import React, { useState } from "react";
import { View, Text, TextInput, TouchableOpacity, StyleSheet } from "react-native";
import { useAuth } from "@/context/auth-context";
import { router } from "expo-router";

export default function AuthScreen() {
  const [isLogin, setIsLogin] = useState(true);

  return isLogin ? (
    <LoginScreen onSwitch={() => setIsLogin(false)} />
  ) : (
    <RegisterScreen onSwitch={() => setIsLogin(true)} />
  );
}

function LoginScreen({ onSwitch }) {
  const [email, setEmail] = useState("");
  const [password, setPassword] = useState("");
  const { login } = useAuth();

  const handleLogin = async () => {
    const loginResult = await login(email, password);
    if (loginResult) {
        console.log("Login successful");
        router.replace("/(tabs)");
    }
  };

  return (
    <View style={styles.container}>
      <Text style={styles.title}>Welcome Back</Text>

      <TextInput
        style={styles.input}
        placeholder="Email"
        value={email}
        onChangeText={setEmail}
        keyboardType="email-address"
        autoCapitalize="none"
      />

      <TextInput
        style={styles.input}
        placeholder="Password"
        value={password}
        onChangeText={setPassword}
        secureTextEntry
      />

      <TouchableOpacity style={styles.button} onPress={handleLogin}>
        <Text style={styles.buttonText}>Login</Text>
      </TouchableOpacity>

      <TouchableOpacity onPress={onSwitch}>
        <Text style={styles.link}>Don&apos;t have an account? Register</Text>
      </TouchableOpacity>
    </View>
  );
}

function RegisterScreen({ onSwitch }) {
  const [name, setName] = useState("");
  const [email, setEmail] = useState("");
  const [password, setPassword] = useState("");

  const handleRegister = () => {
    console.log("Register ->", { name, email, password });
  };

  return (
    <View style={styles.container}>
      <Text style={styles.title}>Create Account</Text>

      <TextInput
        style={styles.input}
        placeholder="Full Name"
        value={name}
        onChangeText={setName}
      />

      <TextInput
        style={styles.input}
        placeholder="Email"
        value={email}
        onChangeText={setEmail}
        keyboardType="email-address"
        autoCapitalize="none"
      />

      <TextInput
        style={styles.input}
        placeholder="Password"
        value={password}
        onChangeText={setPassword}
        secureTextEntry
      />

      <TouchableOpacity style={styles.button} onPress={handleRegister}>
        <Text style={styles.buttonText}>Register</Text>
      </TouchableOpacity>

      <TouchableOpacity onPress={onSwitch}>
        <Text style={styles.link}>Already have an account? Login</Text>
      </TouchableOpacity>
    </View>
  );
}

const styles = StyleSheet.create({
  container: {
    flex: 1,
    justifyContent: "center",
    padding: 20,
    backgroundColor: "#f5f5f5",
  },
  title: {
    fontSize: 28,
    fontWeight: "bold",
    marginBottom: 30,
    textAlign: "center",
  },
  input: {
    height: 50,
    borderColor: "#ccc",
    borderWidth: 1,
    borderRadius: 10,
    paddingHorizontal: 15,
    marginBottom: 15,
    backgroundColor: "#fff",
  },
  button: {
    height: 50,
    backgroundColor: "#4CAF50",
    borderRadius: 10,
    justifyContent: "center",
    alignItems: "center",
    marginTop: 10,
  },
  buttonText: {
    color: "#fff",
    fontSize: 16,
    fontWeight: "bold",
  },
  link: {
    marginTop: 15,
    textAlign: "center",
    color: "#007BFF",
  },
});