From d0d7de83f8931aed86df1ba17b4ac8e4137cc250 Mon Sep 17 00:00:00 2001
From: alexcos20 <alex.coseru@gmail.com>
Date: Tue, 27 Oct 2020 09:16:34 -0700
Subject: [PATCH 1/4] fix mint

---
 src/hooks/usePricing/usePricing.ts | 12 +++++++++---
 1 file changed, 9 insertions(+), 3 deletions(-)

diff --git a/src/hooks/usePricing/usePricing.ts b/src/hooks/usePricing/usePricing.ts
index 4509330..08ec640 100644
--- a/src/hooks/usePricing/usePricing.ts
+++ b/src/hooks/usePricing/usePricing.ts
@@ -83,10 +83,16 @@ function usePricing(ddo: DDO): UsePricing {
     setPricingStepText(messages[index])
   }
 
-  async function mint(tokensToMint: string): Promise<TransactionReceipt> {
+  async function mint(
+    tokensToMint: string
+  ): Promise<TransactionReceipt | void> {
     Logger.log('mint function', dataToken, accountId)
-    const tx = await ocean.datatokens.mint(dataToken, accountId, tokensToMint)
-    return tx
+    const balance = await ocean.datatokens.balance(dataToken, accountId)
+    if (parseFloat(tokensToMint) > parseFloat(balance)) {
+      tokensToMint = String(parseFloat(tokensToMint) - parseFloat(balance))
+      const tx = await ocean.datatokens.mint(dataToken, accountId, tokensToMint)
+      return tx
+    }
   }
 
   async function buyDT(

From f1934fec3ea5930c7883b17b61cc2598c0132498 Mon Sep 17 00:00:00 2001
From: alexcos20 <alex.coseru@gmail.com>
Date: Tue, 27 Oct 2020 09:22:22 -0700
Subject: [PATCH 2/4] use Decimal

---
 src/hooks/usePricing/usePricing.ts | 15 +++++++++++----
 1 file changed, 11 insertions(+), 4 deletions(-)

diff --git a/src/hooks/usePricing/usePricing.ts b/src/hooks/usePricing/usePricing.ts
index 08ec640..6a50848 100644
--- a/src/hooks/usePricing/usePricing.ts
+++ b/src/hooks/usePricing/usePricing.ts
@@ -87,10 +87,17 @@ function usePricing(ddo: DDO): UsePricing {
     tokensToMint: string
   ): Promise<TransactionReceipt | void> {
     Logger.log('mint function', dataToken, accountId)
-    const balance = await ocean.datatokens.balance(dataToken, accountId)
-    if (parseFloat(tokensToMint) > parseFloat(balance)) {
-      tokensToMint = String(parseFloat(tokensToMint) - parseFloat(balance))
-      const tx = await ocean.datatokens.mint(dataToken, accountId, tokensToMint)
+    const balance = new Decimal(
+      await ocean.datatokens.balance(dataToken, accountId)
+    )
+    const tokens = new Decimal(tokensToMint)
+    if (tokens > balance) {
+      const mintAmount = tokens.minus(balance)
+      const tx = await ocean.datatokens.mint(
+        dataToken,
+        accountId,
+        mintAmount.toString()
+      )
       return tx
     }
   }

From 6549f6ee9f2ee4e254e1b499103634eb71887bda Mon Sep 17 00:00:00 2001
From: alexcos20 <alex.coseru@gmail.com>
Date: Tue, 27 Oct 2020 09:23:52 -0700
Subject: [PATCH 3/4] fix Decimal compare

---
 src/hooks/usePricing/usePricing.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/hooks/usePricing/usePricing.ts b/src/hooks/usePricing/usePricing.ts
index 6a50848..457b128 100644
--- a/src/hooks/usePricing/usePricing.ts
+++ b/src/hooks/usePricing/usePricing.ts
@@ -91,7 +91,7 @@ function usePricing(ddo: DDO): UsePricing {
       await ocean.datatokens.balance(dataToken, accountId)
     )
     const tokens = new Decimal(tokensToMint)
-    if (tokens > balance) {
+    if (tokens.greaterThan(balance)) {
       const mintAmount = tokens.minus(balance)
       const tx = await ocean.datatokens.mint(
         dataToken,

From 77b172573ca81adb79ddea046daca5050bd16765 Mon Sep 17 00:00:00 2001
From: alexcos20 <alex.coseru@gmail.com>
Date: Tue, 27 Oct 2020 09:29:09 -0700
Subject: [PATCH 4/4] fix lint

---
 src/hooks/usePricing/usePricing.ts | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/hooks/usePricing/usePricing.ts b/src/hooks/usePricing/usePricing.ts
index 457b128..7b2b588 100644
--- a/src/hooks/usePricing/usePricing.ts
+++ b/src/hooks/usePricing/usePricing.ts
@@ -22,7 +22,7 @@ interface UsePricing {
   ) => Promise<TransactionReceipt | string | void>
   buyDT: (dtAmount: number | string) => Promise<TransactionReceipt | void>
   sellDT: (dtAmount: number | string) => Promise<TransactionReceipt | void>
-  mint: (tokensToMint: string) => Promise<TransactionReceipt>
+  mint: (tokensToMint: string) => Promise<TransactionReceipt | void>
   pricingStep?: number
   pricingStepText?: string
   pricingError?: string