import { API_PATHS } from "@/api/api-paths";
import { apiGet, apiPost } from "@/api/api";
import { handleApiResponse, handlePaginatedResponse } from "@/api/handle-api-response";
import {
  mapAccount,
  mapAccountListItems,
  mapAccountToBackend,
} from "@/domain/accounts/mappers/account-mapper";
import type {
  Account,
  AccountsListParams,
  AccountsListResult,
} from "@/domain/accounts/types/account";

function buildSearchParams(params: AccountsListParams): Record<string, string | number> {
  return {
    search: params.search ?? "",
    page: params.page ?? 1,
    pageSize: params.pageSize ?? 12,
  };
}

async function findAccountInList(id: string | number): Promise<Account> {
  const targetId = String(id);
  let page = 1;
  const pageSize = 100;

  while (true) {
    const data = await apiGet<unknown>(API_PATHS.account.getList, {
      searchParams: { search: "", page, pageSize },
    });
    const paginated = handlePaginatedResponse<unknown>(data, { page, pageSize });
    const match = paginated.items.find((item) => {
      const record = (typeof item === "object" && item !== null ? item : {}) as Record<
        string,
        unknown
      >;
      const itemId = record.id ?? record.Id;
      return String(itemId) === targetId;
    });

    if (match) {
      return mapAccount(match);
    }

    if (paginated.items.length === 0 || page * pageSize >= paginated.totalCount) {
      throw new Error("Account not found");
    }

    page += 1;
  }
}

export const accountsApi = {
  getList: async (params: AccountsListParams = {}): Promise<AccountsListResult> => {
    const searchParams = buildSearchParams(params);
    const data = await apiGet<unknown>(API_PATHS.account.getList, { searchParams });
    const paginated = handlePaginatedResponse<unknown>(data, {
      page: params.page,
      pageSize: params.pageSize,
    });

    return {
      items: mapAccountListItems(paginated.items),
      totalCount: paginated.totalCount,
      page: paginated.page,
      pageSize: paginated.pageSize,
    };
  },

  /** Backend has no GetById — resolve from paginated list. */
  getById: async (id: string | number): Promise<Account> => findAccountInList(id),

  create: async (payload: unknown): Promise<Account> => {
    const data = await apiPost<unknown>(
      API_PATHS.account.addAccounts,
      mapAccountToBackend(payload),
    );
    return mapAccount(handleApiResponse(data));
  },

  update: async (id: string | number, payload: unknown): Promise<Account> => {
    const data = await apiPost<unknown>(
      API_PATHS.account.editAccounts,
      mapAccountToBackend({ ...(payload as object), id }),
    );
    return mapAccount(handleApiResponse(data));
  },

  delete: async (id: string | number): Promise<void> => {
    await apiGet<unknown>(API_PATHS.account.deleteAccounts, {
      searchParams: { id },
    });
  },
};