import React from 'react';
import { View, Text, StyleSheet, Pressable } from 'react-native';
import Svg, { Path } from 'react-native-svg';
import Animated, { FadeIn, FadeOut, Layout } from 'react-native-reanimated';
import { useTheme } from '../../../theme';
import { haptics } from '../../../services/haptics/haptics';
import type { LoginRole } from '../../../types/app';

interface LoginRoleTabsProps {
  activeRole: LoginRole;
  onRoleChange: (role: LoginRole) => void;
}

const ROLES: LoginRole[] = ['User', 'Employee', 'Agent'];

const ActiveTabBackground = () => (
  <Animated.View 
    entering={FadeIn.duration(300)} 
    exiting={FadeOut.duration(200)}
    layout={Layout.springify().damping(15)}
    style={StyleSheet.absoluteFill}
  >
    <Svg width="100%" height="100%" viewBox="0 0 110 36" preserveAspectRatio="none">
      <Path d="M 0,36 L 0,12 Q 0,0 12,0 L 80,0 Q 88,0 92,6 L 110,36 Z" fill="#143e6c" />
    </Svg>
  </Animated.View>
);

export const LoginRoleTabs: React.FC<LoginRoleTabsProps> = ({ activeRole, onRoleChange }) => {
  const theme = useTheme();

  return (
    <View style={styles.container}>
      {ROLES.map((role, index) => {
        const isActive = activeRole === role;
        
        return (
          <Pressable
            key={role}
            onPress={() => {
              if (!isActive) {
                haptics.selection();
                onRoleChange(role);
              }
            }}
            style={({ pressed }) => [
              styles.tab,
              index > 0 && { marginLeft: isActive ? -10 : 0 },
              isActive && { zIndex: 10 },
              pressed && !isActive && { opacity: 0.6 },
              pressed && isActive && { transform: [{ scale: 0.98 }] }
            ]}
          >
            {isActive && <ActiveTabBackground />}
            
            <Animated.Text
              layout={Layout.springify().damping(15)}
              style={[
                styles.tabText,
                isActive ? styles.activeText : [styles.inactiveText, { color: theme.colors.textSecondary }],
              ]}
            >
              {role}
            </Animated.Text>
          </Pressable>
        );
      })}
    </View>
  );
};

const styles = StyleSheet.create({
  container: {
    flexDirection: 'row',
    alignItems: 'flex-end',
    marginBottom: -1,
    zIndex: 10,
    marginLeft: 0,
  },
  tab: {
    justifyContent: 'center',
    alignItems: 'center',
    height: 38,
    width: 110,
  },
  tabText: {
    fontSize: 14,
    fontWeight: '700',
    zIndex: 2,
    transform: [{ translateX: -4 }],
  },
  activeText: {
    color: '#FFFFFF',
  },
  inactiveText: {
    fontWeight: '600',
  },
});