import { Region } from '../../constants/regions';
import { WARGAMING_APPLICATION_ID } from '../../constants/wargamingApplicationID';
import getWargamingResponse from './getWargamingResponse';

interface Account {
  nickname: string;
  account_id: number;
}
export type AccountList = Account[];
export type AccountListWithServer = (Account & {
  region: Region;
})[];

export const usernamePattern = /^[a-zA-Z0-9_]{3,24}$/;
export const usernamePatternWithoutPosition = /[a-zA-Z0-9_]{3,24}/;

export default async function listPlayers(search: string, limit = 9) {
  const trimmedSearch = search.trim();
  const normalizedLimit = Math.round(limit / 3);
  const encodedSearch = encodeURIComponent(trimmedSearch);

  if (usernamePattern.test(trimmedSearch)) {
    return (
      await Promise.all([
        getWargamingResponse<AccountList>(
          `https://api.wotblitz.com/wotb/account/list/?application_id=${WARGAMING_APPLICATION_ID}&search=${encodedSearch}&limit=${normalizedLimit}`,
        ).then(
          (value) =>
            value &&
            value.map((account) => ({
              ...account,
              region: 'com' as Region,
            })),
        ),
        getWargamingResponse<AccountList>(
          `https://api.wotblitz.eu/wotb/account/list/?application_id=${WARGAMING_APPLICATION_ID}&search=${encodedSearch}&limit=${normalizedLimit}`,
        ).then(
          (value) =>
            value &&
            value.map((account) => ({
              ...account,
              region: 'eu' as Region,
            })),
        ),
        getWargamingResponse<AccountList>(
          `https://api.wotblitz.asia/wotb/account/list/?application_id=${WARGAMING_APPLICATION_ID}&search=${encodedSearch}&limit=${normalizedLimit}`,
        ).then(
          (value) =>
            value &&
            value.map((account) => ({
              ...account,
              region: 'asia' as Region,
            })),
        ),
      ])
    )
      .filter(Boolean)
      .flat() as AccountListWithServer;
  } else {
    return [] as AccountListWithServer;
  }
}