nim-codex/tests/integration/testsales.nim

import std/httpclient
import pkg/codex/contracts
import ./twonodes
import ../codex/examples
import ../contracts/time
import ./codexconfig
import ./codexclient
import ./nodeconfigs

proc findItem[T](items: seq[T], item: T): ?!T =
  for tmp in items:
    if tmp == item:
      return success tmp

  return failure("Not found")

multinodesuite "Sales":
  let salesConfig = NodeConfigs(
    clients: CodexConfigs.init(nodes=1).some,
    providers: CodexConfigs.init(nodes=1).some,
  )
  
  var host: CodexClient
  var client: CodexClient

  setup:
    host = providers()[0].client
    client = clients()[0].client

  test "node handles new storage availability", salesConfig:
    let availability1 = host.postAvailability(totalSize=1.u256, duration=2.u256, minPrice=3.u256, maxCollateral=4.u256).get
    let availability2 = host.postAvailability(totalSize=4.u256, duration=5.u256, minPrice=6.u256, maxCollateral=7.u256).get
    check availability1 != availability2

  test "node lists storage that is for sale", salesConfig:
    let availability = host.postAvailability(totalSize=1.u256, duration=2.u256, minPrice=3.u256, maxCollateral=4.u256).get
    check availability in host.getAvailabilities().get

  test "updating non-existing availability", salesConfig:
    let nonExistingResponse = host.patchAvailabilityRaw(AvailabilityId.example, duration=100.u256.some, minPrice=200.u256.some, maxCollateral=200.u256.some)
    check nonExistingResponse.status == "404 Not Found"

  test "updating availability", salesConfig:
    let availability = host.postAvailability(totalSize=140000.u256, duration=200.u256, minPrice=300.u256, maxCollateral=300.u256).get

    host.patchAvailability(availability.id, duration=100.u256.some, minPrice=200.u256.some, maxCollateral=200.u256.some)

    let updatedAvailability = (host.getAvailabilities().get).findItem(availability).get
    check updatedAvailability.duration == 100
    check updatedAvailability.minPrice == 200
    check updatedAvailability.maxCollateral == 200
    check updatedAvailability.totalSize == 140000
    check updatedAvailability.freeSize == 140000

  test "updating availability - freeSize is not allowed to be changed", salesConfig:
    let availability = host.postAvailability(totalSize=140000.u256, duration=200.u256, minPrice=300.u256, maxCollateral=300.u256).get
    let freeSizeResponse = host.patchAvailabilityRaw(availability.id, freeSize=110000.u256.some)
    check freeSizeResponse.status == "400 Bad Request"
    check "not allowed" in  freeSizeResponse.body

  test "updating availability - updating totalSize", salesConfig:
    let availability = host.postAvailability(totalSize=140000.u256, duration=200.u256, minPrice=300.u256, maxCollateral=300.u256).get
    host.patchAvailability(availability.id, totalSize=100000.u256.some)
    let updatedAvailability = (host.getAvailabilities().get).findItem(availability).get
    check updatedAvailability.totalSize == 100000
    check updatedAvailability.freeSize == 100000

  test "updating availability - updating totalSize does not allow bellow utilized", salesConfig:
    let originalSize = 0xFFFFFF.u256
    let data = await RandomChunker.example(blocks=8)
    let availability = host.postAvailability(totalSize=originalSize, duration=20*60.u256, minPrice=300.u256, maxCollateral=300.u256).get

    # Lets create storage request that will utilize some of the availability's space
    let cid = client.upload(data).get
    let id = client.requestStorage(
      cid,
      duration=20*60.u256,
      reward=400.u256,
      proofProbability=3.u256,
      expiry=10*60,
      collateral=200.u256,
      nodes = 3,
      tolerance = 1).get

    check eventually(client.purchaseStateIs(id, "started"), timeout=10*60*1000)
    let updatedAvailability = (host.getAvailabilities().get).findItem(availability).get
    check updatedAvailability.totalSize != updatedAvailability.freeSize

    let utilizedSize = updatedAvailability.totalSize - updatedAvailability.freeSize
    let totalSizeResponse = host.patchAvailabilityRaw(availability.id, totalSize=(utilizedSize-1.u256).some)
    check totalSizeResponse.status == "400 Bad Request"
    check "totalSize must be larger then current totalSize" in totalSizeResponse.body

    host.patchAvailability(availability.id, totalSize=(originalSize + 20000).some)
    let newUpdatedAvailability = (host.getAvailabilities().get).findItem(availability).get
    check newUpdatedAvailability.totalSize == originalSize + 20000
    check newUpdatedAvailability.freeSize - updatedAvailability.freeSize == 20000