program read_integrals

  PROVIDE ezfio_filename
  call ezfio_set_integrals_monoelec_disk_access_ao_one_integrals("None")
  call run
end

subroutine run
  use map_module
  implicit none
  
  integer :: iunit
  integer :: getunitandopen

  integer ::i,j,k,l
  double precision :: integral
  double precision, allocatable :: A(:,:)

  integer             :: n_integrals 
  integer(key_kind), allocatable   :: buffer_i(:) 
  real(integral_kind), allocatable :: buffer_values(:)
  integer(key_kind)  :: key
   
  call ezfio_set_integrals_monoelec_disk_access_ao_one_integrals("Read")

  allocate(buffer_i(ao_num**4/8), buffer_values(ao_num**4/8))
   
  iunit = getunitandopen('bielec_ao','r')
  n_integrals=0
  do 
    read (iunit,*,end=13) i,j,k,l, integral
    n_integrals += 1
    call bielec_integrals_index(i, j, k, l, buffer_i(n_integrals) )
    buffer_values(n_integrals) = integral
  enddo
  13 continue
  close(iunit)
  
  call insert_into_ao_integrals_map(n_integrals,buffer_i,buffer_values)

  call map_sort(ao_integrals_map)
  call map_unique(ao_integrals_map)

  call map_save_to_disk(trim(ezfio_filename)//'/work/ao_ints',ao_integrals_map)
  call ezfio_set_integrals_bielec_disk_access_ao_integrals('Read')

end