<?php

$travelling = json_decode(file_get_contents($_SERVER['DOCUMENT_ROOT'] . "/includes/data/travelling/travelling.json"), true);

$json_cloudburst = json_decode(file_get_contents($_SERVER['DOCUMENT_ROOT'] . "/includes/data/ynmuc/members.json"), true);
$json_raindrops  = json_decode(file_get_contents($_SERVER['DOCUMENT_ROOT'] . "/includes/data/gdapd/members.json"), true);

if (!isset($json_cloudburst)) $json_cloudburst = [];
if (!isset($json_raindrops))  $json_raindrops  = [];

$members = [...array_map(function ($i) {
    $i["_system"] = "ynmuc";
    return $i;
}, $json_cloudburst), ...array_map(function ($i) {
    $i["_system"] = "gdapd";
    return $i;
}, $json_raindrops)];

foreach ($members as $member) {
    if (!isset($travelling[$member["id"]])) {
        $travelling[$member["id"]] = [
            "travelling" => false,
            "history" => []
        ];
    }
}

function withTravelers(array $members, string $system): array {
    global $travelling;

    return [
        ...array_map(function ($i) use ($system) {
            $i['system'] = $system;
            return $i;
        }, array_filter($members, function ($i) use ($travelling) {
            return !(isset($travelling[$i['id']]) && $travelling[$i['id']]['travelling']);
        })),
        ...array_filter(array_map(function ($i) use ($system) {
            $i['system'] = $system === "gdapd" ? "ynmuc" : "gdapd";
            return $i;
        }, json_decode(file_get_contents($_SERVER['DOCUMENT_ROOT'] . "/includes/data/" . ($system === "gdapd" ? "ynmuc" : "gdapd") . "/members.json"), true)), function ($i) use ($travelling) {
            return isset($travelling[$i['id']]) && $travelling[$i['id']]['travelling'];
        })
        ];
}

@file_put_contents($_SERVER['DOCUMENT_ROOT'] . "/includes/data/travelling/travelling.json", utf8_encode(json_encode($travelling, JSON_PRETTY_PRINT)));