Working first pass. Downloads all files with generic filename. Does not parse title. Does not write metadata.

MyArgs.cs

@@ -0,0 +1,14 @@
+using PowerArgs;
+
+namespace SBT_Downloader
+{
+    [TabCompletion]
+    public class MyArgs
+    {
+        // This argument is required and if not specified the user 
+        // will be prompted. It has the short '-h', but tab completion
+        // Is support
+        [ArgRequired(PromptIfMissing = true), ArgShortcut("-h")]
+        public string Har { get; set; }
+    }
+}

Program.cs

@@ -0,0 +1,77 @@
+using PowerArgs;
+using Newtonsoft.Json.Linq;
+using System.Net;
+
+namespace SBT_Downloader
+{
+    internal class Program
+    {
+        static void Main(string[] args)
+        {
+            Console.WriteLine("Welcome to the Sound Booth Theater Personal Archiving Tool!");
+            try
+            {
+                var parsed = Args.Parse<MyArgs>(args);
+                Console.WriteLine("Downloading book now...");
+                DownloadBook(parsed.Har);
+            }
+            catch (ArgException ex)
+            {
+                Console.WriteLine(ex.Message);
+                Console.WriteLine(ArgUsage.GenerateUsageFromTemplate<MyArgs>());
+            }
+        }
+
+        static void DownloadBook(string fileName)
+        {
+            string harContents = LoadHar(fileName);
+            JObject harObject = JObject.Parse(harContents);
+            List<string> mp3Urls = ParseUrls(harObject);
+            _ = DownloadMp3sAsync(mp3Urls);
+        }
+
+        private static async Task DownloadMp3sAsync(List<string> mp3Urls)
+        {
+            int fileNumber = 1;
+            foreach (string url in mp3Urls)
+            {
+                using var client = new WebClient();
+                client.DownloadFile(url, "file" + fileNumber + ".mp3");
+                Console.WriteLine("Downloading  file #" +  fileNumber);
+                fileNumber++;
+            }
+        }
+
+        static string LoadHar(string harFileName)
+        {
+            string harContents;
+            try
+            {
+                using StreamReader streamReader = new(harFileName);
+                harContents = streamReader.ReadToEnd();
+                return harContents;
+            }
+            catch (Exception e)
+            {
+                Console.WriteLine("The file could not be read:");
+                Console.WriteLine(e.Message);
+                Environment.Exit(0);
+                return string.Empty;
+            }
+        }
+
+        static List<string> ParseUrls(JObject harObject)
+        {
+            List<string> urls = harObject["log"]["entries"]
+                .Where(x => x.SelectToken("_resourceType").ToString() == "media")
+                .Select(y => y.SelectToken("request"))
+                .DistinctBy(z => z.SelectToken("url"))
+                .Select(x => x.SelectToken("url").ToString()).ToList();
+
+            Console.WriteLine(urls.Count + " total requests");
+
+            return urls;
+        }
+
+    }
+}

Properties/launchSettings.json

@@ -0,0 +1,8 @@
+{
+  "profiles": {
+    "SBT Downloader": {
+      "commandName": "Project",
+      "commandLineArgs": "-har \"C:\\Repos\\sbt-downloader\\soundbooththeater.com.har\""
+    }
+  }
+}

SBT Downloader.csproj

@@ -0,0 +1,16 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net6.0</TargetFramework>
+    <RootNamespace>SBT_Downloader</RootNamespace>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
+    <PackageReference Include="PowerArgs" Version="4.0.3" />
+  </ItemGroup>
+
+</Project>

SBT Downloader.sln

@@ -0,0 +1,25 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.0.32014.148
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "SBT Downloader", "SBT Downloader.csproj", "{F4898EE2-CBCD-4301-B5ED-9D73BB1F4425}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{F4898EE2-CBCD-4301-B5ED-9D73BB1F4425}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{F4898EE2-CBCD-4301-B5ED-9D73BB1F4425}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{F4898EE2-CBCD-4301-B5ED-9D73BB1F4425}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{F4898EE2-CBCD-4301-B5ED-9D73BB1F4425}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ExtensibilityGlobals) = postSolution
+		SolutionGuid = {3EE4D311-5E9A-4BBD-804B-C8D508703F30}
+	EndGlobalSection
+EndGlobal

SbtHar.cs

@@ -0,0 +1,12 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace SBT_Downloader
+{
+    internal class SbtHar
+    {
+    }
+}