const config = require('config')
const moment = require('dayjs')
const htmlToText = require('html-to-text')

const { Model, DataTypes } = require('sequelize')
const sequelize = require('./index')

const Resource = require('./resource')
const Notification = require('./notification')
const EventNotification = require('./eventnotification')
const Place = require('./place')
const User = require('./user')
const Tag = require('./tag')

const utc = require('dayjs/plugin/utc')
const dayjs = require('dayjs')
dayjs.extend(utc)

class Event extends Model {}

Event.init({
  id: {
    allowNull: false,
    type: DataTypes.INTEGER,
    primaryKey: true,
    autoIncrement: true
  },
  title: DataTypes.STRING,
  slug: DataTypes.STRING,
  description: DataTypes.TEXT,
  multidate: DataTypes.BOOLEAN,
  start_datetime: {
    type: DataTypes.INTEGER,
    index: true
  },
  end_datetime: {
    type: DataTypes.INTEGER,
    index: true
  },
  image_path: DataTypes.STRING,
  is_visible: DataTypes.BOOLEAN,
  recurrent: DataTypes.JSON,
  likes: { type: DataTypes.JSON, defaultValue: [] },
  boost: { type: DataTypes.JSON, defaultValue: [] }
}, { sequelize, modelName: 'event' })

Event.belongsTo(Place)
Place.hasMany(Event)

Event.belongsTo(User)
User.hasMany(Event)

Event.belongsToMany(Tag, { through: 'event_tags' })
Tag.belongsToMany(Event, { through: 'event_tags' })

Event.belongsToMany(Notification, { through: EventNotification })
Notification.belongsToMany(Event, { through: EventNotification })

Event.hasMany(Resource)
Resource.belongsTo(Event)

Event.hasMany(Event, { as: 'child', foreignKey: 'parentId' })
Event.belongsTo(Event, { as: 'parent' })

Event.prototype.toAPNote = function (username, locale, to = []) {
  const tags = this.tags && this.tags.map(t => t.tag.replace(/[ #]/g, '_'))
  const plainDescription = htmlToText.fromString(this.description && this.description.replace('\n', '').slice(0, 1000))
  const content = `
  ${this.title}<br/><br/>
    📍 ${this.place && this.place.name}<br/>
    📅 ${moment.unix(this.start_datetime).locale(locale).format('dddd, D MMMM (HH:mm)')}<br/><br/>

    ${plainDescription}<br/><br/>

    <a href='${config.baseurl}/event/${this.id}'>${config.baseurl}/event/${this.id}</a><br/>

    ${tags && tags.map(t => `#${t}`)}
  `

  // const attachment = []
  // if (this.image_path) {
  //   attachment.push({
  //     type: 'Document',
  //     mediaType: 'image/jpeg',
  //     url: `${config.baseurl}/media/${this.image_path}`,
  //     name: null,
  //     blurHash: null
  //   })
  // }

  return {
    id: `${config.baseurl}/federation/m/${this.id}`,
    // name: this.title,
    url: `${config.baseurl}/event/${this.id}`,
    type: 'Note',
    // startTime: moment.unix(this.start_datetime).locale(locale).format(),
    // endTime: moment.unix(this.end_datetime).locale(locale).format(),
    // location: {
    //   name: this.place && this.place.name
    // },
    // attachment,
    // tag: tags && tags.map(tag => ({
    //   type: 'Hashtag',
    //   name: '#' + tag,
    //   href: '/tags/' + tag
    // })),
    published: dayjs(this.createdAt).utc().format(),
    attributedTo: `${config.baseurl}/federation/u/${username}`,
    to: 'https://www.w3.org/ns/activitystreams#Public',
    cc: [`${config.baseurl}/federation/u/${username}/followers`],
    content,
    summary: null
  }
}

module.exports = Event