62 lines
1.7 KiB
PHP
62 lines
1.7 KiB
PHP
<?php
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class MediaDB
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{
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private $handler;
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private array $lines = [];
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// TODO: create a persist() method that updates the line if the offset where
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// it originally existed in is given by 'ftell'. If it doesn't have
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// an ID, then try to find it in the file and if it doesn't exist,
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// append
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public function __construct()
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{
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// Just initialize the file handler
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$this->handler = fopen($GLOBALS['path_mediadb'], 'r');
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if ($this->handler === false)
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Json::error('Error opening media DB');
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}
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private function getLine(): ?array
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{
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$ret = fgetcsv($this->handler, 0, ' ');
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if ($ret === false)
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return null;
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return $ret;
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}
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public static function add(array|Item $item)
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{
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$file = fopen($GLOBALS['path_mediadb'], 'a+');
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if ($file === false)
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Json::error('Failed opening media DB for adding new Item')->die();
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$line = $item->getHash() . ' ' . implode(' ', $item->getTags());
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if (fwrite($file, $line . "\n") == false)
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Json::error('Write operation failed on Item adding')->die();
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fclose($file);
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// The $this->list will be updated on trying to find new items
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}
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public function map(callable $func)
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{
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// First read from what's already in memory
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foreach ($this->lines as $i_line) {
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if ($func($i_line) === true) return;
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}
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// If we run out, read from the file and append to array so the next
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// lookup is fast
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while ($line = $this->getLine()) {
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$this->lines[] = $line;
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if ($func($line) === true) return;
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}
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}
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}
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