import { IndexHtmlGenerator, type IndexHtmlGeneratorOptions } from '@angular/build/private';
import { Compilation, RspackPluginInstance, type Compiler } from '@rspack/core';
import type { I18nOptions, IndexExpandedDefinition } from '../models';
import { type CriticalCssPlan } from '../utils/beasties';
/** The index html documents of a server build for one locale. */
export interface ServerIndexHtml {
    /** `index.server.html`, the document server rendering renders into. */
    server: string;
    /** `index.csr.html`, served as-is for client-rendered routes. */
    csr: string;
    /** The `ngCspNonce` attribute value of the server document. */
    nonce: string | undefined;
}
export interface ServerRenderingInputs {
    /** Keyed by locale, the empty string when not localizing. */
    indexHtml: Map<string, ServerIndexHtml>;
    /**
     * Set when critical CSS is inlined from compiled plans, which
     * `@angular/build` >= 22.2 does.
     */
    criticalCssPlans: CriticalCssPlan[] | undefined;
    emitsOriginalIndex?: boolean;
}
/**
 * Holds the server rendering inputs of the browser compiler's last
 * compilation without errors, for the server compiler that runs after it.
 */
export interface SharedServerRenderingInputs {
    current?: ServerRenderingInputs;
}
export interface IndexHtmlPluginOptions extends IndexHtmlGeneratorOptions {
    baseHref: string | undefined;
    i18n: I18nOptions;
    index: IndexExpandedDefinition;
    isSsr: boolean;
    outputPath: string;
    serverRenderingInputs?: SharedServerRenderingInputs;
    serverPostTransform?: IndexHtmlGeneratorOptions['postTransform'];
}
/**
 * Whether a server build emits its server index as `index.original.html`,
 * which Nx's CommonEngine server template renders instead of `index.html`.
 * From 22.2, CommonEngine inlining critical CSS a second time into the browser
 * index leaves a stylesheet that never loads.
 */
export declare function emitsServerIndexAsOriginal(index: IndexExpandedDefinition): boolean;
export declare class IndexHtmlPlugin extends IndexHtmlGenerator implements RspackPluginInstance {
    #private;
    readonly options: IndexHtmlPluginOptions;
    private _compilation;
    get compilation(): Compilation;
    constructor(options: IndexHtmlPluginOptions);
    apply(compiler: Compiler): void;
    readAsset(path: string): Promise<string>;
    protected readIndex(path: string): Promise<string>;
    getLocaleBaseHref(locale: string): string | undefined;
}
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