export type Party = {
    id: string;
    name: string | null;
    kind: 'person' | 'entity';
    source: string | null;
    roles: string[];
    represented_id: string | null;
    cash: string | null;
    in_kind: string | null;
    paid: string | null;
    share_count: string | null;
    work: string | null;
    commitment: string | null;
    source_snapshot?: {
        origin: string;
        reference: string;
        version: string | number | null;
    };
};
export type CompanyFacts = {
    form: string | null;
    proposed_name: string | null;
    seat: string | null;
    activities: string | null;
    regulated: string;
    currency: string | null;
    capital: string | null;
    nominal_value: string | null;
    management: string | null;
    binding: string | null;
    notes: string | null;
    parties: Party[];
};

/** Read actual form values, including autofill, without serializing private provenance. */
export function preparationValues(
    form: HTMLFormElement,
    facts: CompanyFacts,
): CompanyFacts {
    const data = new FormData(form);
    const value = (key: string, fallback: string | null) => {
        const v = data.get(key);
        return typeof v === 'string' ? v.trim() || null : fallback;
    };
    return {
        form: value('form', facts.form),
        proposed_name: value('proposed_name', facts.proposed_name),
        seat: value('seat', facts.seat),
        activities: value('activities', facts.activities),
        regulated: value('regulated', facts.regulated) ?? 'unknown',
        currency: value('currency', facts.currency),
        capital: value('capital', facts.capital),
        nominal_value: value('nominal_value', facts.nominal_value),
        management: value('management', facts.management),
        binding: value('binding', facts.binding),
        notes: value('notes', facts.notes),
        parties: facts.parties.map((p) => ({
            id: p.id,
            name: value(`${p.id}.name`, p.name),
            kind: p.kind,
            source: p.source,
            roles: p.roles,
            represented_id: p.represented_id,
            cash: value(`${p.id}.cash`, p.cash),
            in_kind: value(`${p.id}.in_kind`, p.in_kind),
            paid: value(`${p.id}.paid`, p.paid),
            share_count: value(`${p.id}.share_count`, p.share_count),
            work: value(`${p.id}.work`, p.work),
            commitment: value(`${p.id}.commitment`, p.commitment),
        })),
    };
}