import { URL } from 'url';
import { MiddlewareFn } from 'type-graphql';
import { RetailerKind } from '@/types';
import { makeValidURL } from '@/repositories/PageRepository/utils';
import { ContextType } from '@/types';
import { AbstractRetailerProductData } from '@/entities/RetailerProduct/AbstractRetailerProductData';

const getRetailerNameFromUrl = (url: string) => {
  const { host } = new URL(makeValidURL(url));
  const hostArray = host.split('.');
  return hostArray.slice(-2, -1)[0];
};

export const getRetailerFromUrl = (url: string): RetailerKind | string => {
  try {
    new URL(makeValidURL(url));
  } catch (e) {
    throw new Error(`Could not get retailer from url: ${url}`);
  }

  try {
    return getRetailerKindFromUrl(url);
  } catch (e) {
    return getRetailerNameFromUrl(url);
  }
};

export const getRetailerKindFromUrl = (url: string): RetailerKind => {
  const retailer = getRetailerNameFromUrl(url);

  switch (retailer) {
    case 'westelm':
      return RetailerKind.WEST_ELM;
    case 'luluandgeorgia':
      return RetailerKind.LULU_AND_GEORGIA;
    case 'crateandbarrel':
      return RetailerKind.CRATE_AND_BARREL;
    case 'urbanoutfitters':
      return RetailerKind.URBAN_OUTFITTERS;
    case 'potterybarn':
      return RetailerKind.POTTERY_BARN;
    case 'worldmarket':
      return RetailerKind.WORLD_MARKET;
    case 'allmodern':
      return RetailerKind.ALL_MODERN;
    case 'birchlane':
      return RetailerKind.BIRCH_LANE;
    case 'jossandmain':
      return RetailerKind.JOSS_AND_MAIN;
    case 'wayfair':
      return RetailerKind.WAYFAIR;

    case 'amazon':
      return RetailerKind.AMAZON;
    case 'ashleyfurniture':
      return RetailerKind.ASHLEY_FURNITURE;
    case 'bellacor':
      return RetailerKind.BELLACOR;
    case 'burkedecor':
      return RetailerKind.BURKE_DECOR;
    case 'englishelm':
      return RetailerKind.ENGLISH_ELM;
    case 'graysonluxury':
      return RetailerKind.GRAYS_ON_LUXURY;
    case 'highfashionhome':
      return RetailerKind.HIGH_FASHION_HOME;
    case 'houzz':
      return RetailerKind.HOUZZ;
    case 'homeshoppingmalls':
      return RetailerKind.HSM;
    case 'interiorhomescapes':
      return RetailerKind.INTERIOR_HOME_SCAPES;
    case 'jcpenney':
      return RetailerKind.JC_PENNY;
    case 'macys':
      return RetailerKind.MACYS;
    case 'neimanmarcus':
      return RetailerKind.NEIMAN_MARCUS;
    case 'onekingslane':
      return RetailerKind.ONE_KINGS_LANE;
    case '1stopbedrooms':
      return RetailerKind.ONE_STOP_BEDROOMS;
    case 'paynesgray':
      return RetailerKind.PAYNES_GRAY;
    case 'perigold':
      return RetailerKind.PERIGOLD;
    case 'pier1':
      return RetailerKind.PIER1_IMPORTS;
    case 'raymourflanigan':
      return RetailerKind.RAYMOUR_AND_FLANIGAN;
    case 'rcwilley':
      return RetailerKind.RC_WILLEY;
    case 'scoutandnimble':
      return RetailerKind.SCOUT_AND_NIMBLE;
    case 'sears':
      return RetailerKind.SEARS;
    case 'target':
      return RetailerKind.TARGET;

    case 'amara':
      return RetailerKind.AMARA;
    case 'bloomingdales':
      return RetailerKind.BLOOMINGDALES;
    case 'colemanfurniture':
      return RetailerKind.COLEMAN_FURNITURE;
    case 'dotandbo':
      return RetailerKind.DOT_AND_BO;
    case 'emmamason':
      return RetailerKind.EMMA_MASON;
    case 'kathykuohome':
      return RetailerKind.KATHY_KUO_HOME;
    case 'kohls':
      return RetailerKind.KOHLS;
    case 'laylagrayce':
      return RetailerKind.LAYLA_GRAYCE;
    case 'makerandmoss':
      return RetailerKind.MAKER_AND_MOSS;
    case 'saksfifthavenue':
      return RetailerKind.SAKS_FIFTH_AVENUE;
    case 'topmodern':
      return RetailerKind.TOP_MODERN;
    case 'walmart':
      return RetailerKind.WALMART;
    case 'overstock':
      return RetailerKind.OVERSTOCK;
    default:
      throw new Error(
        `Unrecognized url when getting retailer: ${url} (hint: retailer:${retailer})`
      );
  }
};

const PREFERRED_RETAILERS_ORDER: string[] = [
  RetailerKind.WEST_ELM,
  RetailerKind.LULU_AND_GEORGIA,
  RetailerKind.CRATE_AND_BARREL,
  RetailerKind.URBAN_OUTFITTERS,
  RetailerKind.POTTERY_BARN,
  RetailerKind.WORLD_MARKET,
  RetailerKind.ALL_MODERN,
  RetailerKind.BIRCH_LANE,
  RetailerKind.JOSS_AND_MAIN,
  RetailerKind.WAYFAIR,
];

export const sortRetailers = <T extends string>(retailers: T[]): T[] => {
  const preferredRetailers: T[] = [];
  const otherRetailers: T[] = [];

  for (const retailer of retailers) {
    if (PREFERRED_RETAILERS_ORDER.includes(retailer)) {
      preferredRetailers.push(retailer);
    } else {
      otherRetailers.push(retailer);
    }
  }

  preferredRetailers.sort(
    (a, b) =>
      PREFERRED_RETAILERS_ORDER.indexOf(a) -
      PREFERRED_RETAILERS_ORDER.indexOf(b)
  );

  return [...preferredRetailers, ...otherRetailers];
};

/**
 * Filter retailer by URL domain using a whitelist.
 */
export const filterRetailerByUrlUsingWhitelist = (
  url: string,
  retailerDomainWhitelistSet: Set<string>
): boolean => {
  const retailerItemUrl = new URL(makeValidURL(url));

  const reversedHostname = retailerItemUrl.hostname.split('.').reverse();
  const retailerItemUrlSecondLevelDomain = reversedHostname[1];

  return retailerDomainWhitelistSet.has(`${retailerItemUrlSecondLevelDomain}`);
};

/**
 * Returns a middleware that filters retailers using a given whitelist.
 *
 * Only use this middleware when the field/resolver returns
 * an array of objects that inherit from `AbstractRetailerProductData`.
 */
export const getFilterRetailersUsingWhitelistMiddleware =
  (retailerDomainWhitelistSet: Set<string>): MiddlewareFn<ContextType> =>
  async (_, next) => {
    const retailers: AbstractRetailerProductData[] = await next();
    return retailers.filter((retailer) =>
      filterRetailerByUrlUsingWhitelist(
        retailer.url,
        retailerDomainWhitelistSet
      )
    );
  };

const RETAILER_DOMAIN_WHITELIST = [
  '1800lighting',
  '1stopbedrooms',
  '1stoplighting',
  '2modern',
  'abbyson',
  'abodehomewares',
  'abt',
  'aetnafurniturestores',
  'afastores',
  'affordablelamps',
  'afw',
  'albeebaby',
  'allmodern',
  'alliancefurnishings',
  'alpinefurniture',
  'amazon',
  'amberinteriordesign',
  'americanhomefurniture',
  'appliancesconnection',
  'arearugs',
  'ashleyfurniture',
  'babyletto',
  'bbqguys',
  'beallsflorida',
  'bedbathandbeyond',
  'bedroomfurniturediscounts',
  'beeslighting',
  'belk',
  'bellacor',
  'bestbuy',
  'bigboxfurniture',
  'bigkitchen',
  'birchlane',
  'bisonoffice',
  'bjs',
  'bloomingdales',
  'boscovs',
  'build',
  'burkedecor',
  'buybuybaby',
  'casagear',
  'casaone',
  'christmascentral',
  'cityfurniture',
  'classic2modern',
  'colemanfurniture',
  'containerstore',
  'crateandbarrel',
  'cymax',
  'decormarket',
  'decorplanet',
  'decorprice',
  'denvermodern',
  'destinationlighting',
  'dillards',
  'distinctive-decor',
  'dotandbo',
  'dynamichomedecor',
  'ebedding4you',
  'emmamason',
  'englishelm',
  'eurway',
  'food52',
  'franceandson',
  'furniturecart',
  'furniturepick',
  'futonland',
  'gardeners',
  'gardner-white',
  'gilt',
  'goinglighting',
  'gordonelectricsupply',
  'graciousstyle',
  'graysonliving',
  'graysonluxury',
  'hammacher',
  'havertys',
  'hayneedle',
  'hedgeapple',
  'highfashionhome',
  'homedepot',
  'homegallerystores',
  'homethangs',
  'homethreads',
  'horchow',
  'houseandhold',
  'houzz',
  'hsn',
  'incrediblerugsanddecor',
  'inmod',
  'interiorhomescapes',
  'jacksonvillefurnituremart',
  'jcpenney',
  'jennifertaylorhome',
  'joann',
  'jossandmain',
  'kardiel',
  'kathykuohome',
  'kbauthority',
  'kirklands',
  'kitchensource',
  'kitsuperstore',
  'kmart',
  'kohls',
  'lafurniturestore',
  'lampsexpo',
  'lampsplus',
  'lampsusa',
  'laylagrayce',
  'lexmod',
  'lightingnewyork',
  'lightology',
  'livingspaces',
  'lordandtaylor',
  'lowes',
  'luluandgeorgia',
  'lumens',
  'lunawarehouse',
  'luxedecor',
  'macys',
  'madisonlighting',
  'maisonette',
  'makerandmoss',
  'markandday',
  'massiano',
  'mattressfirm',
  'meadowblu',
  'memoky',
  'michaels',
  'mmfurniture',
  'moderndigsfurniture',
  'modernnursery',
  'modishstore',
  'modloft',
  'myknobs',
  'nathanjames',
  'neimanmarcus',
  'newegg',
  'nfoutlet',
  'nordstrom',
  'nordstromrack',
  'northerntool',
  'northlineexpress',
  'nyfurnitureoutlets',
  'officechairsunlimited',
  'officedepot',
  'officefurniture',
  'officefurniture2go',
  'officesupply',
  'ojcommerce',
  'onekingslane',
  'opentip',
  'overstock',
  'patioliving',
  'paynesgray',
  'perigold',
  'pier1',
  'plowhearth',
  'plushrugs',
  'potterybarnkids',
  'quill',
  'qvc',
  'raymourflanigan',
  'rcwilley',
  'recreation-outfitters',
  'reedsfurniture',
  'riverbendhome',
  'roomstogo',
  'royaldesign',
  'ruelala',
  'rugs',
  'rugs-direct',
  'rugsabound',
  'rugstown',
  'rugstudio',
  'rugzz',
  'saksfifthavenue',
  'saksoff5th',
  'samsclub',
  'scoutandnimble',
  'sears',
  'sevencolonial',
  'shadesoflight',
  'shop',
  'smartfurniture',
  'sohomod',
  'southforklighting',
  'sportique',
  'standsandmounts',
  'staples',
  'studiolx',
  'sundialhome',
  'superarearugs',
  'swell',
  'target',
  'theclassyhome',
  'thelightshop',
  'thetot',
  'theyamazakihome',
  'topmodern',
  'topographyhome',
  'totallyfurniture',
  'touchofclass',
  'tovfurniture',
  'tractorsupply',
  'umbra',
  'unlimitedfurnituregroup',
  'urbanoutfitters',
  'us-mattress',
  'verishop',
  'vevano',
  'walmart',
  'wayfair',
  'westelm',
  'worldmarket',
  'zinhome',
  'zoro',
  'zulily',
  'edloefinch',
  'inspireq',
  'zgallerie',
  'homelybrand',
  'usfireplacestore',
  'bestnest',
  'dfohome',
  'nfm',
  'zimlay',
  'potterybarn',
  'hsm',
] as const;

export const RETAILER_DOMAIN_WHITELIST_SET = new Set<string>(
  RETAILER_DOMAIN_WHITELIST
);