2019-12-15 04:33:48 +00:00
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Net;
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using System.Text;
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using System.Threading;
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using System.Threading.Tasks;
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using Alphaleonis.Win32.Filesystem;
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using Nancy;
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2019-12-16 02:24:05 +00:00
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using ReactiveUI;
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2019-12-15 04:33:48 +00:00
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using Wabbajack.Common;
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namespace Wabbajack.CacheServer
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{
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/// <summary>
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/// Extremely
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/// </summary>
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public class Metrics : NancyModule
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{
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private static SemaphoreSlim _lockObject = new SemaphoreSlim(1);
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public static async Task Log(params object[] args)
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{
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var msg = new[] {string.Join("\t", args.Select(a => a.ToString()))};
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Utils.Log(msg.First());
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await _lockObject.WaitAsync();
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try
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{
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File.AppendAllLines("stats.tsv", msg);
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}
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finally
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{
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_lockObject.Release();
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}
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}
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public Metrics() : base("/")
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{
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Get("/metrics/{Action}/{Value}", HandleMetrics);
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2019-12-16 02:24:05 +00:00
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Get("/metrics/chart/", HandleChart);
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Get("/metrics/chart/{Action}/", HandleChart);
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Get("/metrics/chart/{Action}/{Value}/", HandleChart);
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2019-12-15 04:33:48 +00:00
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}
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private async Task<string> HandleMetrics(dynamic arg)
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{
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var date = DateTime.UtcNow;
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await Log(date, arg.Action, arg.Value);
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return date.ToString();
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}
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2019-12-16 02:24:05 +00:00
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private static async Task<string[]> GetData()
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{
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await _lockObject.WaitAsync();
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try
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{
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return File.ReadAllLines("stats.tsv");
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}
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finally
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{
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_lockObject.Release();
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}
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}
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private async Task<Response> HandleChart(dynamic arg)
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{
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var data = (await GetData()).Select(line => line.Split('\t'))
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.Where(line => line.Length == 3)
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.Select(line => new {date = DateTime.Parse(line[0]), Action = line[1], Value = line[2]});
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// Remove guids / Default, which come from testing
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data = data.Where(d => !Guid.TryParse(d.Value ?? "", out _) && (d.Value ?? "") != "Default");
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if (arg?.Action != null)
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data = data.Where(d => d.Action == arg.Action);
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if (arg?.Value != null)
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data = data.Where(d => d.Value.StartsWith(arg.Value));
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var grouped_and_counted = data.GroupBy(d => d.date.ToString("yyyy-MM-dd"))
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.OrderBy(d => d.Key)
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.Select(d => new {Day = d.Key, Count = d.Count()})
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.ToList();
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var sb = new StringBuilder();
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sb.Append("<html><head><script src=\"https://cdn.jsdelivr.net/npm/chart.js@2.8.0\"></script></head>");
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sb.Append("<body><canvas id=\"myChart\"></canvas>");
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sb.Append("<script language='javascript'>");
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var script = @"var ctx = document.getElementById('myChart').getContext('2d');
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var chart = new Chart(ctx, {
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// The type of chart we want to create
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type: 'line',
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// The data for our dataset
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data: {
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labels: [{{LABELS}}],
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datasets: [{
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label: '{{DATASET}}',
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backgroundColor: 'rgb(255, 99, 132)',
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borderColor: 'rgb(255, 99, 132)',
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data: [{{DATA}}]
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}]
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},
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// Configuration options go here
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options: {}
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});";
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sb.Append(script.Replace("{{LABELS}}", string.Join(",", grouped_and_counted.Select(e => "'"+e.Day+"'")))
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.Replace("{{DATA}}", string.Join(",", grouped_and_counted.Select(e => e.Count.ToString())))
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.Replace("{{DATASET}}", (arg.Action ?? "*") + " - " + (arg.Value ?? "*")));
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sb.Append("</script>");
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sb.Append("</body></html>");
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var response = (Response)sb.ToString();
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response.ContentType = "text/html";
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return response;
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}
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2019-12-15 04:33:48 +00:00
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}
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}
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