"use server";

import { revalidatePath } from "next/cache";
import { z } from "zod";
import { tr } from "@/i18n/tr";
import { fail, type ActionResult } from "@/lib/action-result";
import { getHouseholdActionContext } from "@/lib/dal";
import { budgetLimitsSchema, budgetMonthSchema, incomeItemsSchema } from "@/shared/schemas/budget";
import { saveIncomeItems } from "./plan";
import { budgetFromActuals, copyPreviousBudget, saveBudget } from "./service";

function fieldErrors(error: z.ZodError) {
  const out: Record<string, string> = {};
  for (const issue of error.issues) {
    const key = issue.path.join(".");
    if (key && !out[key]) out[key] = issue.message;
  }
  return out;
}

async function run<T>(
  schema: z.ZodType<T>,
  input: unknown,
  fn: (userId: string, householdId: string, data: T) => Promise<ActionResult<unknown>>,
): Promise<ActionResult<unknown>> {
  const ctx = await getHouseholdActionContext("member");
  if (!ctx) return fail(tr.common.unauthorized);
  const parsed = schema.safeParse(input);
  if (!parsed.success) return fail(tr.adminUsers.errors.checkFields, fieldErrors(parsed.error));
  const result = await fn(ctx.user.id, ctx.household.id, parsed.data);
  if (result.ok) revalidatePath("/", "layout");
  return result;
}

export async function saveBudgetAction(input: unknown) {
  return run(budgetLimitsSchema, input, saveBudget);
}

export async function copyPreviousBudgetAction(month: unknown) {
  return run(budgetMonthSchema, month, copyPreviousBudget);
}

export async function budgetFromActualsAction(month: unknown) {
  return run(budgetMonthSchema, month, budgetFromActuals);
}

export async function saveIncomeItemsAction(input: unknown) {
  return run(incomeItemsSchema, input, saveIncomeItems);
}