import {
    top,
    left,
    right,
    bottom,
    start
} from "../enums.js";
import getBasePlacement from "../utils/getBasePlacement.js";
import getMainAxisFromPlacement from "../utils/getMainAxisFromPlacement.js";
import getAltAxis from "../utils/getAltAxis.js";
import within from "../utils/within.js";
import getLayoutRect from "../dom-utils/getLayoutRect.js";
import getOffsetParent from "../dom-utils/getOffsetParent.js";
import detectOverflow from "../utils/detectOverflow.js";
import getVariation from "../utils/getVariation.js";
import getFreshSideObject from "../utils/getFreshSideObject.js";

function preventOverflow(_ref) {
    var state = _ref.state,
        options = _ref.options,
        name = _ref.name;
    var _options$mainAxis = options.mainAxis,
        checkMainAxis = _options$mainAxis === void 0 ? true : _options$mainAxis,
        _options$altAxis = options.altAxis,
        checkAltAxis = _options$altAxis === void 0 ? false : _options$altAxis,
        boundary = options.boundary,
        rootBoundary = options.rootBoundary,
        altBoundary = options.altBoundary,
        padding = options.padding,
        _options$tether = options.tether,
        tether = _options$tether === void 0 ? true : _options$tether,
        _options$tetherOffset = options.tetherOffset,
        tetherOffset = _options$tetherOffset === void 0 ? 0 : _options$tetherOffset;
    var overflow = detectOverflow(state, {
        boundary: boundary,
        rootBoundary: rootBoundary,
        padding: padding,
        altBoundary: altBoundary
    });
    var basePlacement = getBasePlacement(state.placement);
    var variation = getVariation(state.placement);
    var isBasePlacement = !variation;
    var mainAxis = getMainAxisFromPlacement(basePlacement);
    var altAxis = getAltAxis(mainAxis);
    var popperOffsets = state.modifiersData.popperOffsets;
    var referenceRect = state.rects.reference;
    var popperRect = state.rects.popper;
    var tetherOffsetValue = typeof tetherOffset === 'function' ? tetherOffset(Object.assign(Object.assign({}, state.rects), {}, {
        placement: state.placement
    })) : tetherOffset;
    var data = {
        x: 0,
        y: 0
    };

    if (!popperOffsets) {
        return;
    }

    if (checkMainAxis) {
        var mainSide = mainAxis === 'y' ? top : left;
        var altSide = mainAxis === 'y' ? bottom : right;
        var len = mainAxis === 'y' ? 'height' : 'width';
        var offset = popperOffsets[mainAxis];
        var min = popperOffsets[mainAxis] + overflow[mainSide];
        var max = popperOffsets[mainAxis] - overflow[altSide];
        var additive = tether ? -popperRect[len] / 2 : 0;
        var minLen = variation === start ? referenceRect[len] : popperRect[len];
        var maxLen = variation === start ? -popperRect[len] : -referenceRect[len]; // We need to include the arrow in the calculation so the arrow doesn't go
        // outside the reference bounds

        var arrowElement = state.elements.arrow;
        var arrowRect = tether && arrowElement ? getLayoutRect(arrowElement) : {
            width: 0,
            height: 0
        };
        var arrowPaddingObject = state.modifiersData['arrow#persistent'] ? state.modifiersData['arrow#persistent'].padding : getFreshSideObject();
        var arrowPaddingMin = arrowPaddingObject[mainSide];
        var arrowPaddingMax = arrowPaddingObject[altSide]; // If the reference length is smaller than the arrow length, we don't want
        // to include its full size in the calculation. If the reference is small
        // and near the edge of a boundary, the popper can overflow even if the
        // reference is not overflowing as well (e.g. virtual elements with no
        // width or height)

        var arrowLen = within(0, referenceRect[len], arrowRect[len]);
        var minOffset = isBasePlacement ? referenceRect[len] / 2 - additive - arrowLen - arrowPaddingMin - tetherOffsetValue : minLen - arrowLen - arrowPaddingMin - tetherOffsetValue;
        var maxOffset = isBasePlacement ? -referenceRect[len] / 2 + additive + arrowLen + arrowPaddingMax + tetherOffsetValue : maxLen + arrowLen + arrowPaddingMax + tetherOffsetValue;
        var arrowOffsetParent = state.elements.arrow && getOffsetParent(state.elements.arrow);
        var clientOffset = arrowOffsetParent ? mainAxis === 'y' ? arrowOffsetParent.clientTop || 0 : arrowOffsetParent.clientLeft || 0 : 0;
        var offsetModifierValue = state.modifiersData.offset ? state.modifiersData.offset[state.placement][mainAxis] : 0;
        var tetherMin = popperOffsets[mainAxis] + minOffset - offsetModifierValue - clientOffset;
        var tetherMax = popperOffsets[mainAxis] + maxOffset - offsetModifierValue;
        var preventedOffset = within(tether ? Math.min(min, tetherMin) : min, offset, tether ? Math.max(max, tetherMax) : max);
        popperOffsets[mainAxis] = preventedOffset;
        data[mainAxis] = preventedOffset - offset;
    }

    if (checkAltAxis) {
        var _mainSide = mainAxis === 'x' ? top : left;

        var _altSide = mainAxis === 'x' ? bottom : right;

        var _offset = popperOffsets[altAxis];

        var _min = _offset + overflow[_mainSide];

        var _max = _offset - overflow[_altSide];

        var _preventedOffset = within(_min, _offset, _max);

        popperOffsets[altAxis] = _preventedOffset;
        data[altAxis] = _preventedOffset - _offset;
    }

    state.modifiersData[name] = data;
} // eslint-disable-next-line import/no-unused-modules


export default {
    name: 'preventOverflow',
    enabled: true,
    phase: 'main',
    fn: preventOverflow,
    requiresIfExists: ['offset']
};