"use strict";
var __defProp = Object.defineProperty;
var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
var __getOwnPropNames = Object.getOwnPropertyNames;
var __hasOwnProp = Object.prototype.hasOwnProperty;
var __export = (target, all) => {
  for (var name in all)
    __defProp(target, name, { get: all[name], enumerable: true });
};
var __copyProps = (to, from, except, desc) => {
  if (from && typeof from === "object" || typeof from === "function") {
    for (let key of __getOwnPropNames(from))
      if (!__hasOwnProp.call(to, key) && key !== except)
        __defProp(to, key, { get: () => from[key], enumerable: !(desc = __getOwnPropDesc(from, key)) || desc.enumerable });
  }
  return to;
};
var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);

// src/index.ts
var src_exports = {};
__export(src_exports, {
  default: () => cropImageData
});
module.exports = __toCommonJS(src_exports);
function cropX(imageData, { left = 0, right = 0 }) {
  const { data, width, height } = imageData;
  const dataLength = data.length;
  const newWidth = width - left - right;
  const rowLength = width * 4;
  const newRowLength = newWidth * 4;
  const leftCrop = left * 4;
  const newData = [];
  for (let x = 0; x < dataLength; x += rowLength) {
    const newRowStart = x + leftCrop;
    const newRowEnd = newRowStart + newRowLength;
    for (let i = newRowStart; i < newRowEnd; i += 4) {
      newData.push(data[i], data[i + 1], data[i + 2], data[i + 3]);
    }
  }
  return { data: newData, height, width: newWidth };
}
function cropY(imageData, { top = 0, bottom = 0 }) {
  const { data, width, height } = imageData;
  const rowLength = width * 4;
  const topIndex = top * rowLength;
  const bottomIndex = bottom * rowLength;
  const newHeight = height - top - bottom;
  const newDataEnd = data.length - bottomIndex;
  const newData = [];
  for (let i = topIndex; i < newDataEnd; i++) {
    newData.push(data[i]);
  }
  return { data: newData, height: newHeight, width };
}
function toNumber(options) {
  return Object.fromEntries(
    Object.entries(options).map(([key, value]) => [key, Number(value || 0)])
  );
}
function cropImageData(imageData, cropOptions) {
  const { top, right, bottom, left } = toNumber(cropOptions);
  if (imageData.height < top + bottom || imageData.width < left + right) {
    return new ImageData(1, 1);
  }
  let newImageData = {
    data: imageData.data,
    width: imageData.width,
    height: imageData.height
  };
  if (top || bottom) {
    newImageData = cropY(newImageData, { top, bottom });
  }
  if (left || right) {
    newImageData = cropX(newImageData, { left, right });
  }
  const { data, height, width } = newImageData;
  return new ImageData(Uint8ClampedArray.from(data), width, height);
}