import { Ionicons } from "@expo/vector-icons";
import { Tabs } from "expo-router";
import { View } from "react-native";
import { useSafeAreaInsets } from "react-native-safe-area-context";
import { useTranslation } from "react-i18next";
import { Text } from "@/components/ui/Text";
import { colors, fonts, radii, shadows } from "@/lib/theme";
import { useCartStore } from "@/lib/stores/cartStore";

function TabIcon({
  name,
  focused,
  badge,
}: {
  name: keyof typeof Ionicons.glyphMap;
  focused: boolean;
  badge?: number;
}) {
  return (
    <View style={{ width: 46, height: 40, alignItems: "center", justifyContent: "center" }}>
      <View
        style={{
          width: 40,
          height: 32,
          borderRadius: radii.pill,
          alignItems: "center",
          justifyContent: "center",
          backgroundColor: focused ? colors.brandSoft : "transparent",
        }}
      >
        <Ionicons
          name={name}
          size={20}
          color={focused ? colors.brandText : colors.subtle}
        />
      </View>
      {badge ? (
        <View
          style={{
            position: "absolute",
            top: -2,
            right: 2,
            minWidth: 17,
            height: 17,
            paddingHorizontal: 4,
            borderRadius: 9,
            backgroundColor: colors.danger,
            alignItems: "center",
            justifyContent: "center",
            borderWidth: 2,
            borderColor: colors.surface,
          }}
        >
          <Text variant="micro" color={colors.surface} style={{ fontSize: 9, lineHeight: 12 }}>
            {badge > 9 ? "9+" : badge}
          </Text>
        </View>
      ) : null}
    </View>
  );
}

export function FloatingTabBar() {
  const insets = useSafeAreaInsets();
  const { t } = useTranslation();
  const cartCount = useCartStore((s) => s.totalItems());

  return (
    <Tabs
      screenOptions={{
        headerShown: false,
        tabBarActiveTintColor: colors.brandText,
        tabBarInactiveTintColor: colors.subtle,
        tabBarLabelStyle: {
          fontFamily: fonts.semibold,
          fontSize: 11,
          marginTop: 2,
        },
        tabBarItemStyle: { paddingTop: 8 },
        tabBarStyle: [
          {
            position: "absolute",
            left: 16,
            right: 16,
            bottom: Math.max(insets.bottom, 12),
            height: 68,
            borderRadius: radii.xl,
            backgroundColor: colors.surface,
            borderTopWidth: 0,
            borderWidth: 1,
            borderColor: colors.line,
            paddingBottom: 8,
          },
          shadows.md,
        ],
      }}
    >
      <Tabs.Screen
        name="index"
        options={{
          title: t("common.home"),
          tabBarIcon: ({ focused }) => (
            <TabIcon name={focused ? "home" : "home-outline"} focused={focused} />
          ),
        }}
      />
      <Tabs.Screen
        name="favorites"
        options={{
          title: t("common.favorites"),
          tabBarIcon: ({ focused }) => (
            <TabIcon name={focused ? "heart" : "heart-outline"} focused={focused} />
          ),
        }}
      />
      <Tabs.Screen
        name="cart"
        options={{
          title: t("common.cart"),
          tabBarIcon: ({ focused }) => (
            <TabIcon
              name={focused ? "bag-handle" : "bag-handle-outline"}
              focused={focused}
              badge={cartCount}
            />
          ),
        }}
      />
      <Tabs.Screen
        name="prescriptions"
        options={{
          title: t("common.prescriptions"),
          tabBarIcon: ({ focused }) => (
            <TabIcon
              name={focused ? "medkit" : "medkit-outline"}
              focused={focused}
            />
          ),
        }}
      />
    </Tabs>
  );
}