import { queryOptions } from "@tanstack/react-query";
import { jsonQuery, paginatedJsonQuery } from "../apiAdapter";

export interface CurrencyAmount {
  amount: number;
  currency: string;
}

export interface Invoice {
  id: number;
  invoice_number: string;
  customer_name: string | null;
  status: string;
  issue_date: string;
  due_date: string;
  total: number;
  currency: string;
}

export interface InvoiceStats {
  paid_month: CurrencyAmount[];
  paid_month_czk: number;
  paid_month_count: number;
  awaiting: CurrencyAmount[];
  awaiting_czk: number;
  awaiting_count: number;
  overdue: CurrencyAmount[];
  overdue_czk: number;
  overdue_count: number;
  vat_month: CurrencyAmount[];
  vat_month_czk: number;
}

export const invoiceListOptions = (filters: {
  search?: string;
  sort?: string;
  order?: string;
  page?: number;
  perPage?: number;
  month?: number;
  year?: number;
  status?: string;
}) =>
  queryOptions({
    queryKey: ["invoices", "list", filters],
    queryFn: () => {
      const params = new URLSearchParams();
      if (filters.search) params.set("search", filters.search);
      if (filters.sort) params.set("sort", filters.sort);
      if (filters.order) params.set("order", filters.order);
      if (filters.page) params.set("page", String(filters.page));
      if (filters.perPage) params.set("per_page", String(filters.perPage));
      if (filters.month) params.set("month", String(filters.month));
      if (filters.year) params.set("year", String(filters.year));
      if (filters.status) params.set("status", filters.status);
      const qs = params.toString();
      return paginatedJsonQuery<Invoice>(
        `/api/admin/invoices${qs ? `?${qs}` : ""}`,
      );
    },
  });

export const receivedInvoiceListOptions = (filters: {
  month?: number;
  year?: number;
  search?: string;
  sort?: string;
  order?: string;
  page?: number;
  perPage?: number;
}) =>
  queryOptions({
    queryKey: [
      "invoices",
      "received",
      {
        month: filters.month,
        year: filters.year,
        search: filters.search,
        sort: filters.sort,
        order: filters.order,
        page: filters.page,
        perPage: filters.perPage,
      },
    ],
    queryFn: () => {
      const params = new URLSearchParams();
      if (filters.month) params.set("month", String(filters.month));
      if (filters.year) params.set("year", String(filters.year));
      if (filters.search) params.set("search", filters.search);
      if (filters.sort) params.set("sort", filters.sort);
      if (filters.order) params.set("order", filters.order);
      if (filters.page) params.set("page", String(filters.page));
      if (filters.perPage) params.set("per_page", String(filters.perPage));
      const qs = params.toString();
      return paginatedJsonQuery(
        `/api/admin/received-invoices${qs ? `?${qs}` : ""}`,
      );
    },
  });

export const invoiceStatsOptions = (month: number, year: number) =>
  queryOptions({
    queryKey: ["invoices", "stats", month, year],
    queryFn: () =>
      jsonQuery<InvoiceStats>(
        `/api/admin/invoices/stats?month=${month}&year=${year}`,
      ),
  });

export const receivedInvoiceStatsOptions = (month: number, year: number) =>
  queryOptions({
    queryKey: ["invoices", "received", "stats", month, year],
    queryFn: () =>
      jsonQuery<Record<string, unknown>>(
        `/api/admin/received-invoices/stats?month=${month}&year=${year}`,
      ),
  });

export const invoiceDetailOptions = (id: string | undefined) =>
  queryOptions({
    queryKey: ["invoices", id],
    queryFn: () =>
      jsonQuery<Record<string, unknown>>(`/api/admin/invoices/${id}`),
    enabled: !!id,
  });