"use strict";

import {Utils} from "../Utils/Utils.ecma.js";
import {Check} from "../Utils/Check.ecma.js";

/**
 * @typedef {import("../Application/AnP.ecma.js").AnP} AnP
 */

/**
 * @class
 * @constructor
 * @param {!AnP} anp 
 * @returns {void}
 * @access private
 */
export const LicensesComponent = (function(){

    /**
     * @constructs LicensesComponent
     * @param {!AnP} anp 
     * @returns {void}
     * @access private
     */
    const LicensesComponent = function(anp){

        /** @type {LicensesComponent} */
        const self = this;
        /** @type {boolean} */
        let started = false;

        /**
         * @returns {void}
         * @access private
         */
        const constructor = () => {};
        
        /**
         * @param {?anp_start_callback} callback 
         * @returns {boolean}
         * @access public
         */
        this.start = (callback = null) => {

            /** @type {!anp_start_callback} */
            const end = ok => {
                Utils.execute(callback, ok);
                return ok;
            };

            return end(started ? false : started = true);
        };

        /**
         * @param {!...Array.<any|null>} [licenses] 
         * @returns {Array.<any|null>}
         * @access public
         */
        this.build = (...licenses) => ["span", {
            class : "licenses"
        }, licenses.map(([name, ...inputs]) => (
            Check.is_function(self[name]) ? self[name](...inputs) : 
        []))];

        /**
         * @returns {Array.<any|null>}
         * @access public
         */
        this.gplv3 = () => ["a", {
            class : "license gpl-v3", 
            href : "https://www.gnu.org/licenses/gpl-3.0.txt", 
            target : "_blank", 
            title : "GPLv3"
        }, [
            ["span", {class : "text"}, "GPLv3"], 
            ["image", {
                sources : "https://www.gnu.org/graphics/gplv3-88x31.png", 
                alt : "GPLv3"
            }]
        ]];

        /**
         * @returns {Array.<any|null>}
         * @access public
         */
        this.cc_by_nc_sa_4 = () => {

            /** @type {string} */
            const text = anp.i18n.get([
                "Creative Commons Attribution-NonCommertial-ShareAlike 4.0 International (CC-SA-NC-BY 4.0)", 
                "cc_by_nc_sa_4"
            ]);

            return ["a", {
                class : "license cc-by-nc-sa-4", 
                href : "https://creativecommons.org/licenses/by-nc-sa/4.0/", 
                target : "_blank", 
                data_i18n : "cc_by_nc_sa_4", 
                data_i18n_without : true, 
                title : text
            }, [
                ["span", {class : "text"}, text], 
                ["image", {
                    sources : "https://licensebuttons.net/l/by-nc-sa/4.0/88x31.png", 
                    data_i18n : "cc_by_nc_sa_4", 
                    data_i18n_without : true, 
                    alt : text
                }]
            ]];
        };

        /**
         * @param {?(number|string|Array.<number|string>)} [year = null] 
         * @param {?(string|Array.<string>)} [authors = null] 
         * @param {!boolean} [all_rights_reserved = false] 
         * @returns {Array.<any|null>}
         * @access public
         */
        this.copyright = (year = null, authors = null, all_rights_reserved = false) => {

            /** @type {Object.<string, string>} */
            const variables = {
                      year : Check.is_array(year) ? (
                          year.length == 1 ? year[0] : 
                          year.length == 2 ? year.join("-") : 
                          year.length ? year.slice(0, year.length - 1).join(", ") + " & " + year.slice(-1)[0] : 
                      "") : year || "", 
                      authors : Check.is_array(authors) ? (
                          authors.length == 1 ? authors[0] : 
                          authors.length == 2 ? authors.join(" & ") : 
                          authors.length ? authors.slice(0, authors.length - 1).join(", ") + " & " + authors.slice(-1)[0] : 
                      "") : authors || "", 
                      all_rights_reserved : all_rights_reserved ? anp.i18n.get([
                          "All rights reserved.", 
                          "all_rights_reserved"
                      ]) : ""
                  }, 
                  /** @type {string} */
                  text = anp.i18n.get([
                      "© Copyright{year}{authors}{all_rights_reserved}", 
                      "copyright"
                  ], {
                      year : variables.year = variables.year ? " " + variables.year + "." : "", 
                      authors : variables.authors = variables.authors ? " " + variables.authors + "." : "", 
                      all_rights_reserved : variables.all_rights_reserved = variables.all_rights_reserved ? (variables.year || variables.authors ? "" : ". ") + variables.all_rights_reserved : ""
                  });

            return ["span", {
                class : "license copyright", 
                data_i18n : "copyriht", 
                data_i18n_variables : variables, 
                title : text
            }, text];
        };

        constructor();

    };

    return LicensesComponent;
})();