using System;
using System.Collections.Generic;
using System.Reflection;
using System.Text;

using BenchmarkDotNet.Attributes;
using Python.Runtime;

namespace Python.PerformanceTests
{
 [Config(typeof(BaselineComparisonConfig))]
 public class PythonCallingNetBenchmark: BaselineComparisonBenchmarkBase
 {
 [Benchmark]
 public void ReadInt64Property()
 {
 using (Py.GIL())
 {
 var locals = new PyDict();
 locals.SetItem("a", new NetObject().ToPython());
 Exec($@"
s = 0
for i in range(50000):
 s += a.{nameof(NetObject.LongProperty)}
", locals: locals);
 }
 }

 [Benchmark]
 public void WriteInt64Property() {
 using (Py.GIL()) {
 var locals = new PyDict();
 locals.SetItem("a", new NetObject().ToPython());
 Exec($@"
s = 0
for i in range(50000):
 a.{nameof(NetObject.LongProperty)} += i
", locals: locals);
 }
 }

 static void Exec(string code, PyDict locals)
 {
 MethodInfo exec = typeof(PythonEngine).GetMethod(nameof(PythonEngine.Exec));
 object localsArg = typeof(PyObject).Assembly.GetName().Version.Major >= 3
 ? locals : locals.Handle;
 exec.Invoke(null, new[]
 {
 code, localsArg, null
 });
 }
 }

 class NetObject
 {
 public long LongProperty { get; set; } = 42;
 }
}