Files
chatgpt-api-web/src/app.tsx
2023-08-25 10:13:11 +08:00

304 lines
9.5 KiB
TypeScript

import { useEffect, useState } from "preact/hooks";
import "./global.css";
import { calculate_token_length, Message } from "./chatgpt";
import getDefaultParams from "./getDefaultParam";
import ChatBOX from "./chatbox";
import models from "./models";
import CHATGPT_API_WEB_VERSION from "./CHATGPT_API_WEB_VERSION";
export interface ChatStoreMessage extends Message {
hide: boolean;
token: number;
example: boolean;
}
export interface ChatStore {
chatgpt_api_web_version: string;
systemMessageContent: string;
history: ChatStoreMessage[];
postBeginIndex: number;
tokenMargin: number;
totalTokens: number;
maxTokens: number;
apiKey: string;
apiEndpoint: string;
streamMode: boolean;
model: string;
responseModelName: string;
cost: number;
temperature: number;
top_p: number;
presence_penalty: number;
frequency_penalty: number;
develop_mode: boolean;
}
const _defaultAPIEndpoint = "https://api.openai.com/v1/chat/completions";
const newChatStore = (
apiKey = "",
systemMessageContent = "Follow my instructions carefully",
apiEndpoint = _defaultAPIEndpoint,
streamMode = true,
model = "gpt-3.5-turbo-0613",
temperature = 1.0,
dev = false
): ChatStore => {
return {
chatgpt_api_web_version: CHATGPT_API_WEB_VERSION,
systemMessageContent: getDefaultParams("sys", systemMessageContent),
history: [],
postBeginIndex: 0,
tokenMargin: 1024,
totalTokens: 0,
maxTokens: models[getDefaultParams("model", model)]?.maxToken ?? 4096,
apiKey: getDefaultParams("key", apiKey),
apiEndpoint: getDefaultParams("api", apiEndpoint),
streamMode: getDefaultParams("mode", streamMode),
model: getDefaultParams("model", model),
responseModelName: "",
cost: 0,
temperature: getDefaultParams("temp", temperature),
top_p: 1,
presence_penalty: 0,
frequency_penalty: 0,
develop_mode: getDefaultParams("dev", dev),
};
};
const STORAGE_NAME = "chatgpt-api-web";
const STORAGE_NAME_SELECTED = `${STORAGE_NAME}-selected`;
const STORAGE_NAME_INDEXES = `${STORAGE_NAME}-indexes`;
const STORAGE_NAME_TOTALCOST = `${STORAGE_NAME}-totalcost`;
export const STORAGE_NAME_TEMPLATE = `${STORAGE_NAME}-template`;
export function addTotalCost(cost: number) {
let totalCost = getTotalCost();
totalCost += cost;
localStorage.setItem(STORAGE_NAME_TOTALCOST, `${totalCost}`);
}
export function getTotalCost(): number {
let totalCost = parseFloat(
localStorage.getItem(STORAGE_NAME_TOTALCOST) ?? "0"
);
return totalCost;
}
export function clearTotalCost() {
localStorage.setItem(STORAGE_NAME_TOTALCOST, `0`);
}
export function App() {
// init indexes
const initAllChatStoreIndexes: number[] = JSON.parse(
localStorage.getItem(STORAGE_NAME_INDEXES) ?? "[0]"
);
const [allChatStoreIndexes, setAllChatStoreIndexes] = useState(
initAllChatStoreIndexes
);
useEffect(() => {
if (allChatStoreIndexes.length === 0) allChatStoreIndexes.push(0);
console.log("saved all chat store indexes", allChatStoreIndexes);
localStorage.setItem(
STORAGE_NAME_INDEXES,
JSON.stringify(allChatStoreIndexes)
);
}, [allChatStoreIndexes]);
// init selected index
const [selectedChatIndex, setSelectedChatIndex] = useState(
parseInt(localStorage.getItem(STORAGE_NAME_SELECTED) ?? "0")
);
useEffect(() => {
console.log("set selected chat index", selectedChatIndex);
localStorage.setItem(STORAGE_NAME_SELECTED, `${selectedChatIndex}`);
}, [selectedChatIndex]);
const getChatStoreByIndex = (index: number): ChatStore => {
const key = `${STORAGE_NAME}-${index}`;
const val = localStorage.getItem(key);
if (val === null) return newChatStore();
const ret = JSON.parse(val) as ChatStore;
// handle read from old version chatstore
if (ret.model === undefined) ret.model = "gpt-3.5-turbo";
if (ret.responseModelName === undefined) ret.responseModelName = "";
if (ret.chatgpt_api_web_version === undefined)
// this is from old version becasue it is undefined,
// so no higher than v1.3.0
ret.chatgpt_api_web_version = "v1.2.2";
for (const message of ret.history) {
if (message.hide === undefined) message.hide = false;
if (message.token === undefined)
message.token = calculate_token_length(message.content);
}
if (ret.cost === undefined) ret.cost = 0;
return ret;
};
const [chatStore, _setChatStore] = useState(
getChatStoreByIndex(selectedChatIndex)
);
const setChatStore = (chatStore: ChatStore) => {
console.log("saved chat", selectedChatIndex, chatStore);
localStorage.setItem(
`${STORAGE_NAME}-${selectedChatIndex}`,
JSON.stringify(chatStore)
);
console.log("recalculate postBeginIndex");
const max = chatStore.maxTokens - chatStore.tokenMargin;
let sum = 0;
chatStore.postBeginIndex = chatStore.history.filter(
({ hide }) => !hide
).length;
for (const msg of chatStore.history
.filter(({ hide }) => !hide)
.slice()
.reverse()) {
if (sum + msg.token > max) break;
sum += msg.token;
chatStore.postBeginIndex -= 1;
}
chatStore.postBeginIndex =
chatStore.postBeginIndex < 0 ? 0 : chatStore.postBeginIndex;
// manually estimate token
chatStore.totalTokens = calculate_token_length(
chatStore.systemMessageContent
);
for (const msg of chatStore.history
.filter(({ hide }) => !hide)
.slice(chatStore.postBeginIndex)) {
chatStore.totalTokens += msg.token;
}
_setChatStore(chatStore);
};
useEffect(() => {
_setChatStore(getChatStoreByIndex(selectedChatIndex));
}, [selectedChatIndex]);
const handleNewChatStore = () => {
const max = Math.max(...allChatStoreIndexes);
const next = max + 1;
console.log("save next chat", next);
localStorage.setItem(
`${STORAGE_NAME}-${next}`,
JSON.stringify(
newChatStore(
chatStore.apiKey,
chatStore.systemMessageContent,
chatStore.apiEndpoint,
chatStore.streamMode,
chatStore.model,
chatStore.temperature,
!!chatStore.develop_mode
)
)
);
allChatStoreIndexes.push(next);
setAllChatStoreIndexes([...allChatStoreIndexes]);
setSelectedChatIndex(next);
};
// if there are any params in URL, create a new chatStore
useEffect(() => {
const api = getDefaultParams("api", "");
const key = getDefaultParams("key", "");
const sys = getDefaultParams("sys", "");
const mode = getDefaultParams("mode", "");
const model = getDefaultParams("model", "");
// only create new chatStore if the params in URL are NOT
// equal to the current selected chatStore
if (
(api && api !== chatStore.apiEndpoint) ||
(key && key !== chatStore.apiKey) ||
(sys && sys !== chatStore.systemMessageContent) ||
(mode && mode !== (chatStore.streamMode ? "stream" : "fetch")) ||
(model && model !== chatStore.model)
) {
handleNewChatStore();
}
}, []);
return (
<div className="flex text-sm h-full bg-slate-200 dark:bg-slate-800 dark:text-white">
<div className="flex flex-col h-full p-2 border-r-indigo-500 border-2 dark:border-slate-800 dark:border-r-indigo-500 dark:text-black">
<div className="grow overflow-scroll">
<button
className="bg-violet-300 p-1 rounded hover:bg-violet-400"
onClick={handleNewChatStore}
>
NEW
</button>
<ul>
{allChatStoreIndexes
.slice()
.reverse()
.map((i) => {
// reverse
return (
<li>
<button
className={`w-full my-1 p-1 rounded hover:bg-blue-500 ${
i === selectedChatIndex ? "bg-blue-500" : "bg-blue-200"
}`}
onClick={() => {
setSelectedChatIndex(i);
}}
>
{i}
</button>
</li>
);
})}
</ul>
</div>
<button
className="rounded bg-rose-400 p-1 my-1 w-full"
onClick={() => {
if (!confirm("Are you sure you want to delete this chat history?"))
return;
console.log("remove item", `${STORAGE_NAME}-${selectedChatIndex}`);
localStorage.removeItem(`${STORAGE_NAME}-${selectedChatIndex}`);
const newAllChatStoreIndexes = [
...allChatStoreIndexes.filter((v) => v !== selectedChatIndex),
];
if (newAllChatStoreIndexes.length === 0) {
newAllChatStoreIndexes.push(0);
setChatStore(
newChatStore(
chatStore.apiKey,
chatStore.systemMessageContent,
chatStore.apiEndpoint,
chatStore.streamMode,
chatStore.model
)
);
}
// find nex selected chat index
const next =
newAllChatStoreIndexes[newAllChatStoreIndexes.length - 1];
console.log("next is", next);
setSelectedChatIndex(next);
setAllChatStoreIndexes([...newAllChatStoreIndexes]);
}}
>
DEL
</button>
</div>
<ChatBOX
chatStore={chatStore}
setChatStore={setChatStore}
selectedChatIndex={selectedChatIndex}
setSelectedChatIndex={setSelectedChatIndex}
/>
</div>
);
}