const {query} = require("../client")

class Channel {
  constructor(name, logged, hub, eventName, locationName) {
    this.name = name
    this.logged = logged
    this.hub = hub
    this.eventName = eventName
    this.locationName = locationName
  }

  static fromData(data) {
    return new Channel(data.name, data.logged, data.hub, data.eventName, data.locationName)
  }
}

class ChannelAPI {
  /**
   * Call `channels(filter)` query
   * 
   * @param {{logged:boolean, eventName:string, locationName:string}} filter 
   * @returns {Promise<Channel[]>}
   */
  list(filter = {}) {
    return query(`
      query ListChannel($filter: ChannelsFilter) {
        channels(filter: $filter) {
          name
          logged
          hub
          eventName
          locationName
        }
      }
    `, {filter}).then(({channels}) => {
       return channels.map(d => Channel.fromData(d))
    })
  }

  /**
   * Call `channels(filter)` query
   * 
   * @param {{name:string, logged:boolean, eventName:string, locationName:string}} filter 
   * @returns {Promise<Channel>}
   */
  add(input = {}) {
    return query(`
      mutation AddChannel($input: ChannelAddInput!) {
        addChannel(input: $input) {
          name
          hub
          logged
          eventName
          locationName
        }
      }
    `, {input}, {permissions: ["channel.add"]}).then(({addChannel}) => {
       return Channel.fromData(addChannel)
    })
  }

  /**
   * Call `channels(filter)` query
   * 
   * @param {{name:string, logged:boolean, eventName:string, locationName:string}} filter 
   * @returns {Promise<{name:string, logged:boolean, eventName:string, locationName:string}>}
   */
  edit(input = {}) {
    return query(`
      mutation EditChannel($input: ChannelEditInput!) {
        editChannel(input: $input) {
          name
          logged
          eventName
          locationName
        }
      }
    `, {input}, {permissions: ["channel.edit"]}).then(({editChannel}) => {
       return editChannel
    })
  }
}

module.exports = { Channel, channelApi: new ChannelAPI }