Deepen Apizr registration generator with adapter isolation and pipeline tests

src/Refitter.Core/ApizrOptionsBuilder.cs

@@ -0,0 +1,73 @@
+using System.Text;
+using Refitter.Core.Settings;
+
+namespace Refitter.Core;
+
+internal class ApizrOptionsBuilder : IApizrOptionsBuilder
+{
+    private readonly StringBuilder _optionsCode;
+    private readonly StringBuilder _usingsCode;
+    private readonly List<ApizrPackages> _packages = new();
+    private bool _hasOptions;
+
+    public ApizrOptionsBuilder(string initialOptionsCode, string initialUsings)
+    {
+        _optionsCode = new StringBuilder(initialOptionsCode);
+        _usingsCode = new StringBuilder(initialUsings);
+        _usingsCode.AppendLine();
+    }
+
+    public bool HasOptions => _hasOptions;
+
+    public void WithBaseAddress(string baseUrl, string duplicateStrategy)
+    {
+        _optionsCode.AppendLine();
+        _optionsCode.Append($"                .WithBaseAddress(\"{baseUrl}\", {duplicateStrategy})");
+        _hasOptions = true;
+    }
+
+    public void WithDelegatingHandler(string handlerType)
+    {
+        _optionsCode.AppendLine();
+        _optionsCode.Append($"                .WithDelegatingHandler<{handlerType}>()");
+        _hasOptions = true;
+    }
+
+    public void ConfigureHttpClientBuilder(Action<StringBuilder> configure)
+    {
+        _optionsCode.AppendLine();
+        configure(_optionsCode);
+        _hasOptions = true;
+    }
+
+    public void AppendOptionsCode(string code)
+    {
+        _optionsCode.Append(code);
+        _hasOptions = true;
+    }
+
+    public void AddPackage(ApizrPackages package)
+    {
+        _packages.Add(package);
+    }
+
+    public void AddUsing(string usingDirective)
+    {
+        _usingsCode.Append("    ");
+        _usingsCode.AppendLine(usingDirective);
+    }
+
+    public string BuildOptionsCode()
+    {
+        if (_hasOptions)
+            _optionsCode.Append(";");
+        else
+            _optionsCode.Clear();
+
+        return _optionsCode.ToString();
+    }
+
+    public string GetUsings() => _usingsCode.ToString();
+
+    public List<ApizrPackages> GetPackages() => _packages;
+}