Login now fetches the list of available problems from the server.

Made the query work, so terminal interaction now works.

1 files changed, 84 insertions, 173 deletions

diff --git a/js/codeq/login.js b/js/codeq/login.js
index d449835..af50b22 100644
--- a/js/codeq/login.js
+++ b/js/codeq/login.js
@@ -1,183 +1,94 @@
 (function(){
-    var groups = {
-        'family_relations': {
-            'name': 'Family relations',
-            'problems': [
-                {'id': 'ancestor_2', 'name': 'ancestor/2'},
-                {'id': 'aunt_2', 'name': 'aunt/2'},
-                {'id': 'brother_2', 'name': 'brother/2'},
-                {'id': 'connected_3', 'name': 'connected/3'},
-                {'id': 'cousin_2', 'name': 'cousin/2'}
-            ]
-        },
-        'lists': {
-            'name': 'Lists',
-            'problems': [
-                {'id': '', 'name': ''},
-                {'id': '', 'name': ''},
-                {'id': '', 'name': ''},
-                {'id': '', 'name': ''},
-                {'id': '', 'name': ''}
-            ]
-        },
-        'sorting': {
-            'name': 'Sorting',
-            'problems': [
-                {'id': '', 'name': ''},
-                {'id': '', 'name': ''},
-                {'id': '', 'name': ''},
-                {'id': '', 'name': ''},
-                {'id': '', 'name': ''}
-            ]
-        },
-        'other': {
-            'name': 'Other',
-            'problems': [
-                {'id': '', 'name': ''},
-                {'id': '', 'name': ''},
-                {'id': '', 'name': ''},
-                {'id': '', 'name': ''},
-                {'id': '', 'name': ''}
-            ]
-        },
-        'sets': {
-            'name': 'Sets',
-            'problems': [
-                {'id': '', 'name': ''},
-                {'id': '', 'name': ''},
-                {'id': '', 'name': ''},
-                {'id': '', 'name': ''},
-                {'id': '', 'name': ''}
-            ]
-        },
-        'trees': {
-            'name': 'Trees',
-            'problems': [
-                {'id': '', 'name': ''},
-                {'id': '', 'name': ''},
-                {'id': '', 'name': ''},
-                {'id': '', 'name': ''},
-                {'id': '', 'name': ''}
-            ]
-        },
-        'license_plates': {
-            'name': 'License plates',
-        },
-        'clp_fd': {
-            'name': 'CLP(FD',
-            'problems': [
-                {'id': 'gcd_3', 'name': 'gcd/3'},
-                {'id': 'magic_1', 'name': 'magic/1'},
-                {'id': 'puzzle_abc_3', 'name': 'puzzle_abc/3'},
-                {'id': 'puzzle_beth_1', 'name': 'puzzle_beth/1'},
-                {'id': 'puzzle_momson_2', 'name': 'puzzle_momson/2'},
-                {'id': 'puzzle_ratio_2', 'name': 'puzzle_ratio/2'},
-                {'id': 'tobase_3', 'name': 'tobase/3'}
-            ]
-        },
-        'clp_r': {
-            'name': 'CLP(R)',
-            'problems': [
-                {'id': 'bounding_box_3', 'name': 'bounding_box/3'},
-                {'id': 'center_3', 'name': 'center/3'},
-                {'id': 'linear_opts_3', 'name': 'linear_opts/3'},
-                {'id': 'max_sum_2', 'name': 'max_sum/2'},
-                {'id': 'megabytes_2', 'name': 'megabytes/2'},
-                {'id': 'turkey_3', 'name': 'turkey/3'}
-            ]
-        },
-        'dcg': {
-            'name': 'DCG',
-            'problems': [
-                {'id': 'ab_2', 'name': 'ab/2'},
-                {'id': 'digit_2', 'name': 'digit/2'},
-                {'id': 'expr_2', 'name': 'expr/2'},
-                {'id': 'expr_3', 'name': 'expr/3'},
-                {'id': 'flower_2', 'name': 'flower/2'}
-            ]
-        },
-        'denotational_semantics': {
-            'name': 'Denotational semantics',
-            'problems': [
-                {'id': 'algol_3', 'name': 'algol/3'},
-                {'id': 'algol_for_3', 'name': 'algol_for/3'},
-                {'id': 'algol_if_3', 'name': 'algol_if/3'},
-                {'id': 'prog_8puzzle_2', 'name': 'prog_8puzzle/2'},
-                {'id': 'prog_8puzzle_3', 'name': 'prog_8puzzle/3'}
-            ]
-        },
-        'old_exams': {
-            'name': 'Old exams',
-            'problems': [
-                {'id': '', 'name': ''},
-                {'id': '', 'name': ''},
-                {'id': '', 'name': ''},
-                {'id': '', 'name': ''},
-                {'id': '', 'name': ''}
-            ]
-        }
-    };
-
-    $("#submit").on('click', function () {
-        var group = $('#problem_group').val(),
-            problem = $('#problems').val();
-        if (!group) alert('Choose a problem group');
-        else if (!problem) alert('Choose a problem');
-        else {
-            $.ajax({
-                'type': 'POST',
-                'url': '/codeq/login',
-                'accepts': 'application/json',
-                'contentType': 'application/json; charset=UTF-8',
-                'data': JSON.stringify({
-                    'username': $('#username').val(),
-                    'password': $('#password').val()
-                }),
-                'processData': false,
-                'dataType': 'json',
-                'error': function loginErrorHandler(jqXHR, textStatus, errorThrown) {
-                    alert('Request for login failed: ' + (errorThrown || textStatus));
-                },
-                'success': function loginSuccessHandler(data, textStatus, jqXHR) {
-                    if (data && (data.code === 0)) {
-                        window.location = 'prolog.html#sid=' + data.sid + '/grp=' + group + '/prb=' + problem;
-                    }
-                    else {
-                        alert('Login failed: code=' + data.code + ', reason=' + data.message);
-                    }
-                }
-            });
-        }
-    });
+    var urlPrefix = '/svc/';
 
     $(document).ready(function () {
-        var jqGroup = $('#problem_group'),
-            jqProblems = $('#problems'),
-            id, g, first_group, html = [];
 
-        for (id in groups) {
-            g = groups[id];
-            html.push('<option value="', id, '">', g.name, '</option>\n');
-        }
-        jqGroup.html(html.join(''));
-        first_group = html[1];
-        html = null;
+        $.ajax({
+            'type': 'POST',
+            'url': urlPrefix + 'list_problems',
+            'accepts': 'application/json',
+            'contentType': 'application/json; charset=UTF-8',
+            'data': JSON.stringify({
+                'language': 'prolog'
+            }),
+            'processData': false,
+            'dataType': 'json',
+            'error': function loginErrorHandler(jqXHR, textStatus, errorThrown) {
+                $('#disabled').css('cursor', '');
+                alert('Request to obtain list of problems failed: ' + (errorThrown || textStatus));
+            },
+            'success': function loginSuccessHandler(data, textStatus, jqXHR) {
+                var i, groups, group, problems, problem, first_group,
+                    jqGroup = $('#problem_group'),
+                    jqProblems = $('#problems'),
+                    html = [],
+                    mapping = {}
+                    onGroupChange = function () {
+                        var problems = mapping[jqGroup.val()],
+                            html = [],
+                            i, p;
+                        if (problems) {
+                            for (i = 0; i < problems.length; i++) {
+                                p = problems[i];
+                                html.push('<option value="', p.identifier, '">', p.name, '</option>\n')
+                            }
+                        }
+                        jqProblems.html(html.join(''));
+                    };
 
-        jqGroup.on('click', function () {
-            var g = groups[jqGroup.val()],
-                html = [],
-                problems, i, p;
-            if (g) {
-                problems = g.problems;
-                for (i = 0; i < problems.length; i++) {
-                    p = problems[i];
-                    if (!p.id) continue;
-                    html.push('<option value="', p.id, '">', p.name, '</option>\n')
+                if (data && (data.code === 0)) {
+                    $('#disabled').css('display', 'none');
+                    groups = data.problems;
+                    for (i = 0; i < groups.length; i++) {
+                        group = groups[i];
+                        html.push('<option value="', group.identifier, '">', group.name, '</option>\n');
+                        mapping[group.identifier] = group.problems;
+                    }
+                    jqGroup.html(html.join(''));
+                    first_group = html[1];
+                    html = null;
+
+                    jqGroup.on('click', onGroupChange);
+                    jqGroup.val(first_group);
+                    onGroupChange();
+
+                    $("#submit").on('click', function () {
+                        var group = $('#problem_group').val(),
+                            problem = $('#problems').val();
+                        if (!group) alert('Choose a problem group');
+                        else if (!problem) alert('Choose a problem');
+                        else {
+                            $.ajax({
+                                'type': 'POST',
+                                'url': urlPrefix + 'login',
+                                'accepts': 'application/json',
+                                'contentType': 'application/json; charset=UTF-8',
+                                'data': JSON.stringify({
+                                    'username': $('#username').val(),
+                                    'password': $('#password').val()
+                                }),
+                                'processData': false,
+                                'dataType': 'json',
+                                'error': function loginErrorHandler(jqXHR, textStatus, errorThrown) {
+                                    alert('Request for login failed: ' + (errorThrown || textStatus));
+                                },
+                                'success': function loginSuccessHandler(data, textStatus, jqXHR) {
+                                    if (data && (data.code === 0)) {
+                                        window.location = 'prolog.html#sid=' + data.sid + '/grp=' + group + '/prb=' + problem;
+                                    }
+                                    else {
+                                        alert('Login failed: code=' + data.code + ', reason=' + data.message);
+                                    }
+                                }
+                            });
+                        }
+                    });
+                }
+                else {
+                    $('#disabled').css('cursor', '');
+                    alert('Obtaining list of problems failed: code=' + data.code + ', reason=' + data.message);
                 }
             }
-            jqProblems.html(html.join(''));
         });
-
-        jqGroup.val(first_group);
     });
 })();
\ No newline at end of file