import i18n from '/path/i18n.es6.js';

i18n.set({
    "resource": "/path/language.json",
    "locale": "en"
}).init(function () {
    // Do something.
    // this._("string key");
});

// Examples
{
    "hello": "WORLD!",
    "anime" {
        "japan": {
            "_": "Japanese Douga",
            "detective conan": "{year} Vol.{num}",
            "attack_on_titan": "Attck on Titan"
        }
    }
}    

// basic string
let foo = i18n._("hello"); // "WORLD!"

// use "." for multiple level
i18n._("anime.japan"); // "Japanese Douga"
i18n._("anime.japan.attact_on_titan"); // "Attact On Titan"

// Examples
{
    "anime" {
        "japan": {
            "detective conan": "{year} Vol.{num}"
        }
    }
}    

// by object
const conan = {
    "year": 2022,
    "num": 99
};
i18n._("anime.japan.detective conan", conan); // output "2022 Vol.99"

// by array
i18n._("anime.japan.detective conan", [2022, 99]); // output "2022 Vol.99"

// by arguments
i18n._("anime.japan.detective conan", 2022, 99); // output "2022 Vol.99"

// Change default language 
i18n.set('locale', 'jp')._("string key"); // output in Japanese

// Get specific language
i18n._("en", "string key"); // string in english

// with variables
i18n._("en", "anime.japan.detective conan", conan);
i18n._("en", "anime.japan.detective conan", [2022, 99]);
i18n._("jp", "anime.japan.detective conan", 2022, 99);

// Initialize
i18n.set(...).init(function () {
    i18n.translate();
});

// Event trigger
button.addEventListener("click", function () {
    // auto translate in default language
    i18n.translate()
    
    // auto translate in specific language 
    // it won't change the default language setting
    i18n.translate('jp');    
});

// Datetime of default format
let foo = i18n.now();

// Format in specific language
let foo = i18n.now('language key');

// Custom format
let foo = i18n.now('language key', 'format');

{
    "Language key": {
        "__meta__": { // for datetime use.
            "datetime": "PHP like",
            "timezone": "UTC offset"
            "day": ["Mon", "Tue", "Wed"...], // abbr of day
            "days": ["Monday", "Tuesday", "Wednesday"...], // full name of day
            "month": ["Jan", "Feb", "Mar"...], // abbr of month
            "months": ["Janurary", "February", "March"...] // full name of month            
        },
        // Example {"key": "value"}
        "string key": "string", // String
        "string key": { // object
            "string key": {
                "string key": {...}
            }
        }
    }
}