#!/usr/bin/env swift

import Foundation
import Metal

print("=== Test: Create Engine and Compile Metal ===")
print("Start time: \(Date())")
fflush(stdout)

do {
    // Create Metal device
    guard let device = MTLCreateSystemDefaultDevice() else {
        print("ERROR: Cannot create Metal device")
        exit(1)
    }
    print("Metal device: \(device.name)")
    fflush(stdout)
    
    // Create command queue
    guard let commandQueue = device.makeCommandQueue() else {
        print("ERROR: Cannot create command queue")
        exit(1)
    }
    print("Command queue created")
    fflush(stdout)
    
    // Try to compile Metal source (simple version)
    let source = """
    #include <metal_stdlib>
    using namespace metal;
    
    kernel void test_kernel(device float* output [[buffer(0)]],
                           uint id [[thread_position_in_grid]]) {
        output[id] = float(id);
    }
    """
    
    print("Compiling Metal source...")
    fflush(stdout)
    
    let compileStart = Date()
    let library = try device.makeLibrary(source: source, options: nil)
    print("Metal compiled in \(Date().timeIntervalSince(compileStart))s")
    fflush(stdout)
    
    print("Test completed successfully!")
    
} catch {
    print("ERROR: \(error)")
    exit(1)
}