'use strict'

const assert = require('assert')
const mapSeries = require('p-map-series')
const fs = require('fs')
const path = require('path')
const rmrf = require('rimraf')
const levelup = require('levelup')
const leveldown = require('leveldown')
const OrbitDB = require('../src/OrbitDB')
const OrbitDBAddress = require('../src/orbit-db-address')

// Include test utilities
const {
  config,
  startIpfs,
  stopIpfs,
  testAPIs,
} = require('./utils')

const dbPath1 = './orbitdb/tests/create-open/1'
const dbPath2 = './orbitdb/tests/create-open/2'
const ipfsPath = './orbitdb/tests/create-open/ipfs'

Object.keys(testAPIs).forEach(API => {
  describe(`orbit-db - Replication Status (${API})`, function() {
    this.timeout(config.timeout)

    let ipfsd, ipfs, orbitdb1, orbitdb2, db, address
    let localDataPath

    before(async () => {
      config.daemon1.repo = ipfsPath
      rmrf.sync(config.daemon1.repo)
      rmrf.sync(dbPath1)
      rmrf.sync(dbPath2)
      ipfsd = await startIpfs(API, config.daemon1)
      ipfs = ipfsd.api
      orbitdb1 = await OrbitDB.createInstance(ipfs, { directory: dbPath1 })
      orbitdb2 = await OrbitDB.createInstance(ipfs, { directory: dbPath2 })
      db = await orbitdb1.log('replication status tests')
    })

    after(async () => {
      if(orbitdb1)
        await orbitdb1.stop()

      if(orbitdb2)
        await orbitdb2.stop()

      if (ipfsd)
        await stopIpfs(ipfsd)
    })

    it('has correct initial state', async () => {
      assert.deepEqual(db.replicationStatus, { buffered: 0, queued: 0, progress: 0, max: 0 })
    })

    it('has correct replication info after load', async () => {
      await db.add('hello')
      await db.close()
      await db.load()
      assert.deepEqual(db.replicationStatus, { buffered: 0, queued: 0, progress: 1, max: 1 })
    })

    it('has correct replication info after close', async () => {
      await db.close()
      assert.deepEqual(db.replicationStatus, { buffered: 0, queued: 0, progress: 0, max: 0 })
    })

    it('has correct replication info after sync', async () => {
      await db.load()
      await db.add('hello2')
      assert.deepEqual(db.replicationStatus, { buffered: 0, queued: 0, progress: 2, max: 2 })

      const db2 = await orbitdb2.log(db.address.toString(), { create: false, sync: false })
      await db2.sync(db._oplog.heads)

      return new Promise((resolve, reject) => {
        setTimeout(() => {
          try {
            assert.deepEqual(db2.replicationStatus, { buffered: 0, queued: 0, progress: 2, max: 2 })
            resolve()
          } catch (e) {
            reject(e)
          }
        }, 100)
      })
    })

    it('has correct replication info after loading from snapshot', async () => {
      await db.saveSnapshot()
      await db.close()
      await db.loadFromSnapshot()
      assert.deepEqual(db.replicationStatus, { buffered: 0, queued: 0, progress: 2, max: 2 })
    })
  })
})