function _array_like_to_array(arr, len) {
    if (len == null || len > arr.length) len = arr.length;
    for(var i = 0, arr2 = new Array(len); i < len; i++)arr2[i] = arr[i];
    return arr2;
}
function _array_with_holes(arr) {
    if (Array.isArray(arr)) return arr;
}
function _define_property(obj, key, value) {
    if (key in obj) {
        Object.defineProperty(obj, key, {
            value: value,
            enumerable: true,
            configurable: true,
            writable: true
        });
    } else {
        obj[key] = value;
    }
    return obj;
}
function _iterable_to_array_limit(arr, i) {
    var _i = arr == null ? null : typeof Symbol !== "undefined" && arr[Symbol.iterator] || arr["@@iterator"];
    if (_i == null) return;
    var _arr = [];
    var _n = true;
    var _d = false;
    var _s, _e;
    try {
        for(_i = _i.call(arr); !(_n = (_s = _i.next()).done); _n = true){
            _arr.push(_s.value);
            if (i && _arr.length === i) break;
        }
    } catch (err) {
        _d = true;
        _e = err;
    } finally{
        try {
            if (!_n && _i["return"] != null) _i["return"]();
        } finally{
            if (_d) throw _e;
        }
    }
    return _arr;
}
function _non_iterable_rest() {
    throw new TypeError("Invalid attempt to destructure non-iterable instance.\\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method.");
}
function _object_spread(target) {
    for(var i = 1; i < arguments.length; i++){
        var source = arguments[i] != null ? arguments[i] : {};
        var ownKeys = Object.keys(source);
        if (typeof Object.getOwnPropertySymbols === "function") {
            ownKeys = ownKeys.concat(Object.getOwnPropertySymbols(source).filter(function(sym) {
                return Object.getOwnPropertyDescriptor(source, sym).enumerable;
            }));
        }
        ownKeys.forEach(function(key) {
            _define_property(target, key, source[key]);
        });
    }
    return target;
}
function ownKeys(object, enumerableOnly) {
    var keys = Object.keys(object);
    if (Object.getOwnPropertySymbols) {
        var symbols = Object.getOwnPropertySymbols(object);
        if (enumerableOnly) {
            symbols = symbols.filter(function(sym) {
                return Object.getOwnPropertyDescriptor(object, sym).enumerable;
            });
        }
        keys.push.apply(keys, symbols);
    }
    return keys;
}
function _object_spread_props(target, source) {
    source = source != null ? source : {};
    if (Object.getOwnPropertyDescriptors) {
        Object.defineProperties(target, Object.getOwnPropertyDescriptors(source));
    } else {
        ownKeys(Object(source)).forEach(function(key) {
            Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key));
        });
    }
    return target;
}
function _object_without_properties(source, excluded) {
    if (source == null) return {};
    var target = {}, sourceKeys, key, i;
    if (typeof Reflect !== "undefined" && Reflect.ownKeys) {
        sourceKeys = Reflect.ownKeys(source);
        for(i = 0; i < sourceKeys.length; i++){
            key = sourceKeys[i];
            if (excluded.indexOf(key) >= 0) continue;
            if (!Object.prototype.propertyIsEnumerable.call(source, key)) continue;
            target[key] = source[key];
        }
        return target;
    }
    target = _object_without_properties_loose(source, excluded);
    if (Object.getOwnPropertySymbols) {
        sourceKeys = Object.getOwnPropertySymbols(source);
        for(i = 0; i < sourceKeys.length; i++){
            key = sourceKeys[i];
            if (excluded.indexOf(key) >= 0) continue;
            if (!Object.prototype.propertyIsEnumerable.call(source, key)) continue;
            target[key] = source[key];
        }
    }
    return target;
}
function _object_without_properties_loose(source, excluded) {
    if (source == null) return {};
    var target = {}, sourceKeys = Object.getOwnPropertyNames(source), key, i;
    for(i = 0; i < sourceKeys.length; i++){
        key = sourceKeys[i];
        if (excluded.indexOf(key) >= 0) continue;
        if (!Object.prototype.propertyIsEnumerable.call(source, key)) continue;
        target[key] = source[key];
    }
    return target;
}
function _sliced_to_array(arr, i) {
    return _array_with_holes(arr) || _iterable_to_array_limit(arr, i) || _unsupported_iterable_to_array(arr, i) || _non_iterable_rest();
}
function _unsupported_iterable_to_array(o, minLen) {
    if (!o) return;
    if (typeof o === "string") return _array_like_to_array(o, minLen);
    var n = Object.prototype.toString.call(o).slice(8, -1);
    if (n === "Object" && o.constructor) n = o.constructor.name;
    if (n === "Map" || n === "Set") return Array.from(n);
    if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _array_like_to_array(o, minLen);
}
import { useEffect, useLayoutEffect, useRef, useState } from "react";
export var useIntersectionOnce = function useIntersectionOnce(targetRef) {
    var options = arguments.length > 1 && arguments[1] !== void 0 ? arguments[1] : {};
    var root = options.root, restOptions = _object_without_properties(options, [
        "root"
    ]);
    var _useState = _sliced_to_array(useState(false), 2), isIntersecting = _useState[0], setIntersecting = _useState[1];
    var observerRef = useRef(null);
    // 初始检查：在 DOM 更新后立即检查元素是否已经在视口内
    useLayoutEffect(function() {
        if (isIntersecting) return;
        var element = targetRef.current;
        if (!element) return;
        if (typeof window === 'undefined') {
            setIntersecting(true);
            return;
        }
        // 检查元素是否已经在视口内
        var rect = element.getBoundingClientRect();
        var resolvedRoot = root && 'current' in root ? root.current : root;
        var rootElement = resolvedRoot || (typeof document !== 'undefined' ? document.documentElement : null);
        var shouldSetIntersecting = false;
        if (!rootElement) {
            // 如果没有 root，使用 viewport 检查
            shouldSetIntersecting = rect.top < window.innerHeight && rect.bottom > 0 && rect.left < window.innerWidth && rect.right > 0;
        } else {
            // 如果有 root，检查是否在 root 内
            var rootRect = rootElement.getBoundingClientRect();
            shouldSetIntersecting = rect.top < rootRect.bottom && rect.bottom > rootRect.top && rect.left < rootRect.right && rect.right > rootRect.left;
        }
        if (shouldSetIntersecting) {
            setIntersecting(true);
        }
    }, [
        targetRef,
        root,
        isIntersecting
    ]);
    // 设置 IntersectionObserver 监听元素进入视口
    useEffect(function() {
        if (isIntersecting) return;
        var element = targetRef.current;
        if (!element) return;
        if (typeof IntersectionObserver === 'undefined') {
            setIntersecting(true);
            return;
        }
        var resolvedRoot = root && 'current' in root ? root.current : root;
        observerRef.current = new IntersectionObserver(function(entries) {
            entries.forEach(function(entry) {
                if (entry.isIntersecting || entry.intersectionRatio > 0) {
                    var _observerRef_current;
                    setIntersecting(true);
                    (_observerRef_current = observerRef.current) === null || _observerRef_current === void 0 ? void 0 : _observerRef_current.disconnect();
                }
            });
        }, _object_spread_props(_object_spread({}, restOptions), {
            root: resolvedRoot !== null && resolvedRoot !== void 0 ? resolvedRoot : null
        }));
        observerRef.current.observe(element);
        return function() {
            var _observerRef_current;
            (_observerRef_current = observerRef.current) === null || _observerRef_current === void 0 ? void 0 : _observerRef_current.disconnect();
            observerRef.current = null;
        };
    }, [
        targetRef,
        restOptions.rootMargin,
        restOptions.threshold,
        root,
        isIntersecting
    ]);
    return isIntersecting;
};
