var honor_list = ["泰山学者优势特色学科人才团队领军人才","国家优秀青年科学基金获得者","长江学者和创新团队发展计划","山东省有突出贡献的中青年专家","泰山学者","泰山学者青年专家","山东省杰出青年基金获得者","山东省优秀青年基金获得者","全国优秀教师","省级教学名师","山东高校青创团队发展计划","香江学者","青岛市教学名师","山东省高校黄大年式教师团队"];

function name_compare(param1, param2) {
    var py1 = param1.getAttribute("pinyin");
    var py2 = param2.getAttribute("pinyin");
    if (py1 > py2){
        return 1;
    }else if(py1 == py2){
        return 0;
    }else{
        return -1;
    }
}

function get_teacher_group(prefix, teacherlist){
    if(teacherlist.length>0){
        var teacher_pyhead = '<p class="teacher-pyhead" id="pinyin_'+ prefix  +'">' + prefix + '</p>';
        var teacher_list = '<div class="teacher-list">';
        for(var ind=0; ind<teacherlist.length; ++ind){
            teacher_list += teacherlist[ind].outerHTML;
        }
        teacher_list += '</div>';
        return '<div>' + teacher_pyhead + teacher_list + '</div>';
    }
    else{
        return "";
    }
}

function process_teacher_group(groupby){
    var teacher_div = document.getElementsByClassName("teacher-list")[0];
    var teacher_list = teacher_div.getElementsByTagName("a");
    
    var res_head = "";
    var res_content = "";

    if (groupby != ""){
        var group_dict = {};
        var group_other = new Array();
        for(var ind=0; ind<teacher_list.length; ++ind){
            var item = teacher_list[ind];
            var label_all = item.getAttribute(groupby);
            if (label_all != null && label_all != ""){
                // console.log(item);
                // console.log(label_all);
                label_list = label_all.split("|");
                for (var label_ind=0; label_ind<label_list.length; ++label_ind){
                    var label = label_list[label_ind].replace(/^\s+|\s+$/g,"");
                    if (group_dict.hasOwnProperty(label) == false){
                        group_dict[label] = new Array();
                    }
                    group_dict[label].push(item);
                }
            }else{
                group_other.push(item);
            }
        }
        for (var key in group_dict){
            if (honor_list.indexOf(key) == -1){
                honor_list.push(key);
            }
        }
        for (var key_ind=0; key_ind<honor_list.length; ++key_ind){
            var key = honor_list[key_ind];
            if (group_dict.hasOwnProperty(key) == false){
                continue;
            }
            var value = group_dict[key].sort(name_compare);
            var teacher_head = '<p class="teacher-honor">' + key + '</p>';
            var teacher_list = '<div class="teacher-list-honor">';
            for(var ind=0; ind<value.length; ++ind){
                teacher_list += value[ind].outerHTML;
            }
            teacher_list += '</div>';
            teacher_content = '<div>' + teacher_head + teacher_list + '</div>';
            res_content += teacher_content;
        }
    }else{
        var char_az = {};
        for(var ind=0; ind<26; ++ind){
            char_az[String.fromCharCode(97+ind)] = new Array();
        }
        var char_other = new Array();

        for(var ind=0; ind<teacher_list.length; ++ind){
            teacher_list[ind].innerText = teacher_list[ind].innerText.trim();
            var pinyin = teacher_list[ind].getAttribute("pinyin");
            if (pinyin != null && char_az.hasOwnProperty(pinyin[0])){
                char_az[pinyin[0]].push(teacher_list[ind]);
            }else{
                char_other.push(teacher_list[ind]);
            }
        }

        for(var ind=0; ind<26; ++ind){
            char_az[String.fromCharCode(97+ind)] = char_az[String.fromCharCode(97+ind)].sort(name_compare);
        }
        char_other = char_other.sort(name_compare);
        
        if (char_other.length>0){
            res_head += '<a href="#pinyin_#">#</a>';
        }else{
            res_head += '<a class="disabled" href="#pinyin_#">#</a>';
        }
        res_content += get_teacher_group("#", char_other);

        for(var ind=0; ind<26; ++ind){
            var upper_char = String.fromCharCode(65+ind);
            var lower_char = String.fromCharCode(97+ind);
            if (char_az[lower_char].length>0){
                res_head += '<a href="#pinyin_'+upper_char+'">'+upper_char+'</a>';
            }else{
                res_head += '<a class="disabled" href="#pinyin_'+upper_char+'">'+upper_char+'</a>';
            }
            res_content += get_teacher_group(String.fromCharCode(65+ind), char_az[lower_char]);
        }
    }
    if (res_head != ""){
        res_head = '<div id="teacher_header">' + res_head + '</div>';
    }
    res_content = '<div id="teacher_content">' + res_content + '</div>';
    teacher_div.outerHTML = res_head + res_content;
}