<?php

session_start();
include("includes/config.php");

if (isset($_POST['add_trader'])) {
    $trader_name = mysqli_real_escape_string($conn, $_POST['trader_name'] ?? ''); 
    $description = mysqli_real_escape_string($conn, $_POST['description'] ?? ''); 

    $photo = $_FILES['photo']['name'] ?? null; // Check if file exists
    $allowed_image_extensions = array('gif', 'png', 'jpg', 'jpeg', 'webp', 'WEBP');

    if ($photo) {
        $photo_file_extension = pathinfo($photo, PATHINFO_EXTENSION);

        if (!in_array($photo_file_extension, $allowed_image_extensions)) {
            $_SESSION['status'] = "The image file is not allowed. Please upload an image.";
            header('Location: trader.php');
            exit;
        }

        move_uploaded_file($_FILES["photo"]["tmp_name"], "trader/" . $photo);
    }

    // Prepare SQL query
    if ($photo) {
        $query = "INSERT INTO traders (trader_name, description, photo) VALUES ('$trader_name', '$description', '$photo')";
    } else {
        $query = "INSERT INTO traders (trader_name, description) VALUES ('$trader_name', '$description')";
    }

    $query_run = mysqli_query($conn, $query);

    if ($query_run) {
        $_SESSION['status'] = "Uploaded Successfully";
        echo "<script>window.location.href='view-trader.php';</script>";
        exit;
    } else {
        $_SESSION['status'] = "Not Uploaded";
        echo "<script>window.location.href='view-trader.php';</script>";
        exit;
    }
}




// update 

if(isset($_POST['update_trader'])){
    $id = $_POST['id'];
    $trader_name = $_POST['trader_name'];
    $description = $_POST['description'];


    $old_photo = $_POST['image_old'];
    $update_photo_filename = $_FILES["photo"]["name"] ? $_FILES["photo"]["name"] : $old_photo;

    $query = "UPDATE traders SET trader_name='$trader_name', description='$description', photo='$update_photo_filename' WHERE id ='$id' ";

    $query_run = mysqli_query($conn, $query);

    if($query_run){
      
        if($_FILES["photo"]["name"] !='' && $_FILES["photo"]["name"] != $old_photo){
            move_uploaded_file($_FILES["photo"]["tmp_name"], "trader/".$_FILES["photo"]["name"]);
            unlink("trader/". $old_photo);    
        }

     

        $_SESSION['status'] = "Updated Successfully";
          echo "<script>window.location.href='view-trader.php';</script>";
  
        // header('Location: view-category.php');
    } else {
        $_SESSION['status'] = "Not Updated ";
                           echo "<script>window.location.href='view-trader.php';</script>";

        // header('Location: view-category.php');
    }
}


// delete
if(isset($_POST['delete_trader'])){
    $id = $_POST['delete_id'];
    $photo = $_POST['del_trader'];

    $query = "DELETE FROM traders WHERE id = '$id'";
    $query_run = mysqli_query($conn, $query);

    if($query_run){
        $_SESSION['status'] = "Deleted Successfully";
                           echo "<script>window.location.href='view-trader.php';</script>";

        // header('Location: view-category.php');
    } else {
        $_SESSION['status'] = "Not Deleted Successfully";
                           echo "<script>window.location.href='view-trader.php';</script>";

        // header('Location: view-category.php');
    }
}