accumulated cost

src/app.tsx

@@ -57,6 +57,24 @@ const newChatStore = (
 const STORAGE_NAME = "chatgpt-api-web";
 const STORAGE_NAME_SELECTED = `${STORAGE_NAME}-selected`;
 const STORAGE_NAME_INDEXES = `${STORAGE_NAME}-indexes`;
+const STORAGE_NAME_TOTALCOST = `${STORAGE_NAME}-totalcost`;
+
+export function addTotalCost(cost: number) {
+  let totalCost = getTotalCost();
+  totalCost += cost;
+  localStorage.setItem(STORAGE_NAME_TOTALCOST, `${totalCost}`);
+}
+
+export function getTotalCost(): number {
+  let totalCost = parseFloat(
+    localStorage.getItem(STORAGE_NAME_TOTALCOST) ?? "0"
+  );
+  return totalCost;
+}
+
+export function clearTotalCost() {
+  localStorage.setItem(STORAGE_NAME_TOTALCOST, `0`);
+}
 
 export function App() {
   // init indexes

src/chatbox.tsx

@@ -1,6 +1,6 @@
 import { createRef } from "preact";
 import { StateUpdater, useEffect, useState } from "preact/hooks";
-import type { ChatStore } from "./app";
+import { ChatStore, addTotalCost } from "./app";
 import ChatGPT, {
   calculate_token_length,
   ChunkMessage,
@@ -84,9 +84,11 @@ export default function ChatBOX(props: {
         // console.log("push to history", allChunkMessage);
         const content = allChunkMessage.join("");
         const token = calculate_token_length(content);
+
         // estimate cost
+        let cost = 0;
         if (chatStore.responseModelName) {
-          chatStore.cost +=
+          cost +=
             token *
             (models[chatStore.responseModelName]?.price?.completion ?? 0);
           let sum = 0;
@@ -95,9 +97,12 @@ export default function ChatBOX(props: {
             .slice(chatStore.postBeginIndex)) {
             sum += msg.token;
           }
-          chatStore.cost +=
+          cost +=
             sum * (models[chatStore.responseModelName]?.price?.prompt ?? 0);
         }
+        chatStore.cost += cost;
+        addTotalCost(cost);
+
         chatStore.history.push({
           role: "assistant",
           content,
@@ -127,12 +132,15 @@ export default function ChatBOX(props: {
     const data = (await response.json()) as FetchResponse;
     chatStore.responseModelName = data.model ?? "";
     if (data.model) {
-      chatStore.cost +=
+      let cost = 0;
+      cost +=
         (data.usage.prompt_tokens ?? 0) *
         (models[data.model]?.price?.prompt ?? 0);
-      chatStore.cost +=
+      cost +=
         (data.usage.completion_tokens ?? 0) *
         (models[data.model]?.price?.completion ?? 0);
+      chatStore.cost += cost;
+      addTotalCost(cost);
     }
     const content = client.processFetchResponse(data);
 
@@ -230,13 +238,14 @@ export default function ChatBOX(props: {
   const [showSettings, setShowSettings] = useState(false);
   return (
     <div className="grow flex flex-col p-2 dark:text-black">
-      <Settings
-        chatStore={chatStore}
-        setChatStore={setChatStore}
-        show={showSettings}
-        setShow={setShowSettings}
-        selectedChatStoreIndex={props.selectedChatIndex}
-      />
+      {showSettings && (
+        <Settings
+          chatStore={chatStore}
+          setChatStore={setChatStore}
+          setShow={setShowSettings}
+          selectedChatStoreIndex={props.selectedChatIndex}
+        />
+      )}
       <p
         className="cursor-pointer rounded bg-cyan-300 dark:text-white p-1 dark:bg-cyan-800"
         onClick={() => setShowSettings(true)}

src/settings.tsx

@@ -1,6 +1,6 @@
 import { createRef } from "preact";
-import { StateUpdater } from "preact/hooks";
-import { ChatStore } from "./app";
+import { StateUpdater, useState } from "preact/hooks";
+import { ChatStore, clearTotalCost, getTotalCost } from "./app";
 import models from "./models";
 
 const Help = (props: { children: any; help: string }) => {
@@ -116,11 +116,9 @@ const Choice = (props: {
 export default (props: {
   chatStore: ChatStore;
   setChatStore: (cs: ChatStore) => void;
-  show: boolean;
   setShow: StateUpdater<boolean>;
   selectedChatStoreIndex: number;
 }) => {
-  if (!props.show) return <div></div>;
   const link =
     location.protocol +
     "//" +
@@ -135,13 +133,28 @@ export default (props: {
     )}`;
 
   const importFileRef = createRef();
+  const [totalCost, setTotalCost] = useState(getTotalCost());
   return (
     <div className="left-0 top-0 overflow-scroll flex justify-center absolute w-screen h-full bg-black bg-opacity-50 z-10">
       <div className="m-2 p-2 bg-white rounded-lg h-fit">
         <h3 className="text-xl">Settings</h3>
         <hr />
+        <div className="flex justify-between">
+          <p className="m-2 p-2">
+            Accumulated cost in all sessions ${totalCost.toFixed(4)}
+          </p>
+          <button
+            className="p-2 m-2 rounded bg-emerald-500"
+            onClick={() => {
+              clearTotalCost();
+              setTotalCost(getTotalCost());
+            }}
+          >
+            Reset
+          </button>
+        </div>
         <p className="m-2 p-2">
-          Total cost in this section ${props.chatStore.cost.toFixed(4)}
+          Total cost in this session ${props.chatStore.cost.toFixed(4)}
         </p>
         <div className="box">
           <Input