<?php
/**
 * Upload DOCX template to S3 and save metadata in vtiger_oot_templates.
 */

class OnlyOfficeTemplates_UploadTemplate_Action extends Vtiger_Action_Controller
{
    public function checkPermission(Vtiger_Request $request)
    {
        if (!isPermitted('Settings', 'Edit', '')) {
            throw new AppException('LBL_PERMISSION_DENIED');
        }
    }

    public function process(Vtiger_Request $request)
    {
        $name = $request->get('name') ?: $request->get('template_name');
        $module = $request->get('module_name');
        $file = $_FILES['file'] ?? $_FILES['template_file'] ?? null;

        $redirect = $request->get('redirect');
        $doRedirect = ($redirect === 'List');

        if (!$name || !$module || !$file || empty($file['tmp_name']) || $file['error'] !== UPLOAD_ERR_OK) {
            if ($doRedirect) {
                header('Location: index.php?module=OnlyOfficeTemplates&view=AddTemplate&app=TOOLS&error=' . urlencode('Укажите название, модуль и выберите файл DOCX'));
                return;
            }
            echo json_encode(['success' => false, 'error' => 'Missing name, module_name, or valid file upload']);
            return;
        }

        $ext = strtolower(pathinfo($file['name'], PATHINFO_EXTENSION));
        if ($ext !== 'docx') {
            if ($doRedirect) {
                header('Location: index.php?module=OnlyOfficeTemplates&view=AddTemplate&app=TOOLS&error=' . urlencode('Допускаются только файлы DOCX'));
                return;
            }
            echo json_encode(['success' => false, 'error' => 'Only DOCX files are allowed']);
            return;
        }

        require_once dirname(__DIR__) . '/models/OnlyOfficeTemplates_Model.php';
        require_once dirname(__DIR__) . '/resources/S3Helper.php';

        $model = new OnlyOfficeTemplates_Model();
        $config = $model->getConfig();
        $s3 = new OnlyOfficeTemplates_S3Helper($config);

        $owner = Users_Record_Model::getCurrentUserModel()->getId();
        $adb = PearDatabase::getInstance();
        $adb->pquery("INSERT INTO vtiger_oot_templates (name, module, s3_key, file_name, owner, created_at) VALUES ('_pending', ?, '', '', ?, NOW())", [$module, $owner]);
        $templateId = (int)$adb->getLastInsertID();
        if ($templateId <= 0) {
            $r = $adb->pquery("SELECT MAX(id) AS m FROM vtiger_oot_templates", []);
            $templateId = (int)$adb->query_result($r, 0, 'm');
        }
        $fileName = basename($file['name']);
        $s3Key = $s3->getTemplateKey($templateId, $fileName);

        try {
            $s3->uploadFile($file['tmp_name'], $s3Key, 'application/vnd.openxmlformats-officedocument.wordprocessingml.document');
        } catch (Exception $e) {
            $adb->pquery("DELETE FROM vtiger_oot_templates WHERE id = ?", [$templateId]);
            if ($doRedirect) {
                header('Location: index.php?module=OnlyOfficeTemplates&view=AddTemplate&app=TOOLS&error=' . urlencode('Ошибка загрузки: ' . $e->getMessage()));
                return;
            }
            echo json_encode(['success' => false, 'error' => 'S3 upload failed: ' . $e->getMessage()]);
            return;
        }

        $adb->pquery("UPDATE vtiger_oot_templates SET name = ?, s3_key = ?, file_name = ? WHERE id = ?", [$name, $s3Key, $fileName, $templateId]);
        $id = $templateId;
        if ($doRedirect) {
            header('Location: index.php?module=OnlyOfficeTemplates&view=List&app=TOOLS');
            return;
        }
        echo json_encode(['success' => true, 'id' => $id, 's3_key' => $s3Key]);
    }
}