From 77e1d08a08cc4814483d3fd31661bbea407f8aa2 Mon Sep 17 00:00:00 2001
From: Matthias Kretschmann <m@kretschmann.io>
Date: Mon, 26 Oct 2020 18:44:32 +0100
Subject: [PATCH] prepare displaying firstPrice

---
 .../Pricing/FormPricing/Dynamic.tsx           | 21 +++++++++++++++++--
 .../organisms/AssetContent/index.tsx          |  3 ++-
 2 files changed, 21 insertions(+), 3 deletions(-)

diff --git a/src/components/organisms/AssetContent/Pricing/FormPricing/Dynamic.tsx b/src/components/organisms/AssetContent/Pricing/FormPricing/Dynamic.tsx
index d9ef17c47..b9373460e 100644
--- a/src/components/organisms/AssetContent/Pricing/FormPricing/Dynamic.tsx
+++ b/src/components/organisms/AssetContent/Pricing/FormPricing/Dynamic.tsx
@@ -12,7 +12,6 @@ import stylesIndex from './index.module.css'
 import { useFormikContext } from 'formik'
 import { PriceOptionsMarket } from '../../../../../@types/MetaData'
 import { DDO } from '@oceanprotocol/lib'
-import Fixed from './Fixed'
 import Price from './Price'
 
 export default function Dynamic({
@@ -25,16 +24,32 @@ export default function Dynamic({
   const { account, balance, networkId, refreshBalance } = useOcean()
   const { dtSymbol, dtName } = usePricing(ddo)
 
+  const [firstPrice, setFirstPrice] = useState<string>()
+
   // Connect with form
   const { values } = useFormikContext()
   const {
     price,
     weightOnDataToken,
-    weightOnOcean
+    weightOnOcean,
+    swapFee
   } = values as PriceOptionsMarket
 
   const [error, setError] = useState<string>()
 
+  // Calculate firstPrice whenever
+  useEffect(() => {
+    const tokenAmountOut = 1
+    const weightRatio = Decimal(weightOnDataToken).div(Decimal(weightOnOcean))
+    const diff = Decimal(dtBalance).minus(tokenAmountOut)
+    const y = Decimal(dtBalance).div(diff)
+    const foo = y.pow(weightRatio).minus(Decimal(1))
+    const tokenAmountIn = Decimal(oceanBalance)
+      .times(foo)
+      .div(Decimal(1).minus(Decimal(swapFee)))
+    setFirstPrice(tokenAmountIn)
+  }, [swapFee, weightOnOcean, weightOnDataToken])
+
   // Check: account, network & insufficient balance
   useEffect(() => {
     if (!account) {
@@ -80,6 +95,8 @@ export default function Dynamic({
 
       <Price ddo={ddo} />
 
+      {firstPrice}
+
       <h4 className={styles.title}>
         Datatoken Liquidity Pool <Tooltip content={content.tooltips.poolInfo} />
       </h4>
diff --git a/src/components/organisms/AssetContent/index.tsx b/src/components/organisms/AssetContent/index.tsx
index 3d3419c12..9e0fb22e2 100644
--- a/src/components/organisms/AssetContent/index.tsx
+++ b/src/components/organisms/AssetContent/index.tsx
@@ -30,7 +30,8 @@ export default function AssetContent({
 
   const isOwner = accountId === ddo.publicKey[0].owner
   const hasNoPrice = ddo.price.type === ''
-  const showPricing = isOwner && hasNoPrice
+  // TODO: ONLY FOR DEBUGGING
+  const showPricing = true || (isOwner && hasNoPrice)
 
   return (
     <article className={styles.grid}>