<?php

namespace routes;

use classes\authentication;
use classes\subuser_permission_templates_service;
use objects\customer_default_driver_template_o;
use objects\logs_o;
use objects\users_o;
use traits\route_t;

class customerDefaultDriverTemplateRoute
{
    use route_t;

    public function run(): void
    {
        $this->get('/customer/default-driver-template', function () {
            global $response;
            $this->requirePermission('get_customer_default_driver_template');
            $user = (new authentication())->get_user();
            $subuser = (new authentication())->get_subuser();
            $customer_number = $this->resolveCustomerNumberForRead($user, $subuser);
            $templateKey = (new customer_default_driver_template_o())->getDefaultTemplate((int)$customer_number);
            if ($templateKey === null) {
                $response->success([
                    'customer_number' => (int)$customer_number,
                    'template_key' => null,
                ]);
                return;
            }
            $response->success([
                'customer_number' => (int)$customer_number,
                'template_key' => $templateKey,
            ]);
        }, [
            'get_customer_default_driver_template' => 'Get the default driver access template for a customer (own or, with extended permission, other customers).',
        ]);

        $this->put('/customer/default-driver-template', function () {
            global $response;
            $this->requirePermission('edit_customer_default_driver_template');
            $user = (new authentication())->get_user();
            $subuser = (new authentication())->get_subuser();
            $customer_number = $this->resolveCustomerNumberForWrite($user, $subuser);

            self::requireParameters(['template_key']);
            $templateKey = (string)self::getParameter('template_key');
            self::requireType($templateKey, self::type_string());
            self::requireMinLength('template_key', 1);
            self::requireMaxLength('template_key', 64);

            $service = new subuser_permission_templates_service();
            $normalized = $service->normalizeTemplateKey($templateKey);
            if ($normalized === null || $normalized === subuser_permission_templates_service::TEMPLATE_CUSTOM) {
                $response->error('Unknown driver access template.', 400);
            }

            $customer = (new users_o())->getUserByCustomerNumber((int)$customer_number);
            if (!$customer->exists()) {
                $response->error('Customer not found', 400);
            }

            $templateObject = new customer_default_driver_template_o();
            $templateObject->update((int)$customer_number, $normalized);

            $actor_id = $user !== false ? (int)$user->id : ($subuser !== false ? (int)$subuser->id : 0);
            (new logs_o())->add('customer_default_driver_template', 'global', 1, $actor_id, 'UPDATE_CUSTOMER_DEFAULT_DRIVER_TEMPLATE', 'Default driver template set to ' . $normalized);

            $response->success($templateObject->asArray());
        }, [
            'edit_customer_default_driver_template' => 'Edit the default driver access template for a customer (own or, with extended permission, other customers).',
        ]);

        $this->delete('/customer/default-driver-template', function () {
            global $response;
            $this->requirePermission('delete_customer_default_driver_template');
            $user = (new authentication())->get_user();
            $subuser = (new authentication())->get_subuser();
            $customer_number = $this->resolveCustomerNumberForWrite($user, $subuser);

            $templateObject = new customer_default_driver_template_o();
            if (!$templateObject->doesUserHaveDefaultTemplate((int)$customer_number)) {
                $response->error('This customer does not have a default driver template', 400);
            }
            $templateObject->selectByCustomerNumber((int)$customer_number);
            $templateObject->delete();

            $actor_id = $user !== false ? (int)$user->id : ($subuser !== false ? (int)$subuser->id : 0);
            (new logs_o())->add('customer_default_driver_template', 'global', 1, $actor_id, 'DELETE_CUSTOMER_DEFAULT_DRIVER_TEMPLATE', 'Default driver template removed');

            $response->success('Default driver template deleted');
        }, [
            'delete_customer_default_driver_template' => 'Delete the default driver access template for a customer (own or, with extended permission, other customers).',
        ]);
    }

    /**
     * @param users_o|false $user
     * @param \objects\subusers_o|false $subuser
     */
    private function resolveCustomerNumberForRead($user, $subuser): int
    {
        global $response;
        $customer_number = $this->customerNumberFromRequest();
        if ($subuser !== false) {
            $subuserCustomer = (int)$subuser->customer_number_target->value();
            if ($subuserCustomer <= 0 || $subuserCustomer !== $customer_number) {
                $response->error('Unauthorized', 401);
            }
            return $customer_number;
        }
        if ($user === false) {
            $response->error('Invalid session', 400);
        }
        if ((int)$user->customer_number->value() !== $customer_number) {
            $this->requirePermission('get_customer_default_driver_template_other');
        }
        return $customer_number;
    }

    /**
     * @param users_o|false $user
     * @param \objects\subusers_o|false $subuser
     */
    private function resolveCustomerNumberForWrite($user, $subuser): int
    {
        global $response;
        $customer_number = $this->customerNumberFromRequest();
        if ($subuser !== false) {
            $subuserCustomer = (int)$subuser->customer_number_target->value();
            if ($subuserCustomer <= 0 || $subuserCustomer !== $customer_number) {
                $response->error('Unauthorized', 401);
            }
            return $customer_number;
        }
        if ($user === false) {
            $response->error('Invalid session', 400);
        }
        if ((int)$user->customer_number->value() !== $customer_number) {
            $this->requirePermission('edit_customer_default_driver_template_other');
        }
        return $customer_number;
    }

    private function customerNumberFromRequest(): int
    {
        global $response;
        if (self::isParametersSet(['customer_number'])) {
            self::requireParameters(['customer_number']);
            $customer_number = (int)self::getParameter('customer_number');
        } else {
            $auth = new authentication();
            $user = $auth->get_user();
            $subuser = $auth->get_subuser();
            if ($user !== false) {
                $customer_number = (int)$user->customer_number->value();
            } elseif ($subuser !== false) {
                $customer_number = (int)$subuser->customer_number_target->value();
            } else {
                $response->error('Invalid session', 400);
            }
        }
        if ($customer_number <= 0) {
            $response->error('Invalid customer number', 400);
        }
        return $customer_number;
    }
}