86 lines
2.9 KiB
TypeScript
86 lines
2.9 KiB
TypeScript
import { Suspense, useEffect, useMemo, useRef } from "react";
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import { useRouter } from "blitz";
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import clsx from "clsx";
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import { Direction } from "../../../db";
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import useConversation from "../hooks/use-conversation";
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import NewMessageArea from "./new-message-area";
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export default function Conversation() {
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const router = useRouter();
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const recipient = decodeURIComponent(router.params.recipient);
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const conversation = useConversation(recipient)[0];
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const messages = useMemo(() => conversation?.messages ?? [], [conversation?.messages]);
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const messagesListRef = useRef<HTMLUListElement>(null);
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useEffect(() => {
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messagesListRef.current?.querySelector("li:last-child")?.scrollIntoView();
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}, [messages, messagesListRef]);
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return (
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<>
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<div className="flex flex-col space-y-6 p-6 pt-12 pb-16">
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<ul ref={messagesListRef}>
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{messages.length === 0 ? "empty state" : null}
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{messages.map((message, index) => {
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const isOutbound = message.direction === Direction.Outbound;
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const nextMessage = messages![index + 1];
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const previousMessage = messages![index - 1];
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const isNextMessageFromSameSender = message.from === nextMessage?.from;
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const isPreviousMessageFromSameSender = message.from === previousMessage?.from;
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const messageSentAt = new Date(message.sentAt);
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const previousMessageSentAt = previousMessage ? new Date(previousMessage.sentAt) : null;
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const quarter = Math.floor(messageSentAt.getMinutes() / 15);
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const sameQuarter =
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previousMessage &&
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messageSentAt.getTime() - previousMessageSentAt!.getTime() < 15 * 60 * 1000 &&
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quarter === Math.floor(previousMessageSentAt!.getMinutes() / 15);
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const shouldGroupMessages = previousMessageSentAt && sameQuarter;
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return (
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<li key={message.id}>
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{(!isPreviousMessageFromSameSender || !shouldGroupMessages) && (
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<div className="flex py-2 space-x-1 text-xs justify-center">
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<strong>
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{new Date(message.sentAt).toLocaleDateString("en-US", {
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weekday: "long",
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day: "2-digit",
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month: "short",
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})}
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</strong>
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<span>
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{new Date(message.sentAt).toLocaleTimeString("en-US", {
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hour: "2-digit",
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minute: "2-digit",
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})}
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</span>
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</div>
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)}
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<div
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className={clsx(
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isNextMessageFromSameSender ? "pb-1" : "pb-2",
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isOutbound ? "text-right" : "text-left",
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)}
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>
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<span
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className={clsx(
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"inline-block text-left w-[fit-content] p-2 rounded-lg text-white",
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isOutbound ? "bg-[#3194ff] rounded-br-none" : "bg-black rounded-bl-none",
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)}
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>
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{message.content}
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</span>
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</div>
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</li>
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);
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})}
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</ul>
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</div>
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<Suspense fallback={null}>
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<NewMessageArea recipient={recipient} />
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</Suspense>
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</>
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);
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}
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