improve installation/documentation

server/api/controller/bot.js

@@ -59,13 +59,13 @@ ${event.description.length > 200 ? event.description.substr(0, 200) + '...' : ev
     const type = msg.event
 
     if (type === 'delete') {
-      const activitypub_id = msg.data
+      const activitypub_id = String(msg.data)
       const event = await Comment.findOne({ where: { activitypub_id } })
       if (event) await event.destroy()
       return
     }
 
-    const activitypub_id = msg.data.in_reply_to_id
+    const activitypub_id = String(msg.data.in_reply_to_id)
     if (!activitypub_id) return
     let event = await Event.findOne({ where: { activitypub_id } })
     if (!event) {

server/api/models/comment.js

@@ -1,7 +1,11 @@
 'use strict'
 module.exports = (sequelize, DataTypes) => {
   const comment = sequelize.define('comment', {
-    activitypub_id: DataTypes.STRING(18),
+    activitypub_id: {
+      type: DataTypes.STRING(18),
+      index: true,
+      unique: true,
+    },
     data: DataTypes.JSON
   }, {})
   comment.associate = function (models) {

server/api/storage.js

@@ -6,7 +6,11 @@ const sharp = require('sharp')
 const consola = require('consola')
 const config = require('config')
 
-mkdirp.sync(config.upload_path + '/thumb')
+try {
+  mkdirp.sync(config.upload_path + '/thumb')
+} catch (e) {
+  consola.error(e)
+}
 
 const DiskStorage = {
   _handleFile(req, file, cb) {