feat: update costs

app/index.tsx

@@ -1,29 +1,47 @@
 import { authClient } from '@/lib/auth-client';
-import { Button, Linking, Pressable, ScrollView, Text, View } from 'react-native';
+import { Pressable, ScrollView, Text, View } from 'react-native';
 import { useQuery, useZero } from "@rocicorp/zero/react";
 import { queries, type Mutators, type Schema } from '@money/shared';
 import { useEffect, useState } from 'react';
-import { transaction } from '@/shared/src/db';
 
 export default function HomeScreen() {
   const { data: session } = authClient.useSession();
 
   const z = useZero<Schema, Mutators>();
-  const [plaidLink] = useQuery(queries.getPlaidLink(session)); 
   const [transactions] = useQuery(queries.allTransactions(session));
   const [balances] = useQuery(queries.getBalances(session));
 
   const [idx, setIdx] = useState(0);
+  const [accountIdx, setAccountIdx] = useState(0);
+
+  const account = balances.at(accountIdx)!;
+
+  const filteredTransactions = transactions
+    .filter(t => t.account_id == account.plaid_id)
 
   useEffect(() => {
     const handleKeyDown = (event: KeyboardEvent) => {
       if (event.key === "j") {
         setIdx((prevIdx) => {
-          if (prevIdx + 1 == transactions.length) return prevIdx;
+          if (prevIdx + 1 == filteredTransactions.length) return prevIdx;
           return prevIdx + 1
         });
       } else if (event.key === "k") {
         setIdx((prevIdx) => prevIdx == 0 ? 0 : prevIdx - 1);
+      } else if (event.key == 'g') {
+        setIdx(0);
+      } else if (event.key == "G") {
+        setIdx(transactions.length - 1);
+      } else if (event.key == 'R') {
+        z.mutate.link.updateTransactions();
+        z.mutate.link.updateBalences();
+      } else if (event.key == 'h') {
+        setAccountIdx((prevIdx) => prevIdx == 0 ? 0 : prevIdx - 1);
+      } else if (event.key == 'l') {
+        setAccountIdx((prevIdx) => {
+          if (prevIdx + 1 == balances.length) return prevIdx;
+          return prevIdx + 1
+        });
       }
     };
 
@@ -32,33 +50,32 @@ export default function HomeScreen() {
     return () => {
       window.removeEventListener("keydown", handleKeyDown);
     };
-  }, [transactions]);
+  }, [filteredTransactions, balances]);
+
+  function lpad(n: number): string {
+    const LEN = 9;
+    const nstr = n.toFixed(2).toLocaleString();
+    return Array.from({ length: LEN - nstr.length }).join(" ") + nstr;
+  }
 
   return (
     <View>
-      {plaidLink && <Button onPress={() => {
-        z.mutate.link.updateTransactions();
-      }} title="Update transactions" />}
-      {plaidLink && <Button onPress={() => {
-        z.mutate.link.updateBalences();
-      }} title="Update bal" />}
-
       <View style={{ flexDirection: "row" }}>
         <View style={{ backgroundColor: '' }}>
-          {balances.map(bal => <View key={bal.id}>
-            <Text style={{ fontFamily: 'mono',  }}>{bal.name}: {bal.current} ({bal.avaliable})</Text>
+          {balances.map((bal, i) => <View key={bal.id} style={{ backgroundColor: i == accountIdx ? 'black' : undefined}}>
+            <Text style={{ fontFamily: 'mono', color: i == accountIdx ? 'white' : undefined  }}>{bal.name}: {bal.current} ({bal.avaliable})</Text>
           </View>)}
         </View>
 
         <View>
-          {transactions.map((t, i) => <Pressable onHoverIn={() => {
+          {filteredTransactions.map((t, i) => <Pressable onHoverIn={() => {
             setIdx(i);
           }} style={{ backgroundColor: i == idx ? 'black' : undefined, cursor: 'default' as 'auto' }} key={t.id}>
-            <Text style={{ fontFamily: 'mono', color: i == idx ? 'white' : undefined }}>{new Date(t.datetime!).toDateString()} {t.name.substring(0, 50)} {t.amount}</Text>
+            <Text style={{ fontFamily: 'mono', color: i == idx ? 'white' : undefined }}>{new Date(t.datetime!).toDateString()} <Text style={{ color: t.amount > 0 ? 'red' : 'green' }}>{lpad(t.amount)}</Text> {t.name.substring(0, 50)}</Text>
           </Pressable>)}
         </View>
         <ScrollView>
-          <Text style={{ fontFamily: 'mono' }}>{JSON.stringify(JSON.parse(transactions.at(idx)?.json || "null"), null, 4)}</Text>
+          <Text style={{ fontFamily: 'mono' }}>{JSON.stringify(JSON.parse(filteredTransactions.at(idx)?.json || "null"), null, 4)}</Text>
         </ScrollView>
       </View>
     </View>