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| | import React, { useCallback, useEffect, useRef, useState } from "react";
| | import { ActionSheetIOS, Alert, KeyboardAvoidingView, Platform, Pressable, Text, View } from "react-native";
| | import { SafeAreaView } from "react-native-safe-area-context";
| | import { router } from "expo-router";
| | import { useChat } from "../contexts/ChatContext";
| | import { useConnection } from "../contexts/ConnectionContext";
| | import { useTheme } from "../contexts/ThemeContext";
| | import { MessageList } from "../components/chat/MessageList";
| | import { InputBar } from "../components/chat/InputBar";
| | import { CommandBar, TextModeCommandBar } from "../components/chat/CommandBar";
| | import { ImageCaptionModal } from "../components/chat/ImageCaptionModal";
| | import { StatusDot } from "../components/ui/StatusDot";
| | import { SessionDrawer } from "../components/SessionDrawer";
| | import { playAudio, stopPlayback, isPlaying, onPlayingChange } from "../services/audio";
| |
| | interface StagedImage {
| | base64: string;
| | uri: string;
| | mimeType: string;
| | }
| |
| | export default function ChatScreen() {
| | const { messages, sendTextMessage, sendVoiceMessage, sendImageMessage, clearMessages, requestScreenshot, sessions } =
| | useChat();
| | const { status } = useConnection();
| | const { colors, mode, cycleMode } = useTheme();
| | const themeIcon = mode === "dark" ? "🌙" : mode === "light" ? "☀️" : "📱";
| | const activeSessionName = sessions.find((s) => s.isActive)?.name ?? "PAILot";
| | const [isTextMode, setIsTextMode] = useState(false);
| | const [showSessions, setShowSessions] = useState(false);
| | const [audioPlaying, setAudioPlaying] = useState(false);
| | const [stagedImage, setStagedImage] = useState<StagedImage | null>(null);
| |
| | useEffect(() => {
| | return onPlayingChange(setAudioPlaying);
| | }, []);
| |
| | const handleScreenshot = useCallback(() => {
| | requestScreenshot();
| | }, [requestScreenshot]);
| |
| | const handleHelp = useCallback(() => {
| | sendTextMessage("/h");
| | }, [sendTextMessage]);
| |
| | const handleNavigate = useCallback(() => {
| | router.push("/navigate");
| | }, []);
| |
| | const handleClear = useCallback(() => {
| | clearMessages();
| | }, [clearMessages]);
| |
| | // Resolve a picked asset into a StagedImage
| | const stageAsset = useCallback(async (asset: { base64?: string | null; uri: string; mimeType?: string | null }) => {
| | const mimeType = asset.mimeType ?? (asset.uri.endsWith(".png") ? "image/png" : "image/jpeg");
| | let base64 = asset.base64 ?? "";
| | if (!base64 && asset.uri) {
| | const { readAsStringAsync } = await import("expo-file-system/legacy");
| | base64 = await readAsStringAsync(asset.uri, { encoding: "base64" });
| | }
| | if (base64) {
| | setStagedImage({ base64, uri: asset.uri, mimeType });
| | }
| | }, []);
| |
| | const pickFromLibrary = useCallback(async () => {
| | try {
| | const ImagePicker = await import("expo-image-picker");
| | const { status } = await ImagePicker.requestMediaLibraryPermissionsAsync();
| | if (status !== "granted") {
| | Alert.alert("Permission needed", "Please allow photo library access in Settings.");
| | return;
| | }
| | const result = await ImagePicker.launchImageLibraryAsync({
| | mediaTypes: ["images"],
| | quality: 0.7,
| | base64: true,
| | });
| | if (result.canceled || !result.assets?.[0]) return;
| | await stageAsset(result.assets[0]);
| | } catch (err: any) {
| | Alert.alert("Image Error", err?.message ?? String(err));
| | }
| | }, [stageAsset]);
| |
| | const pickFromCamera = useCallback(async () => {
| | try {
| | const ImagePicker = await import("expo-image-picker");
| | const { status } = await ImagePicker.requestCameraPermissionsAsync();
| | if (status !== "granted") {
| | Alert.alert("Permission needed", "Please allow camera access in Settings.");
| | return;
| | }
| | const result = await ImagePicker.launchCameraAsync({
| | quality: 0.7,
| | base64: true,
| | });
| | if (result.canceled || !result.assets?.[0]) return;
| | await stageAsset(result.assets[0]);
| | } catch (err: any) {
| | Alert.alert("Camera Error", err?.message ?? String(err));
| | }
| | }, [stageAsset]);
| |
| | const handlePickImage = useCallback(() => {
| | if (Platform.OS === "ios") {
| | ActionSheetIOS.showActionSheetWithOptions(
| | {
| | options: ["Cancel", "Take Photo", "Choose from Library"],
| | cancelButtonIndex: 0,
| | },
| | (index) => {
| | if (index === 1) pickFromCamera();
| | else if (index === 2) pickFromLibrary();
| | },
| | );
| | } else {
| | // Android: just open library (camera is accessible from there)
| | pickFromLibrary();
| | }
| | }, [pickFromCamera, pickFromLibrary]);
| |
| | const handleImageSend = useCallback(
| | (caption: string) => {
| | if (!stagedImage) return;
| | sendImageMessage(stagedImage.base64, caption, stagedImage.mimeType);
| | setStagedImage(null);
| | },
| | [stagedImage, sendImageMessage],
| | );
| |
| | const handleReplay = useCallback(() => {
| | if (isPlaying()) {
| | stopPlayback();
| | return;
| | }
| | for (let i = messages.length - 1; i >= 0; i--) {
| | const msg = messages[i];
| | if (msg.role === "assistant") {
| | if (msg.audioUri) {
| | playAudio(msg.audioUri).catch(() => {});
| | }
| | return;
| | }
| | }
| | }, [messages]);
| |
| | return (
| | <SafeAreaView style={{ flex: 1, backgroundColor: colors.bg }} edges={["top", "bottom"]}>
| | <KeyboardAvoidingView
| | style={{ flex: 1 }}
| | behavior={Platform.OS === "ios" ? "padding" : undefined}
| | keyboardVerticalOffset={0}
| | >
| | {/* Header */}
| | <View
| | style={{
| | flexDirection: "row",
| | alignItems: "center",
| | justifyContent: "space-between",
| | paddingHorizontal: 16,
| | paddingVertical: 12,
| | borderBottomWidth: 1,
| | borderBottomColor: colors.border,
| | }}
| | >
| | <View style={{ flexDirection: "row", alignItems: "center", flex: 1, gap: 10 }}>
| | <Pressable
| | onPress={() => setShowSessions(true)}
| | hitSlop={{ top: 8, bottom: 8, left: 8, right: 8 }}
| | style={({ pressed }) => ({
| | width: 36,
| | height: 36,
| | alignItems: "center",
| | justifyContent: "center",
| | borderRadius: 18,
| | backgroundColor: pressed ? colors.bgTertiary : colors.bgTertiary + "80",
| | })}
| | >
| | <Text style={{ color: colors.textSecondary, fontSize: 18 }}>☰</Text>
| | </Pressable>
| | <Pressable
| | onPress={() => setShowSessions(true)}
| | style={{ flexDirection: "row", alignItems: "center", gap: 8, flex: 1 }}
| | hitSlop={{ top: 6, bottom: 6, left: 0, right: 6 }}
| | >
| | <Text
| | style={{
| | color: colors.text,
| | fontSize: 22,
| | fontWeight: "800",
| | letterSpacing: -0.5,
| | flexShrink: 1,
| | }}
| | numberOfLines={1}
| | >
| | {activeSessionName}
| | </Text>
| | <StatusDot status={status} size={8} />
| | </Pressable>
| | </View>
| |
| | <View style={{ flexDirection: "row", alignItems: "center", gap: 8 }}>
| | <Pressable
| | onPress={cycleMode}
| | hitSlop={{ top: 6, bottom: 6, left: 6, right: 6 }}
| | style={({ pressed }) => ({
| | width: 36,
| | height: 36,
| | alignItems: "center",
| | justifyContent: "center",
| | borderRadius: 18,
| | backgroundColor: pressed ? colors.bgTertiary : colors.bgTertiary + "80",
| | })}
| | >
| | <Text style={{ fontSize: 15 }}>{themeIcon}</Text>
| | </Pressable>
| | <Pressable
| | onPress={() => router.push("/settings")}
| | hitSlop={{ top: 6, bottom: 6, left: 6, right: 6 }}
| | style={{
| | width: 36,
| | height: 36,
| | alignItems: "center",
| | justifyContent: "center",
| | borderRadius: 18,
| | backgroundColor: colors.bgTertiary,
| | }}
| | >
| | <Text style={{ fontSize: 15 }}>⚙️</Text>
| | </Pressable>
| | </View>
| | </View>
| |
| | {/* Message list */}
| | <View style={{ flex: 1 }}>
| | {messages.length === 0 ? (
| | <View style={{ flex: 1, alignItems: "center", justifyContent: "center", gap: 16 }}>
| | <View
| | style={{
| | width: 80,
| | height: 80,
| | borderRadius: 40,
| | backgroundColor: colors.bgTertiary,
| | alignItems: "center",
| | justifyContent: "center",
| | borderWidth: 1,
| | borderColor: colors.border,
| | }}
| | >
| | <Text style={{ fontSize: 36 }}>🛩</Text>
| | </View>
| | <View style={{ alignItems: "center", gap: 6 }}>
| | <Text style={{ color: colors.text, fontSize: 20, fontWeight: "700" }}>
| | PAILot
| | </Text>
| | <Text
| | style={{
| | color: colors.textMuted,
| | fontSize: 14,
| | textAlign: "center",
| | paddingHorizontal: 40,
| | lineHeight: 20,
| | }}
| | >
| | Voice-first AI communicator.{"\n"}Tap the mic to start talking.
| | </Text>
| | </View>
| | </View>
| | ) : (
| | <MessageList messages={messages} />
| | )}
| | </View>
| |
| | {/* Command bar */}
| | {isTextMode ? (
| | <TextModeCommandBar
| | onScreenshot={handleScreenshot}
| | onNavigate={handleNavigate}
| | onPhoto={handlePickImage}
| | onHelp={handleHelp}
| | onClear={handleClear}
| | />
| | ) : (
| | <CommandBar
| | onScreenshot={handleScreenshot}
| | onNavigate={handleNavigate}
| | onPhoto={handlePickImage}
| | onClear={handleClear}
| | />
| | )}
| |
| | {/* Input bar */}
| | <InputBar
| | onSendText={sendTextMessage}
| | onVoiceRecorded={sendVoiceMessage}
| | onReplay={handleReplay}
| | isTextMode={isTextMode}
| | onToggleMode={() => setIsTextMode((v) => !v)}
| | audioPlaying={audioPlaying}
| | />
| |
| | </KeyboardAvoidingView>
| |
| | {/* Image caption modal — WhatsApp-style full-screen preview */}
| | <ImageCaptionModal
| | visible={!!stagedImage}
| | imageUri={stagedImage ? `data:${stagedImage.mimeType};base64,${stagedImage.base64}` : ""}
| | onSend={handleImageSend}
| | onCancel={() => setStagedImage(null)}
| | />
| |
| | {/* Session drawer — absolute overlay outside KAV */}
| | <SessionDrawer
| | visible={showSessions}
| | onClose={() => setShowSessions(false)}
| | />
| | </SafeAreaView>
| | );
| | }
|
|
