function switch_ok(e) {
    if (e.target.checked == true) {
        agree_all();
    } else {
        disagree_all();
    }
}

function agree_all() {
    var inputs=document.getElementsByName("agree_box");
    for (var i=0; i<inputs.length; ++i) {
        inputs[i].checked=true;
    }
    document.getElementById('cb_0').checked = true;
}

function disagree_all() {
    var inputs=document.getElementsByName("agree_box");
    for (i=0; i<inputs.length; ++i) {
        inputs[i].checked=false;
    }
    document.getElementById('cb_0').checked = false;
}

function agree_clicked(e) {
    var chkd = e.checked;
    if (!chkd) {
        document.getElementById('cb_0').checked = false;
    } else {
        var inputs=document.getElementsByName("agree_box");
        var all = true;
        for (var i=0; i<inputs.length; ++i) {
            if (!inputs[i].checked) {
                all = false;
                break;
            }
        }
        if (all) {
            document.getElementById('cb_0').checked = true;
        }
    }
}

function hide_comment(id) {
    document.getElementById('tr_'+id).style.display = 'none';
    document.getElementById('bu_'+id).style.display = 'block';
}

function reset_rep1() {
    var rep = load_rep();
    disagree_all();
    for (var id in rep.c) {
        clear_comment(id);
    }
    delete rep.c;
    delete rep.a;
    delete rep.i;
    save_rep(rep);
}

function reset_rep2() {
    deleteCookie('rp_'+reviewID);
}

/*
 * Add a static comment to the row of the main table.
 * Creates the row if there is no one.
 */
function add_static_comment(id, comments) { //data=[ time, author, comment, agreed ]
    comments.sort(function(a,b) { return a[0] > b[0]; });

    var dl = document.getElementById('dl_'+id);
    if (!dl) {
        var tr = document.getElementById('item_'+id);
        if (!tr) {
            return;
        }
        var tbl = document.getElementById('status_table');
        var tr_c = tbl.insertRow(tr.rowIndex + 1); // TODO: unknown tr!
        tr_c.id = "ts_"+id;
        var td_c = tr_c.insertCell(0);
        td_c.colSpan = 8;
        dl = document.createElement('DL');
        dl.className = 'x';
        dl.id = "dl_"+id;
        td_c.appendChild(dl);
    }
    var comment;
    var name = getCookie('rp_name');
    for (var i=0; i<comments.length; ++i) {
        comment = comments[i];
        var dt_id = escape_id("dt_"+id+'_'+comment[0]+'_'+escape(comment[1]));
        if (document.getElementById(dt_id)) {
            continue;
        }
        var dt = document.createElement('DT');
        dt.id = dt_id;
        dt.title = new Date(parseInt(comment[0])+1287854282865).toLocaleString();
        if (id == 0) {
            dt.innerHTML = comment[3] ? comment[1] + ": Alright" : comment[1];
        } else {
            dt.innerHTML = comment[3] ? comment[1]+': Agreed' : comment[1];
        }
        dt.className = name == comment[1] ? 'xs' : 'x';
        dl.appendChild(dt);
        if (comment[2]) {
            var dd = document.createElement('DD');
            if (name == comment[1])
                dd.className = 'xs';
            dd.innerHTML = comment[2];
            dl.appendChild(dd);
        }
    }
}

function add_comment(id, comment) {
    var ta = document.getElementById('ta_'+id);
    document.getElementById('bu_'+id).style.display = "none";
    if (comment) {
        document.getElementById('lb_'+id).style.borderBottom = '2px dotted blue';
        document.getElementById('lb_'+id).title = comment;
    } else {
        document.getElementById('lb_'+id).style.borderBottom = 'none';
        document.getElementById('lb_'+id).title = "";
    }
    if (ta) {
        if (comment)
            ta.value = comment;
        document.getElementById('tr_'+id).style.display = "table-row";
        return;
    }

    var tbl = document.getElementById('status_table');
    var tr = document.getElementById('ts_'+id);
    if (!tr)
        tr = document.getElementById('item_'+id);
    var tr_c = tbl.insertRow(tr.rowIndex + 1);
    tr_c.id = "tr_"+id;
    var td_c = tr_c.insertCell(0);
    td_c.colSpan = 7;
    ta = document.createElement('TEXTAREA');
    ta.id = "ta_"+id;
    ta.name = "comment_box";
    ta.rows = 4;
    ta.cols = 80;
    ta.style.cssFloat = 'left';
    if (comment)
        ta.value = comment;
    var td_b = tr_c.insertCell(1);
    td_b.className = 'td_buttons';
    var b = document.createElement('BUTTON');
    b.innerHTML = "Delete";
    b.onclick = function() {
        return clear_comment(id);
    };
    b.className = "screen";

    var br = document.createElement('BR');
    var b1 = document.createElement('BUTTON');
    b1.innerHTML = "Hide";
    b1.onclick = function(e) {
        return hide_comment(id);
    };
    b1.className = "screen";

    td_c.appendChild(ta);
    td_b.appendChild(b);
    td_b.appendChild(br);
    td_b.appendChild(b1);
    ta.focus();
}

function clear_comment(id) {
    var ta = document.getElementById('ta_'+id);
    ta.value = "";
    var tr = document.getElementById('tr_'+id);
    var tbl = document.getElementById('status_table');
    document.getElementById('lb_'+id).style.borderBottom = 'none';
    document.getElementById('lb_'+id).title = "";
    document.getElementById('bu_'+id).style.display = 'block';
    tbl.deleteRow(tr.rowIndex);
}

function apply_rep(rep) {
    if (!rep)
        return;
    var id;
    if (rep.x) {
        var comments = {}; // { id: [ [ time, author, comment, agreed ], ... ] }
        var data, data1;
        for (var author in rep.x) {
            data = rep.x[author];
            for (var time in data) {
                data1 = data[time];
                if (data1.c) {
                    for (id in data1.c) {
                        if (!comments[id])
                            comments[id] = [];
                        comments[id].push([
                            time,
                            author,
                            data1.c[id],
                            data1.a && has(data1.a, parseInt(id))]);
                    }
                }
                if (data1.a) {
                    var c_id;
                    for (id=0; id<data1.a.length; ++id) {
                        c_id = comments[data1.a[id]];
                        if (!c_id)
                            comments[data1.a[id]] = [[
                                time, author, null, true]];
                        else {
                            for (var c=0; c<c_id.length; ++c) {
                                if (c_id[c][0] == time && c_id[c][1] == author)
                                    c_id[c][3] = true;
                            }
                        }
                    }
                }
            }
        }
        for (id in comments) {
            add_static_comment(id, comments[id]);
        }
    }
    
    if (rep.c) for (id in rep.c) {
        add_comment(id, rep.c[id]);
    }

    if (rep.a) {
        if (has(rep.a, 0)) {
            agree_all();
        } else {
            for (id=0; id<rep.a.length; ++id) {
                document.getElementById('cb_'+rep.a[id]).checked = true;
                agree_clicked(document.getElementById('cb_'+rep.a[id]));
            }
        }
    }
}

function get_rep() {
    var rep = load_rep();
    if (!rep) rep = {};
    rep.d = reviewID;
    var inputs = document.getElementsByName("agree_box");
    rep.a = [];
    
    var id;
    if (document.getElementById('cb_0').checked == true)
        add(rep.a, 0);
    else for (id=0; id<inputs.length; ++id) {
        if (inputs[id].checked == true)
            add(rep.a, parseInt(inputs[id].id.substring(3)));
    }
    if (!rep.a.length) delete rep.a;
    
    rep.c = {};
    var comments = document.getElementsByName("comment_box");
    for (var c=0; c<comments.length; ++c) {
        id = comments[c].id.substring(3);
        rep.c[id] = comments[c].value;
        if (comments[c].value) {
            document.getElementById('lb_'+id).style.borderBottom = '2px dotted blue';
            document.getElementById('lb_'+id).title = comments[c].value;
        }
    }
    return rep;
}

function add_field(msg, value) {
    var div = document.createElement('DIV');
    div.innerHTML = msg;
    var value_t = document.createElement(value);
    return [div, value_t];
}

function open_frame(msg, buttons) {
    var modal_frame = document.createElement('DIV');
    modal_frame.id = "modal_frame";
    modal_frame.className = "modal_frame";
    modal_frame.style.height = "240px";
    modal_frame.style.width = "320px";

    var frame_hdr = add_field(msg, 'DIV');
    frame_hdr[0].className = "frame_hdr";

    var close_btn = document.createElement('BUTTON');
    close_btn.innerHTML = 'Close';
    close_btn.onclick = function() {
        var bg = document.getElementById('modal_frame');
        bg.display = "None";
        while (bg.hasChildNodes()) {
            bg.removeChild(bg.lastChild);
        }
        bg.parentNode.removeChild(bg);
    };
    modal_frame.appendChild(frame_hdr[0]);
    modal_frame.appendChild(frame_hdr[1]);
    if (buttons) {
        var b;
        for (btn in buttons) {
            b = document.createElement('BUTTON');
            b.innerHTML = btn;
            b.onclick = buttons[btn];
            modal_frame.appendChild(b);
        }
    }
    modal_frame.appendChild(close_btn);
    document.getElementsByTagName("BODY")[0].appendChild(modal_frame);
    centrify(modal_frame);
    return frame_hdr[1];
}

function centrify(e) {
    e.style.top = (window.innerHeight - e.offsetHeight ) / 2 + "px";
    e.style.left = (window.innerWidth - e.offsetWidth ) / 2 + "px";
}

function wrap_lines(data) {
    var result = [];
    for (var i=0; i<data.length; i+=40) {
        result.push(data.substr(i, 40));
    }
    return result.join('\n');
}

function binary_get() {
    var rep = get_rep();
    if (rep == null) {
        alert("Nothing to report.");
        return;
    }
    var frame_data = open_frame("Review result:");
    
    var name = getCookie('rp_name');
    if (!name || name == '') {
        name = prompt('Enter your name');
        if (name) {
            var nm = new Date();
            nm.setTime((new Date()).getTime() + 24*60*60*1000*30);
            setCookie('rp_name', name, nm);
        }
    
    }
    if (name) {
        rep.n = name;
    }
    var bin_data = prepare_data(rep);
    var frame_text = add_field('Send this text back:', 'TEXTAREA');
    frame_text[1].className = "bin_rep";
    frame_text[1].readOnly = true;
    frame_text[1].cols = 40;
    frame_text[1].rows = 4;
    frame_text[1].value = wrap_lines(bin_data);
    
    var link = add_field('Or send this link:', 'INPUT');
    
    link[1].readOnly = true;
    link[1].value = window.location.href+"#"+bin_data;
    link[1].size = 40;
    frame_text.value = bin_data;
    frame_data.appendChild(frame_text[0]);
    frame_data.appendChild(frame_text[1]);
    frame_data.appendChild(link[0]);
    frame_data.appendChild(link[1]);
}

function preview_rep(rep) {
    var text = '';
    if (!rep)
        return text;
    if (rep.n)
        text += 'Reviewer: '+rep.n+'\n';
    if (rep.t)
        text += 'Time: '+new Date(1287854282865+parseInt(rep.t)).toLocaleString()+'\n';
    if (rep.d)
        text += 'Review id: '+rep.d+'\n';
    if (rep.a) {
        if (has(rep.a, 0))
            text += 'Agreed with: all items\n';
        else {
            text += 'Agreed with: ';
            var t = [];
            for (var i=0; i<rep.a; ++i)
                if (items[rep.a[i]])
                    t.push(items[rep.a[i]]);
            text += t.join() + '\n';
        }
    }
    if (rep.c) {
        for (var c in rep.c) {
            if (!parseInt(c))
                text += 'Summary:\n\t'+rep.c[c]+'\n';
            else
                text += 'Comment to '+items[parseInt(c)]+':\n\t'+rep.c[c]+'\n';
        }
    }
    if (rep.i) {
        for (var i in rep.i) {
            text += 'Inlined comments to '+items[parseInt(i)]+':\n';
            for (var c in rep.i[i]) {
                text += c+': '+rep.i[i][c] + '\n';
            }
        }
    }
    if (rep.x) {
        text += 'Has other comments from:\n';
        var keys = [];
        for (var i in rep.x) keys.push(i);
        text += keys.join()+'\n';
    }
    return text;
}

function binary_apply() {
    var frame_data = open_frame("Paste the text from the reviewer:",
        {
        'Preview':
            function () {
                var rep = str_to_rep(document.getElementById('bin_rep_data')
                    .value.replace(/[\r\n]/g, ''));
                document.getElementById('bin_check_data').value = preview_rep(rep);
            },
        'Apply':
            function() {
                var rep= merge(load_rep(), str_to_rep(
                        document.getElementById('bin_rep_data').value
                            .replace(/[\r\n]/g, '')
                    ));
                apply_rep(rep);
                save_rep(rep);
            }
        });
    var ta = document.createElement('TEXTAREA');
    ta.id = 'bin_rep_data';
    ta.cols = 40;
    ta.rows = 4;
    
    var check = add_field('Preview report:', 'TEXTAREA');
    check[1].readOnly = true;
    check[1].id = 'bin_check_data';
    check[1].cols = 40;
    check[1].rows = 5;
    frame_data.appendChild(ta);
    frame_data.appendChild(check[0]);
    frame_data.appendChild(check[1]);
}