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paseo/packages/app/src/components/add-host-modal.tsx
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TypeScript

import { useCallback, useMemo, useRef, useState } from "react";
import { Alert, Pressable, Text, TextInput, View } from "react-native";
import { StyleSheet, UnistylesRuntime, useUnistyles } from "react-native-unistyles";
import { BottomSheetTextInput } from "@gorhom/bottom-sheet";
import { Link2 } from "lucide-react-native";
import { useDaemonRegistry, type HostProfile } from "@/contexts/daemon-registry-context";
import { normalizeHostPort } from "@/utils/daemon-endpoints";
import { DaemonConnectionTestError, testDaemonEndpointConnection } from "@/utils/test-daemon-connection";
import { AdaptiveModalSheet } from "./adaptive-modal-sheet";
const styles = StyleSheet.create((theme) => ({
field: {
gap: theme.spacing[2],
},
label: {
color: theme.colors.foregroundMuted,
fontSize: theme.fontSize.sm,
fontWeight: theme.fontWeight.medium,
},
input: {
backgroundColor: theme.colors.surface2,
borderRadius: theme.borderRadius.lg,
paddingHorizontal: theme.spacing[4],
paddingVertical: theme.spacing[3],
color: theme.colors.foreground,
borderWidth: 1,
borderColor: theme.colors.border,
},
actions: {
flexDirection: "row",
gap: theme.spacing[3],
marginTop: theme.spacing[2],
},
button: {
flex: 1,
paddingVertical: theme.spacing[3],
borderRadius: theme.borderRadius.lg,
alignItems: "center",
justifyContent: "center",
backgroundColor: theme.colors.surface2,
},
primaryButton: {
backgroundColor: theme.colors.palette.blue[500],
},
buttonText: {
color: theme.colors.foreground,
fontWeight: theme.fontWeight.semibold,
},
primaryButtonText: {
color: theme.colors.palette.white,
},
helper: {
color: theme.colors.foregroundMuted,
fontSize: theme.fontSize.sm,
},
error: {
color: theme.colors.destructive,
fontSize: theme.fontSize.sm,
},
connectRow: {
flexDirection: "row",
alignItems: "center",
justifyContent: "center",
gap: theme.spacing[2],
},
}));
function isHostPortOnly(raw: string): boolean {
return !raw.includes("://") && !raw.includes("/");
}
function normalizeTransportMessage(message: string | null | undefined): string | null {
if (!message) return null;
const trimmed = message.trim();
if (!trimmed) return null;
return trimmed;
}
function formatTechnicalTransportDetails(details: Array<string | null>): string | null {
const unique = Array.from(
new Set(
details
.map((value) => normalizeTransportMessage(value))
.filter((value): value is string => Boolean(value))
.map((value) => value.trim())
.filter((value) => value.length > 0)
)
);
if (unique.length === 0) return null;
const allGeneric = unique.every((value) => {
const lower = value.toLowerCase();
return lower === "transport error" || lower === "transport closed";
});
if (allGeneric) {
return `${unique[0]} (no additional details provided)`;
}
return unique.join(" — ");
}
function buildConnectionFailureCopy(endpoint: string, error: unknown): { title: string; detail: string | null; raw: string | null } {
const title = `We failed to connect to ${endpoint}.`;
const raw = (() => {
if (error instanceof DaemonConnectionTestError) {
return (
formatTechnicalTransportDetails([error.reason, error.lastError]) ??
normalizeTransportMessage(error.message)
);
}
if (error instanceof Error) {
return normalizeTransportMessage(error.message);
}
return null;
})();
const rawLower = raw?.toLowerCase() ?? "";
let detail: string | null = null;
if (rawLower.includes("timed out")) {
detail = "Connection timed out. Check the host/port and your network.";
} else if (
rawLower.includes("econnrefused") ||
rawLower.includes("connection refused") ||
rawLower.includes("err_connection_refused")
) {
detail = "Connection was refused. Is the daemon running on that host and port?";
} else if (rawLower.includes("enotfound") || rawLower.includes("not found")) {
detail = "Host not found. Check the hostname and try again.";
} else if (rawLower.includes("ehostunreach") || rawLower.includes("host is unreachable")) {
detail = "Host is unreachable. Check your network and firewall.";
} else if (rawLower.includes("certificate") || rawLower.includes("tls") || rawLower.includes("ssl")) {
detail = "TLS/certificate error. This app expects a daemon reachable over the local network or via relay.";
} else if (raw) {
detail = "Unable to connect. Check the host/port and that the daemon is reachable.";
} else {
detail = "Unable to connect. Check the host/port and that the daemon is reachable.";
}
return { title, detail, raw };
}
export interface AddHostModalProps {
visible: boolean;
onClose: () => void;
onSaved?: (profile: HostProfile) => void;
}
export function AddHostModal({ visible, onClose, onSaved }: AddHostModalProps) {
const { theme } = useUnistyles();
const { addDaemon } = useDaemonRegistry();
const isMobile =
UnistylesRuntime.breakpoint === "xs" || UnistylesRuntime.breakpoint === "sm";
const InputComponent = useMemo(() => (isMobile ? BottomSheetTextInput : TextInput), [isMobile]);
const labelInputRef = useRef<TextInput>(null);
const hostInputRef = useRef<TextInput>(null);
const [label, setLabel] = useState("");
const [endpointRaw, setEndpointRaw] = useState("");
const [isSaving, setIsSaving] = useState(false);
const [errorMessage, setErrorMessage] = useState("");
const handleClose = useCallback(() => {
if (isSaving) return;
setLabel("");
setEndpointRaw("");
setErrorMessage("");
onClose();
}, [isSaving, onClose]);
const handleSave = useCallback(async () => {
if (isSaving) return;
const raw = endpointRaw.trim();
if (!raw) {
setErrorMessage("Host is required");
return;
}
if (!isHostPortOnly(raw)) {
setErrorMessage("Enter host:port only (no ws://, no /ws)");
return;
}
let endpoint: string;
try {
endpoint = normalizeHostPort(raw);
} catch (error) {
const message = error instanceof Error ? error.message : "Invalid host:port";
setErrorMessage(message);
return;
}
try {
setIsSaving(true);
setErrorMessage("");
await testDaemonEndpointConnection(endpoint);
const profile = await addDaemon({
label: label.trim(),
endpoints: [endpoint],
});
onSaved?.(profile);
handleClose();
} catch (error) {
const { title, detail, raw } = buildConnectionFailureCopy(endpoint, error);
const combined =
raw && detail && raw !== detail
? `${title}\n${detail}\nDetails: ${raw}`
: detail
? `${title}\n${detail}`
: title;
setErrorMessage(combined);
if (!isMobile) {
// Desktop/web: also surface it as a dialog for quick visibility.
Alert.alert("Connection failed", combined);
}
} finally {
setIsSaving(false);
}
}, [addDaemon, endpointRaw, handleClose, isMobile, isSaving, label, onSaved]);
return (
<AdaptiveModalSheet title="Direct connection" visible={visible} onClose={handleClose} testID="add-host-modal">
<Text style={styles.helper}>Connect to a daemon by entering host:port.</Text>
<View style={styles.field}>
<Text style={styles.label}>Label (optional)</Text>
<InputComponent
ref={labelInputRef as any}
value={label}
onChangeText={setLabel}
placeholder="My Host"
placeholderTextColor={theme.colors.foregroundMuted}
style={styles.input}
autoCapitalize="none"
autoCorrect={false}
editable={!isSaving}
returnKeyType="next"
blurOnSubmit={false}
onSubmitEditing={() => hostInputRef.current?.focus()}
/>
</View>
<View style={styles.field}>
<Text style={styles.label}>Host</Text>
<InputComponent
ref={hostInputRef as any}
value={endpointRaw}
onChangeText={setEndpointRaw}
placeholder="host:6767"
placeholderTextColor={theme.colors.foregroundMuted}
style={styles.input}
autoCapitalize="none"
autoCorrect={false}
keyboardType="url"
editable={!isSaving}
returnKeyType="done"
onSubmitEditing={() => void handleSave()}
/>
{errorMessage ? <Text style={styles.error}>{errorMessage}</Text> : null}
</View>
<View style={styles.actions}>
<Pressable style={styles.button} onPress={handleClose} disabled={isSaving}>
<Text style={styles.buttonText}>Cancel</Text>
</Pressable>
<Pressable
style={[styles.button, styles.primaryButton, isSaving ? { opacity: 0.7 } : null]}
onPress={() => void handleSave()}
disabled={isSaving}
>
<View style={styles.connectRow}>
<Link2 size={16} color={theme.colors.palette.white} />
<Text style={[styles.buttonText, styles.primaryButtonText]}>
{isSaving ? "Connecting..." : "Connect & Save"}
</Text>
</View>
</Pressable>
</View>
</AdaptiveModalSheet>
);
}