<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use Illuminate\Support\Facades\Log;
use Symfony\Component\Process\Exception\ProcessFailedException;
use Symfony\Component\Process\Process;

class PrintController extends Controller
{
    public function printImage(Request $request)
    {
        $request->validate([
            'image_path' => 'required|string',
            'quantity' => 'required|integer|min:1',
        ]);

        $imagePath = public_path(str_replace(url('/'), '', $request->input('image_path')));
        $quantity = $request->input('quantity');

        if (!file_exists($imagePath)) {
            Log::error("PrintController: Image file not found at {$imagePath}");
            return response()->json(['error' => 'Image file not found.'], 404);
        }

        // IMPORTANT: Replace this command with one that works in your environment.
        // Examples:
        // Linux/macOS: $command = ['lpr', '-#', $quantity, $imagePath];
        // Windows (assuming a shared printer named 'MyNetworkPrinter'):
        // $command = ['print', '/d:\\MyNetworkPrinter', $imagePath];
        // You might need to install additional software or configure your system
        // to enable command-line printing.
        // For a more robust solution, consider a dedicated print server application
        // or a commercial print API.
        $command = ['echo', "Simulating print of {$quantity} copies of {$imagePath}"]; // Placeholder

        try {
            $process = new Process($command);
            $process->run();

            if (!$process->isSuccessful()) {
                throw new ProcessFailedException($process);
            }

            Log::info("PrintController: Successfully sent print command for {$imagePath} (x{$quantity})");
            return response()->json(['message' => 'Print command sent successfully.']);
        } catch (ProcessFailedException $exception) {
            Log::error("PrintController: Print command failed. Error: " . $exception->getMessage());
            return response()->json(['error' => 'Failed to send print command.', 'details' => $exception->getMessage()], 500);
        }
    }
}