2020-02-02 17:04:16 +00:00
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module OnlineStatusTracker
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2020-07-04 06:12:47 +00:00
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PRESENCE_DURATION = 60.seconds
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# presence : sorted set with timestamp as the score & object id as value
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# obj_type: Contact | User
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def self.update_presence(account_id, obj_type, obj_id)
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::Redis::Alfred.zadd(presence_key(account_id, obj_type), Time.now.to_i, obj_id)
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end
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def self.get_presence(account_id, obj_type, obj_id)
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connected_time = ::Redis::Alfred.zscore(presence_key(account_id, obj_type), obj_id)
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connected_time && connected_time > (Time.zone.now - PRESENCE_DURATION).to_i
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2020-02-02 17:04:16 +00:00
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end
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2020-07-04 06:12:47 +00:00
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def self.presence_key(account_id, type)
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case type
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when 'Contact'
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2020-07-07 18:44:07 +00:00
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format(::Redis::Alfred::ONLINE_PRESENCE_CONTACTS, account_id: account_id)
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2020-07-04 06:12:47 +00:00
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else
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2020-07-07 18:44:07 +00:00
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format(::Redis::Alfred::ONLINE_PRESENCE_USERS, account_id: account_id)
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2020-02-02 17:04:16 +00:00
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end
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end
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2020-07-04 06:12:47 +00:00
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# online status : online | busy | offline
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# redis hash with obj_id key && status as value
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def self.set_status(account_id, user_id, status)
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::Redis::Alfred.hset(status_key(account_id), user_id, status)
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end
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def self.get_status(account_id, user_id)
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::Redis::Alfred.hget(status_key(account_id), user_id)
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end
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def self.status_key(account_id)
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2020-07-07 18:44:07 +00:00
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format(::Redis::Alfred::ONLINE_STATUS, account_id: account_id)
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2020-07-04 06:12:47 +00:00
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end
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def self.get_available_contacts(account_id)
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contact_ids = ::Redis::Alfred.zrangebyscore(presence_key(account_id, 'Contact'), (Time.zone.now - PRESENCE_DURATION).to_i, Time.now.to_i)
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contact_ids.index_with { |_id| 'online' }
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end
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def self.get_available_users(account_id)
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user_ids = ::Redis::Alfred.zrangebyscore(presence_key(account_id, 'User'), (Time.zone.now - PRESENCE_DURATION).to_i, Time.now.to_i)
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2020-07-04 14:33:16 +00:00
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return {} if user_ids.blank?
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2020-07-04 06:12:47 +00:00
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user_availabilities = ::Redis::Alfred.hmget(status_key(account_id), user_ids)
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user_ids.map.with_index { |id, index| [id, (user_availabilities[index] || 'online')] }.to_h
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2020-02-02 17:04:16 +00:00
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end
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end
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