<?php

namespace App\Repositories\Tool;

use Exception;

class ToolFunction
{
    public string $name;
    public string $description;
    public array $parameters;
    protected array $data;
    public array $required;

    /**
     * Create a new class instance.
     * @throws Exception
     */
    public function __construct(array $data)
    {
        $this->data = $data;
        $this->parse();
    }

    /**
     * @throws Exception
     */
    private function parse(): void
    {
        $this->name = $this->data['name'];
        $this->description = $this->data['description'];

        // 如果 parameters 不为空，则验证
        if (! empty($this->data['parameters'])) {
            // 检查 type 是否为 object
            if ($this->data['parameters']['type'] !== 'object') {
                throw new Exception('parameters type must be object');
            }

            if (! isset($this->data['parameters']['properties'])) {
                throw new Exception('parameters must have properties');
            }

            // 循环检查 properties 下的 key 的值，必须有 type 和 description
            foreach ($this->data['parameters']['properties'] as $key => $value) {
                if (! isset($value['type'])) {
                    throw new Exception('parameters properties must have type');
                }

                if (! isset($value['description'])) {
                    throw new Exception('parameters properties must have description');
                }
            }
        }

        $this->parameters = $this->data['parameters'];

        $this->required = $this->data['required'] ?? [];
    }
}