byGalax
419 lines
13 KiB
TypeScript
419 lines
13 KiB
TypeScript
import { chat } from '@chat-app/shared';
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import type {
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ConversationSummary,
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DecryptedMessage,
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MessageReaction,
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} from '@chat-app/shared/chat';
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import { Stack, useLocalSearchParams } from 'expo-router';
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import { useCallback, useEffect, useMemo, useRef, useState } from 'react';
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import {
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ActionSheetIOS,
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ActivityIndicator,
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Alert,
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FlatList,
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KeyboardAvoidingView,
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Platform,
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Pressable,
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StyleSheet,
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Text,
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TextInput,
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View,
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} from 'react-native';
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import { MessageActionsSheet } from '../../../components/MessageActionsSheet';
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import { MessageBubble } from '../../../components/MessageBubble';
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import { useAuth } from '../../../lib/authContext';
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import { captureFromCamera, pickFromLibrary, type PickedImage } from '../../../lib/imagePicker';
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import { supabase } from '../../../lib/supabase';
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import { colors } from '../../../theme/colors';
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export default function ConversationDetail() {
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const { id } = useLocalSearchParams<{ id: string }>();
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const { user, device, ownPrivateKey } = useAuth();
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const [conversation, setConversation] = useState<ConversationSummary | null>(null);
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const [messages, setMessages] = useState<DecryptedMessage[] | null>(null);
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const [reactions, setReactions] = useState<Map<string, MessageReaction[]>>(new Map());
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const [text, setText] = useState('');
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const [sending, setSending] = useState(false);
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const [error, setError] = useState<string | null>(null);
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const [replyTo, setReplyTo] = useState<DecryptedMessage | null>(null);
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const [activeMessage, setActiveMessage] = useState<DecryptedMessage | null>(null);
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const listRef = useRef<FlatList<DecryptedMessage>>(null);
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const load = useCallback(async () => {
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if (!id || !device || !ownPrivateKey) return;
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setError(null);
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try {
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const all = await chat.listConversations(supabase);
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setConversation(all.find((c) => c.id === id) ?? null);
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const ciphers = await chat.fetchConversationMessages(supabase, id, 50);
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const decrypted = await chat.decryptMessages({
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client: supabase,
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messages: ciphers,
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ownDeviceId: device.id,
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ownPrivateKey,
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});
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setMessages(decrypted);
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const rows = await chat.listReactionsForMessages(
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supabase,
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decrypted.map((m) => m.id),
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);
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const map = new Map<string, MessageReaction[]>();
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for (const r of rows) {
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const arr = map.get(r.messageId) ?? [];
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arr.push(r);
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map.set(r.messageId, arr);
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}
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setReactions(map);
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} catch (err: unknown) {
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setError(err instanceof Error ? err.message : 'Nachrichten konnten nicht geladen werden');
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}
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}, [id, device, ownPrivateKey]);
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useEffect(() => {
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void load();
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}, [load]);
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const members = useMemo(() => conversation?.members ?? [], [conversation]);
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const senderName = useCallback(
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(senderId: string) => {
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if (senderId === user?.id) return 'Du';
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const m = members.find((mm) => mm.userId === senderId);
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return m?.profile?.displayName ?? m?.profile?.username ?? 'Unbekannt';
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},
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[members, user],
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);
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const title =
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conversation?.type === 'group'
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? (conversation.name ?? 'Gruppe')
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: (conversation?.peer?.displayName ?? '…');
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async function handleSendText() {
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if (!text.trim() || !user || !device || !ownPrivateKey || !id || sending) return;
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setSending(true);
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setError(null);
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const replyToId = replyTo?.id;
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try {
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await chat.sendEncryptedMessage({
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client: supabase,
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conversationId: id,
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plaintext: text.trim(),
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senderUserId: user.id,
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senderDeviceId: device.id,
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senderPrivateKey: ownPrivateKey,
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...(replyToId ? { replyToId } : {}),
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});
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setText('');
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setReplyTo(null);
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await load();
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} catch (err: unknown) {
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setError(err instanceof Error ? err.message : 'Senden fehlgeschlagen');
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} finally {
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setSending(false);
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}
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}
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async function sendImage(pick: PickedImage) {
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if (!user || !device || !ownPrivateKey || !id) return;
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setSending(true);
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setError(null);
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try {
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const resp = await fetch(pick.uri);
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const blob = await resp.blob();
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const result = await chat.encryptAndUploadAttachment({
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client: supabase,
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conversationId: id,
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file: blob,
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mimeType: pick.mimeType,
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sizeBytes: pick.sizeBytes,
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width: pick.width,
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height: pick.height,
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});
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await chat.sendEncryptedMessage({
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client: supabase,
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conversationId: id,
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plaintext: '',
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senderUserId: user.id,
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senderDeviceId: device.id,
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senderPrivateKey: ownPrivateKey,
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attachmentHandles: [result.handle],
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});
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await load();
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} catch (err: unknown) {
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setError(err instanceof Error ? err.message : 'Bild senden fehlgeschlagen');
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} finally {
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setSending(false);
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}
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}
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function openImageMenu() {
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if (Platform.OS === 'ios') {
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ActionSheetIOS.showActionSheetWithOptions(
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{ options: ['Foto aufnehmen', 'Aus Galerie wählen', 'Abbrechen'], cancelButtonIndex: 2 },
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async (idx) => {
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if (idx === 0) {
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const p = await captureFromCamera();
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if (p) await sendImage(p);
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} else if (idx === 1) {
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const p = await pickFromLibrary();
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if (p) await sendImage(p);
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}
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},
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);
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} else {
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Alert.alert('Bild senden', undefined, [
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{
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text: 'Foto aufnehmen',
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onPress: async () => {
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const p = await captureFromCamera();
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if (p) await sendImage(p);
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},
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},
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{
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text: 'Aus Galerie wählen',
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onPress: async () => {
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const p = await pickFromLibrary();
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if (p) await sendImage(p);
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},
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},
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{ text: 'Abbrechen', style: 'cancel' },
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]);
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}
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}
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async function handleReact(emoji: string, messageId: string) {
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if (!user) return;
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try {
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const mine = reactions.get(messageId)?.some((r) => r.userId === user.id && r.emoji === emoji);
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if (mine) {
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await chat.removeReaction(supabase, messageId, emoji);
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} else {
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await chat.addReaction(supabase, messageId, emoji);
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}
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const rows = await chat.listReactionsForMessages(
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supabase,
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(messages ?? []).map((m) => m.id),
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);
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const map = new Map<string, MessageReaction[]>();
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for (const r of rows) {
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const arr = map.get(r.messageId) ?? [];
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arr.push(r);
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map.set(r.messageId, arr);
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}
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setReactions(map);
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} catch (err: unknown) {
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setError(err instanceof Error ? err.message : 'Reaktion fehlgeschlagen');
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}
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}
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function handleDelete(messageId: string) {
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Alert.alert('Nachricht löschen', 'Diese Nachricht für alle löschen?', [
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{ text: 'Abbrechen', style: 'cancel' },
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{
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text: 'Löschen',
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style: 'destructive',
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onPress: async () => {
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try {
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await chat.softDeleteMessage(supabase, messageId);
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await load();
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} catch (err: unknown) {
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setError(err instanceof Error ? err.message : 'Löschen fehlgeschlagen');
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}
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},
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},
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]);
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}
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const parentLookup = useMemo(() => {
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const m = new Map<string, DecryptedMessage>();
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for (const msg of messages ?? []) m.set(msg.id, msg);
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return m;
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}, [messages]);
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return (
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<KeyboardAvoidingView
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style={styles.container}
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behavior={Platform.OS === 'ios' ? 'padding' : 'height'}
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keyboardVerticalOffset={Platform.OS === 'ios' ? 80 : 0}
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>
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<Stack.Screen
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options={{
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title,
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headerStyle: { backgroundColor: colors.bg },
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headerTitleStyle: { color: colors.text },
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headerBackTitle: 'Chats',
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}}
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/>
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{messages === null && !error && (
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<View style={styles.loading}>
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<ActivityIndicator color={colors.accent} />
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</View>
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)}
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{error && <Text style={styles.error}>{error}</Text>}
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{messages && (
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<FlatList
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ref={listRef}
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data={messages}
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keyExtractor={(m) => m.id}
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contentContainerStyle={styles.listContent}
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renderItem={({ item }) => {
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const parent = item.replyToId ? (parentLookup.get(item.replyToId) ?? null) : null;
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return (
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<MessageBubble
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message={item}
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mine={item.senderId === user?.id}
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senderName={senderName(item.senderId)}
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parent={parent}
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parentSenderName={parent ? senderName(parent.senderId) : ''}
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time={new Date(item.createdAt).toLocaleTimeString('de-DE', {
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hour: '2-digit',
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minute: '2-digit',
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})}
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reactions={reactions.get(item.id) ?? []}
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myUserId={user?.id ?? null}
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ownDeviceId={device?.id ?? null}
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ownPrivateKey={ownPrivateKey}
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onLongPress={() => setActiveMessage(item)}
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onToggleReaction={(emoji) => {
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void handleReact(emoji, item.id);
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}}
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/>
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);
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}}
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onContentSizeChange={() => listRef.current?.scrollToEnd({ animated: false })}
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/>
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)}
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{replyTo && (
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<View style={styles.replyBanner}>
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<View style={styles.replyBannerLeft}>
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<Text style={styles.replyBannerLabel}>
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Antwort an {senderName(replyTo.senderId)}
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</Text>
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<Text style={styles.replyBannerBody} numberOfLines={1}>
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{replyTo.plaintext ?? '…'}
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</Text>
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</View>
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<Pressable onPress={() => setReplyTo(null)} hitSlop={10}>
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<Text style={styles.replyBannerClose}>×</Text>
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</Pressable>
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</View>
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)}
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<View style={styles.inputRow}>
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<Pressable
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style={styles.plusBtn}
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onPress={openImageMenu}
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disabled={sending}
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hitSlop={6}
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>
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<Text style={styles.plusText}>＋</Text>
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</Pressable>
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<TextInput
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value={text}
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onChangeText={setText}
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placeholder="Nachricht schreiben…"
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placeholderTextColor={colors.textDim}
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style={styles.input}
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multiline
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editable={!sending}
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/>
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<Pressable
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style={[styles.sendBtn, (!text.trim() || sending) && styles.sendBtnDisabled]}
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disabled={!text.trim() || sending}
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onPress={handleSendText}
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>
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{sending ? (
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<ActivityIndicator color={colors.text} />
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) : (
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<Text style={styles.sendBtnText}>Senden</Text>
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)}
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</Pressable>
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</View>
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<MessageActionsSheet
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visible={activeMessage !== null}
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mine={activeMessage?.senderId === user?.id}
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onClose={() => setActiveMessage(null)}
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onReact={(emoji) => {
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if (activeMessage) void handleReact(emoji, activeMessage.id);
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}}
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onReply={() => {
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if (activeMessage) setReplyTo(activeMessage);
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}}
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onDelete={() => {
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if (activeMessage) handleDelete(activeMessage.id);
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}}
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/>
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</KeyboardAvoidingView>
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);
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}
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const styles = StyleSheet.create({
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container: { flex: 1, backgroundColor: colors.bg },
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loading: { flex: 1, alignItems: 'center', justifyContent: 'center' },
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error: { color: colors.danger, padding: 12, textAlign: 'center' },
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listContent: { padding: 12 },
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replyBanner: {
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flexDirection: 'row',
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alignItems: 'center',
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paddingHorizontal: 12,
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paddingVertical: 8,
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borderTopWidth: 1,
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borderTopColor: colors.border,
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backgroundColor: colors.surface,
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gap: 12,
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},
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replyBannerLeft: { flex: 1 },
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replyBannerLabel: { color: colors.accent, fontSize: 12, fontWeight: '700' },
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replyBannerBody: { color: colors.textMuted, fontSize: 13, marginTop: 2 },
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replyBannerClose: { color: colors.textMuted, fontSize: 22, paddingHorizontal: 6 },
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inputRow: {
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flexDirection: 'row',
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alignItems: 'flex-end',
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padding: 8,
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gap: 8,
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borderTopWidth: 1,
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borderTopColor: colors.border,
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backgroundColor: colors.surface,
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},
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plusBtn: {
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width: 40,
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height: 40,
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alignItems: 'center',
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justifyContent: 'center',
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backgroundColor: colors.bg,
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borderRadius: 10,
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borderColor: colors.border,
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borderWidth: 1,
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},
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plusText: { color: colors.text, fontSize: 20, lineHeight: 22 },
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input: {
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flex: 1,
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minHeight: 40,
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maxHeight: 120,
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color: colors.text,
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backgroundColor: colors.bg,
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borderColor: colors.border,
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borderWidth: 1,
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borderRadius: 10,
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paddingHorizontal: 12,
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paddingVertical: 10,
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fontSize: 15,
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},
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sendBtn: {
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backgroundColor: colors.accent,
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borderRadius: 10,
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paddingHorizontal: 16,
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height: 40,
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alignItems: 'center',
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justifyContent: 'center',
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},
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sendBtnDisabled: { opacity: 0.5 },
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sendBtnText: { color: colors.text, fontWeight: '600' },
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});
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