Automatically run TRIM_HISTORY on teams

customize.dist/messages.js

@@ -136,6 +136,9 @@ define(req, function(AppConfig, Default, Language) {
         }
     };
 
+
+    Messages.team_autoTrim = "Removing unused history... Please wait."; // XXX
+
     return Messages;
 
 });

www/common/outer/history.js

@@ -62,6 +62,19 @@ define([
         return channels;
     };
 
+    let getTeamChannels = function (ctx, teamId) {
+        let team = Util.find(ctx.store, ['proxy', 'teams', teamId]);
+        if (!team) { return []; }
+
+        let channels = [team.channel];
+        let roster = team.keys.roster;
+        channels.push({
+            channel: roster.channel,
+            lastKnownHash: roster.lastKnownHash
+        });
+        return channels;
+    };
+
     var getEdPublic = function (ctx, teamId) {
         if (!teamId) { return Util.find(ctx.store, ['proxy', 'edPublic']); }
 
@@ -155,6 +168,8 @@ define([
         // If account trim history, get the correct channels here
         if (data.account) {
             channels = getAccountChannels(ctx);
+        } else if (data.team) {
+            channels = getTeamChannels(ctx, data.team);
         }
 
         var size = 0;

www/teams/app-team.less

@@ -292,6 +292,15 @@
             margin: 0;
         }
     }
+    .cp-team-trim {
+        display: flex;
+        align-items: center;
+        justify-content: center;
+        .fa {
+            font-size: 30px;
+            margin-right: 10px;
+        }
+    }
 
     .cp-teams-invite-uses {
         input {

www/teams/inner.js

@@ -191,6 +191,7 @@ define([
             'cp-team-avatar',
             'cp-team-export',
             'cp-team-delete',
+            'cp-team-history',
         ],
     };
 
@@ -398,6 +399,43 @@ define([
         ]);
     });
 
+
+    let AUTOTRIM_LIMIT = 102400; // 100kB history before auto trim
+    var trimHistory = function(common) {
+        var size;
+        var channels = [];
+        nThen(function(waitFor) {
+            APP.history.execCommand('GET_HISTORY_SIZE', {
+                team: APP.team,
+                channels: []
+            }, waitFor(function(obj) {
+                if (obj && obj.error) {
+                    waitFor.abort();
+                    console.error(obj.error);
+                    return;
+                }
+                channels = obj.channels;
+                size = Number(obj.size);
+            }));
+        }).nThen(function() {
+            if (!size || size < AUTOTRIM_LIMIT) {
+                // Nothing to delete
+                return;
+            }
+            var div = h('div.cp-team-trim', [
+                h('span.fa.fa-spin.fa-spinner'),
+                h('span', Messages.team_autoTrim)
+            ]);
+            let modal = UI.openCustomModal(UI.dialog.customModal(div, {buttons: []}));
+            console.log('Trimming team history', APP.team, size);
+            APP.history.execCommand('TRIM_HISTORY', {
+                channels: channels
+            }, function(obj) {
+                if (obj && obj.error) { console.error(obj.error); }
+                UI.removeModals();
+            });
+        });
+    };
     var openTeam = function (common, id, team) {
         var sframeChan = common.getSframeChannel();
         APP.module.execCommand('SUBSCRIBE', id, function () {
@@ -422,6 +460,7 @@ define([
                 APP.team = id;
                 APP.teamEdPublic = Util.find(team, ['keys', 'drive', 'edPublic']);
                 buildUI(common, true, team.owner);
+                if (team.owner) { trimHistory(common); }
             });
         });
     };
@@ -1556,6 +1595,7 @@ define([
                 }
             };
 
+            APP.history = common.makeUniversal('history');
             APP.module = common.makeUniversal('team', {
                 onEvent: onEvent
             });