tkr/src/Model/TickModel/TickModel.php
2025-06-23 09:06:55 -04:00

106 lines
3.8 KiB
PHP

<?php
class TickModel {
// Everything in this class just reads from and writes to the filesystem
// It doesn't maintain state, so everything's just a static function
public static function streamTicks(int $limit, int $offset = 0): Generator {
$tick_files = glob(TICKS_DIR . '/*/*/*.txt');
usort($tick_files, fn($a, $b) => strcmp($b, $a)); // sort filenames in reverse chronological order
$count = 0;
foreach ($tick_files as $file) {
// read all the ticks from the current file and reverse the order
// so the most recent ones are first
//
// each file is a single day, so we never hold more than
// one day's ticks in memory
$lines = array_reverse(
file($file, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES)
);
// split the path to the current file into the date components
$pathParts = explode('/', str_replace('\\', '/', $file));
// assign the different components to the appropriate part of the date
$year = $pathParts[count($pathParts) - 3];
$month = $pathParts[count($pathParts) - 2];
$day = pathinfo($pathParts[count($pathParts) - 1], PATHINFO_FILENAME);
foreach ($lines as $line) {
// just keep skipping ticks until we get to the starting point
if ($offset > 0) {
$offset--;
continue;
}
// Ticks are pipe-delimited: timestamp|text
// But just in case a tick contains a pipe, only split on the first one that occurs
list($time, $mood, $tick) = explode('|', $line, 3);
// Build the timestamp from the date and time
// Ticks are always stored in UTC
$timestampUTC = "$year-$month-$day $time";
yield [
'timestamp' => $timestampUTC,
'mood' => $mood,
'tick' => $tick,
];
if (++$count >= $limit) {
return;
}
}
}
}
public static function save(string $tick, string $mood=''): void {
// build the tick path and filename from the current time
$now = new DateTime('now', new DateTimeZone('UTC'));
$year = $now->format('Y');
$month = $now->format('m');
$day = $now->format('d');
$time = $now->format('H:i:s');
// build the full path to the tick file
$dir = TICKS_DIR . "/$year/$month";
$filename = "$dir/$day.txt";
// create the directory if it doesn't exist
if (!is_dir($dir)) {
mkdir($dir, 0770, true);
}
// write the tick to the file (the file will be created if it doesn't exist)
$content = $time . '|' . $mood . '|' . $tick . "\n";
file_put_contents($filename, $content, FILE_APPEND);
}
public static function get(string $y, string $m, string $d, string $H, string $i, string $s): array{
$tickTime = new DateTime("$y-$m-$d $H:$i:$s");
$timestamp = "$H:$i:$s";
$file = TICKS_DIR . "/$y/$m/$d.txt";
if (!file_exists($file)) {
http_response_code(404);
echo "Tick not found: $file.";
exit;
}
$lines = file($file, FILE_IGNORE_NEW_LINES | FILE_SKIP_EMPTY_LINES);
foreach ($lines as $line) {
if (str_starts_with($line, $timestamp)) {
echo $line;
exit;
list($time, $emoji, $tick) = explode('|', $line, 3);
return [
'tickTime' => $tickTime,
'emoji' => $emoji,
'tick' => $tick,
'config' => ConfigModel::load(),
];
}
}
}
}