From 8ff94dc03ed25db3ecf64b7a1bcc1605041093d6 Mon Sep 17 00:00:00 2001
From: Mohamed Boudra <boudra.moha@gmail.com>
Date: Wed, 8 Apr 2026 23:36:07 +0700
Subject: [PATCH] fix(app): improve pair device screen with read-only input for
 link

Replace truncating text with a read-only TextInput + copy button pattern
so the pairing URL doesn't get cut off. Increase QR code size from
200x200 to 320x320.
---
 .../components/pair-device-section.tsx        | 187 ++++++++++++++++++
 1 file changed, 187 insertions(+)
 create mode 100644 packages/app/src/desktop/components/pair-device-section.tsx

diff --git a/packages/app/src/desktop/components/pair-device-section.tsx b/packages/app/src/desktop/components/pair-device-section.tsx
new file mode 100644
index 000000000..ee63a78c6
--- /dev/null
+++ b/packages/app/src/desktop/components/pair-device-section.tsx
@@ -0,0 +1,187 @@
+import { useCallback } from "react";
+import { ActivityIndicator, Image, Text, TextInput, View } from "react-native";
+import * as Clipboard from "expo-clipboard";
+import * as QRCode from "qrcode";
+import { useQuery } from "@tanstack/react-query";
+import { StyleSheet, useUnistyles } from "react-native-unistyles";
+import { RotateCw, Copy, Check } from "lucide-react-native";
+import { settingsStyles } from "@/styles/settings";
+import { Button } from "@/components/ui/button";
+import { getDesktopDaemonPairing, shouldUseDesktopDaemon } from "@/desktop/daemon/desktop-daemon";
+import { useState } from "react";
+
+export function PairDeviceSection() {
+  const { theme } = useUnistyles();
+  const showSection = shouldUseDesktopDaemon();
+  const [copied, setCopied] = useState(false);
+
+  const pairingQuery = useQuery({
+    queryKey: ["desktop-daemon-pairing"],
+    queryFn: getDesktopDaemonPairing,
+    enabled: showSection,
+    staleTime: 5 * 60 * 1000,
+    retry: 1,
+  });
+
+  const qrQuery = useQuery({
+    queryKey: ["desktop-daemon-pairing-qr", pairingQuery.data?.url],
+    queryFn: () =>
+      QRCode.toDataURL(pairingQuery.data!.url!, {
+        errorCorrectionLevel: "M",
+        margin: 1,
+        width: 480,
+      }),
+    enabled: !!pairingQuery.data?.url,
+    staleTime: Infinity,
+  });
+
+  const handleCopyLink = useCallback(async () => {
+    if (!pairingQuery.data?.url) return;
+    await Clipboard.setStringAsync(pairingQuery.data.url);
+    setCopied(true);
+    setTimeout(() => setCopied(false), 2000);
+  }, [pairingQuery.data?.url]);
+
+  if (!showSection) return null;
+
+  return (
+    <View style={settingsStyles.section}>
+      <Text style={settingsStyles.sectionTitle}>Pair device</Text>
+      <View style={settingsStyles.card}>
+        {pairingQuery.isPending ? (
+          <View style={styles.centered}>
+            <ActivityIndicator size="small" />
+            <Text style={styles.hint}>Loading pairing offer…</Text>
+          </View>
+        ) : pairingQuery.isError ? (
+          <View style={styles.centered}>
+            <Text style={styles.hint}>
+              {pairingQuery.error instanceof Error
+                ? pairingQuery.error.message
+                : "Failed to load pairing offer."}
+            </Text>
+            <Button
+              variant="outline"
+              size="sm"
+              leftIcon={<RotateCw size={theme.iconSize.sm} color={theme.colors.foreground} />}
+              onPress={() => void pairingQuery.refetch()}
+            >
+              Retry
+            </Button>
+          </View>
+        ) : !pairingQuery.data?.url ? (
+          <View style={styles.centered}>
+            <Text style={styles.hint}>
+              {pairingQuery.data?.relayEnabled === false
+                ? "Relay is not enabled. Enable relay to pair a device."
+                : "Pairing offer unavailable."}
+            </Text>
+            <Button
+              variant="outline"
+              size="sm"
+              leftIcon={<RotateCw size={theme.iconSize.sm} color={theme.colors.foreground} />}
+              onPress={() => void pairingQuery.refetch()}
+            >
+              Retry
+            </Button>
+          </View>
+        ) : (
+          <View style={styles.content}>
+            <Text style={styles.hint}>
+              Scan this QR code with Paseo on your phone, or copy the link below.
+            </Text>
+            <View style={styles.qrContainer}>
+              {qrQuery.data ? (
+                <Image source={{ uri: qrQuery.data }} style={styles.qrImage} resizeMode="contain" />
+              ) : qrQuery.isError ? (
+                <Text style={styles.hint}>QR code unavailable.</Text>
+              ) : (
+                <ActivityIndicator size="small" />
+              )}
+            </View>
+            <View style={styles.linkRow}>
+              <View style={styles.inputWrapper}>
+                <TextInput
+                  style={styles.linkInput}
+                  value={pairingQuery.data.url}
+                  readOnly
+                  selectTextOnFocus
+                  selectionColor={theme.colors.accent}
+                />
+              </View>
+              <Button
+                variant="outline"
+                size="sm"
+                leftIcon={
+                  copied ? (
+                    <Check size={theme.iconSize.sm} color={theme.colors.accent} />
+                  ) : (
+                    <Copy size={theme.iconSize.sm} color={theme.colors.foreground} />
+                  )
+                }
+                onPress={() => void handleCopyLink()}
+              >
+                {copied ? "Copied" : "Copy"}
+              </Button>
+            </View>
+          </View>
+        )}
+      </View>
+    </View>
+  );
+}
+
+const styles = StyleSheet.create((theme) => ({
+  centered: {
+    alignItems: "center",
+    justifyContent: "center",
+    gap: theme.spacing[3],
+    paddingVertical: theme.spacing[6],
+    paddingHorizontal: theme.spacing[4],
+  },
+  content: {
+    gap: theme.spacing[3],
+    padding: theme.spacing[4],
+  },
+  hint: {
+    color: theme.colors.foregroundMuted,
+    fontSize: theme.fontSize.xs,
+    textAlign: "center",
+  },
+  qrContainer: {
+    alignItems: "center",
+    justifyContent: "center",
+    alignSelf: "center",
+    width: 320,
+    height: 320,
+    borderRadius: theme.borderRadius.lg,
+    borderWidth: 1,
+    borderColor: theme.colors.border,
+    backgroundColor: theme.colors.surface0,
+    padding: theme.spacing[2],
+  },
+  qrImage: {
+    width: "100%",
+    height: "100%",
+  },
+  linkRow: {
+    flexDirection: "row",
+    alignItems: "center",
+    gap: theme.spacing[2],
+  },
+  inputWrapper: {
+    flex: 1,
+    borderRadius: theme.borderRadius.md,
+    borderWidth: 1,
+    borderColor: theme.colors.border,
+    backgroundColor: theme.colors.surface0,
+    overflow: "hidden",
+  },
+  linkInput: {
+    color: theme.colors.foregroundMuted,
+    fontSize: theme.fontSize.xs,
+    paddingVertical: theme.spacing[2],
+    paddingHorizontal: theme.spacing[3],
+    outlineStyle: "none",
+  } as any,
+}));