<?php
/**
 * Acknowledgify Plugin - Optimized for Efficient Settings Storage
 */

// Define a namespace for the plugin Humans_txt
namespace Acknowledgify\Includes;
use Acknowledgify\Includes\Helper;

// Exit if accessed directly.
if ( ! defined( 'ABSPATH' ) ) {
	exit;
}

// Load constants
require_once plugin_dir_path( __FILE__ ) . 'constants.php';

class Humans_txt {
	/**
	 * Update a specific setting with autoloading enabled.
	 */
	public static function update_setting( $key, $value ) {
		update_option( $key, $value, true );
	}

	/**
	 * Add rewrite rule for humans.txt.
	 */
	public static function add_write_rules() {
		add_rewrite_rule( '^humans\.txt$', 'index.php?acknowledgify_humans_txt=1', 'top' );
		add_action( 'template_redirect', array( __CLASS__, 'handle_humans_txt_redirect' ), 9 );
	}

	/**
	 * Handle humans.txt redirect without affecting other permalinks
	 */
	public static function handle_humans_txt_redirect() {
		if ( intval( get_query_var( 'acknowledgify_humans_txt' ) ) === 1 ) {
			remove_filter( 'template_redirect', 'redirect_canonical' );
		}
	}

	/**
	 * Make our custom query var available.
	 */
	public static function query_vars( $vars ) {
		$vars[] = 'acknowledgify_humans_txt';
		return $vars;
	}

	/**
	 * Outputs the humans.txt content based on the selected template.
	 */
	public static function output_humans_txt() {
		//Only available for humans.txt URL and enable_human_txt is true
        if ( intval( get_query_var( 'acknowledgify_humans_txt' ) ) === 1 ) {
			$template = sanitize_text_field( Helper::get_setting( 'humans_template', 'freelancer' ) );
			$output = ACKNOWLEDGIFY_HUMANS_TXT_HEADER;
			if ( 'freelancer' === $template ) {
				$freelancerContent = '';
				$freelancerContent .= Helper::format_setting( ACKNOWLEDGIFY_FREELANCER_NAME, ACKNOWLEDGIFY_LABEL_FREELANCER_NAME );
				$freelancerContent .= Helper::format_setting( ACKNOWLEDGIFY_FREELANCER_WEBSITE, ACKNOWLEDGIFY_LABEL_FREELANCER_WEBSITE);
				$freelancerContent .= Helper::format_setting( ACKNOWLEDGIFY_FREELANCER_EMAIL, ACKNOWLEDGIFY_LABEL_FREELANCER_EMAIL);
				$freelancerContent .= Helper::format_setting( ACKNOWLEDGIFY_FREELANCER_LOCATION, ACKNOWLEDGIFY_LABEL_FREELANCER_LOCATION );
				if($freelancerContent != '')
				{
					$output .= ACKNOWLEDGIFY_SECTION_FREELANCER;
					$output .= $freelancerContent;
				}
		
				$projectCreditsContent = '';
				$projectCreditsContent .= Helper::format_setting( ACKNOWLEDGIFY_FREELANCER_PROJECT, ACKNOWLEDGIFY_LABEL_FREELANCER_PROJECT );
				$projectCreditsContent .= Helper::format_setting( ACKNOWLEDGIFY_FREELANCER_ROLE, ACKNOWLEDGIFY_LABEL_FREELANCER_ROLE );
				$projectCreditsContent .= Helper::format_setting( ACKNOWLEDGIFY_FREELANCER_THANKS_TO, ACKNOWLEDGIFY_LABEL_FREELANCER_THANKS_TO );
				if($projectCreditsContent != '')
				{

					$output .= "\n" . ACKNOWLEDGIFY_SECTION_PROJECT_CREDITS;
					$output .= $projectCreditsContent;
				}
		
			} elseif ( 'agency' === $template ) {
				$agencyContent = '';
				$agencyContent .= Helper::format_setting( ACKNOWLEDGIFY_AGENCY_NAME, ACKNOWLEDGIFY_LABEL_AGENCY_NAME );
				$agencyContent .= Helper::format_setting( ACKNOWLEDGIFY_AGENCY_WEBSITE, ACKNOWLEDGIFY_LABEL_AGENCY_WEBSITE);
				$agencyContent .= Helper::format_setting( ACKNOWLEDGIFY_AGENCY_CONTACT, ACKNOWLEDGIFY_LABEL_AGENCY_CONTACT);
				$agencyContent .= Helper::format_setting( ACKNOWLEDGIFY_AGENCY_LOCATION, ACKNOWLEDGIFY_LABEL_AGENCY_LOCATION );
				if($agencyContent != '')
				{
					$output .= ACKNOWLEDGIFY_SECTION_TEAM;
					$output .= $agencyContent;
				}
		
				$projectCreditsContent = '';
				$projectCreditsContent .= Helper::format_setting( ACKNOWLEDGIFY_AGENCY_PROJECT, ACKNOWLEDGIFY_LABEL_AGENCY_PROJECT );
				$projectCreditsContent .= Helper::format_setting( ACKNOWLEDGIFY_AGENCY_DESIGN, ACKNOWLEDGIFY_LABEL_AGENCY_DESIGN );
				$projectCreditsContent .= Helper::format_setting( ACKNOWLEDGIFY_AGENCY_DEVELOPMENT, ACKNOWLEDGIFY_LABEL_AGENCY_DEVELOPMENT );
				$projectCreditsContent .= Helper::format_setting( ACKNOWLEDGIFY_AGENCY_SEO, ACKNOWLEDGIFY_LABEL_AGENCY_SEO );
				$projectCreditsContent .= Helper::format_setting( ACKNOWLEDGIFY_AGENCY_HOSTING, ACKNOWLEDGIFY_LABEL_AGENCY_HOSTING );
				$projectCreditsContent .= Helper::format_setting( ACKNOWLEDGIFY_AGENCY_THANKS, ACKNOWLEDGIFY_LABEL_AGENCY_THANKS );
				if($projectCreditsContent != '')
				{
					$output .= "\n" . ACKNOWLEDGIFY_SECTION_PROJECT_CREDITS;
					$output .= $projectCreditsContent;
				}
			} elseif ( 'custom' === $template ) {
				$output .= esc_html( Helper::get_setting( 'humans_custom_content', '' ) );
			}

			header( 'Content-Type: text/plain; charset=utf-8' );
			echo esc_html($output);
			exit;
		}
	}

	/**
	 * Outputs a reference to the humans.txt file in the <head> if the feature is enabled.
	 */
	public static function add_humans_txt_link() {
		if ( Helper::get_setting( 'enable_humans_txt', 0 ) ) {
			// Output the link tag, ensuring you use the correct URL.
			echo '<link rel="author" href="' . esc_url( home_url( '/humans.txt' ) ) . '" />' . "\n";
		}
	}
}