function asyncGeneratorStep(gen, resolve, reject, _next, _throw, key, arg) {
    try {
        var info = gen[key](arg);
        var value = info.value;
    } catch (error) {
        reject(error);
        return;
    }
    if (info.done) {
        resolve(value);
    } else {
        Promise.resolve(value).then(_next, _throw);
    }
}
function _async_to_generator(fn) {
    return function() {
        var self = this, args = arguments;
        return new Promise(function(resolve, reject) {
            var gen = fn.apply(self, args);
            function _next(value) {
                asyncGeneratorStep(gen, resolve, reject, _next, _throw, "next", value);
            }
            function _throw(err) {
                asyncGeneratorStep(gen, resolve, reject, _next, _throw, "throw", err);
            }
            _next(undefined);
        });
    };
}
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 _instanceof(left, right) {
    if (right != null && typeof Symbol !== "undefined" && right[Symbol.hasInstance]) {
        return !!right[Symbol.hasInstance](left);
    } else {
        return left instanceof right;
    }
}
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 _ts_generator(thisArg, body) {
    var f, y, t, _ = {
        label: 0,
        sent: function() {
            if (t[0] & 1) throw t[1];
            return t[1];
        },
        trys: [],
        ops: []
    }, g = Object.create((typeof Iterator === "function" ? Iterator : Object).prototype), d = Object.defineProperty;
    return d(g, "next", {
        value: verb(0)
    }), d(g, "throw", {
        value: verb(1)
    }), d(g, "return", {
        value: verb(2)
    }), typeof Symbol === "function" && d(g, Symbol.iterator, {
        value: function() {
            return this;
        }
    }), g;
    function verb(n) {
        return function(v) {
            return step([
                n,
                v
            ]);
        };
    }
    function step(op) {
        if (f) throw new TypeError("Generator is already executing.");
        while(g && (g = 0, op[0] && (_ = 0)), _)try {
            if (f = 1, y && (t = op[0] & 2 ? y["return"] : op[0] ? y["throw"] || ((t = y["return"]) && t.call(y), 0) : y.next) && !(t = t.call(y, op[1])).done) return t;
            if (y = 0, t) op = [
                op[0] & 2,
                t.value
            ];
            switch(op[0]){
                case 0:
                case 1:
                    t = op;
                    break;
                case 4:
                    _.label++;
                    return {
                        value: op[1],
                        done: false
                    };
                case 5:
                    _.label++;
                    y = op[1];
                    op = [
                        0
                    ];
                    continue;
                case 7:
                    op = _.ops.pop();
                    _.trys.pop();
                    continue;
                default:
                    if (!(t = _.trys, t = t.length > 0 && t[t.length - 1]) && (op[0] === 6 || op[0] === 2)) {
                        _ = 0;
                        continue;
                    }
                    if (op[0] === 3 && (!t || op[1] > t[0] && op[1] < t[3])) {
                        _.label = op[1];
                        break;
                    }
                    if (op[0] === 6 && _.label < t[1]) {
                        _.label = t[1];
                        t = op;
                        break;
                    }
                    if (t && _.label < t[2]) {
                        _.label = t[2];
                        _.ops.push(op);
                        break;
                    }
                    if (t[2]) _.ops.pop();
                    _.trys.pop();
                    continue;
            }
            op = body.call(thisArg, _);
        } catch (e) {
            op = [
                6,
                e
            ];
            y = 0;
        } finally{
            f = t = 0;
        }
        if (op[0] & 5) throw op[1];
        return {
            value: op[0] ? op[1] : void 0,
            done: true
        };
    }
}
import { generateUniqueId } from "../utils";
/**
 * 通用键盘事件处理函数：响应 Enter / Space 触发回调
 */ export var handleKeyboardEvent = function handleKeyboardEvent(e, callback) {
    if (e.key === 'Enter' || e.key === ' ') {
        callback(e);
    }
};
/**
 * 浏览器端默认下载行为：根据 url / content / file 创建下载链接并触发点击
 * Blob URL 在结束后会被立即 revokeObjectURL 回收
 */ export var handleFileDownload = function handleFileDownload(file) {
    var blobUrl = null;
    try {
        var link = document.createElement('a');
        if (file.url) {
            link.href = file.url;
        } else if (file.content) {
            var blob = new Blob([
                file.content
            ], {
                type: 'text/plain'
            });
            blobUrl = URL.createObjectURL(blob);
            link.href = blobUrl;
        } else if (_instanceof(file.file, File) || _instanceof(file.file, Blob)) {
            blobUrl = URL.createObjectURL(file.file);
            link.href = blobUrl;
        } else {
            return;
        }
        link.download = file.name || (_instanceof(file.file, File) ? file.file.name : '');
        document.body.appendChild(link);
        link.click();
        document.body.removeChild(link);
    } finally{
        if (blobUrl) {
            URL.revokeObjectURL(blobUrl);
        }
    }
};
/**
 * 默认分享行为：复制可分享的 URL 到剪贴板
 * 复制失败时静默处理，避免打断用户流程
 */ export var handleDefaultShare = function handleDefaultShare(file) {
    return _async_to_generator(function() {
        var shareUrl, unused;
        return _ts_generator(this, function(_state) {
            switch(_state.label){
                case 0:
                    _state.trys.push([
                        0,
                        2,
                        ,
                        3
                    ]);
                    shareUrl = file.url || file.previewUrl || window.location.href;
                    return [
                        4,
                        navigator.clipboard.writeText(shareUrl)
                    ];
                case 1:
                    _state.sent();
                    return [
                        3,
                        3
                    ];
                case 2:
                    unused = _state.sent();
                    return [
                        3,
                        3
                    ];
                case 3:
                    return [
                        2
                    ];
            }
        });
    })();
};
/**
 * 确保节点拥有唯一 ID（不可变更新）
 */ export var ensureNodeWithId = function ensureNodeWithId(node) {
    return _object_spread_props(_object_spread({}, node), {
        id: node.id || generateUniqueId(node)
    });
};
/**
 * 获取文件预览源：优先 previewUrl，其次 url，否则空字符串
 */ export var getPreviewSource = function getPreviewSource(file) {
    return file.previewUrl || file.url || '';
};
