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<?php

namespace Hyvor\JsonExporter;

use Hyvor\JsonExporter\Exception\FileOpenException;

class File
{

private Writer $writer;

private ValueAbstract $lastValue;

/**
     * @param string $filename The filename (with absolute or relative path) to write JSON to
     * @throws FileOpenException
     */
    public function __construct(string $filename)
    {
        $this->writer = new Writer($filename);
        $this->start();
    }

public function collection(string $key): Collection
    {
        if (isset($this->lastValue)) {
            $this->lastValue->endWithComma();
        }

$collection = new Collection($key, $this->writer);

$this->lastValue = $collection;

return $collection;
    }

public function value(string $key, mixed $value, bool $encode = true) : self
    {

if (isset($this->lastValue)) {
            $this->lastValue->endWithComma();
        }

$value = new Value($key, $value, $this->writer, $encode);

$this->lastValue = $value;

return $this;

}

private function start() : void
    {
        $this->writer->write("{");
    }

public function end() : self
    {

if (isset($this->lastValue)) {
            $this->lastValue->end();
        }

$this->writer->write("}");

return $this;
    }

public function written() : string
    {
        return $this->writer->written;
    }

}