orders view fixes

src/misc.js

@@ -3,6 +3,19 @@ import {usePrefStore, useStore} from "@/store/store.js";
 import {token} from "@/blockchain/token.js";
 import Color from "color";
 
+const QUOTE_SYMBOLS = [
+    // in order of preference
+    // todo put this in metadata.json using addrs
+    'USDT',
+    'USDC',
+    'USDC.e',
+    'BTC',
+    'WBTC',
+    'ETH',
+    'WETH',
+    'ARB',
+]
+
 export class SingletonCoroutine {
     constructor(f, delay = 10) {
         this.f = f
@@ -106,24 +119,44 @@ export function pairPriceAddr(chainId, baseTokenAddr, quoteTokenAddr, price) {
 }
 
 
-export function pairPrice(chainId, baseToken, quoteToken, price, decimals = null) {
+export function flipInversionPreference(chainId, base, quote) {
+    const k = pairKey(chainId, base, quote)
+    const prefs = usePrefStore()
+    prefs.inverted[k] = !prefs.inverted[k]
+}
+
+
+export function inversionPreference(chainId, base, quote) {
+    // returns the user preference for whether to invert this pair or not
+    const invertedKey = pairKey(chainId, base, quote);
+    const prefs = usePrefStore()
+    if (!(invertedKey in prefs.inverted)) {
+        // todo prefer stablecoins as the quote asset
+        let inverted = false;
+        for (const q of QUOTE_SYMBOLS) {
+            if (quote.s === q)
+                break // definitely not inverted
+            if (base.s === q) {
+                inverted = true
+                break // definitely inverted
+            }
+        }
+        prefs.inverted[invertedKey] = inverted
+    }
+    return prefs.inverted[invertedKey]
+}
+
+
+export function pairPrice(chainId, baseToken, quoteToken, price) {
     // console.warn('pairPrice', chainId, baseToken, quoteToken, price, decimals)
-    if (!price) return null
     if (price === null || price === undefined)
-        return price
-    if (decimals === null)
-        decimals = baseToken.d - quoteToken.d
+        return null
+    const decimals = quoteToken.d - baseToken.d
     if (decimals >= 0)
         price /= 10 ** decimals
     else
         price *= 10 ** -decimals
-    const invertedKey = pairKey(chainId, baseToken, quoteToken);
-    const prefs = usePrefStore()
-    if (!(invertedKey in prefs.inverted)) {
-        // todo prefer stablecoins as the quote asset
-        prefs.inverted[invertedKey] = false
-    }
-    if (prefs.inverted[invertedKey])
+    if (inversionPreference(chainId, baseToken, quoteToken))
         price = 1 / price
     return price
 }