<?php
namespace JVBase\integrations;

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

class Endpoint {
	protected string $endpoint;
	protected array $fields;
	public function __construct(string $endpoint) {
		$this->endpoint = $endpoint;
	}

	public function getEndpoint():string
	{
		return $this->endpoint;
	}

	public function addIdempotencyKey(?string $key = null):EndpointField
	{
		if (is_null($key)) {
			$key = wp_generate_uuid4();
		}
		$field = new EndpointField('idempotency_key');
		$this->fields['idempotency_key'] = $field;
		return $field;
	}

	public function getFields():array
	{
		return $this->fields;
	}
	public function addField(string $slug, array $data = []):EndpointField
	{
		$slug = EndpointField::sanitizeSlug($slug);
		$field = new EndpointField($slug);
		if (!empty($data)) {
			foreach ($data as $key => $value) {
				if ($key === 'required' && $value !== false) {
					$field->setRequired();
				} elseif (property_exists($field, $key)) {
					$method = 'set'.implode('',array_map('ucfirst', explode('_',$key)));
					if (method_exists($field, $method)) {
						$field->$method($value);
					}
				}
			}
		}
		$this->fields[$slug] = $field;
		return $field;
	}
	public function checkFields(array $fields):array|false
	{
		$fields = array_filter($fields, function ($f) use ($fields) {
			if (!array_key_exists($f, $this->fields)) {
				error_log('Endpoint '.$this->endpoint.'::checkFields removing field because it is not defined: '.print_r($fields[$f], true));
				return false;
			}
			return true;
		}, ARRAY_FILTER_USE_KEY);

		$required = array_filter($this->fields, function ($f) {
			return $f->isRequired();
		});

		$missing = [];
		foreach ($required as $field => $config) {
			if (!array_key_exists($field, $fields) || empty($fields[$field])) {
				error_log('Endpoint '.$this->endpoint.'::checkFields required field not found: '.$field);
				$missing[] = $field;
			}
		}
		if (!empty($missing)) {
			return false;
		}

		foreach ($fields as $field => $value) {
			$test = $this->fields[$field]->validate($value);
			if (!$test) {
				error_log('Endpoint '.$this->endpoint.'::checkFields could not validate value for '.$field.': '.print_r($value, true));
				unset($fields[$field]);
			}
		}

		return $fields;
	}
}