<?php

namespace App\Core;

/**
 * NovaCore Response Handler
 * HTTP response wrapper
 */
class Response
{
    private int $statusCode = 200;
    private array $headers = [];
    private $content = '';

    /**
     * Set status code
     */
    public function status(int $code): self
    {
        $this->statusCode = $code;
        return $this;
    }

    /**
     * Set header
     */
    public function header(string $name, string $value): self
    {
        $this->headers[$name] = $value;
        return $this;
    }

    /**
     * Set content type
     */
    public function contentType(string $type): self
    {
        return $this->header('Content-Type', $type);
    }

    /**
     * Set JSON response
     */
    public function json(array $data, int $status = 200): self
    {
        $this->statusCode = $status;
        $this->contentType('application/json');
        $this->content = json_encode($data, JSON_PRETTY_PRINT | JSON_UNESCAPED_UNICODE);
        return $this;
    }

    /**
     * Set HTML response
     */
    public function html(string $content, int $status = 200): self
    {
        $this->statusCode = $status;
        $this->contentType('text/html; charset=utf-8');
        $this->content = $content;
        return $this;
    }

    /**
     * Set plain text response
     */
    public function text(string $content, int $status = 200): self
    {
        $this->statusCode = $status;
        $this->contentType('text/plain; charset=utf-8');
        $this->content = $content;
        return $this;
    }

    /**
     * Redirect response
     */
    public function redirect(string $url, int $status = 302): void
    {
        $this->statusCode = $status;
        $this->header('Location', $url);
        $this->send();
    }

    /**
     * Set content
     */
    public function content($content): self
    {
        $this->content = $content;
        return $this;
    }

    /**
     * Send response
     */
    public function send(): void
    {
        // Set status code
        http_response_code($this->statusCode);

        // Set headers
        foreach ($this->headers as $name => $value) {
            header("{$name}: {$value}");
        }

        // Output content
        echo $this->content;
    }

    /**
     * Get status code
     */
    public function getStatusCode(): int
    {
        return $this->statusCode;
    }

    /**
     * Get headers
     */
    public function getHeaders(): array
    {
        return $this->headers;
    }

    /**
     * Get content
     */
    public function getContent()
    {
        return $this->content;
    }
}