/*---------------------------------------------------------------------------------------------
 *  Copyright (c) Red Hat, Inc. All rights reserved.
 *  Licensed under the MIT License. See License.txt in the project root for license information.
 *--------------------------------------------------------------------------------------------*/
(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", "yaml"], factory);
    }
})(function (require, exports) {
    "use strict";
    Object.defineProperty(exports, "__esModule", { value: true });
    exports.getParent = getParent;
    exports.isMapContainsEmptyPair = isMapContainsEmptyPair;
    exports.indexOf = indexOf;
    exports.isInComment = isInComment;
    exports.isCollectionItem = isCollectionItem;
    const yaml_1 = require("yaml");
    function getParent(doc, nodeToFind) {
        let parentNode;
        (0, yaml_1.visit)(doc, (_, node, path) => {
            if (node === nodeToFind) {
                parentNode = path[path.length - 1];
                return yaml_1.visit.BREAK;
            }
        });
        if ((0, yaml_1.isDocument)(parentNode)) {
            return undefined;
        }
        return parentNode;
    }
    function isMapContainsEmptyPair(map) {
        if (map.items.length > 1) {
            return false;
        }
        const pair = map.items[0];
        return (0, yaml_1.isScalar)(pair.key) && (0, yaml_1.isScalar)(pair.value) && pair.key.value === '' && !pair.value.value;
    }
    function indexOf(seq, item) {
        for (const [i, obj] of seq.items.entries()) {
            if (item === obj) {
                return i;
            }
        }
        return undefined;
    }
    /**
     * Check that given offset is in YAML comment
     * @param doc the yaml document
     * @param offset the offset to check
     */
    function isInComment(tokens, offset) {
        let inComment = false;
        for (const token of tokens) {
            if (token.type === 'document') {
                _visit([], token, (item) => {
                    if (isCollectionItem(item) && item.value?.type === 'comment') {
                        if (token.offset <= offset && item.value.source.length + item.value.offset >= offset) {
                            inComment = true;
                            return yaml_1.visit.BREAK;
                        }
                    }
                    else if (item.type === 'comment' && item.offset <= offset && item.offset + item.source.length >= offset) {
                        inComment = true;
                        return yaml_1.visit.BREAK;
                    }
                });
            }
            else if (token.type === 'comment') {
                if (token.offset <= offset && token.source.length + token.offset >= offset) {
                    return true;
                }
            }
            if (inComment) {
                break;
            }
        }
        return inComment;
    }
    function isCollectionItem(token) {
        return token['start'] !== undefined;
    }
    function _visit(path, item, visitor) {
        let ctrl = visitor(item, path);
        if (typeof ctrl === 'symbol')
            return ctrl;
        for (const field of ['key', 'value']) {
            const token = item[field];
            if (token && 'items' in token) {
                for (let i = 0; i < token.items.length; ++i) {
                    const ci = _visit(Object.freeze(path.concat([[field, i]])), token.items[i], visitor);
                    if (typeof ci === 'number')
                        i = ci - 1;
                    else if (ci === yaml_1.visit.BREAK)
                        return yaml_1.visit.BREAK;
                    else if (ci === yaml_1.visit.REMOVE) {
                        token.items.splice(i, 1);
                        i -= 1;
                    }
                }
                if (typeof ctrl === 'function' && field === 'key')
                    ctrl = ctrl(item, path);
            }
        }
        const token = item['sep'];
        if (token) {
            for (let i = 0; i < token.length; ++i) {
                const ci = _visit(Object.freeze(path), token[i], visitor);
                if (typeof ci === 'number')
                    i = ci - 1;
                else if (ci === yaml_1.visit.BREAK)
                    return yaml_1.visit.BREAK;
                else if (ci === yaml_1.visit.REMOVE) {
                    token.items.splice(i, 1);
                    i -= 1;
                }
            }
        }
        return typeof ctrl === 'function' ? ctrl(item, path) : ctrl;
    }
});
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