import fs from "fs/promises";
import ora from "ora";
import type { Config, Project } from "../types.js";
import { getConfig } from "../utils/config.js";
import { exec } from "child_process";

const spinner = ora("Getting all Project Data").start();

export async function checkDependencies() {
  const config: Config = await getConfig();
  let projectAudits: PromiseSettledResult<Project>[];
  let projects: Promise<Project>[] = [];

  try {
    const entries = await fs.readdir(config.path, { withFileTypes: true });

    for (let entry of entries) {
      if (!entry.isDirectory()) {
        continue;
      }

      let dirFullPath = `${config.path}${entry.name}`;
      const projectDir = await fs.readdir(dirFullPath);

      if (projectDir.includes("package.json")) {
        let auditPromise = getAuditPromise(dirFullPath, entry.name);
        projects.push(auditPromise);
      }
    }

    projectAudits = await Promise.allSettled(projects);

    spinner.succeed("Got the Data successfully");

    return projectAudits;
  } catch (error) {
    spinner.fail("Ups and Error :(");
    throw error;
  }
}

async function getAuditPromise(
  path: string,
  dirname: string,
): Promise<Project> {
  return new Promise(async (resolve, reject) => {
    await pullLatest(path);

    spinner.text = "getting audit";
    promiseExec(
      `cd "${path}" && npm audit --json`,
      (_: any, stdout: string) => {
        let output = JSON.parse(stdout);
        let project: Project = { projectName: dirname, ...output };
        if (project.error) {
          reject(
            `${dirname} could not be audited, maybe package lock is corrupted`,
          );
        }
        resolve(project);
      },
    );
  });
}

async function pullLatest(path: string) {
  spinner.text = "pulling latest";
  await promiseExec(`cd "${path}" && git pull `, () => {});
}

function promiseExec<T>(cmd: string, callback: any): Promise<T> {
  return new Promise((resolve, _) => {
    exec(cmd, (err, stdout, stderr) => {
      resolve(callback(err, stdout, stderr));
    });
  });
}