"use client";
'use strict';

// src/hovercard/utils/polygon.ts
function getEventPoint(event) {
  return [event.clientX, event.clientY];
}
function isPointInPolygon(point, polygon) {
  const [x, y] = point;
  let inside = false;
  const length = polygon.length;
  for (let l = length, i = 0, j = l - 1; i < l; j = i++) {
    const [xi, yi] = polygon[i];
    const [xj, yj] = polygon[j];
    const [, vy] = polygon[j === 0 ? l - 1 : j - 1] || [0, 0];
    const where = (yi - yj) * (x - xi) - (xi - xj) * (y - yi);
    if (yj < yi) {
      if (y >= yj && y < yi) {
        if (where === 0) return true;
        if (where > 0) {
          if (y === yj) {
            if (y > vy) {
              inside = !inside;
            }
          } else {
            inside = !inside;
          }
        }
      }
    } else if (yi < yj) {
      if (y > yi && y <= yj) {
        if (where === 0) return true;
        if (where < 0) {
          if (y === yj) {
            if (y < vy) {
              inside = !inside;
            }
          } else {
            inside = !inside;
          }
        }
      }
    } else if (y === yi && (x >= xj && x <= xi || x >= xi && x <= xj)) {
      return true;
    }
  }
  return inside;
}
function getEnterPointPlacement(enterPoint, rect) {
  const { top, right, bottom, left } = rect;
  const [x, y] = enterPoint;
  const placementX = x < left ? "left" : x > right ? "right" : null;
  const placementY = y < top ? "top" : y > bottom ? "bottom" : null;
  return [placementX, placementY];
}
function getElementPolygon(element, enterPoint) {
  const rect = element.getBoundingClientRect();
  const { top, right, bottom, left } = rect;
  const [x, y] = getEnterPointPlacement(enterPoint, rect);
  const polygon = [enterPoint];
  if (x) {
    if (y !== "top") {
      polygon.push([x === "left" ? left : right, top]);
    }
    polygon.push([x === "left" ? right : left, top]);
    polygon.push([x === "left" ? right : left, bottom]);
    if (y !== "bottom") {
      polygon.push([x === "left" ? left : right, bottom]);
    }
  } else if (y === "top") {
    polygon.push([left, top]);
    polygon.push([left, bottom]);
    polygon.push([right, bottom]);
    polygon.push([right, top]);
  } else {
    polygon.push([left, bottom]);
    polygon.push([left, top]);
    polygon.push([right, top]);
    polygon.push([right, bottom]);
  }
  return polygon;
}

exports.getElementPolygon = getElementPolygon;
exports.getEventPoint = getEventPoint;
exports.isPointInPolygon = isPointInPolygon;
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