Json.php

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<?php
 
namespace Sabre\VObject\Parser;
 
use Sabre\VObject\Component\VCalendar;
use Sabre\VObject\Component\VCard;
use Sabre\VObject\EofException;
use Sabre\VObject\ParseException;
 
class Json extends Parser {
 
    protected $input;
 
    protected $root;
 
    function parse($input = null, $options = 0) {
 
        if (!is_null($input)) {
            $this->setInput($input);
        }
        if (is_null($this->input)) {
            throw new EofException('End of input stream, or no input supplied');
        }
 
        if (0 !== $options) {
            $this->options = $options;
        }
 
        switch ($this->input[0]) {
            case 'vcalendar' :
                $this->root = new VCalendar([], false);
                break;
            case 'vcard' :
                $this->root = new VCard([], false);
                break;
            default :
                throw new ParseException('The root component must either be a vcalendar, or a vcard');
 
        }
        foreach ($this->input[1] as $prop) {
            $this->root->add($this->parseProperty($prop));
        }
        if (isset($this->input[2])) foreach ($this->input[2] as $comp) {
            $this->root->add($this->parseComponent($comp));
        }
 
        // Resetting the input so we can throw an feof exception the next time.
        $this->input = null;
 
        return $this->root;
 
    }
 
    function parseComponent(array $jComp) {
 
        // We can remove $self from PHP 5.4 onward.
        $self = $this;
 
        $properties = array_map(
            function($jProp) use ($self) {
                return $self->parseProperty($jProp);
            },
            $jComp[1]
        );
 
        if (isset($jComp[2])) {
 
            $components = array_map(
                function($jComp) use ($self) {
                    return $self->parseComponent($jComp);
                },
                $jComp[2]
            );
 
        } else $components = [];
 
        return $this->root->createComponent(
            $jComp[0],
            array_merge($properties, $components),
            $defaults = false
        );
 
    }
 
    function parseProperty(array $jProp) {
 
        list(
            $propertyName,
            $parameters,
            $valueType
        ) = $jProp;
 
        $propertyName = strtoupper($propertyName);
 
        // This is the default class we would be using if we didn't know the
        // value type. We're using this value later in this function.
        $defaultPropertyClass = $this->root->getClassNameForPropertyName($propertyName);
 
        $parameters = (array)$parameters;
 
        $value = array_slice($jProp, 3);
 
        $valueType = strtoupper($valueType);
 
        if (isset($parameters['group'])) {
            $propertyName = $parameters['group'] . '.' . $propertyName;
            unset($parameters['group']);
        }
 
        $prop = $this->root->createProperty($propertyName, null, $parameters, $valueType);
        $prop->setJsonValue($value);
 
        // We have to do something awkward here. FlatText as well as Text
        // represents TEXT values. We have to normalize these here. In the
        // future we can get rid of FlatText once we're allowed to break BC
        // again.
        if ($defaultPropertyClass === 'Sabre\VObject\Property\FlatText') {
            $defaultPropertyClass = 'Sabre\VObject\Property\Text';
        }
 
        // If the value type we received (e.g.: TEXT) was not the default value
        // type for the given property (e.g.: BDAY), we need to add a VALUE=
        // parameter.
        if ($defaultPropertyClass !== get_class($prop)) {
            $prop["VALUE"] = $valueType;
        }
 
        return $prop;
 
    }
 
    function setInput($input) {
 
        if (is_resource($input)) {
            $input = stream_get_contents($input);
        }
        if (is_string($input)) {
            $input = json_decode($input);
        }
        $this->input = $input;
 
    }
 
}