/* eslint-disable @typescript-eslint/no-unsafe-return */
(function (factory) {
    if (typeof module === "object" && typeof module.exports === "object") {
        var v = factory(require, exports);
        if (v !== undefined) module.exports = v;
    }
    else if (typeof define === "function" && define.amd) {
        define(["require", "exports"], factory);
    }
})(function (require, exports) {
    "use strict";
    Object.defineProperty(exports, "__esModule", { value: true });
    exports.create = create;
    function create(target, parent, option, depth) {
        // eslint-disable-next-line @typescript-eslint/prefer-nullish-coalescing
        depth = depth || 0;
        // Make all the children of target also observable
        for (const key in target) {
            if (typeof target[key] === 'object' && target[key] !== null) {
                target[key] = create(target[key], 
                // eslint-disable-next-line @typescript-eslint/prefer-nullish-coalescing
                (parent || target), option, depth + 1);
            }
        }
        Object.defineProperty(target, '__dataChanged', {
            value: false,
            writable: true,
        });
        return new Proxy(target, {
            deleteProperty(target, name) {
                if (parent === undefined) {
                    // If no parent is given mark current data as changed
                    target.__dataChanged = true;
                }
                else {
                    // If parent is given mark the parent data as changed
                    parent.__dataChanged = true;
                }
                return Reflect.deleteProperty(target, name);
            },
            get(target, name, receiver) {
                return Reflect.get(target, name, receiver);
            },
            has(target, key) {
                return Reflect.has(target, key);
            },
            set(target, name, value) {
                if (parent === undefined) {
                    // If no parent is given mark current data as changed
                    if (option !== undefined &&
                        option.ignoreEmptyOnFirstChild === true &&
                        depth === 0 &&
                        target[name.toString()] === undefined &&
                        typeof value === 'object' &&
                        // eslint-disable-next-line @typescript-eslint/no-unsafe-argument
                        Object.keys(value).length === 0) {
                    }
                    else {
                        target.__dataChanged = true;
                    }
                }
                else {
                    // If parent is given mark the parent data as changed
                    parent.__dataChanged = true;
                }
                return Reflect.set(target, name, value);
            },
        });
    }
});
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