import type { VrLike } from './clients.js';
export type OwnerKind = 'person' | 'company';
export type OwnerConfidenceTier = 'HIGH' | 'LOW';
export interface OwnerConfidence {
    tier: OwnerConfidenceTier;
    score: number;
    basis: 'NAME_AND_BIRTH_YEAR' | 'NAME_ONLY' | 'COMPANY_ICO';
    ambiguous: boolean;
}
export interface OwnerEntry {
    kind: OwnerKind;
    name: string | null;
    ico: string | null;
    person_id: string | null;
    birth_year: number | null;
    share: string | null;
    share_percent: number | null;
    type: string | null;
    role: string | null;
    valid_from: string | null;
    confidence: OwnerConfidence;
    namesake_flag: boolean;
}
export interface OwnershipNode {
    ico: string;
    name: string | null;
    depth: number;
    path: string[];
    cycle: boolean;
    owners: OwnerEntry[];
    children: OwnershipNode[];
}
export interface OwnersResult {
    query: {
        ico: string;
        max_depth: number;
    };
    as_of: string | null;
    source: 'vr';
    root: OwnershipNode;
    direct_owners: OwnerEntry[];
    chains: string[][];
    warnings: string[];
}
export declare const OWNERSHIP_ROLE_FILTER_SQL = "\n  r.valid_to IS NULL\n  AND r.share_type IS NOT NULL\n  AND (\n    r.share_type ILIKE '%spole%'\n    OR r.share_type ILIKE '%akcion%'\n  )\n";
export declare const OWNERS_SQL = "\nWITH RECURSIVE owner_nodes_raw AS (\n  SELECT\n    c.ico,\n    c.name,\n    c.source_dataset,\n    0::int AS depth,\n    ARRAY[c.ico]::text[] AS path,\n    false AS cycle\n  FROM vr.companies c\n  WHERE c.ico = $1\n\n  UNION ALL\n\n  SELECT\n    owner_edge.member_ico AS ico,\n    mc.name,\n    mc.source_dataset,\n    n.depth + 1 AS depth,\n    n.path || owner_edge.member_ico,\n    owner_edge.member_ico = ANY(n.path) AS cycle\n  FROM owner_nodes_raw n\n  JOIN LATERAL (\n    SELECT DISTINCT r.member_ico\n    FROM vr.roles r\n    WHERE r.company_ico = n.ico\n      AND \n  r.valid_to IS NULL\n  AND r.share_type IS NOT NULL\n  AND (\n    r.share_type ILIKE '%spole%'\n    OR r.share_type ILIKE '%akcion%'\n  )\n\n      AND r.member_ico IS NOT NULL\n  ) owner_edge ON true\n  LEFT JOIN vr.companies mc ON mc.ico = owner_edge.member_ico\n  WHERE n.depth < $2\n    AND n.cycle = false\n),\nowner_nodes AS (\n  SELECT DISTINCT ON (path) *\n  FROM owner_nodes_raw\n  ORDER BY path, depth\n),\nperson_name_counts AS (\n  SELECT\n    p.full_name,\n    extract(year FROM p.birth_date)::int AS birth_year,\n    count(*)::int AS same_name_birth_year_count\n  FROM vr.persons p\n  JOIN (\n    SELECT DISTINCT\n      owner_person.full_name,\n      extract(year FROM owner_person.birth_date)::int AS birth_year\n    FROM owner_nodes n\n    JOIN vr.roles r ON r.company_ico = n.ico AND \n  r.valid_to IS NULL\n  AND r.share_type IS NOT NULL\n  AND (\n    r.share_type ILIKE '%spole%'\n    OR r.share_type ILIKE '%akcion%'\n  )\n\n    JOIN vr.persons owner_person ON owner_person.id = r.person_id\n    WHERE r.member_ico IS NULL\n  ) owner_names\n    ON owner_names.full_name = p.full_name\n   AND owner_names.birth_year IS NOT DISTINCT FROM extract(year FROM p.birth_date)::int\n  GROUP BY p.full_name, extract(year FROM p.birth_date)::int\n)\nSELECT\n  n.ico,\n  n.name,\n  n.source_dataset,\n  n.depth,\n  n.path,\n  n.cycle,\n  asof.finished_at AS as_of,\n  COALESCE(o.owners, '[]'::jsonb) AS owners\nFROM owner_nodes n\nLEFT JOIN LATERAL (\n  SELECT il.finished_at\n  FROM vr.import_log il\n  WHERE il.dataset = n.source_dataset\n    AND il.status = 'done'\n  ORDER BY il.finished_at DESC NULLS LAST\n  LIMIT 1\n) asof ON true\nLEFT JOIN LATERAL (\n  -- Dedup vlastn\u00EDk\u016F na IDENTITU (member_ico u firem; jm\u00E9no+rok u osob/ciz\u00EDch\n  -- entit). VR raw data maj\u00ED duplicitn\u00ED role \u0159\u00E1dky (re-ingest + historie) li\u0161\u00EDc\u00ED\n  -- se valid_from/role \u2192 DISTINCT na cel\u00E9m objektu je NEslou\u010D\u00ED. DISTINCT ON\n  -- identitu, bereme nejnov\u011Bj\u0161\u00ED z\u00E1znam (valid_from DESC).\n  SELECT jsonb_agg(d.owner_obj) AS owners\n  FROM (\n    SELECT DISTINCT ON (COALESCE(r.member_ico, lower(trim(p.full_name)) || '|' || COALESCE(extract(year FROM p.birth_date)::text, '')))\n      jsonb_build_object(\n        'kind', CASE WHEN r.member_ico IS NULL THEN 'person' ELSE 'company' END,\n        'name', COALESCE(mc.name, p.full_name),\n        'ico', r.member_ico,\n        'person_id', CASE WHEN r.member_ico IS NULL THEN p.id::text ELSE NULL END,\n        'birth_year', CASE WHEN r.member_ico IS NULL THEN extract(year FROM p.birth_date)::int ELSE NULL END,\n        'share', r.share_type,\n        'type', split_part(r.share_type, ' | ', 1),\n        'role', r.role,\n        'valid_from', r.valid_from,\n        'namesake_flag', CASE WHEN r.member_ico IS NULL THEN COALESCE(pnc.same_name_birth_year_count, 0) > 1 ELSE false END\n      ) AS owner_obj\n    FROM vr.roles r\n    LEFT JOIN vr.persons p ON p.id = r.person_id\n    LEFT JOIN vr.companies mc ON mc.ico = r.member_ico\n    LEFT JOIN person_name_counts pnc\n      ON pnc.full_name = p.full_name\n     AND pnc.birth_year IS NOT DISTINCT FROM extract(year FROM p.birth_date)::int\n    WHERE r.company_ico = n.ico\n      AND \n  r.valid_to IS NULL\n  AND r.share_type IS NOT NULL\n  AND (\n    r.share_type ILIKE '%spole%'\n    OR r.share_type ILIKE '%akcion%'\n  )\n\n      AND r.person_id IS NOT NULL\n    ORDER BY COALESCE(r.member_ico, lower(trim(p.full_name)) || '|' || COALESCE(extract(year FROM p.birth_date)::text, '')),\n             r.valid_from DESC NULLS LAST\n  ) d\n) o ON true\nORDER BY n.depth, n.path\n";
export declare function lookupOwners(vr: VrLike, input: {
    ico: string;
    maxDepth?: number;
}): Promise<OwnersResult>;
export declare function buildOwnersMarkdown(result: OwnersResult): string;
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