# File lib/gitcontacts.rb, line 71
def add_contacts operator, name
  return @@errno = :miss_args unless name
  @@errno = :ok
  gid = Contacts.create operator, :name => name
  contacts = Contacts.new gid
  User.new(operator).add_contacts gid
  gid
end

# File lib/gitcontacts.rb, line 149
def add_contacts_card operator, gid, payload
  return @@errno = :forbidden unless relation_valid? operator, gid
  # request id
  qid = Request::create :uid => operator, :gid => gid, :action => "create"
  req = Request.new qid
  if req.auto_merge? operator
    # here should return card_id if success
    cid = req.allow operator
    Request::delete qid
    @@errno = :ok
    return cid
  else
    @@errno = :pend
    User.new(operator).add_request qid
    Contacts.new(gid).add_request qid
  end
end

# File lib/gitcontacts.rb, line 229
def add_contacts_user operator, gid, uid
  return @@errno = :forbidden unless relation_valid? operator, gid
  return @@errno = :non_exist unless user_exist? uid
  contacts = Contacts.new(gid)
  if contacts.getadmins.include?(operator)
    @@errno = :ok
    contacts.add_user uid unless contacts.getusers.include? uid
    User.new(uid).add_contacts gid
  else
    @@errno = :forbidden
  end
end

# File lib/gitcontacts/util.rb, line 13
def contacts_keys
  [:name, :note, :users, :admins]
end

# File lib/gitcontacts.rb, line 40
def create_user hash
  return @@errno = :miss_args unless hash.include?(:email) && hash.include?(:password)
  return @@errno = :exist if user_exist?(hash[:email])
  User::create hash
  @@errno = :ok
end

# File lib/gitcontacts.rb, line 192
def delete_contacts_card operator, gid, cid
  return @@errno = :forbidden unless relation_valid? operator, gid
  return @@errno = :non_exist unless Gitdb::Contacts.new(operator).access(gid).get_card_by_id cid
  hash = {
    :uid => operator, 
    :gid => gid, 
    :action => "delete", 
    :card_id => cid
  }
  qid = Request::create hash
  req = Request.new qid
  if req.auto_merge? operator
    req.allow operator
    Request::delete qid
    @@errno = :ok
  else
    @errno = :pend
    User.new(operator).add_request qid
    Contacts.new(gid).add_request qid
  end
end

# File lib/gitcontacts.rb, line 168
def edit_contacts_card operator, gid, cid, payload
  return @@errno = :forbidden unless relation_valid? operator, gid
  return @@errno = :non_exist unless Gitdb::Contacts.new(operator).access(gid).get_card_by_id cid
  hash = {
    :uid => operator, 
    :gid => gid, 
    :action => "setdata", 
    :card_id => cid, 
    :content => JSON.generate(payload)
  }
  qid = Request::create hash
  req = Request.new qid
  if req.auto_merge? operator
    req.allow operator
    Request::delete qid
    @@errno = :ok
  else
    @@errno = :pend
    User.new(operator).add_request qid
    Contacts.new(gid).add_request qid
  end
end

# File lib/gitcontacts.rb, line 81
def edit_contacts_meta operator, gid, meta
  return @@errno = :forbidden unless relation_valid? operator, gid
  return @@errno = :miss_args unless meta
  @@errno = :ok
  contacts = Gitdb::Contacts.new operator
  contacts.access(gid).setmeta meta
  # TODO: check meta
end

# File lib/gitcontacts.rb, line 265
def edit_contacts_user_privileges operator, gid, uid, role
  return @@errno = :forbidden unless relation_valid? operator, gid
  contacts = Contacts.new gid
  admins = contacts.getadmins
  @@errno = :ok
  if admins.include?(operator)
    return @@errno = :forbidden if admins.length < 2 && operator == uid
    case role
    when "admin"
      contacts.add_admin uid unless contacts.getadmins.include? uid
    when "user"
      contacts.remove_admin uid
    else
      @@errno = :bad_args
    end
  else
    @@errno = :forbidden
  end
end

# File lib/gitcontacts.rb, line 297
def edit_request_status operator, gid, qid, action
  return @@errno = :non_exist unless Request.exist? qid
  return @@errno = :forbidden unless relation_valid?(operator, gid)
  return @@errno = :forbidden unless Contacts.new(gid).getadmins.include? operator
  @@errno = :ok
  req = Request.new(qid)
  case action
  when "permit"
    req.allow operator
    Request::delete qid
    User.new(req.getuid).remove_request qid
    Contacts.new(gid).remove_request qid
  when "reject"
    Request::delete qid
    User.new(req.getuid).remove_request qid
    Contacts.new(gid).remove_request qid
  else
    @@errno = :bad_args
  end
end

# File lib/gitcontacts.rb, line 19
def errsym
  @@errno
end

# File lib/gitcontacts/util.rb, line 4
def generate_code n
  [*'a'..'z', *0..9, *'A'..'Z'].sample(n).join
end

# File lib/gitcontacts.rb, line 291
def get_a_request operator, qid
  @@errno = :ok
  Request.exist?(qid) ? Request.new(qid) : @@errno = :non_exist
end

# File lib/gitcontacts.rb, line 47
def get_a_user operator, uid
  return @@errno = :non_exist unless user_exist? uid
  @@errno = :ok
  User.new(uid).getinfo
end

# File lib/gitcontacts.rb, line 286
def get_all_requests operator
  @@errno = :ok
  Contacts.new(gid).getrequests.map { |qid| Request.new qid }
end

# File lib/gitcontacts.rb, line 91
def get_contacts_card operator, gid, cid
  return @@errno = :forbidden unless relation_valid? operator, gid
  contacts = Gitdb::Contacts.new(operator).access(gid)
  card = contacts.get_card_by_id cid
  return @@errno = :non_exist unless card
  @@errno = :ok
  card.getdata.merge! card.getmeta
end

# File lib/gitcontacts.rb, line 101
def get_contacts_cards_by_related operator, gid, keyword
  return @@errno = :forbidden unless relation_valid? operator, gid
  @@errno = :ok
  contacts = Gitdb::Contacts.new operator
  contacts.access(gid).get_cards do |card|
    if card.getmeta[:owner].include?(keyword) || card.getdata.find { |k,v| v.include? keyword }
      card.getdata.merge! card.getmeta 
    end
  end
end

# File lib/gitcontacts.rb, line 113
def get_contacts_history operator, gid
  return @@errno = :forbidden unless relation_valid? operator, gid
  @@errno = :ok
  contacts = Gitdb::Contacts.new operator
  contacts.access(gid).read_change_history do |commit|
    {
      :author => commit.author,
      :operator => commit.committer,
      :mtime => commit.time,
      :oid => commit.oid,
      :message => commit.message
    }
  end
end

# File lib/gitcontacts.rb, line 63
def get_contacts_if operator, &condition
  @@errno = :ok
  user = User.new operator
  contacts = Gitdb::Contacts.new operator
  user.getcontacts.map { |gid| contacts.access(gid).getmeta }.select &condition
end

# File lib/gitcontacts.rb, line 221
def get_contacts_user operator, gid, uid
  return @@errno = :forbidden unless relation_valid? operator, gid
  return @@errno = :non_exist unless user_exist? operator
  @@errno = :ok
  User.new(uid).getinfo
end

# File lib/gitcontacts.rb, line 258
def get_contacts_user_privileges operator, gid, uid
  return @@errno = :forbidden unless relation_valid? operator, gid
  @@errno = :ok
  Contacts.new(gid).getadmins.include?(uid) ? 'admin' : 'user'
end

# File lib/gitcontacts.rb, line 215
def get_contacts_users operator, gid
  return @@errno = :forbidden unless relation_valid? operator, gid
  @@errno = :ok
  Contacts.new(gid).getusers
end

# File lib/gitcontacts.rb, line 54
def get_users operator
  @errno = :ok
  User::all
end

# File lib/gitcontacts/util.rb, line 17
def invitation_keys
  [:uid, :gid, :inviter_id]
end

# File lib/gitcontacts.rb, line 28
def password_valid? email, password
  User.new(email).password_correct? Digest::MD5.hexdigest(password)
end

# File lib/gitcontacts.rb, line 34
def relation_valid? operator, gid
  Contacts::exist?(gid) && 
  Contacts.new(gid).getusers.include?(operator) && 
  User.new(operator).getcontacts.include?(gid)
end

# File lib/gitcontacts.rb, line 242
def remove_contacts_user operator, gid, uid
  return @@errno = :forbidden unless relation_valid? operator, gid
  contacts = Contacts.new(gid)
  admins = contacts.getadmins
  @@errno = :ok
  if admins.include?(operator)
    return @@errno = :forbidden if admins.length < 2 && operator == uid
    contacts.remove_admin uid
    contacts.remove_user uid
  elsif operator == uid
    contacts.remove_user uid
  else
    @@errno = :forbidden
  end
end

# File lib/gitcontacts/util.rb, line 21
def request_keys
  [:uid, :gid, :action, :content]
end

# File lib/gitcontacts.rb, line 129
def revert_to operator, gid, oid
  return @@errno = :forbidden unless relation_valid? operator, gid
  return @@errno = :miss_args unless oid
  contacts = Gitdb::Contacts.new(operator).access gid
  return @@errno = :non_exist unless contacts.read_change_history { |commit| commit.oid }.include?(oid)
  @@errno = :ok
  operator = {
    :name => operator,
    :email => User.new(operator).getemail,
    :time => Time.now
  }
  commit = { 
    :author => operator, 
    :committer => operator, 
    :message => "revert to revision #{oid}" 
  }
  contacts.revert_to oid, commit
end

# File lib/gitcontacts.rb, line 23
def user_exist? uid
  User::exist? uid
end

# File lib/gitcontacts/util.rb, line 9
def user_keys
  [:email, :password, :contacts, :requests]
end