<?php

if (!defined('_PS_VERSION_')) {
    exit;
}

class EcomZone extends Module
{
    private $errors = [];
    private $api;
    
    public function __construct()
    {
        $this->name = 'ecomzone';
        $this->tab = 'market_place';
        $this->version = '1.0.0';
        $this->author = 'Your Name';
        $this->need_instance = 0;
        $this->bootstrap = true;
        $this->ps_versions_compliancy = [
            'min' => '1.7.0.0',
            'max' => _PS_VERSION_
        ];

        parent::__construct();

        $this->displayName = $this->l('EcomZone Integration');
        $this->description = $this->l('Integrates PrestaShop with EcomZone Dropshipping API');
        
        // Initialize API
        require_once(dirname(__FILE__) . '/classes/EcomZoneAPI.php');
        $this->api = new EcomZoneAPI();
    }

    public function install()
    {
        if (!parent::install()) {
            $this->errors[] = $this->l('Could not install the module');
            return false;
        }

        if (!$this->registerHook('actionProductUpdate')) {
            $this->errors[] = $this->l('Could not register hooks');
            return false;
        }

        // Set default API key from your working configuration
        if (!Configuration::updateValue('ECOMZONE_API_KEY', 'klRyAdrXaxL0s6PEUp7LDlH6T8aPSCtBY8NiEHsHiWpc6646K2TZPi5KMxUg') ||
            !Configuration::updateValue('ECOMZONE_API_URL', 'https://dropship.ecomzone.eu/api')) {
            $this->errors[] = $this->l('Could not set default configuration');
            return false;
        }

        return true;
    }

    public function getContent()
    {
        $output = '';
        $debugOutput = '';
        
        if (Tools::isSubmit('submitEcomZone')) {
            $apiKey = trim(Tools::getValue('ECOMZONE_API_KEY'));
            
            if (!$apiKey) {
                $output .= $this->displayError($this->l('API Key is required'));
            } else {
                Configuration::updateValue('ECOMZONE_API_KEY', $apiKey);
                $debugOutput .= "API Key saved: " . substr($apiKey, 0, 10) . "...\n";
                $output .= $this->displayConfirmation($this->l('Settings updated'));
            }
        }
        
        // Handle manual fetch
        if (Tools::isSubmit('fetchProducts')) {
            try {
                $debugOutput .= "Starting product fetch...\n";
                
                // Get all products
                $catalog = $this->api->getCatalog(1000);
                
                if (isset($catalog['data']) && is_array($catalog['data'])) {
                    $debugOutput .= sprintf("Fetching all products...\n");
                    $totalProducts = count($catalog['data']);
                    
                    // Show first 5 products as preview
                    for ($i = 0; $i < min(5, $totalProducts); $i++) {
                        $product = $catalog['data'][$i];
                        $debugOutput .= sprintf(
                            "Product %d/%d: %s - %s (Price: %s EUR, Stock: %s)\n",
                            $i + 1,
                            $totalProducts,
                            $product['sku'],
                            $product['product_name'],
                            $product['product_price'],
                            $product['stock']
                        );
                    }
                    
                    if ($totalProducts > 5) {
                        $debugOutput .= "...\n"; // Indicate there are more products
                    }
                    
                    $debugOutput .= sprintf("\nTotal products fetched: %d\n", $totalProducts);
                } else {
                    $debugOutput .= "No products found or invalid response format\n";
                }
                
                $output .= $this->displayConfirmation($this->l('Products fetched successfully'));
                
            } catch (Exception $e) {
                $debugOutput .= "Error: " . $e->getMessage() . "\n";
                $output .= $this->displayError($this->l('Error fetching products'));
            }
        }
        
        // Store debug output in smarty variable
        $this->context->smarty->assign('debug_output', $debugOutput);
        
        return $output . $this->displayForm();
    }

    public function displayForm()
    {
        $fields_form[0]['form'] = [
            'legend' => [
                'title' => $this->l('Settings'),
            ],
            'input' => [
                [
                    'type' => 'text',
                    'label' => $this->l('API Key'),
                    'name' => 'ECOMZONE_API_KEY',
                    'required' => true,
                    'size' => 50
                ],
            ],
            'buttons' => [
                [
                    'type' => 'submit',
                    'title' => $this->l('Fetch Products'),
                    'icon' => 'process-icon-download',
                    'name' => 'fetchProducts',
                    'class' => 'btn btn-primary pull-left'
                ]
            ],
            'submit' => [
                'title' => $this->l('Save'),
                'class' => 'btn btn-default pull-right'
            ]
        ];

        $helper = new HelperForm();
        $helper->module = $this;
        $helper->name_controller = $this->name;
        $helper->token = Tools::getAdminTokenLite('AdminModules');
        $helper->currentIndex = AdminController::$currentIndex . '&configure=' . $this->name;
        $helper->default_form_language = Configuration::get('PS_LANG_DEFAULT');
        $helper->fields_value['ECOMZONE_API_KEY'] = Configuration::get('ECOMZONE_API_KEY');
        
        // Add debug console after form
        $form = $helper->generateForm($fields_form);
        $debug_console = '<div class="panel">
            <div class="panel-heading">
                <i class="icon-list"></i> ' . $this->l('Debug Console') . '
            </div>
            <div class="panel-content">
                <pre id="debug-console" style="max-height: 300px; overflow-y: auto; background: #f5f5f5; padding: 10px;">
                    ' . $this->context->smarty->getTemplateVars('debug_output') . '
                </pre>
            </div>
        </div>';
        
        return $form . $debug_console;
    }

    public function getErrors()
    {
        return $this->errors;
    }

    public function hookActionProductUpdate($params)
    {
        try {
            $product = $params['product'];
            $productId = $product->id;
            
            // Get product reference (SKU)
            $reference = $product->reference;
            
            if (!empty($reference)) {
                // Get product data from EcomZone
                $ecomZoneProduct = $this->api->getProduct($reference);
                
                if ($ecomZoneProduct && isset($ecomZoneProduct['data'])) {
                    // Update stock
                    if (isset($ecomZoneProduct['data']['stock'])) {
                        StockAvailable::setQuantity($productId, 0, (int)$ecomZoneProduct['data']['stock']);
                    }
                    
                    // Update price
                    if (isset($ecomZoneProduct['data']['product_price'])) {
                        $product->price = (float)$ecomZoneProduct['data']['product_price'];
                        $product->update();
                    }
                    
                    PrestaShopLogger::addLog(
                        sprintf('EcomZone: Updated product %s (ID: %d)', $reference, $productId),
                        1, // Notice level
                        null,
                        'Product',
                        $productId,
                        true
                    );
                }
            }
        } catch (Exception $e) {
            PrestaShopLogger::addLog(
                sprintf('EcomZone: Error updating product %d: %s', $productId, $e->getMessage()),
                3, // Error level
                null,
                'Product',
                $productId,
                true
            );
        }
    }
}