 1); }, interval);
 *         return () => { clearInterval(tid); };
 *       }, shallowEq);
 *
 *       return (interval) => (
 *         timer({ interval }),
 *
 *         html`<span>${count()}</span>`
 *       );
 *     });
 *
 * @typeparam T Hook props type.
 * @param component Component instance.
 * @param hook Side effect function.
 * @param areEqual Function that checks if input value hasn't changed.
 * @returns Side effect hook.
 */
export declare const useEffect: Effect;
export declare const createEffectHandler: (scheduleFlushTask: () => Array<() => void>) => <P>(component: Component, hook: (props?: P) => (() => void) | void, areEqual?: (prev: P, next: P) => boolean) => (props?: P) => void;
export declare const useAnimationFrameEffect: <P>(component: Component, hook: (props?: P) => (() => void) | void, areEqual?: (prev: P, next: P) => boolean) => (props?: P) => void;
export declare const useIdleEffect: <P>(component: Component, hook: (props?: P) => (() => void) | void, areEqual?: (prev: P, next: P) => boolean) => (props?: P) => void;
/**
 * Invalidates a component.
 *
 * @param c Component instance.
 */
export declare const invalidate: (c: Component) => void;
/**
 * VDescriptor for List nodes.
 */
export declare const LIST_DESCRIPTOR: ListDescriptor;
/**
 * Creates a dynamic list.
 *
 * @typeparam E Entry type.
 * @typeparam K Key type.
 * @param entries Entries.
 * @param getKey Get key from entry function.
 * @param render Render entry function.
 * @returns Dynamic list.
 * @__NO_SIDE_EFFECTS__
 */
export declare const List: <E, K>(entries: E[], getKey: (entry: E, index: number) => K, render: (entry: E, index: number) => VAny) => VList;
/**
 * Performs dirty checking in a root subtree.
 *
 * When `forceUpdate` option is enabled, all components in a root subtree will
 * be updated.
 *
 * @param root Root Node.
 * @param forceUpdate Force update components.
 */
export declare const dirtyCheck: (root: Root, forceUpdate?: boolean) => void;
/**
 * Unmounts a root subtree.
 *
 * When `detach` option is enabled, root DOM nodes will be detached from the
 * DOM.
 *
 * @param root Root Node.
 * @param detach Detach root DOM nodes from the DOM.
 */
export declare const unmount: (root: Root, detach: boolean) => void;
export type RootFactory = {
    (onInvalidate: (root: Root<undefined>) => void): (parentElement: Element, nextNode?: Node | null) => Root<undefined>;
    <S>(onInvalidate: (root: Root<S>, state: S) => void): (parentElement: Element, nextNode: Node | null, state: S) => Root<S>;
};
/**
 * Defines a root node with a custom invalidation hook.
 *
 * @param onInvalidate Invalidated Hook.
 * @returns Root Node factory.
 * @__NO_SIDE_EFFECTS__
 */
export declare const defineRoot: RootFactory;
/**
 * Creates a root node that uses microtask queue for scheduling updates.
 *
 * @param parentElement Parent DOM Element.
 * @param nextNode Next DOM Node.
 * @returns Root Node.
 */
export declare const createRoot: (parentElement: Element, nextNode?: Node | null) => Root<undefined>;
/**
 * Updates a root subtree.
 *
 * When `forceUpdate` option is enabled, all components in a root subtree will
 * be updated.
 *
 * @param root Root Node.
 * @param v Stateless View Node.
 * @param forceUpdate Force update components.
 */
export declare const update: (root: Root, v: VAny, forceUpdate?: boolean) => void;
/**
 * Context.
 *
 * @returns Context getter and context provider.
 * @__NO_SIDE_EFFECTS__
 */
export declare const context: <T>() => [get: (component: Component) => T | undefined, provider: (value: T, child: VAny) => VContext<T>];
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