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path: root/packages/mobile/app/signin.tsx
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import { useRouter } from "expo-router";
import { useEffect, useState } from "react";
import { View, Text } from "react-native";

import Logo from "@/components/Logo";
import { Button } from "@/components/ui/Button";
import { Input } from "@/components/ui/Input";
import useAppSettings from "@/lib/settings";
import { api } from "@/lib/trpc";

export default function Signin() {
  const router = useRouter();

  const { settings, setSettings } = useAppSettings();

  const [error, setError] = useState<string | undefined>();

  const { mutate: login, isPending } = api.apiKeys.exchange.useMutation({
    onSuccess: (resp) => {
      setSettings({ ...settings, apiKey: resp.key });
      router.replace("dashboard");
    },
    onError: (e) => {
      if (e.data?.code === "UNAUTHORIZED") {
        setError("Wrong username or password");
      } else {
        setError(`${e.message}`);
      }
    },
  });

  const [formData, setFormData] = useState<{
    email: string;
    password: string;
  }>({
    email: "",
    password: "",
  });

  useEffect(() => {
    if (settings.apiKey) {
      router.navigate("dashboard");
    }
  }, [settings]);

  const onSignin = () => {
    const randStr = (Math.random() + 1).toString(36).substring(5);
    login({ ...formData, keyName: `Mobile App: (${randStr})` });
  };

  return (
    <View className="flex h-full flex-col justify-center gap-2 px-4">
      <View className="items-center">
        <Logo />
      </View>
      {error && (
        <Text className="w-full text-center text-red-500">{error}</Text>
      )}
      <View className="gap-2">
        <Text className="font-bold">Server Address</Text>
        <Input
          className="w-full"
          placeholder="Server Address"
          value={settings.address}
          autoCapitalize="none"
          keyboardType="url"
          onEndEditing={(e) =>
            setSettings({ ...settings, address: e.nativeEvent.text })
          }
        />
      </View>
      <View className="gap-2">
        <Text className="font-bold">Email</Text>
        <Input
          className="w-full"
          placeholder="Email"
          keyboardType="email-address"
          autoCapitalize="none"
          value={formData.email}
          onChangeText={(e) => setFormData((s) => ({ ...s, email: e }))}
        />
      </View>
      <View className="gap-2">
        <Text className="font-bold">Password</Text>
        <Input
          className="w-full"
          placeholder="Password"
          secureTextEntry
          value={formData.password}
          onChangeText={(e) => setFormData((s) => ({ ...s, password: e }))}
        />
      </View>
      <Button
        className="w-full"
        label="Sign In"
        onPress={onSignin}
        disabled={isPending}
      />
    </View>
  );
}