const { expect } = require('chai')
const { promisify } = require('node:util')
const { exec } = require('node:child_process')
const logger = require('@overleaf/logger')
const { db } = require('../../../app/src/infrastructure/mongodb')

async function runScript(args = []) {
  try {
    return await promisify(exec)(
      ['node', 'scripts/migration_compile_timeout_60s_to_20s.js', ...args].join(
        ' '
      )
    )
  } catch (error) {
    logger.error({ error }, 'script failed')
    throw error
  }
}

describe('MigrateUserFeatureTimeoutTests', function () {
  const usersInput = {
    noFeatures: {},
    noFeatureTimeout: { features: {} },
    timeout10s: { features: { compileTimeout: 10, other: 'val1' }, bar: '1' },
    timeout20s: { features: { compileTimeout: 20, other: 'val2' }, bar: '2' },
    timeout30s: { features: { compileTimeout: 30, other: 'val3' }, bar: '3' },
    timeout60s: { features: { compileTimeout: 60, other: 'val4' }, bar: '4' },
    timeout120s: { features: { compileTimeout: 120, other: 'val5' }, bar: '5' },
    timeout180s: { features: { compileTimeout: 180, other: 'val6' }, bar: '6' },
  }

  const usersKeys = Object.keys(usersInput)
  const userIds = {}

  beforeEach('insert users', async function () {
    const usersInsertedValues = await db.users.insertMany(
      usersKeys.map(key => ({
        ...usersInput[key],
        email: `${key}@example.com`,
      }))
    )
    usersKeys.forEach(
      (key, index) => (userIds[key] = usersInsertedValues.insertedIds[index])
    )
  })

  it('gives correct counts in dry mode', async function () {
    const users = await db.users.find().toArray()
    expect(users).to.have.lengthOf(usersKeys.length)

    const result = await runScript([])

    expect(result.stderr).to.contain(
      'Doing dry run. Add --commit to commit changes'
    )
    expect(result.stdout).to.contain(
      'Found 3 users with compileTimeout <= 60s && != 20s'
    )
    expect(result.stdout).to.contain('Found 1 users with compileTimeout == 20s')
    expect(result.stdout).not.to.contain('Updated')

    const usersAfter = await db.users.find().toArray()

    expect(usersAfter).to.deep.equal(users)
  })

  it("updates users compileTimeout when '--commit' is set", async function () {
    const users = await db.users.find().toArray()
    expect(users).to.have.lengthOf(usersKeys.length)
    const result = await runScript(['--commit'])

    expect(result.stdout).to.contain(
      'Found 3 users with compileTimeout <= 60s && != 20s'
    )
    expect(result.stdout).to.contain('Found 1 users with compileTimeout == 20s')
    expect(result.stdout).to.contain('Updated 3 records')

    const usersAfter = await db.users.find().toArray()

    expect(usersAfter).to.deep.equal([
      { _id: userIds.noFeatures, email: 'noFeatures@example.com' },
      {
        _id: userIds.noFeatureTimeout,
        email: 'noFeatureTimeout@example.com',
        features: {},
      },
      {
        _id: userIds.timeout10s,
        email: 'timeout10s@example.com',
        features: { compileTimeout: 20, other: 'val1' },
        bar: '1',
      },
      {
        _id: userIds.timeout20s,
        email: 'timeout20s@example.com',
        features: { compileTimeout: 20, other: 'val2' },
        bar: '2',
      },
      {
        _id: userIds.timeout30s,
        email: 'timeout30s@example.com',
        features: { compileTimeout: 20, other: 'val3' },
        bar: '3',
      },
      {
        _id: userIds.timeout60s,
        email: 'timeout60s@example.com',
        features: { compileTimeout: 20, other: 'val4' },
        bar: '4',
      },
      {
        _id: userIds.timeout120s,
        email: 'timeout120s@example.com',
        features: { compileTimeout: 120, other: 'val5' },
        bar: '5',
      },
      {
        _id: userIds.timeout180s,
        email: 'timeout180s@example.com',
        features: { compileTimeout: 180, other: 'val6' },
        bar: '6',
      },
    ])

    const result2 = await runScript([])

    expect(result2.stdout).to.contain(
      'Found 0 users with compileTimeout <= 60s && != 20s'
    )
    expect(result2.stdout).to.contain(
      'Found 4 users with compileTimeout == 20s'
    )
  })
})