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<script lang="ts">
import type { Message } from "$lib/types/Message";
import { snapScrollToBottom } from "$lib/actions/snapScrollToBottom";
import ScrollToBottomBtn from "$lib/components/ScrollToBottomBtn.svelte";
import { tick } from "svelte";
import ChatIntroduction from "./ChatIntroduction.svelte";
import ChatMessage from "./ChatMessage.svelte";
export let messages: Message[];
export let loading: boolean;
export let pending: boolean;
let chatContainer: HTMLElement;
async function scrollToBottom() {
await tick();
chatContainer.scrollTop = chatContainer.scrollHeight;
}
// If last message is from user, scroll to bottom
$: if (messages.at(-1)?.from === "user") {
scrollToBottom();
}
</script>
<div
class="overflow-y-auto h-full scrollbar-custom mr-1"
use:snapScrollToBottom={messages}
bind:this={chatContainer}
>
<div class="max-w-3xl xl:max-w-4xl mx-auto px-5 pt-6 flex flex-col gap-5 sm:gap-8 h-full">
{#each messages as message, i}
<ChatMessage loading={loading && i === messages.length - 1} {message} />
{:else}
<ChatIntroduction on:message />
{/each}
{#if pending}
<ChatMessage message={{ from: "assistant", content: "" }} />
{/if}
<div class="h-32 flex-none" />
</div>
<ScrollToBottomBtn
class="max-md:hidden bottom-36 right-4 lg:right-10"
scrollNode={chatContainer}
/>
</div>
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