import type { Camp } from "@/generated/prisma/client";
import { CAMP_ID, type Db, type Tx } from "./db";
import { evaluateSales, type CampGateFields, type SalesState, type StripeMode } from "./sales-gate";
import { dbDateToIso } from "./time";

/**
 * Laedt die Camp-Konfiguration. Fehlt die Zeile (frische Datenbank), wird
 * sie mit sicheren Standardwerten angelegt: Live-Verkauf aus, keine
 * Freigaben, 13 Plaetze und 4 Stammmodel-Buchungen. Die Migration
 * 20261001120000_camp_2027_bestaetigt legt Termin, Ort und Zimmer fest.
 */
export async function getCamp(db: Db | Tx): Promise<Camp> {
  return db.camp.upsert({ where: { id: CAMP_ID }, create: { id: CAMP_ID }, update: {} });
}

export function campStartIso(camp: Pick<Camp, "campStartDate">): string | null {
  return camp.campStartDate ? dbDateToIso(camp.campStartDate) : null;
}

export function toGateFields(camp: Camp): CampGateFields {
  return {
    salesEnabled: camp.salesEnabled,
    capacityConfirmed: camp.capacityConfirmed,
    stammmodelQuotaConfirmed: camp.stammmodelQuotaConfirmed,
    campStartDate: campStartIso(camp),
    dateConfirmed: camp.dateConfirmed,
    locationName: camp.locationName,
    locationConfirmed: camp.locationConfirmed,
    accommodationText: camp.accommodationText,
    accommodationConfirmed: camp.accommodationConfirmed,
    servicesConfirmed: camp.servicesConfirmed,
    organizerName: camp.organizerName,
    organizerAddress: camp.organizerAddress,
    organizerEmail: camp.organizerEmail,
    organizerConfirmed: camp.organizerConfirmed,
    taxNote: camp.taxNote,
    taxConfirmed: camp.taxConfirmed,
    termsVersion: camp.termsVersion,
    termsApproved: camp.termsApproved,
    withdrawalText: camp.withdrawalText,
    withdrawalApproved: camp.withdrawalApproved,
    travelLawChecked: camp.travelLawChecked,
    installmentsApproved: camp.installmentsApproved,
    installmentRuleApproved: camp.installmentRuleApproved,
    testPhaseOverride: camp.testPhaseOverride,
  };
}

export function salesStateFor(camp: Camp, mode: StripeMode, now: Date = new Date()): SalesState {
  return evaluateSales(now, toGateFields(camp), mode);
}

/**
 * Oeffentlich anzeigbare, bestaetigte Fakten. Unbestaetigte Werte werden
 * hier bewusst zu null — die Seite zeigt dann "wird bekanntgegeben" statt
 * eines ungeprueften Datums oder Orts.
 */
export type PublicCampFacts = {
  startDate: string | null;
  endDate: string | null;
  location: string | null;
  region: string | null;
  accommodationText: string | null;
  taxNote: string | null;
  organizer: { name: string; address: string; email: string; phone: string | null } | null;
  termsUrl: string | null;
  termsVersion: string | null;
  withdrawalText: string | null;
};

export function publicCampFacts(camp: Camp): PublicCampFacts {
  return {
    startDate: camp.dateConfirmed ? campStartIso(camp) : null,
    endDate: camp.dateConfirmed && camp.campEndDate ? dbDateToIso(camp.campEndDate) : null,
    location: camp.locationConfirmed ? camp.locationName : null,
    region: camp.locationConfirmed ? camp.locationRegion : null,
    accommodationText: camp.accommodationConfirmed ? camp.accommodationText : null,
    taxNote: camp.taxConfirmed ? camp.taxNote : null,
    organizer:
      camp.organizerConfirmed && camp.organizerName && camp.organizerAddress && camp.organizerEmail
        ? {
            name: camp.organizerName,
            address: camp.organizerAddress,
            email: camp.organizerEmail,
            phone: camp.organizerPhone,
          }
        : null,
    termsUrl: camp.termsApproved ? camp.termsUrl : null,
    termsVersion: camp.termsApproved ? camp.termsVersion : null,
    withdrawalText: camp.withdrawalApproved ? camp.withdrawalText : null,
  };
}