import { logger, Tree } from '@nx/devkit';
import { ProjectDetails } from '../../generator';

interface TsconfigJson {
  compilerOptions: {
    paths: Record<string, string[]>;
  };
}

export function updateBaseTsconfigJson(tree: Tree, options: ProjectDetails) {
  const possibleTsConfigBaseFileNames = ['tsconfig.base.json', 'tsconfig.json'];

  const tsConfigBaseFileName = possibleTsConfigBaseFileNames.find((fileName) =>
    tree.exists(fileName)
  );

  if (!tsConfigBaseFileName) {
    logger.warn(
      `Could not find a base tsconfig file in the workspace root (tried ${possibleTsConfigBaseFileNames.join(
        ' and '
      )}). Typescript paths for the library will not be added.`
    );
    return;
  }

  // eslint-disable-next-line @typescript-eslint/no-non-null-assertion
  const baseTsconfigJsonBuffer: Buffer = tree.read(tsConfigBaseFileName)!;

  const baseTsconfigJson = JSON.parse(baseTsconfigJsonBuffer.toString()) as TsconfigJson;

  baseTsconfigJson.compilerOptions.paths ??= {};
  baseTsconfigJson.compilerOptions.paths[options.projectName] = [
    `${options.projectRoot}/src/index.ts`
  ];
  baseTsconfigJson.compilerOptions.paths[`${options.projectName}/*`] = [
    `${options.projectRoot}/*/src/index.ts`
  ];

  tree.write(tsConfigBaseFileName, JSON.stringify(baseTsconfigJson, null, 2));
}