Forked from slp-dex

src/entities/offer.js

@@ -0,0 +1,58 @@
+/*
+  Offer Entity
+  An Offer Entity is nearly the same as an Order. But while an Order is generated
+  by a webhook from P2WDB, the Offer Entity is created internally. It is used
+  to track an Order generated by this application.
+
+  The Offer tracks the hdIndex address used to hold tokens or BCH for sale.
+*/
+class Offer {
+  validate (data) {
+    const {
+      messageType,
+      messageClass,
+      tokenId,
+      buyOrSell,
+      rateInSats,
+      minSatsToExchange,
+      numTokens
+    } = data
+
+    // Input Validation
+    if (!messageType || typeof messageType !== 'number') {
+      throw new Error("Property 'messageType' must be an integer number.")
+    }
+    if (!messageClass || typeof messageClass !== 'number') {
+      throw new Error("Property 'messageClass' must be an integer number.")
+    }
+    if (!tokenId || typeof tokenId !== 'string') {
+      throw new Error("Property 'tokenId' must be a string.")
+    }
+    if (!buyOrSell || typeof buyOrSell !== 'string') {
+      throw new Error("Property 'buyOrSell' must be a string.")
+    }
+    if (!rateInSats || typeof rateInSats !== 'number') {
+      throw new Error("Property 'rateInSats' must be an integer number.")
+    }
+    if (!minSatsToExchange || typeof minSatsToExchange !== 'number') {
+      throw new Error("Property 'minSatsToExchange' must be an integer number.")
+    }
+    if (!numTokens || typeof numTokens !== 'number') {
+      throw new Error("Property 'numTokens' must be a number.")
+    }
+
+    const offerData = {
+      messageType,
+      messageClass,
+      tokenId,
+      buyOrSell,
+      rateInSats,
+      minSatsToExchange,
+      numTokens
+    }
+
+    return offerData
+  }
+}
+
+module.exports = Offer