import type { FixManifest } from "../orchestrator/finish-tool.js";
type PageChange = FixManifest["pages"][number]["changes"][number];
type DomainPatch = FixManifest["domainLevel"][number];
/**
 * Structured patch diff. Each manifest change maps to one of these,
 * which downstream consumers (web UI, CLI, GitHub-PR generator) render
 * differently:
 *   - text_replace → before/after blocks side-by-side, copy-paste UI
 *   - html_insert  → HTML snippet to paste into the named region
 *   - html_remove  → CSS selector to delete
 *   - file_replace → full-file diff (robots.txt / sitemap.xml)
 *   - guidance     → freeform prose (canonical_strategy)
 *
 * Kept deliberately narrow — not a unified-diff library. The manifest
 * patches are paste-into-CMS-friendly outputs, not source-level diffs.
 */
export type PatchDiff = {
    kind: "text_replace";
    field: "h1" | "title" | "meta_description" | "intro";
    before: string;
    after: string;
    reason: string;
} | {
    kind: "html_insert";
    target: "head" | "body" | "after_h1";
    description: string;
    html: string;
    reason: string;
} | {
    kind: "html_remove";
    selector: string;
    reason: string;
} | {
    kind: "file_replace";
    path: string;
    before: string | null;
    after: string;
    reason: string;
} | {
    kind: "guidance";
    topic: "canonical_strategy";
    text: string;
    reason: string;
};
/**
 * Convert a single page-change into a `PatchDiff`. Pure transformation —
 * does not validate (use `validatePageChange` for that). The two should
 * be called in sequence at manifest finalization: validate first, drop
 * failures, then diff the survivors.
 */
export declare function diffPageChange(c: PageChange): PatchDiff;
/** Convert a single domain patch into a `PatchDiff`. */
export declare function diffDomainPatch(p: DomainPatch): PatchDiff;
export interface ManifestDiff {
    pages: Array<{
        url: string;
        diffs: PatchDiff[];
    }>;
    templates: Array<{
        templateId: string;
        affectedUrlCount: number;
        recommendation: string;
        examples: Array<{
            url: string;
            diffs: PatchDiff[];
        }>;
    }>;
    domainLevel: PatchDiff[];
}
/**
 * Walk every patch in a manifest and produce a structured-diff projection.
 * Mirrors the manifest's tree structure so the UI can render side-by-side
 * (page list / template clusters / domain-level), each populated with
 * already-typed patch diffs.
 */
export declare function diffManifest(manifest: FixManifest): ManifestDiff;
export {};
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