"use strict";
Object.defineProperty(exports, "__esModule", { value: true });
var solver_1 = require("./solver");
var all_affected_1 = require("./utils/all-affected");
var DOMutils_1 = require("./utils/DOMutils");
var firstFocus_1 = require("./utils/firstFocus");
var is_1 = require("./utils/is");
var parenting_1 = require("./utils/parenting");
var findAutoFocused = function (autoFocusables) { return function (node) {
    return node.autofocus || (node.dataset && !!node.dataset.autofocus) || autoFocusables.indexOf(node) >= 0;
}; };
var reorderNodes = function (srcNodes, dstNodes) {
    var remap = new Map();
    dstNodes.forEach(function (entity) { return remap.set(entity.node, entity); });
    return srcNodes.map(function (node) { return remap.get(node); }).filter(is_1.isDefined);
};
exports.getFocusMerge = function (topNode, lastNode) {
    var activeElement = (document && document.activeElement);
    var entries = all_affected_1.getAllAffectedNodes(topNode).filter(is_1.isNotAGuard);
    var commonParent = parenting_1.getTopCommonParent(activeElement || topNode, topNode, entries);
    var anyFocusable = DOMutils_1.getAllTabbableNodes(entries);
    var innerElements = DOMutils_1.getTabbableNodes(entries).filter(function (_a) {
        var node = _a.node;
        return is_1.isNotAGuard(node);
    });
    if (!innerElements[0]) {
        innerElements = anyFocusable;
        if (!innerElements[0]) {
            return undefined;
        }
    }
    var outerNodes = DOMutils_1.getAllTabbableNodes([commonParent]).map(function (_a) {
        var node = _a.node;
        return node;
    });
    var orderedInnerElements = reorderNodes(outerNodes, innerElements);
    var innerNodes = orderedInnerElements.map(function (_a) {
        var node = _a.node;
        return node;
    });
    var newId = solver_1.newFocus(innerNodes, outerNodes, activeElement, lastNode);
    if (newId === solver_1.NEW_FOCUS) {
        var autoFocusable = anyFocusable
            .map(function (_a) {
            var node = _a.node;
            return node;
        })
            .filter(findAutoFocused(parenting_1.allParentAutofocusables(entries)));
        return {
            node: autoFocusable && autoFocusable.length ? firstFocus_1.pickFirstFocus(autoFocusable) : firstFocus_1.pickFirstFocus(innerNodes),
        };
    }
    if (newId === undefined) {
        return newId;
    }
    return orderedInnerElements[newId];
};