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<script lang="ts">
import {
createHfInference,
prepareRequestMessages,
handleStreamingResponse,
handleNonStreamingResponse
} from './inferencePlaygroundUtils';
import PlaygroundOptions from './InferencePlaygroundGenerationConfig.svelte';
import PlaygroundTokenModal from './InferencePlaygroundHFTokenModal.svelte';
import PlaygroundModelSelector from './InferencePlaygroundModelSelector.svelte';
import Conversation from './InferencePlaygroundConversation.svelte';
import { onDestroy } from 'svelte';
import { type ChatCompletionInputMessage } from '@huggingface/tasks';
import type { ModelEntryWithTokenizer } from '$lib/types';
export let models: ModelEntryWithTokenizer[];
const startMessages: ChatCompletionInputMessage[] = [{ role: 'user', content: '' }];
let conversations: Conversation[] = [
{
id: String(Math.random()),
model: '01-ai/Yi-1.5-34B-Chat',
config: { temperature: 0.5, maxTokens: 2048, streaming: true },
messages: startMessages
}
];
$: if (conversations.length > 1) {
viewCode = false;
}
let systemMessage: ChatCompletionInputMessage = { role: 'system', content: '' };
let hfToken: string | null = import.meta.env.VITE_HF_TOKEN;
let viewCode = false;
let showTokenModal = false;
let loading = false;
let tokens = 0;
let latency = 0;
let abortControllers: AbortController[] = [];
let waitForNonStreaming = true;
onDestroy(() => {
for (const abortController of abortControllers) {
abortController.abort();
}
});
function addMessage() {
conversations = conversations.map((conversation) => {
conversation.messages = [
...conversation.messages,
{
role: conversation.messages.at(-1)?.role === 'user' ? 'assistant' : 'user',
content: ''
}
];
return conversation;
});
}
function updateMessage(value: string, conversationIdx: number, messageIdx: number) {
const lastMsgIdx = conversations[0].messages.length - 1;
const msg = conversations[conversationIdx].messages[messageIdx];
msg.content = value;
const { role } = msg;
if (messageIdx === lastMsgIdx && role === 'user') {
conversations = conversations.map((conversation) => {
conversation.messages[messageIdx].content = value;
return conversation;
});
}
conversations = conversations;
}
function deleteAndGetItem<T>(array: T[], index: number) {
if (index >= 0 && index < array.length) {
return array.splice(index, 1)[0];
}
return undefined;
}
function deleteMessage(idx: number) {
conversations = conversations.map((conversation) => {
deleteAndGetItem<ChatCompletionInputMessage>(conversation.messages, idx);
return conversation;
});
}
function deleteConversation(idx: number) {
deleteAndGetItem(conversations, idx);
conversations = conversations;
}
function reset() {
systemMessage.content = '';
conversations = conversations.map((conversation) => {
conversation.messages = [...startMessages];
return conversation;
});
}
function abort() {
if (abortControllers.length) {
for (const abortController of abortControllers) {
abortController.abort();
}
abortControllers = [];
}
loading = false;
waitForNonStreaming = false;
}
async function runInference(conversation: Conversation) {
const startTime = performance.now();
const hf = createHfInference(hfToken);
const requestMessages = prepareRequestMessages(systemMessage, conversation.messages);
if (conversation.config.streaming) {
const streamingMessage = { role: 'assistant', content: '' };
conversation.messages = [...conversation.messages, streamingMessage];
const abortController = new AbortController();
abortControllers.push(abortController);
await handleStreamingResponse(
hf,
conversation.model,
requestMessages,
conversation.config.temperature,
conversation.config.maxTokens,
(content) => {
if (streamingMessage) {
streamingMessage.content = content;
conversation.messages = [...conversation.messages];
conversations = conversations;
}
},
abortController
);
} else {
waitForNonStreaming = true;
const newMessage = await handleNonStreamingResponse(
hf,
conversation.model,
requestMessages,
conversation.config.temperature,
conversation.config.maxTokens,
);
// check if the user did not abort the request
if (waitForNonStreaming) {
conversation.messages = [...conversation.messages, newMessage];
conversations = conversations;
}
}
const endTime = performance.now();
latency = Math.round(endTime - startTime);
}
async function submit() {
// // last message has to be from user
// if (currentConversation.messages?.at(-1)?.role !== 'user') {
// addMessage();
// return;
// }
if (!hfToken) {
showTokenModal = true;
return;
}
(document.activeElement as HTMLElement).blur();
loading = true;
try {
const promises = conversations.map((conversation) => runInference(conversation));
await Promise.all(promises);
addMessage();
} catch (error) {
if (error.name !== 'AbortError') {
alert('error: ' + (error as Error).message);
}
} finally {
loading = false;
abortControllers = [];
}
}
function onKeydown(event: KeyboardEvent) {
if (!event.shiftKey && event.key === 'Enter') {
submit();
}
}
</script>
<svelte:window on:keydown={onKeydown} />
{#if showTokenModal}
<PlaygroundTokenModal
on:close={() => (showTokenModal = false)}
on:submit={(e) => {
const formData = new FormData(e.target);
hfToken = formData.get('hf-token');
submit();
showTokenModal = false;
}}
/>
{/if}
<div
class="w-dvh grid divide-gray-200 overflow-hidden bg-gray-100/50 max-md:divide-y md:h-dvh dark:[color-scheme:dark]
{conversations.length === 1
? 'md:grid-cols-[clamp(220px,20%,350px),minmax(0,1fr),clamp(270px,25%,300px)]'
: 'md:grid-cols-[clamp(220px,20%,350px),minmax(0,1fr),0]'}
dark:divide-gray-800 dark:bg-gray-900 dark:text-gray-300"
>
<div class=" flex flex-col overflow-y-auto py-3 pr-3">
<div
class="relative flex flex-1 flex-col gap-6 overflow-y-hidden rounded-r-xl border-x border-y border-gray-200/80 bg-gradient-to-b from-white via-white p-3 shadow-sm dark:border-white/5 dark:from-gray-800/40 dark:via-gray-800/40"
>
<div class="pb-2 text-sm font-semibold">SYSTEM</div>
<textarea
name=""
id=""
placeholder="Enter a custom prompt"
bind:value={systemMessage.content}
class="absolute inset-x-0 bottom-0 h-full resize-none bg-transparent px-3 pt-10 text-sm outline-none"
></textarea>
</div>
</div>
<div class="relative divide-y divide-gray-200 pt-3 dark:divide-gray-800">
<div
class="flex h-[calc(100dvh-5rem)] divide-x divide-gray-200 {conversations.length === 2
? '*:w-1/2'
: conversations.length == 3
? '*:w-1/3'
: '*:w-full'} dark:divide-gray-800"
>
{#each conversations as conversation, index}
<Conversation
{loading}
{conversation}
{index}
{viewCode}
sideBySide={conversations.length > 1}
on:addMessage={addMessage}
on:messageValueChanged={(e) => {
const { conversationIdx, messageIdx, value } = e.detail;
updateMessage(value, conversationIdx, messageIdx);
}}
on:deleteMessage={(e) => deleteMessage(e.detail)}
on:deleteConversation={(e) => deleteConversation(e.detail)}
/>
{/each}
</div>
<div
class="fixed inset-x-0 bottom-0 flex h-20 items-center gap-2 overflow-hidden whitespace-nowrap px-3 md:absolute"
>
<button
type="button"
class="flex h-[39px] flex-none gap-2 rounded-lg border border-gray-200 bg-white px-3 py-2.5 text-sm font-medium text-gray-900 hover:bg-gray-100 hover:text-blue-700 focus:z-10 focus:outline-none focus:ring-4 focus:ring-gray-100 dark:border-gray-600 dark:bg-gray-800 dark:text-gray-400 dark:hover:bg-gray-700 dark:hover:text-white dark:focus:ring-gray-700"
>
<div
class="flex size-5 items-center justify-center rounded border border-black/5 bg-black/5 text-xs"
>
<svg
width="1em"
height="1em"
viewBox="0 0 24 25"
fill="none"
xmlns="http://www.w3.org/2000/svg"
>
<path
fill-rule="evenodd"
clip-rule="evenodd"
d="M5.41 9.41L4 8L12 0L20 8L18.59 9.41L13 3.83L13 17.5H11L11 3.83L5.41 9.41ZM22 17.5V23H2V17.5H0V23C0 23.5304 0.210714 24.0391 0.585786 24.4142C0.960859 24.7893 1.46957 25 2 25H22C22.5304 25 23.0391 24.7893 23.4142 24.4142C23.7893 24.0391 24 23.5304 24 23V17.5H22Z"
fill="currentColor"
/>
</svg>
</div>
Share</button
>
<button
type="button"
on:click={reset}
class="flex size-[39px] flex-none items-center justify-center rounded-lg border border-gray-200 bg-white text-sm font-medium text-gray-900 hover:bg-gray-100 hover:text-blue-700 focus:z-10 focus:outline-none focus:ring-4 focus:ring-gray-100 dark:border-gray-600 dark:bg-gray-800 dark:text-gray-400 dark:hover:bg-gray-700 dark:hover:text-white dark:focus:ring-gray-700"
><svg xmlns="http://www.w3.org/2000/svg" width="1em" height="1em" viewBox="0 0 32 32"
><path fill="currentColor" d="M12 12h2v12h-2zm6 0h2v12h-2z" /><path
fill="currentColor"
d="M4 6v2h2v20a2 2 0 0 0 2 2h16a2 2 0 0 0 2-2V8h2V6zm4 22V8h16v20zm4-26h8v2h-8z"
/></svg
></button
>
<div class="flex-1 items-center justify-center text-center text-sm text-gray-500">
<span class="max-xl:hidden">0 tokens · Latency {latency}ms</span>
</div>
<button
type="button"
on:click={() => (viewCode = !viewCode)}
class="flex h-[39px] items-center gap-2 rounded-lg border border-gray-200 bg-white px-3 py-2.5 text-sm font-medium text-gray-900 hover:bg-gray-100 hover:text-blue-700 focus:z-10 focus:outline-none focus:ring-4 focus:ring-gray-100 dark:border-gray-600 dark:bg-gray-800 dark:text-gray-400 dark:hover:bg-gray-700 dark:hover:text-white dark:focus:ring-gray-700"
>
<svg
xmlns="http://www.w3.org/2000/svg"
width="1em"
height="1em"
class="text-base"
viewBox="0 0 32 32"
><path
fill="currentColor"
d="m31 16l-7 7l-1.41-1.41L28.17 16l-5.58-5.59L24 9l7 7zM1 16l7-7l1.41 1.41L3.83 16l5.58 5.59L8 23l-7-7zm11.42 9.484L17.64 6l1.932.517L14.352 26z"
/></svg
>
{!viewCode ? 'View Code' : 'Hide Code'}</button
>
<button
on:click={() => {
viewCode = false;
loading ? abort() : submit();
}}
type="button"
class="flex h-[39px] w-24 items-center justify-center gap-2 rounded-lg px-5 py-2.5 text-sm font-medium text-white focus:outline-none focus:ring-4 focus:ring-gray-300 dark:border-gray-700 dark:focus:ring-gray-700 {loading
? 'bg-red-900 hover:bg-red-800 dark:bg-red-600 dark:hover:bg-red-700'
: 'bg-black hover:bg-gray-900 dark:bg-blue-600 dark:hover:bg-blue-700'}"
>
{#if loading}
<div class="flex flex-none items-center gap-[3px]">
<span class="mr-2">Cancel</span>
<div
class="h-1 w-1 flex-none animate-bounce rounded-full bg-gray-500 dark:bg-gray-100"
style="animation-delay: 0.25s;"
/>
<div
class="h-1 w-1 flex-none animate-bounce rounded-full bg-gray-500 dark:bg-gray-100"
style="animation-delay: 0.5s;"
/>
<div
class="h-1 w-1 flex-none animate-bounce rounded-full bg-gray-500 dark:bg-gray-100"
style="animation-delay: 0.75s;"
/>
</div>
{:else}
Run <span
class="inline-flex gap-0.5 rounded border border-white/20 bg-white/10 px-0.5 text-xs text-white/70"
>↵</span
>
{/if}
</button>
</div>
</div>
{#if conversations.length === 1}
<div class="flex flex-col p-3">
<div
class="flex flex-1 flex-col gap-6 overflow-y-hidden rounded-xl border border-gray-200/80 bg-gradient-to-b from-white via-white p-3 shadow-sm dark:border-white/5 dark:from-gray-800/40 dark:via-gray-800/40"
>
<PlaygroundModelSelector
compatibleModels={models}
bind:currentModel={conversations[0].model}
/>
<div
class="group relative -mt-4 flex h-[26px] w-full items-center justify-center gap-2 rounded-lg bg-black px-5 text-sm text-white hover:bg-gray-900 focus:outline-none focus:ring-4 focus:ring-gray-300 dark:border-gray-700 dark:bg-blue-600 dark:hover:bg-blue-700 dark:focus:ring-gray-700"
>
Compare with...
<svg
class="ml-0.5 flex-none opacity-50 group-hover:opacity-100"
xmlns="http://www.w3.org/2000/svg"
xmlns:xlink="http://www.w3.org/1999/xlink"
aria-hidden="true"
role="img"
width="1em"
height="1em"
preserveAspectRatio="xMidYMid meet"
viewBox="0 0 24 24"
><path
d="M16.293 9.293L12 13.586L7.707 9.293l-1.414 1.414L12 16.414l5.707-5.707z"
fill="currentColor"
></path></svg
>
<select
class="absolute inset-0 border-none bg-white text-base opacity-0 outline-none"
on:change|preventDefault={(e) => {
conversations = [
...conversations,
{
id: String(Math.random()),
model: e.target.value,
config: { temperature: 0.5, maxTokens: 2048, streaming: true },
messages: [...conversations[0].messages]
}
];
}}
>
{#each models as model}
<option value={model.id}>{model.id}</option>
{/each}
</select>
</div>
<PlaygroundOptions bind:config={conversations[0].config} />
<div class="mt-auto">
<div class="mb-3 flex items-center justify-between gap-2">
<label
for="default-range"
class="block text-sm font-medium text-gray-900 dark:text-white">API Quota</label
>
<span
class="rounded bg-gray-100 px-1.5 py-0.5 text-xs font-medium text-gray-800 dark:bg-gray-700 dark:text-gray-300"
>Free</span
>
<div class="ml-auto w-12 text-right text-sm">76%</div>
</div>
<div class="h-2 w-full rounded-full bg-gray-200 dark:bg-gray-700">
<div class="h-2 rounded-full bg-black dark:bg-gray-400" style="width: 75%"></div>
</div>
</div>
</div>
</div>
{/if}
</div>
|