import React from "react";
import { StyleSheet, View, Image } from "react-native";
import { useUiStore } from "~/lib/stores";

const GlobalLoadingOverlay: React.FC = () => {
  const isLoading = useUiStore((state) => state.isLoading);
  const isOpaque = useUiStore((state) => state.isOpaque);

  if (!isLoading) {
    return null;
  }

  // Opaque mode: full screen white background with primary loader
  if (isOpaque) {
    return (
      <View pointerEvents="auto" style={styles.overlay}>
        <View style={styles.opaqueBackdrop} />
        <Image
          source={require("../../assets/gif/AmbaPayLogo.gif")}
          style={{ width: 280, height: 280 }}
          resizeMode="contain"
        />
      </View>
    );
  }

  // Default mode: semi-transparent overlay with loader
  return (
    <View pointerEvents="auto" style={styles.overlay}>
      <View style={styles.backdrop} />
      <View style={styles.loaderContainer}>
        <Image
          source={require("../../assets/gif/AmbaPayLogo.gif")}
          style={{ width: 280, height: 280 }}
          resizeMode="contain"
        />
      </View>
    </View>
  );
};

const styles = StyleSheet.create({
  overlay: {
    ...StyleSheet.absoluteFillObject,
    alignItems: "center",
    justifyContent: "center",
    zIndex: 1000,
  },
  backdrop: {
    ...StyleSheet.absoluteFillObject,
    backgroundColor: "rgba(0, 0, 0, 0.25)",
  },
  opaqueBackdrop: {
    ...StyleSheet.absoluteFillObject,
    backgroundColor: "#ffffff",
  },
  loaderContainer: {
    paddingVertical: 24,
    paddingHorizontal: 32,
    borderRadius: 16,
  },
});

export default GlobalLoadingOverlay;