import { z } from "zod";
import { tr } from "../../i18n/tr";
import { MEAL_CARD_PROVIDERS } from "../accounts";
import { parseMoney } from "../money";
import { parseQuantity } from "../quantity";
import { STORE_KINDS } from "../stores";

const v = tr.validation;
const s = tr.stores.validation;

/** Boş → null; dolu → kuruş (≥ 0). */
const optionalMoney = z
  .string()
  .trim()
  .transform((x, ctx) => {
    if (x === "") return null;
    const minor = parseMoney(x);
    if (minor === null || minor < 0) {
      ctx.addIssue({ code: "custom", message: v.money });
      return z.NEVER;
    }
    return minor;
  });

/** "2,5" km → 2500 m (3 ondalık = metre). Boş → null. */
const distance = z
  .string()
  .trim()
  .transform((x, ctx) => {
    if (x === "") return null;
    const m = parseQuantity(x);
    if (m === null || m > 1_000_000) {
      ctx.addIssue({ code: "custom", message: s.distance });
      return z.NEVER;
    }
    return m;
  });

export const storeFormSchema = z
  .object({
    name: z.string().trim().min(1, tr.common.required).max(80, v.nameMax),
    kind: z.enum(STORE_KINDS),
    branch: z.string().trim().max(80).default(""),
    distanceKm: distance,
    carryDifficulty: z.coerce.number().int().min(1, s.carry).max(5, s.carry),
    deliveryFee: optionalMoney,
    freeDeliveryMin: optionalMoney,
    mealCardAccepted: z.boolean(),
    mealCardProviders: z.array(z.enum(MEAL_CARD_PROVIDERS)).max(MEAL_CARD_PROVIDERS.length),
    note: z.string().trim().max(300).default(""),
  })
  .superRefine((x, ctx) => {
    if (x.mealCardAccepted && x.mealCardProviders.length === 0)
      ctx.addIssue({ code: "custom", path: ["mealCardProviders"], message: s.providers });
  })
  .transform((x) => {
    const online = x.kind === "online";
    return {
      name: x.name,
      kind: x.kind,
      branch: x.branch,
      distanceM: online ? null : x.distanceKm,
      carryDifficulty: x.carryDifficulty,
      deliveryFeeMinor: online ? x.deliveryFee : null,
      freeDeliveryMinMinor: online ? x.freeDeliveryMin : null,
      mealCardAccepted: x.mealCardAccepted,
      mealCardProviders: x.mealCardAccepted ? [...new Set(x.mealCardProviders)] : [],
      note: x.note,
    };
  });
export type StoreFormInput = z.input<typeof storeFormSchema>;
export type StoreForm = z.output<typeof storeFormSchema>;