<?php

declare(strict_types=1);

// File sources, images & scripts
$TRANSING_FILES = [
  "enby" => [
    "left_arrow" => "../../../img/webrings/transfem_enby_left_arrow.png",
    "button" => "../../../img/webrings/transfem_enby_button.png",
    "right_arrow" => "../../../img/webrings/transfem_enby_right_arrow.png"
  ],
  "trans" => [
    "left_arrow" => "../../../img/webrings/transfem_trans_left_arrow.png",
    "button" => "../../../img/webrings/transfem_trans_button.png",
    "right_arrow" => "../../../img/webrings/transfem_trans_right_arrow.png"
  ],
  "cloud" => [
    "left_arrow" => "../../../img/webrings/transfem_cloud_left_arrow.png",
    "button" => "../../../img/webrings/transfem_cloud_button.png",
    "right_arrow" => "../../../img/webrings/transfem_cloud_right_arrow.png"
  ]
];

$TRANSING_SCRIPT_SOURCE = [
  "selected_source" => 1,
  "sources" =>
  [["url" => "https://transring.neocities.org/ring.js",
    "source" => "internet"],
  ["url" => "/transingtheinternet.js",
    "source" => "local"]]
    ];

// Specific variables for script
$TRANSING_ROOT = "https://transring.neocities.org";
$TRANSING_VALID_WIDGET_TYPES = ["cloud", "enby", "trans","error"];

// Personal identifiers/choices
$TRANSING_WIDGET_TYPE = $TRANSING_VALID_WIDGET_TYPES[1];
$TRANSING_ID = 1;

// Functions
function transingSplit(string $array) {
  $array = preg_replace('/\s+/', '', $array);
  $i = 0;
  while (strlen($array) !== 0) {
      
    // Strip coma if found
    if (str_starts_with($array,',')) {
      $array = substr($array,1);
    } 
    if (str_starts_with(strrev($array),',')) {
      $array = substr($array,0,-1);
    }

    if (strpos($array,'/',1) > 1 or strpos($array,'/',1) == FALSE) {
      $commented=FALSE;
      } else {
      $commented=TRUE;
      }


    if (str_starts_with($array,',')) {
      $array = substr($array,1);
    }

    // Get substring position and length
    $commented ? $start_pos=3 : $start_pos=1;
    $end_pos = strpos($array,"\"",$start_pos);
    $item_len = $end_pos - $start_pos;

    if (!$commented){
      $return_array[$i] = substr($array,$start_pos,$item_len); 
    } else {
      $return_array[$i] = '';
    }
    
    // Save website into array, and strip array
    if (!$commented) { 
      $item_len = $item_len +2; // +2 from " and "
    } else {
      $item_len = $item_len +4; // +4 from ", ", / and /
    }

    $array = substr($array,$item_len);

    $i++;
  }

  unset($array, $commented, $start_pos, $end_pos, $item_len);
  return $return_array;
}

$transing_sites = scrapeWebsiteSites($TRANSING_SCRIPT_SOURCE,'sites :[',']');
$transing_sites = transingSplit($transing_sites);

for ($i = 0; $i < count($transing_sites); $i++){
  if ($i == $TRANSING_ID) {
    $transing_prev = 'https://' . $transing_sites[($i-1)];
    $transing_current = 'https://' . $transing_sites[($i)];
    $transing_next = 'https://' . $transing_sites[($i+1)];
    $found = TRUE;
  }
}

if (!isset($found)) {
  echo ("ERROR ID NOT FOUND");
}