Development of a Product Synchronization Plugin for Tec.Delivery

            
$tecApiUrl = "https://api.tec.delivery/common/merchant/1.0/";
$limit = 100;

$settings = [
    "tec_token" => "YOUR_TEC_TOKEN",

    "api_url" => "https://example.com/api/",
    "method_get_product" => "products",
    "method_get_balance" => "balance",

    "webhook" => "https://example.com/webhook",

    "auth" => false, // "login:password"

    "language" => "EN",
    "translate" => true,
];

echo "Start sync\n";

$put = [];

$put = array_merge($put, sync_categories($settings));
$put = array_merge($put, sync_products($settings));

put_products($settings, $put);

echo "Done\n";


function sync_categories(array $settings): array
{
    $tecCat = get_products_tec([
        "api" => "product",
        "method" => "get-categories",
        "fields" => [
            "product_id",
            "name",
            "external_id",
            "enable",
            "external_parent_id",
            "external_key"
        ],
        "filter" => [
            "enable" => ["eq" => true]
        ]
    ], $settings);

    foreach ($tecCat as $key => $cat) {
        $tecCat[$key]["exist"] = false;
    }

    $storeCat = get_products_store([
        "type" => "category"
    ], $settings);

    $put = [];

    foreach ($storeCat as $cat) {
        if (empty($cat["id"])) {
            continue;
        }

        $index = findIndexByField($tecCat, "external_id", $cat["id"]);

        if ($index !== false) {
            $tecCat[$index]["exist"] = true;

            if (($tecCat[$index]["external_key"] ?? null) === ($cat["modified_at"] ?? null)) {
                continue;
            }
        }

        $put[] = [
            "external_id" => $cat["id"],
            "external_parent_id" => $cat["parent"] ?? 0,
            "name" => $cat["name"],
            "external_key" => $cat["modified_at"] ?? null,
            "is_category" => true,
            "enable" => true,
        ];
    }

    foreach ($tecCat as $cat) {
        if ($cat["exist"] === false) {
            $put[] = [
                "product_id" => $cat["product_id"],
                "enable" => false,
            ];
        }
    }

    return $put;
}


function sync_products(array $settings): array
{
    $tecProducts = get_products_tec([
        "api" => "product",
        "method" => "get-all",
        "fields" => [
            "product_id",
            "name",
            "external_id",
            "external_key",
            "external_data",
            "enable"
        ],
        "filter" => [
            "enable" => ["eq" => true],
            "is_category" => ["eq" => false]
        ]
    ], $settings);

    foreach ($tecProducts as $key => $product) {
        $tecProducts[$key]["exist"] = false;
    }

    $storeProducts = get_products_store([
        "type" => "product"
    ], $settings);

    $put = [];

    foreach ($storeProducts as $product) {
        if (empty($product["id"])) {
            continue;
        }

        $index = findIndexByField($tecProducts, "external_id", $product["id"]);

        if ($index === false) {
            $put[] = prepare_product($product, true);
            continue;
        }

        $tecProducts[$index]["exist"] = true;

        $changed =
            ($tecProducts[$index]["external_key"] ?? null) !== ($product["modified_at"] ?? null);

        $imageChanged =
            ($tecProducts[$index]["external_data"] ?? null) !== ($product["image_modified_at"] ?? null);

        if ($changed || $imageChanged) {
            $put[] = prepare_product($product, $imageChanged);
        }
    }

    foreach ($tecProducts as $product) {
        if ($product["exist"] === false) {
            $put[] = [
                "product_id" => $product["product_id"],
                "enable" => false,
                "store_balance" => 0,
            ];
        }
    }

    return $put;
}


function prepare_product(array $product, bool $withImage = false): array
{
    $item = [
        "external_id" => $product["id"],
        "external_parent_id" => $product["parent"] ?? 0,
        "external_key" => $product["modified_at"] ?? null,
        "external_data" => $product["image_modified_at"] ?? null,
        "name" => $product["name"] ?? "",
        "description" => $product["description"] ?? "",
        "price" => isset($product["price"]) ? (float)$product["price"] : 0,
        "store_balance" => isset($product["store_balance"]) ? (int)$product["store_balance"] : 0,
        "enable" => true,
        "is_category" => false,
    ];

    if ($withImage && !empty($product["image_url"])) {
        $item["image"] = [
            "url" => $product["image_url"],
            "resize" => false,
            "bgcolor" => "#FFFFFF",
            "scale" => 0.8,
            "remove_background" => false,
            "hash" => [
                "field" => "external_data",
                "value" => $product["image_modified_at"] ?? ""
            ]
        ];
    }

    return $item;
}


function put_products(array $settings, array $data): void
{
    global $tecApiUrl, $limit;

    if (empty($data)) {
        echo "Nothing to update\n";
        return;
    }

    $chunks = array_chunk($data, $limit);
    $total = count($chunks);

    foreach ($chunks as $index => $chunk) {
        echo "Put products: " . ($index + 1) . " / {$total}\n";

        $request = [
            "api" => "product",
            "method" => "put-products",
            "token" => $settings["tec_token"],
            "webhook" => $settings["webhook"],
            "language" => $settings["language"] ?? "EN",
            "translate" => $settings["translate"] ?? true,
            "payload" => $chunk
        ];

        get_curl_response($tecApiUrl, $request);
    }
}


function get_products_tec(array $request, array $settings): array
{
    global $tecApiUrl, $limit;

    $offset = 0;
    $result = [];

    while ($offset !== false) {
        echo "Get Tec products offset: {$offset}\n";

        $url = $tecApiUrl . "?token={$settings["tec_token"]}&limit={$limit}&offset={$offset}";
        $response = get_curl_response($url, $request);

        $data = $response["payload"]["data"] ?? [];
        $offset = $response["payload"]["offset"] ?? false;

        if (!is_array($data)) {
            throw new Exception("Invalid Tec API response");
        }

        $result = array_merge($result, $data);
    }

    return $result;
}


function get_products_store(array $params, array $settings, string $method = "method_get_product"): array
{
    global $limit;

    $offset = 0;
    $count = 1;
    $result = [];

    $query = http_build_query($params);

    while ($offset < $count) {
        echo "Get store products offset: {$offset}\n";

        $url = $settings["api_url"]
            . $settings[$method]
            . "?limit={$limit}&offset={$offset}";

        if ($query !== "") {
            $url .= "&" . $query;
        }

        $response = get_curl_response($url, false, $settings["auth"] ?? false);

        $count = (int)($response["count"] ?? 0);
        $data = $response["data"] ?? [];

        if (!is_array($data)) {
            throw new Exception("Invalid store API response");
        }

        $result = array_merge($result, $data);
        $offset += $limit;
    }

    return $result;
}


function get_curl_response(string $url, array|false $raw = false, string|false $basicAuth = false): array
{
    $ch = curl_init($url);

    $headers = [
        "Accept: application/json;charset=utf-8",
        "Accept-Encoding: gzip, deflate"
    ];

    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
    curl_setopt($ch, CURLOPT_ENCODING, "");

    if ($raw !== false) {
        $json = json_encode($raw, JSON_UNESCAPED_UNICODE);

        curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");
        curl_setopt($ch, CURLOPT_POSTFIELDS, $json);

        $headers[] = "Content-Type: application/json";
        $headers[] = "Content-Length: " . strlen($json);
    }

    if ($basicAuth) {
        curl_setopt($ch, CURLOPT_USERPWD, $basicAuth);
    }

    curl_setopt_array($ch, [
        CURLOPT_HTTPHEADER => $headers,
        CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
        CURLOPT_SSLVERSION => CURL_SSLVERSION_TLSv1_2,
        CURLOPT_SSL_VERIFYPEER => true,
        CURLOPT_SSL_VERIFYHOST => 2,
        CURLOPT_CONNECTTIMEOUT => 60,
        CURLOPT_TIMEOUT => 60,
    ]);

    $response = curl_exec($ch);
    $http = (int)curl_getinfo($ch, CURLINFO_HTTP_CODE);

    if ($response === false) {
        $error = curl_error($ch);
        curl_close($ch);
        throw new Exception("cURL error: {$error}");
    }

    curl_close($ch);

    if ($http < 200 || $http >= 300) {
        throw new Exception("HTTP error {$http}: {$response}");
    }

    $decoded = json_decode($response, true);

    if (!is_array($decoded)) {
        throw new Exception("Invalid JSON response: {$response}");
    }

    return $decoded;
}


function findIndexByField(array $array, string $field, mixed $value): int|false
{
    foreach ($array as $index => $item) {
        if (isset($item[$field]) && $item[$field] == $value) {
            return $index;
        }
    }

    return false;
}