export default class WikidataUtils {

    /**
     * Mapping from wikidata-codes to weblate-codes. The wikidata-code is the key, mapcomplete/weblate is the value
     */
    public static readonly languageRemapping = {
        "nb":"nb_NO",
        "zh-hant":"zh_Hant",
        "zh-hans":"zh_Hans",
        "pt-br":"pt_BR"
    }

    /**
     * Extract languages and their language in every language from the data source.
     * The returned mapping will be {languageCode --> {languageCode0 --> language as written in languageCode0  }  }
     * @param data
     * @param remapLanguages
     */
    public static extractLanguageData(data: {lang: {value:string}, code: {value: string}, label: {value: string}} [], remapLanguages: Record<string, string>): Map<string, Map<string, string>>{ 
        console.log("Got "+data.length+" entries")
        const perId = new Map<string, Map<string, string>>();
        for (const element of data) {
            let id = element.code.value
            id = remapLanguages[id] ?? id
            let labelLang = element.label["xml:lang"]
            labelLang = remapLanguages[labelLang] ?? labelLang
            const value = element.label.value
            if(!perId.has(id)){
                perId.set(id, new Map<string, string>())
            }
            perId.get(id).set(labelLang, value)
        }

        console.log("Got "+perId.size+" languages")
        return perId
    }
    
}