using System;
using System.IO;
using Numpy;

namespace CustomInstallLocationExample
{
 class Program
 {
 static void Main(string[] args)
 {
 // ================================================
 // This example demonstrates how to install Python and Numpy from the assembly's resources
 // (build action 'Embedded resource') into a custom location (here the local execution directory ".")
 // and then use Numpy.Bare with that installation.
 // ================================================

 // set the installation source to be the embedded python zip from our resources
 Python.Deployment.Installer.Source = new Python.Deployment.Installer.EmbeddedResourceInstallationSource()
 {
 Assembly = typeof(Program).Assembly,
 ResourceName = "python-3.7.3-embed-amd64.zip",
 };

 // install in local directory. if you don't set it will install in local app data of your user account
 Python.Deployment.Installer.InstallPath = Path.GetFullPath(".");

 // see what the installer is doing
 Python.Deployment.Installer.LogMessage += Console.WriteLine;

 // install from the given source
 Python.Deployment.Installer.SetupPython(force: false).Wait();

 Python.Deployment.Installer.InstallWheel(typeof(Program).Assembly,
 "numpy-1.16.3-cp37-cp37m-win_amd64.whl").Wait();

 // if the installation is local, you don't even need to set the path
 //Environment.SetEnvironmentVariable("PATH", Path.GetFullPath(@"./python-3.7.3-embed-amd64"), EnvironmentVariableTarget.Process);

 // Now use Numpy.Bare
 var a = np.arange(10);
 Console.WriteLine("a: "+ a.repr);
 var b = np.arange(10)["::-1"];
 Console.WriteLine("b: " + b.repr);
 var a_x_b = np.matmul(a, b);
 Console.WriteLine("a x b: " + a_x_b.repr);
 }
 }
}