@prisma/sdk/dist/utils/byline.js

var __create = Object.create;
var __defProp = Object.defineProperty;
var __getOwnPropDesc = Object.getOwnPropertyDescriptor;
var __getOwnPropNames = Object.getOwnPropertyNames;
var __getProtoOf = Object.getPrototypeOf;
var __hasOwnProp = Object.prototype.hasOwnProperty;
var __name = (target, value) => __defProp(target, "name", { value, configurable: true });
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 __toESM = (mod, isNodeMode, target) => (target = mod != null ? __create(__getProtoOf(mod)) : {}, __copyProps(isNodeMode || !mod || !mod.__esModule ? __defProp(target, "default", { value: mod, enumerable: true }) : target, mod));
var __toCommonJS = (mod) => __copyProps(__defProp({}, "__esModule", { value: true }), mod);
var byline_exports = {};
__export(byline_exports, {
  LineStream: () => LineStream,
  createLineStream: () => createLineStream,
  createStream: () => createStream,
  default: () => byline
});
module.exports = __toCommonJS(byline_exports);
var import_stream = __toESM(require("stream"));
var import_util = __toESM(require("util"));
function byline(readStream, options) {
  return createStream(readStream, options);
}
__name(byline, "byline");
function createStream(readStream, options) {
  if (readStream) {
    return createLineStream(readStream, options);
  } else {
    return new LineStream(options);
  }
}
__name(createStream, "createStream");
function createLineStream(readStream, options) {
  if (!readStream) {
    throw new Error("expected readStream");
  }
  if (!readStream.readable) {
    throw new Error("readStream must be readable");
  }
  const ls = new LineStream(options);
  readStream.pipe(ls);
  return ls;
}
__name(createLineStream, "createLineStream");
function LineStream(options) {
  import_stream.default.Transform.call(this, options);
  options = options || {};
  this._readableState.objectMode = true;
  this._lineBuffer = [];
  this._keepEmptyLines = options.keepEmptyLines || false;
  this._lastChunkEndedWithCR = false;
  this.on("pipe", function(src) {
    if (!this.encoding) {
      if (src instanceof import_stream.default.Readable) {
        this.encoding = src._readableState.encoding;
      }
    }
  });
}
__name(LineStream, "LineStream");
import_util.default.inherits(LineStream, import_stream.default.Transform);
LineStream.prototype._transform = function(chunk, encoding, done) {
  encoding = encoding || "utf8";
  if (Buffer.isBuffer(chunk)) {
    if (encoding == "buffer") {
      chunk = chunk.toString();
      encoding = "utf8";
    } else {
      chunk = chunk.toString(encoding);
    }
  }
  this._chunkEncoding = encoding;
  const lines = chunk.split(/\r\n|\r|\n/g);
  if (this._lastChunkEndedWithCR && chunk[0] == "\n") {
    lines.shift();
  }
  if (this._lineBuffer.length > 0) {
    this._lineBuffer[this._lineBuffer.length - 1] += lines[0];
    lines.shift();
  }
  this._lastChunkEndedWithCR = chunk[chunk.length - 1] == "\r";
  this._lineBuffer = this._lineBuffer.concat(lines);
  this._pushBuffer(encoding, 1, done);
};
LineStream.prototype._pushBuffer = function(encoding, keep, done) {
  while (this._lineBuffer.length > keep) {
    const line = this._lineBuffer.shift();
    if (this._keepEmptyLines || line.length > 0) {
      if (!this.push(this._reencode(line, encoding))) {
        const self = this;
        setImmediate(function() {
          self._pushBuffer(encoding, keep, done);
        });
        return;
      }
    }
  }
  done();
};
LineStream.prototype._flush = function(done) {
  this._pushBuffer(this._chunkEncoding, 0, done);
};
LineStream.prototype._reencode = function(line, chunkEncoding) {
  if (this.encoding && this.encoding != chunkEncoding) {
    return Buffer.from(line, chunkEncoding).toString(this.encoding);
  } else if (this.encoding) {
    return line;
  } else {
    return Buffer.from(line, chunkEncoding);
  }
};
// Annotate the CommonJS export names for ESM import in node:
0 && (module.exports = {
  LineStream,
  createLineStream,
  createStream
});