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require 'mail'
require 'set'
module PixelatedService
class Contacts
include Enumerable
def initialize(persona)
@persona = persona
@contacts = nil
@contacts_cache = {}
@contacts_lookup = {}
end
def contact(ix)
@contacts_lookup[ix]
end
def each
curr = @contacts
while curr
yield curr
curr = curr.next
end
end
def normalize(addr)
addr.downcase
end
def parse(a)
::Mail::Address.new(a)
end
def update c, addr
@contacts_cache[normalize(addr.address)] = c
c.name = addr.display_name if addr.display_name
(c.addresses ||= Set.new) << addr.address
end
def create_new_contact(addr)
old_first = @contacts
c = Contact.new
c.ident = addr.hash.abs.to_s
c.next = old_first
@contacts_lookup[c.ident] = c
@contacts = c
update c, addr
c
end
def find_or_create(addr)
parsed = parse(addr)
if cc = @contacts_cache[normalize(parsed.address)]
update cc, parsed
cc
else
create_new_contact(parsed)
end
end
def latest(prev, n)
if prev && prev > n
prev
else
n
end
end
def new_mail_from(a, t)
contact = find_or_create(a)
contact.last_received = latest(contact.last_received, t)
contact.mails_received ||= 0
contact.mails_received += 1
end
def new_mail_to(a, t)
contact = find_or_create(a)
contact.last_sent = latest(contact.last_sent, t)
contact.mails_sent ||= 0
contact.mails_sent += 1
end
end
end
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