using CodexPlugin;
using NUnit.Framework;
using Utils;

namespace CodexTests.BasicTests
{
    [TestFixture]
    public class LogHelperTests : CodexDistTest
    {
        [Test]
        public void FindMostCommonLogMessages()
        {
            var node = AddCodex(s => s.WithLogLevel(CodexLogLevel.Trace));


            node.UploadFile(GenerateTestFile(1.GB()));


            var map = GetLogMap(node).OrderByDescending(p => p.Value);
            foreach (var entry in map)
            {
                Log($"'{entry.Key}' = {entry.Value}");
            }
        }

        private Dictionary<string, int> GetLogMap(ICodexNode node)
        {
            var log = Ci.DownloadLog(node);
            var map = new Dictionary<string, int>();
            log.IterateLines(line =>
            {
                if (string.IsNullOrEmpty(line) ||
                    !line.Contains(" ") ||
                    !line.Contains("=") ||
                    line.Length < 34 ||
                    line[33] != ' '
                ) return;
                
                // "INF 2024-04-14 10:40:50.042+00:00 Creating a private key and saving it       tid=1 count=2"
                var start = 34;
                var msg = line.Substring(start);

                // "Creating a private key and saving it       tid=1 count=2"
                var firstEqualSign = msg.IndexOf("=");
                msg = msg.Substring(0, firstEqualSign);

                // "Creating a private key and saving it       tid"
                var lastSpace = msg.LastIndexOf(" ");
                msg = msg.Substring(0, lastSpace);

                // "Creating a private key and saving it       "
                msg = msg.Trim();

                // "Creating a private key and saving it"
                if (map.ContainsKey(msg)) map[msg] += 1;
                else map.Add(msg, 1);
            });
            return map;
        }
    }
}