import getClippingRect from "../dom-utils/getClippingRect.js";
import getDocumentElement from "../dom-utils/getDocumentElement.js";
import getBoundingClientRect from "../dom-utils/getBoundingClientRect.js";
import computeOffsets from "./computeOffsets.js";
import rectToClientRect from "./rectToClientRect.js";
import {
    clippingParents,
    reference,
    popper,
    bottom,
    top,
    right,
    basePlacements,
    viewport
} from "../enums.js";
import {
    isElement
} from "../dom-utils/instanceOf.js";
import mergePaddingObject from "./mergePaddingObject.js";
import expandToHashMap from "./expandToHashMap.js"; // eslint-disable-next-line import/no-unused-modules

export default function detectOverflow(state, options) {
    if (options === void 0) {
        options = {};
    }

    var _options = options,
        _options$placement = _options.placement,
        placement = _options$placement === void 0 ? state.placement : _options$placement,
        _options$boundary = _options.boundary,
        boundary = _options$boundary === void 0 ? clippingParents : _options$boundary,
        _options$rootBoundary = _options.rootBoundary,
        rootBoundary = _options$rootBoundary === void 0 ? viewport : _options$rootBoundary,
        _options$elementConte = _options.elementContext,
        elementContext = _options$elementConte === void 0 ? popper : _options$elementConte,
        _options$altBoundary = _options.altBoundary,
        altBoundary = _options$altBoundary === void 0 ? false : _options$altBoundary,
        _options$padding = _options.padding,
        padding = _options$padding === void 0 ? 0 : _options$padding;
    var paddingObject = mergePaddingObject(typeof padding !== 'number' ? padding : expandToHashMap(padding, basePlacements));
    var altContext = elementContext === popper ? reference : popper;
    var popperRect = state.rects.popper;
    var element = state.elements[altBoundary ? altContext : elementContext];
    var clippingClientRect = getClippingRect(isElement(element) ? element : element.contextElement || getDocumentElement(state.elements.popper), boundary, rootBoundary);
    var referenceClientRect = getBoundingClientRect(state.elements.reference);
    var popperOffsets = computeOffsets({
        reference: referenceClientRect,
        element: popperRect,
        strategy: 'absolute',
        placement: placement
    });
    var popperClientRect = rectToClientRect(Object.assign({}, popperRect, popperOffsets));
    var elementClientRect = elementContext === popper ? popperClientRect : referenceClientRect; // positive = overflowing the clipping rect
    // 0 or negative = within the clipping rect

    var overflowOffsets = {
        top: clippingClientRect.top - elementClientRect.top + paddingObject.top,
        bottom: elementClientRect.bottom - clippingClientRect.bottom + paddingObject.bottom,
        left: clippingClientRect.left - elementClientRect.left + paddingObject.left,
        right: elementClientRect.right - clippingClientRect.right + paddingObject.right
    };
    var offsetData = state.modifiersData.offset; // Offsets can be applied only to the popper element

    if (elementContext === popper && offsetData) {
        var offset = offsetData[placement];
        Object.keys(overflowOffsets).forEach(function(key) {
            var multiply = [right, bottom].indexOf(key) >= 0 ? 1 : -1;
            var axis = [top, bottom].indexOf(key) >= 0 ? 'y' : 'x';
            overflowOffsets[key] += offset[axis] * multiply;
        });
    }

    return overflowOffsets;
}