var body_class = $("[data-body-class]").data("body-class");
function init_print() {
    console.log("init_print");
    if (body_class) {
        $("body").addClass(body_class);
    }
    $(".fit-text").each(function (i, e) {
        //var txt = $(this).text();
        var txt = $(this).html();
        txt = txt.replace('\r', '\n');
        txt = txt.replace('\n\n', '\n');
        var htm = $(this).html();
        //var txt_arr = txt.split('\n');
        var txt_arr = txt.split('<br>');        
        var txt_arr2 = Array();
        //debugger;
        var line = 0;
        var line_len = 1;
        var css = "", htm_lines = "";
        txt_arr.forEach((t, n) => {
            var len = t.trim().length;
            if (len > 0) {
                line++;
                if (len > line_len) { line_len = len }
                //let trim_text = t.trim();//去除任何空白:全型,半型, \t, \n...
                //let trim_text = str.replace(/^[^\S\u3000]+|[^\S\u3000]+$/g, "");//去空白但保留全型空白
                let trim_text = t; //完全不去空白
                txt_arr2.push(trim_text);                
            }
            //console.log(n,t,t.trim().length);
        });
        //console.log(i, $(this).html(),$(this).text());
        //console.log(i, txt==htm);
        //console.log(i, txt_arr, line, line_len);   
        line_len = Math.ceil(line_len / 3) * 3;
        //if(line>1){
        css = $(this).attr("style")||"";
        if(css.length>0){
            css += ";";
        }
        css += "--lines:" + line + ";--line_len:" + line_len + ";";

        //字少時, 加空間
        let allShort = txt_arr2.every(line => line.trim().length <= 7);
        let addSpaceClass = allShort ? "add-space" : "";
        allShort = txt_arr2.every(line => line.trim().length <= 3);
        addSpaceClass += allShort ? " add-space-3" : "";

        htm_lines = txt_arr2.join("<br>");
        $(this)
            .attr("style", css)
            .addClass(addSpaceClass)
            .html(htm_lines);
        //}        
        //console.log(i, line, line_len, css,txt);
    });

}
init_print();