using DistTestCore.Codex;
using DistTestCore.Marketplace;
using KubernetesWorkflow;

namespace DistTestCore
{
    public interface ICodexSetup
    {
        ICodexSetup At(Location location);
        ICodexSetup WithLogLevel(CodexLogLevel level);
        ICodexSetup WithBootstrapNode(IOnlineCodexNode node);
        ICodexSetup WithStorageQuota(ByteSize storageQuota);
        ICodexSetup EnableMetrics();
        ICodexSetup EnableMarketplace(TestToken initialBalance);
        ICodexSetup EnableMarketplace(TestToken initialBalance, Ether initialEther);
        ICodexNodeGroup BringOnline();
    }
    
    public class CodexSetup : CodexStartupConfig, ICodexSetup
    {
        private readonly CodexStarter starter;

        public int NumberOfNodes { get; }

        public CodexSetup(CodexStarter starter, int numberOfNodes)
        {
            this.starter = starter;
            NumberOfNodes = numberOfNodes;
        }

        public ICodexNodeGroup BringOnline()
        {
            var group = starter.BringOnline(this);
            ConnectToBootstrapNode(group);
            return group;
        }

        private void ConnectToBootstrapNode(ICodexNodeGroup group)
        {
            if (BootstrapNode == null) return;

            // TODO:
            // node.ConnectToPeer uses the '/api/codex/vi/connect/' endpoint to make the connection.
            // This should be replaced by injecting the bootstrap node's SPR into the env-vars of the new node containers. (Easy!)
            // However, NAT isn't figure out yet. So connecting with SPR doesn't (always?) work.
            // So for now, ConnectToPeer
            foreach (var node in group)
            {
                node.ConnectToPeer(BootstrapNode);
            }
        }

        public ICodexSetup At(Location location)
        {
            Location = location;
            return this;
        }

        public ICodexSetup WithBootstrapNode(IOnlineCodexNode node)
        {
            BootstrapNode = node;
            return this;
        }

        public ICodexSetup WithLogLevel(CodexLogLevel level)
        {
            LogLevel = level;
            return this;
        }

        public ICodexSetup WithStorageQuota(ByteSize storageQuota)
        {
            StorageQuota = storageQuota;
            return this;
        }

        public ICodexSetup EnableMetrics()
        {
            MetricsEnabled = true;
            return this;
        }

        public ICodexSetup EnableMarketplace(TestToken initialBalance)
        {
            return EnableMarketplace(initialBalance, 1000.Eth());
        }

        public ICodexSetup EnableMarketplace(TestToken initialBalance, Ether initialEther)
        {
            MarketplaceConfig = new MarketplaceInitialConfig(initialEther, initialBalance);
            return this;
        }

        public string Describe()
        {
            var args = string.Join(',', DescribeArgs());
            return $"({NumberOfNodes} CodexNodes with args:[{args}])";
        }

        private IEnumerable<string> DescribeArgs()
        {
            if (LogLevel != null) yield return $"LogLevel={LogLevel}";
            if (BootstrapNode != null) yield return $"BootstrapNode={BootstrapNode.GetName()}";
            if (StorageQuota != null) yield return $"StorageQuote={StorageQuota}";
        }
    }
}