finish redux feature parity

Server/services/presentation.js

@@ -0,0 +1,49 @@
+const Service = require('./Service')
+const LRU = require('lru-cache')
+
+class PresentationService extends Service {
+  constructor (ctx) {
+    super(ctx)
+    this.M = ctx.M
+    this.discord = ctx.discord
+
+    this.cache = LRU({ max: 500, maxAge: 100 * 60 * 5 })
+  }
+
+  oldPresentableServers (collection, userId) {
+    return collection.map((server) => {
+      const gm = server.members.get(userId)
+
+      return {
+        id: server.id,
+        gm: {
+          nickname: gm.nickname,
+          color: gm.displayHexColor
+        },
+        server: {
+          id: server.id,
+          name: server.name,
+          ownerID: server.ownerID,
+          icon: server.icon
+        },
+        roles: server.roles.filter(r => r.id !== server.id).map(r => ({
+          id: r.id,
+          color: r.color,
+          name: r.name,
+          selected: gm.roles.has(r.id),
+          position: r.position
+        })),
+        message: 'moe moe kyuuuuuuuuun~',
+        perms: this.discord.getPermissions(gm)
+      }
+    })
+  }
+
+  rolesByServer (serverId, userId) {
+    // get from discord, merge with server categories
+  }
+
+
+}
+
+module.exports = PresentationService