Add FixedPrice auction type

schema.gql

@@ -309,6 +309,7 @@ enum AuctionStatusEnum {
 }
 
 enum AuctionTypeEnum {
+  FixedPrice
   Nft
   NftBid
   None

src/modules/auctions/auctions-setter.service.ts

@@ -1,5 +1,5 @@
 import { Injectable, Logger } from '@nestjs/common';
-import { Auction, AuctionAbi, AuctionStatusEnum, ExternalAuctionAbi } from './models';
+import { Auction, AuctionAbi, AuctionStatusEnum, AuctionTypeEnum, ExternalAuctionAbi } from './models';
 import '../../utils/extensions';
 import { AuctionEntity } from 'src/db/auctions';
 import { NftMarketplaceAbiService } from './nft-marketplace.abi.service';
@@ -56,6 +56,14 @@ export class AuctionsSetterService {
           );
         }
 
+        if (
+          auctionEntity.maxBidDenominated === auctionEntity.minBidDenominated &&
+          auctionEntity.type !== AuctionTypeEnum.SftAll &&
+          auctionEntity.type !== AuctionTypeEnum.SftOnePerPayment
+        ) {
+          auctionEntity.type = AuctionTypeEnum.FixedPrice;
+        }
+
         const savedAuction = await this.persistenceService.insertAuction(auctionEntity);
 
         if (asset?.tags) {

src/modules/auctions/models/AuctionType.enum.ts

@@ -4,6 +4,7 @@ export enum AuctionTypeEnum {
   None = 'None',
   Nft = 'Nft',
   NftBid = 'NftBid',
+  FixedPrice = 'FixedPrice',
   SftAll = 'SftAll',
   SftOnePerPayment = 'SftOnePerPayment',
 }