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hydro/handler/home.js

@@ -1,8 +1,59 @@
 const { Route, Handler } = require('../service/server');
+const contest = require('../model/contest');
+const user = require('../model/user');
+const training = require('../model/training');
+const { PERM_VIEW_TRAINING, PERM_VIEW_CONTEST, PERM_VIEW_DISCUSSION } = require('../permission');
+const { CONTESTS_ON_MAIN, TRAININGS_ON_MAIN, DISCUSSIONS_ON_MAIN } = require('../options').constants;
 
 class HomeHandler extends Handler {
+    async contest() {
+        if (this.user.hasPerm(PERM_VIEW_CONTEST)) {
+            const tdocs = await contest.getMulti()
+                .limit(CONTESTS_ON_MAIN)
+                .toArray();
+            const tsdict = await contest.getListStatus(
+                this.user._id, tdocs.map((tdoc) => tdoc._id),
+            );
+            return [tdocs, tsdict];
+        }
+        return [[], {}];
+    }
+
+    async training() {
+        if (this.user.hasPerm(PERM_VIEW_TRAINING)) {
+            const tdocs = await training.getMulti()
+                .sort('_id', 1)
+                .limit(TRAININGS_ON_MAIN)
+                .toArray();
+            const tsdict = await training.getListStatus(
+                this.user._id, tdocs.map((tdoc) => tdoc._id),
+            );
+            return [tdocs, tsdict];
+        }
+        return [[], {}];
+    }
+
+    async discussion() {
+        // TODO(masnn)
+        // if (this.user.hasPerm(PERM_VIEW_DISCUSSION)) {
+        //     const ddocs = await discussion.getMulti()
+        //         .limit(DISCUSSIONS_ON_MAIN)
+        //         .toArray();
+        //     const vndict = await discussion.getListVnodes(map(discussion.node_id, ddocs));
+        //     return [ddocs, vndict];
+        // }
+        return [[], {}];
+    }
+
     async get() {
-        this.response.body = {};
+        const [[tdocs, tsdict], [trdocs, trsdict], [ddocs, vndict]] = await Promise.all([
+            this.contest(), this.training(), this.discussion(),
+        ]);
+        const udict = await user.getList(ddocs.map((ddoc) => ddoc.owner));
+        this.response.template = 'main.html';
+        this.response.body = {
+            tdocs, tsdict, trdocs, trsdict, ddocs, vndict, udict,
+        };
     }
 }