<?php

class RsvFormDefinition {
    public $_elements = [];

    public string $_id = "";

    public string $email_key = "";

    public array $membership = [];

    public string $success_message = "";

    /**
     * @param array<string,mixed> $definition Full definition array including 'elements', 'email_key' and 'success_message'.
     */
    public function __construct(string $id, array $definition) {
        $this->_elements = [];

        if (array_key_exists('elements', $definition)) {
            foreach ($definition['elements'] as $element) {
                array_push($this->_elements, RsvFormElementDefinition::fromArray($element));
            }
        }

        $this->_id             = $id;
        $this->email_key       = $definition['email_key'] ?? '';
        $this->membership      = $definition['membership'] ?? [];
        $this->success_message = $definition['success_message'] ?? '';
    }

    public function getId(): string {
        return $this->_id;
    }

    public function getEmailKey(): string {
        return $this->email_key;
    }

    /** @return array<int,array{program_id:int,discount:float,field:string}> */
    public function getMembershipBindings(): array {
        return $this->membership['bindings'] ?? [];
    }

    public function getMembershipCombine(): string {
        return $this->membership['combine'] ?? 'max';
    }

    /** Template shown to the visitor after a successful submission. */
    public function getSuccessMessage(): string {
        return $this->success_message;
    }


    public function hasElements() : bool {
        return count($this->_elements) > 0;
    }

    /**
     * @return array<int, RsvFormElementDefinition>
     */
    public function getElements() : array {
        return $this->_elements;
    }
}