<?php

$app = json_decode(file_get_contents("./app.json"), true);
$start = microtime(true);
@mkdir("./data");
@mkdir("./data/backup");

$files = [];
$restored = [];
$times = [];

$currentOpStart = microtime(true);
file_put_contents("./data/backup/actions_" . date('Y-m-d_H-i-s') . ".json", @file_get_contents("./data/actions.json"));
file_put_contents("./data/backup/toys_" . date('Y-m-d_H-i-s') . ".json", @file_get_contents("./data/toys.json"));

exec('bash -c "cd /nas/web/ponies.equestria.horse/includes/data/backup; ls -tp toys_* | grep -v \'/$\' | tail -n +20 | xargs -I {} rm -- {}"');
exec('bash -c "cd /nas/web/ponies.equestria.horse/includes/data/backup; ls -tp actions_* | grep -v \'/$\' | tail -n +20 | xargs -I {} rm -- {}"');

$times["important_backup"] = microtime(true) - $currentOpStart;

$currentOpStart = microtime(true);
$documents = array_map(function ($i) {
    return [
        "id" => substr($i, 0, -5),
        ...(json_decode(file_get_contents("./data/docs/" . $i), true) ?? [])
    ];
}, array_filter(scandir("./data/docs"), function ($i) {
    return !str_starts_with($i, ".") && str_ends_with($i, ".json");
}));

$deletable = array_values(array_filter($documents, function ($i) {
    return strip_tags($i["contents"]) === "/delete";
}));

foreach ($deletable as $item) {
    if (time() - $item["last"]["date"] > 86400) {
        unlink("./data/docs/" . $item["id"] . ".json");
    }
}
$times["docs_cleanup"] = microtime(true) - $currentOpStart;

$currentOpStart = microtime(true);
foreach (array_filter(scandir("./data"), function ($i) {
    return !str_starts_with($i, ".") && $i !== "backup" && is_file("./data/" . $i);
}) as $file) {
    $files[] = $file;
}

@mkdir("./data/backup");
foreach ($files as $file) {
    copy("./data/" . $file, "./data/backup/" . $file);
}

function getSystem(string $id) {
    global $times;
    echo("System: $id\n");

    echo("    Base system info\n");
    $currentOpStart = microtime(true);
    file_put_contents("./data/$id-general.json", file_get_contents("https://pluralkit.equestria.dev/v2/systems/$id"));
    $times["system-general-$id"] = microtime(true) - $currentOpStart;

    echo("    System members\n");
    $currentOpStart = microtime(true);
    file_put_contents("./data/$id-members.json", file_get_contents("https://pluralkit.equestria.dev/v2/systems/$id/members"));
    $times["system-members-$id"] = microtime(true) - $currentOpStart;

    echo("    Fronters\n");
    $currentOpStart = microtime(true);
    file_put_contents("./data/$id-fronters.json", file_get_contents("https://pluralkit.equestria.dev/v2/systems/$id/fronters"));
    $times["system-fronters-$id"] = microtime(true) - $currentOpStart;

    echo("    Switches\n");
    $currentOpStart = microtime(true);

    echo("        Part 1/3\n");
    $switches1 = json_decode(file_get_contents("https://pluralkit.equestria.dev/v2/systems/$id/switches"), true);
    $oldest = $switches1[count($switches1) - 1]["timestamp"];

    echo("        Part 2/3\n");
    $switches2 = json_decode(file_get_contents("https://pluralkit.equestria.dev/v2/systems/$id/switches?before=$oldest"), true);
    $oldest = $switches2[count($switches2) - 1]["timestamp"];

    echo("        Part 3/3\n");
    $switches3 = json_decode(file_get_contents("https://pluralkit.equestria.dev/v2/systems/$id/switches?before=$oldest"), true);

    file_put_contents("./data/$id-switches.json", json_encode([...$switches1, ...$switches2, ...$switches3], JSON_PRETTY_PRINT));
    $times["system-switches-$id"] = microtime(true) - $currentOpStart;
}

getSystem("gdapd"); // Raindrops
getSystem("ynmuc"); // Cloudburst

echo("Calendar\n");
$currentOpStart = microtime(true);
file_put_contents("./data/calendar.ics", file_get_contents($app["calendar"]));
$times["calendar"] = microtime(true) - $currentOpStart;

echo("Downloading images.\n");
if (!file_exists("./data/images")) mkdir("./data/images");

foreach (json_decode(file_get_contents("./data/gdapd-members.json"), true) as $member) {
    $currentOpStart2 = microtime(true);
    echo("    " . $member['id'] . "\n");

    if (isset($member['avatar_url'])) {
        echo("        Profile picture\n");
        exec("convert -resize 128x128 -quality 50 \"" . $member['avatar_url'] . "\" \"./data/images/pf-gdapd-" . $member['id'] . ".webp\"");
    }

    echo("        Pony Town character\n");
    if (file_exists("../assets/uploads/pt-" . $member['name'] . ".png")) {
        exec("convert -resize 64x64 -quality 50 \"../assets/uploads/pt-" . $member['name'] . ".png\" \"./data/images/pt-gdapd-" . $member['id'] . ".png\"");
    } else {
        exec("convert -resize 64x64 -quality 50 \"../assets/uploads/pt.png\" \"./data/images/pt-gdapd-" . $member['id'] . ".png\"");
    }
    $times["images-gdapd-" . $member['id']] = microtime(true) - $currentOpStart2;
}

foreach (json_decode(file_get_contents("./data/ynmuc-members.json"), true) as $member) {
    $currentOpStart2 = microtime(true);
    echo("    " . $member['id'] . "\n");

    if (isset($member['avatar_url'])) {
        echo("        Profile picture\n");
        exec("convert -resize 128x128 -quality 50 \"" . $member['avatar_url'] . "\" \"./data/images/pf-ynmuc-" . $member['id'] . ".webp\"");
    }

    echo("        Pony Town character\n");
    if (file_exists("../assets/uploads/pt-" . $member['name'] . ".png")) {
        exec("convert -resize 64x64 -quality 50 \"../assets/uploads/pt-" . $member['name'] . ".png\" \"./data/images/pt-ynmuc-" . $member['id'] . ".png\"");
    } else {
        exec("convert -resize 64x64 -quality 50 \"../assets/uploads/pt.png\" \"./data/images/pt-ynmuc-" . $member['id'] . ".png\"");
    }
    $times["images-ynmuc-" . $member['id']] = microtime(true) - $currentOpStart2;
}

$currentOpStart = microtime(true);
function isJson($string): bool {
    json_decode($string);
    return (json_last_error() === JSON_ERROR_NONE);
}

foreach ($files as $file) {
    if (trim(file_get_contents("./data/" . $file)) === "" || (isJson(trim(file_get_contents("./data/" . $file))) && isset(json_decode(trim(file_get_contents("./data/" . $file)), true)["message"])) && !str_ends_with($file, ".html")) {
        $restored[] = $file;
        copy("./data/backup/" . $file, "./data/" . $file);
    }
}
$times["restore"] = microtime(true) - $currentOpStart;

echo("Backing up...\n");

if (date('i') === "00") {
    require_once "./backup.php";
    echo("Backup completed\n");
} else {
    echo("Backup skipped\n");
}

$time = array_sum($times);
echo("Completed in " . $time . " seconds.\n");

file_put_contents("./data/refresh.json", json_encode([
    "timestamp" => microtime(true),
    "duration" => $time,
    "restored" => $restored,
    "times" => $times
]));