/*******************************************************************

    Module        : /assets/js/download.js
    Desc.         : Fungsi-fungsi download data & laporan
    Created By    : Siau Pheng (siaupheng@3fonia.com).
    Created Date  : April 1st, 2011.
    Last Modified : October 2nd, 2026.

    (c) 3FONIA Software; WWW.3FONIA.COM.

*******************************************************************/

var Download = function(options) {
    var _options = {
        'url': '',
        'filename': 'file.bin',
        'title': '',
        'text': 'share dari aplikasi'
    };
    var _params = [];

    this.construct = function(options){
        if (typeof options == 'object') {
            $.extend(_options, options);
        } else _options.url = options;
    };
    this.set_url = function (url){
        _options.url = url;
    };
    this.add_param = function(par_id, par_val) {
        var _getvalue = (par_val) ? par_id + '=' + encodeURIComponent(par_val) : par_id;
        _params.push(_getvalue);
    };
    this._exec = async function(is_share) {
        if (!_options.url) {
            console.warn('cek url !');
            return false;
        }
        try {
            const blob = await $.ajax({
                type: 'POST',
                url: _options.url,
                data: FoniaJS.RequestParam(_params),
                xhrFields: {
                    responseType: 'blob'
                },
                success: async function (data, status, xhr) {
                    const disposition = xhr.getResponseHeader('Content-Disposition');
                    if (disposition && disposition.indexOf('attachment') !== -1) {
                        const filenameRegex = /filename[^;=\n]*=((['"]).*?\2|[^;\n]*)/;
                        const matches = filenameRegex.exec(disposition);
                        if (matches != null && matches[1]) { 
                            _options.filename = matches[1].replace(/['"]/g, '');
                        }
                    }
                }
            });
            const file = new File([blob], _options.filename, { type: blob.type });

            if (is_share === true && navigator.canShare && navigator.canShare({ files: [file] })) {
                await navigator.share({
                    files: [file],
                    title: _options.title ?? _options.filename,
                    text: _options.text
                });
            } else {
                const link = document.createElement('a');
                link.href = URL.createObjectURL(blob);
                link.download = _options.filename;
                link.click();
            }

        } catch (error) {
            console.error('Download / sharing gagal :', error);
        };
        return this;
    };
    this.share = async function() {
        await this._exec(true);
    };
    this.download = async function() {
        await this._exec(false);
    };
    this.construct(options);
};