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 { ConfigProvider } from "antd";
import classNames from "clsx";
import React, { memo, useContext, useEffect, useRef, useState } from "react";
import { DEFAULT_TEXT_SWAP_DURATION_MS } from "./constants";
import { useTextSwapStyle } from "./style";
function prefersReducedMotion() {
    if (typeof window === 'undefined' || !window.matchMedia) {
        return false;
    }
    try {
        return window.matchMedia('(prefers-reduced-motion: reduce)').matches;
    } catch (unused) {
        return false;
    }
}
/**
 * Text content cross-fade with vertical motion (exit up, enter from below), blur, and opacity.
 * Respects `prefers-reduced-motion: reduce`.
 */ var TextSwapComponent = function TextSwapComponent(props) {
    var swapKey = props.swapKey, children = props.children, className = props.className, style = props.style, durationMs = props.durationMs, dataTestId = props['data-testid'], rest = _object_without_properties(props, [
        "swapKey",
        "children",
        "className",
        "style",
        "durationMs",
        'data-testid'
    ]);
    var getPrefixCls = useContext(ConfigProvider.ConfigContext).getPrefixCls;
    var prefixCls = getPrefixCls('text-swap');
    var _useTextSwapStyle = useTextSwapStyle(prefixCls), wrapSSR = _useTextSwapStyle.wrapSSR, hashId = _useTextSwapStyle.hashId;
    var resolvedDuration = durationMs !== null && durationMs !== void 0 ? durationMs : DEFAULT_TEXT_SWAP_DURATION_MS;
    var _useState = _sliced_to_array(useState(swapKey), 2), displayKey = _useState[0], setDisplayKey = _useState[1];
    var _useState1 = _sliced_to_array(useState(children), 2), displayContent = _useState1[0], setDisplayContent = _useState1[1];
    var _useState2 = _sliced_to_array(useState('idle'), 2), phase = _useState2[0], setPhase = _useState2[1];
    var latestChildrenRef = useRef(children);
    latestChildrenRef.current = children;
    // While not transitioning (swapKey matches rendered key), always mirror latest children.
    useEffect(function() {
        if (swapKey !== displayKey) {
            return;
        }
        setDisplayContent(latestChildrenRef.current);
    }, [
        swapKey,
        displayKey,
        children
    ]);
    useEffect(function() {
        if (swapKey === displayKey) {
            return;
        }
        if (prefersReducedMotion()) {
            setDisplayKey(swapKey);
            setDisplayContent(latestChildrenRef.current);
            setPhase('idle');
            return;
        }
        setPhase('exit');
        var timer = window.setTimeout(function() {
            setDisplayKey(swapKey);
            setDisplayContent(latestChildrenRef.current);
            setPhase('enterStart');
            requestAnimationFrame(function() {
                requestAnimationFrame(function() {
                    setPhase('idle');
                });
            });
        }, resolvedDuration);
        return function() {
            window.clearTimeout(timer);
        };
    }, [
        swapKey,
        displayKey,
        resolvedDuration
    ]);
    var mergedStyle = _object_spread({}, durationMs !== undefined ? {
        '--text-swap-dur': "".concat(durationMs, "ms")
    } : {}, style);
    var _obj;
    return wrapSSR(/*#__PURE__*/ React.createElement("span", _object_spread_props(_object_spread({}, rest), {
        className: classNames(prefixCls, hashId, className, (_obj = {}, _define_property(_obj, "".concat(prefixCls, "-exit"), phase === 'exit'), _define_property(_obj, "".concat(prefixCls, "-enter-start"), phase === 'enterStart'), _obj)),
        style: mergedStyle,
        "data-testid": dataTestId !== null && dataTestId !== void 0 ? dataTestId : 'text-swap'
    }), displayContent));
};
export var TextSwap = /*#__PURE__*/ memo(TextSwapComponent);
TextSwap.displayName = 'TextSwap';
