#!/usr/bin/env node

'use strict';

const prompt = require('prompt-promise');

const semver = require('semver');

const theme = require('../theme');

const {confirm} = require('../utils');

const run = async ({skipPackages}, versionsMap) => {

  const groupedVersionsMap = new Map();

  // Group packages with the same source versions.

  // We want these to stay lock-synced anyway.

  // This will require less redundant input from the user later,

  // and reduce the likelihood of human error (entering the wrong version).

  versionsMap.forEach((version, packageName) => {

    if (!groupedVersionsMap.has(version)) {

      groupedVersionsMap.set(version, [packageName]);

    } else {

      groupedVersionsMap.get(version).push(packageName);

    }

  });

  // Prompt user to confirm or override each version group.

  const entries = [...groupedVersionsMap.entries()];

  for (let i = 0; i < entries.length; i++) {

    const [bestGuessVersion, packages] = entries[i];

    const packageNames = packages.map(name => theme.package(name)).join(', ');

    let version = bestGuessVersion;

    if (

      skipPackages.some(skipPackageName =>

        packageNames.includes(skipPackageName)

      )

    ) {

      await confirm(

        theme`{spinnerSuccess ✓} Version for ${packageNames} will remain {version ${bestGuessVersion}}`

      );

    } else {

      const defaultVersion = bestGuessVersion

        ? theme.version(` (default ${bestGuessVersion})`)

        : '';

      version =

        (await prompt(

          theme`{spinnerSuccess ✓} Version for ${packageNames}${defaultVersion}: `

        )) || bestGuessVersion;

      prompt.done();

    }

    // Verify a valid version has been supplied.

    try {

      semver(version);

      packages.forEach(packageName => {

        versionsMap.set(packageName, version);

      });

    } catch (error) {

      console.log(

        theme`{spinnerError ✘} Version {version ${version}} is invalid.`

      );

      // Prompt again

      i--;

    }

  }

};

// Run this directly because it's fast,

// and logPromise would interfere with console prompting.

module.exports = run;