arb1 redeploy

src/misc.js

@@ -1,4 +1,4 @@
-import {ethers, FixedNumber} from "ethers";
+import {FixedNumber} from "ethers";
 import {usePrefStore, useStore} from "@/store/store.js";
 import {token} from "@/blockchain/token.js";
 import Color from "color";
@@ -242,3 +242,14 @@ export function interpolate(a, b, zeroToOne) {
     return a + d * zeroToOne
 }
 
+export function computeInterceptSlope(time0, price0, time1, price1) {
+    if (!time0 || !price0 && price0 !== 0 || !time1 || !price1 && price1 !== 0)
+        throw Error(`invalid line points data ${time0} ${price0} ${time1} ${price1}`)
+    const t0 = time0
+    const t1 = time1
+    if (t0 === t1)
+        throw Error("line points' times must be different")
+    const slope = (price1 - price0) / (t1 - t0)
+    const intercept = price1 - slope * t1
+    return [intercept, slope]
+}