80 lines
1.9 KiB
Ruby
80 lines
1.9 KiB
Ruby
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# frozen_string_literal: true
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class Chat::ChatChannelMembershipManager
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def self.all_for_user(user)
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UserChatChannelMembership.where(user: user)
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end
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attr_reader :channel
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def initialize(channel)
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@channel = channel
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end
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def find_for_user(user, following: nil)
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params = { user_id: user.id, chat_channel_id: channel.id }
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params[:following] = following if following.present?
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UserChatChannelMembership.includes(:user, :chat_channel).find_by(params)
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end
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def follow(user)
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membership =
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find_for_user(user) ||
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UserChatChannelMembership.new(user: user, chat_channel: channel, following: true)
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ActiveRecord::Base.transaction do
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if membership.new_record?
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membership.save!
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recalculate_user_count
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elsif !membership.following
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membership.update!(following: true)
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recalculate_user_count
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end
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end
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membership
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end
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def unfollow(user)
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membership = find_for_user(user)
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return if membership.blank?
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ActiveRecord::Base.transaction do
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if membership.following
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membership.update!(following: false)
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recalculate_user_count
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end
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end
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membership
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end
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def recalculate_user_count
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return if ChatChannel.exists?(id: channel.id, user_count_stale: true)
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channel.update!(user_count_stale: true)
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Jobs.enqueue_in(3.seconds, :update_channel_user_count, chat_channel_id: channel.id)
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end
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def unfollow_all_users
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UserChatChannelMembership.where(chat_channel: channel).update_all(
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following: false,
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last_read_message_id: channel.chat_messages.last&.id,
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)
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end
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def enforce_automatic_channel_memberships
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Jobs.enqueue(:auto_manage_channel_memberships, chat_channel_id: channel.id)
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end
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def enforce_automatic_user_membership(user)
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Jobs.enqueue(
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:auto_join_channel_batch,
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chat_channel_id: channel.id,
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starts_at: user.id,
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ends_at: user.id,
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)
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end
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end
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