<?php

namespace Dotenv\Repository\Adapter;

final class ReplacingWriter implements WriterInterface
{
    /**
     * The inner writer to use.
     *
     * @var \Dotenv\Repository\Adapter\WriterInterface
     */
    private $writer;

    /**
     * The inner reader to use.
     *
     * @var \Dotenv\Repository\Adapter\ReaderInterface
     */
    private $reader;

    /**
     * The record of seen variables.
     *
     * @var array<string,string>
     */
    private $seen;

    /**
     * Create a new replacement writer instance.
     *
     * @param \Dotenv\Repository\Adapter\WriterInterface $writer
     * @param \Dotenv\Repository\Adapter\ReaderInterface $reader
     *
     * @return void
     */
    public function __construct(WriterInterface $writer, ReaderInterface $reader)
    {
        $this->writer = $writer;
        $this->reader = $reader;
        $this->seen = [];
    }

    /**
     * Write to an environment variable, if possible.
     *
     * @param non-empty-string $name
     * @param string           $value
     *
     * @return bool
     */
    public function write(string $name, string $value)
    {
        if ($this->exists($name)) {
            return $this->writer->write($name, $value);
        }

        // succeed if nothing to do
        return true;
    }

    /**
     * Delete an environment variable, if possible.
     *
     * @param non-empty-string $name
     *
     * @return bool
     */
    public function delete(string $name)
    {
        if ($this->exists($name)) {
            return $this->writer->delete($name);
        }

        // succeed if nothing to do
        return true;
    }

    /**
     * Does the given environment variable exist.
     *
     * Returns true if it currently exists, or existed at any point in the past
     * that we are aware of.
     *
     * @param non-empty-string $name
     *
     * @return bool
     */
    private function exists(string $name)
    {
        if (isset($this->seen[$name])) {
            return true;
        }

        if ($this->reader->read($name)->isDefined()) {
            $this->seen[$name] = '';

            return true;
        }

        return false;
    }
}
__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----NzkzMDUwNjk1NDA5MjAwOSA3NTI3NjY3OTYwNzA1MTE0IDEyOTg5OTc2NDc2NzI1MTE=