using DistTestCore;
using DistTestCore.Codex;
using Newtonsoft.Json;
using NUnit.Framework;
using Utils;

namespace ContinuousTests.Tests
{
    public class MarketplaceTest : ContinuousTest
    {
        public override int RequiredNumberOfNodes => 1;
        public override TimeSpan RunTestEvery => TimeSpan.FromMinutes(15);
        public override TestFailMode TestFailMode => TestFailMode.StopAfterFirstFailure;
        public override int EthereumAccountIndex => 200;
        public override string CustomK8sNamespace => "codex-continuous-marketplace";

        private readonly uint numberOfSlots = 3;
        private readonly ByteSize fileSize = 10.MB();
        private readonly TestToken pricePerSlotPerSecond = 10.TestTokens();

        private TestFile file = null!;
        private ContentId? cid;
        private string purchaseId = string.Empty;

        [TestMoment(t: Zero)]
        public void NodePostsStorageRequest()
        {
            var contractDuration = TimeSpan.FromMinutes(11); //TimeSpan.FromDays(3) + TimeSpan.FromHours(1);
            decimal totalDurationSeconds = Convert.ToDecimal(contractDuration.TotalSeconds);
            var expectedTotalCost = numberOfSlots * pricePerSlotPerSecond.Amount * (totalDurationSeconds + 1) * 1000000;

            file = FileManager.GenerateTestFile(fileSize);

            NodeRunner.RunNode((codexAccess, marketplaceAccess) =>
            {
                cid = UploadFile(codexAccess.Node, file);
                Assert.That(cid, Is.Not.Null);

                purchaseId = marketplaceAccess.RequestStorage(
                    contentId: cid!,
                    pricePerSlotPerSecond: pricePerSlotPerSecond,
                    requiredCollateral: 100.TestTokens(),
                    minRequiredNumberOfNodes: numberOfSlots,
                    proofProbability: 10,
                    duration: contractDuration);

                Assert.That(!string.IsNullOrEmpty(purchaseId));

                WaitForContractToStart(codexAccess, purchaseId);
            });
        }

        [TestMoment(t: MinuteFive * 2)]
        public void StoredDataIsAvailableAfterThreeDays()
        {
            NodeRunner.RunNode((codexAccess, marketplaceAccess) =>
            {
                var result = DownloadFile(codexAccess.Node, cid!);

                file.AssertIsEqual(result);
            });
        }

        private void WaitForContractToStart(CodexAccess codexAccess, string purchaseId)
        {
            var lastState = "";
            var waitStart = DateTime.UtcNow;
            var filesizeInMb = fileSize.SizeInBytes / (1024 * 1024);
            var maxWaitTime = TimeSpan.FromSeconds(filesizeInMb * 10.0);

            Log.Log($"{nameof(WaitForContractToStart)} for {Time.FormatDuration(maxWaitTime)}");
            while (lastState != "started")
            {
                CancelToken.ThrowIfCancellationRequested();

                var purchaseStatus = codexAccess.Node.GetPurchaseStatus(purchaseId);
                var statusJson = JsonConvert.SerializeObject(purchaseStatus);
                if (purchaseStatus != null && purchaseStatus.state != lastState)
                {
                    lastState = purchaseStatus.state;
                    Log.Log("Purchase status: " + statusJson);
                }

                Thread.Sleep(2000);

                if (lastState == "errored")
                {
                    Assert.Fail("Contract start failed: " + statusJson);
                }

                if (DateTime.UtcNow - waitStart > maxWaitTime)
                {
                    Assert.Fail($"Contract was not picked up within {maxWaitTime.TotalSeconds} seconds timeout: {statusJson}");
                }
            }
            Log.Log("Contract started.");
        }
    }
}