// @ts-expect-error We don't have types for this probably add .d.ts file
import mergeJsonStr from "merge-packages";
import fs from "fs";

export function mergePackageJson(
  targetPackageJsonPath: string,
  secondPackageJsonPath: string,
  isDev: boolean
) {
  const existsTarget = fs.existsSync(targetPackageJsonPath);
  const existsSecond = fs.existsSync(secondPackageJsonPath);
  if (!existsTarget && !existsSecond) {
    return;
  }

  const targetPackageJson = existsTarget ? fs.readFileSync(targetPackageJsonPath, "utf8") : '{}';

  const secondPackageJson = existsSecond ? fs.readFileSync(secondPackageJsonPath, "utf8") : '{}';

  const mergedPkgStr = mergeJsonStr.default(
    targetPackageJson,
    secondPackageJson
  );

  fs.writeFileSync(targetPackageJsonPath, mergedPkgStr, "utf8");
  if (isDev) {
    const devStr = `TODO: write relevant information for the contributor`
    fs.writeFileSync(`${targetPackageJsonPath}.dev`, devStr, "utf8");
  }
}