<?php

namespace WP_CLI\I18n;

use Gettext\Extractors\JsCode;
use Gettext\Translations;
use Peast\Syntax\Exception as PeastException;
use WP_CLI;

final class MapCodeExtractor extends JsCode {
    use IterableCodeExtractor;

    public static $options = [
        'extractComments' => [ 'translators', 'Translators' ],
        'constants'       => [],
        'functions'       => [
            '__'  => 'text_domain',
            '_x'  => 'text_context_domain',
            '_n'  => 'single_plural_number_domain',
            '_nx' => 'single_plural_number_context_domain',
        ],
    ];

    /**
     * {@inheritdoc}
     */
    public static function fromString( $text, Translations $translations, array $options = [] ) {
        if ( ! array_key_exists( 'file', $options ) || substr( $options['file'], -7 ) !== '.js.map' ) {
            return;
        }
        $options['file'] = substr( $options['file'], 0, -7 ) . '.js';

        try {
            $options += self::$options;

            $map_object = json_decode( $text );

            if ( ! isset( $map_object->sourcesContent ) || ! is_array( $map_object->sourcesContent ) ) {
                return;
            }

            $text = implode( "\n", $map_object->sourcesContent );

            WP_CLI::debug( "Parsing file {$options['file']}", 'make-pot' );

            $functions = new JsFunctionsScanner( $text );

            $functions->enableCommentsExtraction( $options['extractComments'] );
            $functions->saveGettextFunctions( $translations, $options );
        } catch ( PeastException $e ) {
            WP_CLI::debug(
                sprintf(
                    'Could not parse file %1$s.map: %2$s (line %3$d, column %4$d in the concatenated sourcesContent)',
                    $options['file'],
                    $e->getMessage(),
                    $e->getPosition()->getLine(),
                    $e->getPosition()->getColumn()
                ),
                'make-pot'
            );
        }
    }
}