const DropdownMenu = !Platform.isTV ? require("zeego/dropdown-menu") : null;

import {
  type PropsWithChildren,
  type ReactNode,
  useEffect,
  useState,
} from "react";
import { Platform, TouchableOpacity, View, type ViewProps } from "react-native";
import { Text } from "@/components/common/Text";
import DisabledSetting from "@/components/settings/DisabledSetting";

interface Props<T> {
  data: T[];
  disabled?: boolean;
  placeholderText?: string;
  keyExtractor: (item: T) => string;
  titleExtractor: (item: T) => string | undefined;
  title: string | ReactNode;
  label: string;
  onSelected: (...item: T[]) => void;
  multiple?: boolean;
}

const Dropdown = <T,>({
  data,
  disabled,
  placeholderText,
  keyExtractor,
  titleExtractor,
  title,
  label,
  onSelected,
  multiple = false,
  ...props
}: PropsWithChildren<Props<T> & ViewProps>) => {
  const isTv = Platform.isTV;

  const [selected, setSelected] = useState<T[]>();

  useEffect(() => {
    if (selected !== undefined) {
      onSelected(...selected);
    }
  }, [selected, onSelected]);

  if (isTv) return null;

  return (
    <DisabledSetting disabled={disabled === true} showText={false} {...props}>
      <DropdownMenu.Root>
        <DropdownMenu.Trigger>
          {typeof title === "string" ? (
            <View className='flex flex-col'>
              <Text className='opacity-50 mb-1 text-xs'>{title}</Text>
              <TouchableOpacity className='bg-neutral-900 h-10 rounded-xl border-neutral-800 border px-3 py-2 flex flex-row items-center justify-between'>
                <Text style={{}} className='' numberOfLines={1}>
                  {selected?.length !== undefined
                    ? selected.map(titleExtractor).join(",")
                    : placeholderText}
                </Text>
              </TouchableOpacity>
            </View>
          ) : (
            title
          )}
        </DropdownMenu.Trigger>
        <DropdownMenu.Content
          loop={false}
          side='bottom'
          align='center'
          alignOffset={0}
          avoidCollisions={true}
          collisionPadding={0}
          sideOffset={0}
        >
          <DropdownMenu.Label>{label}</DropdownMenu.Label>
          {data.map((item, _idx) =>
            multiple ? (
              <DropdownMenu.CheckboxItem
                value={
                  selected?.some((s) => keyExtractor(s) === keyExtractor(item))
                    ? "on"
                    : "off"
                }
                key={keyExtractor(item)}
                onValueChange={(
                  next: "on" | "off",
                  _previous: "on" | "off",
                ) => {
                  setSelected((p) => {
                    const prev = p || [];
                    if (next === "on") {
                      return [...prev, item];
                    }
                    return [
                      ...prev.filter(
                        (p) => keyExtractor(p) !== keyExtractor(item),
                      ),
                    ];
                  });
                }}
              >
                <DropdownMenu.ItemTitle>
                  {titleExtractor(item)}
                </DropdownMenu.ItemTitle>
              </DropdownMenu.CheckboxItem>
            ) : (
              <DropdownMenu.Item
                key={keyExtractor(item)}
                onSelect={() => setSelected([item])}
              >
                <DropdownMenu.ItemTitle>
                  {titleExtractor(item)}
                </DropdownMenu.ItemTitle>
              </DropdownMenu.Item>
            ),
          )}
        </DropdownMenu.Content>
      </DropdownMenu.Root>
    </DisabledSetting>
  );
};

export default Dropdown;