clerkauth

implemented, sync with db to be added

apps/mobile/src/app/(auth)/sign-in.tsx

@@ -0,0 +1,259 @@
+import React from "react";
+import { useSignIn, useAuth } from "@clerk/clerk-expo";
+import { useRouter } from "expo-router";
+import {
+  View,
+  Text,
+  TextInput,
+  TouchableOpacity,
+  StyleSheet,
+  ActivityIndicator,
+  KeyboardAvoidingView,
+  Platform,
+  ScrollView,
+} from "react-native";
+
+export default function SignInScreen() {
+  const { signIn, setActive, isLoaded } = useSignIn();
+  const { isSignedIn } = useAuth();
+  const router = useRouter();
+
+  const [emailAddress, setEmailAddress] = React.useState("");
+  const [password, setPassword] = React.useState("");
+  const [loading, setLoading] = React.useState(false);
+  const [error, setError] = React.useState("");
+
+  // Redirect if already signed in
+  React.useEffect(() => {
+    if (isSignedIn) {
+      router.replace("/(tabs)");
+    }
+  }, [isSignedIn]);
+
+  const onSignInPress = async () => {
+    if (!isLoaded) return;
+
+    setLoading(true);
+    setError("");
+
+    try {
+      const signInAttempt = await signIn.create({
+        identifier: emailAddress,
+        password,
+      });
+
+      if (signInAttempt.status === "complete") {
+        await setActive({ session: signInAttempt.createdSessionId });
+        router.replace("/(tabs)");
+      } else {
+        console.error(
+          "Sign-in incomplete:",
+          JSON.stringify(signInAttempt, null, 2),
+        );
+        setError("Sign-in incomplete. Please try again.");
+      }
+    } catch (err: any) {
+      console.error("Sign-in error:", JSON.stringify(err, null, 2));
+
+      // Handle specific error codes
+      if (err.errors?.[0]?.code === "session_exists") {
+        // User is already signed in, just redirect
+        router.replace("/(tabs)");
+        return;
+      }
+
+      setError(
+        err.errors?.[0]?.message ||
+          "Failed to sign in. Please check your credentials.",
+      );
+    } finally {
+      setLoading(false);
+    }
+  };
+
+  // Don't render the form if already signed in
+  if (isSignedIn) {
+    return (
+      <View style={[styles.container, styles.centerContent]}>
+        <ActivityIndicator size="large" color="#2563eb" />
+        <Text style={styles.loadingText}>Redirecting...</Text>
+      </View>
+    );
+  }
+
+  return (
+    <KeyboardAvoidingView
+      behavior={Platform.OS === "ios" ? "padding" : "height"}
+      style={styles.container}
+    >
+      <ScrollView
+        contentContainerStyle={styles.scrollContent}
+        keyboardShouldPersistTaps="handled"
+      >
+        <View style={styles.content}>
+          <Text style={styles.title}>Welcome Back</Text>
+          <Text style={styles.subtitle}>Sign in to continue to FitAI</Text>
+
+          {error ? (
+            <View style={styles.errorContainer}>
+              <Text style={styles.errorText}>{error}</Text>
+            </View>
+          ) : null}
+
+          <View style={styles.form}>
+            <View style={styles.inputContainer}>
+              <Text style={styles.label}>Email</Text>
+              <TextInput
+                style={styles.input}
+                autoCapitalize="none"
+                value={emailAddress}
+                placeholder="Enter your email"
+                placeholderTextColor="#999"
+                onChangeText={setEmailAddress}
+                keyboardType="email-address"
+                autoComplete="email"
+                editable={!loading}
+              />
+            </View>
+
+            <View style={styles.inputContainer}>
+              <Text style={styles.label}>Password</Text>
+              <TextInput
+                style={styles.input}
+                value={password}
+                placeholder="Enter your password"
+                placeholderTextColor="#999"
+                secureTextEntry={true}
+                onChangeText={setPassword}
+                autoComplete="password"
+                editable={!loading}
+              />
+            </View>
+
+            <TouchableOpacity
+              style={[styles.button, loading && styles.buttonDisabled]}
+              onPress={onSignInPress}
+              disabled={loading || !emailAddress || !password}
+            >
+              {loading ? (
+                <ActivityIndicator color="#fff" />
+              ) : (
+                <Text style={styles.buttonText}>Sign In</Text>
+              )}
+            </TouchableOpacity>
+          </View>
+
+          <View style={styles.footer}>
+            <Text style={styles.footerText}>Don't have an account? </Text>
+            <TouchableOpacity
+              onPress={() => router.push("/(auth)/sign-up")}
+              disabled={loading}
+            >
+              <Text style={styles.linkText}>Sign Up</Text>
+            </TouchableOpacity>
+          </View>
+        </View>
+      </ScrollView>
+    </KeyboardAvoidingView>
+  );
+}
+
+const styles = StyleSheet.create({
+  container: {
+    flex: 1,
+    backgroundColor: "#f5f5f5",
+  },
+  centerContent: {
+    justifyContent: "center",
+    alignItems: "center",
+  },
+  loadingText: {
+    marginTop: 12,
+    fontSize: 16,
+    color: "#666",
+  },
+  scrollContent: {
+    flexGrow: 1,
+    justifyContent: "center",
+  },
+  content: {
+    flex: 1,
+    justifyContent: "center",
+    paddingHorizontal: 24,
+    paddingVertical: 40,
+  },
+  title: {
+    fontSize: 32,
+    fontWeight: "bold",
+    color: "#1a1a1a",
+    marginBottom: 8,
+  },
+  subtitle: {
+    fontSize: 16,
+    color: "#666",
+    marginBottom: 32,
+  },
+  errorContainer: {
+    backgroundColor: "#fee",
+    padding: 12,
+    borderRadius: 8,
+    marginBottom: 16,
+    borderLeftWidth: 4,
+    borderLeftColor: "#f44",
+  },
+  errorText: {
+    color: "#c00",
+    fontSize: 14,
+  },
+  form: {
+    marginBottom: 24,
+  },
+  inputContainer: {
+    marginBottom: 20,
+  },
+  label: {
+    fontSize: 14,
+    fontWeight: "600",
+    color: "#333",
+    marginBottom: 8,
+  },
+  input: {
+    backgroundColor: "#fff",
+    borderWidth: 1,
+    borderColor: "#ddd",
+    borderRadius: 8,
+    paddingHorizontal: 16,
+    paddingVertical: 12,
+    fontSize: 16,
+    color: "#1a1a1a",
+  },
+  button: {
+    backgroundColor: "#2563eb",
+    paddingVertical: 16,
+    borderRadius: 8,
+    alignItems: "center",
+    marginTop: 8,
+  },
+  buttonDisabled: {
+    backgroundColor: "#93c5fd",
+  },
+  buttonText: {
+    color: "#fff",
+    fontSize: 16,
+    fontWeight: "600",
+  },
+  footer: {
+    flexDirection: "row",
+    justifyContent: "center",
+    alignItems: "center",
+  },
+  footerText: {
+    fontSize: 14,
+    color: "#666",
+  },
+  linkText: {
+    fontSize: 14,
+    color: "#2563eb",
+    fontWeight: "600",
+  },
+});