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#compdef postconf postqueue postsuper

# Last updated from postfix 3.1.0.

local context state state_descr line
typeset -A opt_args
integer NORMARG

_postfix_queue_id() {
  local -a lines=( ${(f)"$(_call_program mailq 'mailq')"} )

  # $enable_long_queue_ids = no
  compadd "$@" -- ${${(M)lines:#(#s)([0-9A-F]## )*}/(#s)(#b)([0-9A-F]##)*/$match[1]}

  # $enable_long_queue_ids = yes
  compadd "$@" -- ${${${(M)lines:#(#s)[0-9bcdfghjklmnpqrstvwxyzBCDFGHJKLMNPQRSTVWXYZ](#c10)z*}%% *}%[*!]}
}

_postfix_main_cf_parameter() {
  local expl
  # Note for the future: if $mail_version >= 3.1, we can pass -H instead of
  # stripping the = signs by hand.
  _wanted parameters expl 'main.cf parameter' compadd "$@" -- ${${(f)"$(_call_program postconf-defaults "${(q)words[1]} -d")"}%% =*}
}

_postfix_main_cf_parameter_and_value() {
  # Note: be careful not to accidentally run 'postconf foo=bar' here.
  #
  # The '-P 1' syntax chooses the shortest match.  If the '1' were removed,
  # completing «postconf foo=bar=<TAB>» would change main.cf.  So, don't remove
  # it.
  if compset -P 1 '*='; then
    local value="`_call_program postconf-get-value-at-dir "${(q)words[1]} ${opt_args[-c]+"-c ${(q)opt_args[-c]}"} -h -- ${(q)IPREFIX%=}"`"
    [[ -n $value ]] && compadd "$@" -- $value
  else
    _postfix_main_cf_parameter -S=
  fi
}

case $service in
	(postsuper)
	_arguments -C -s : \
	'-p[purge old tempfiles]' \
	'-s[structure check and repair]' \
	'*-v[verbose]' \
	'-c[configdir]:config dir:_files -/' \
	'-d[delete]:queue id:_postfix_queue_id' \
	'-h[hold]:queue id:_postfix_queue_id' \
	'-H[release]:queue id:_postfix_queue_id' \
	'*-r[requeue]:queue id, or "ALL":_postfix_queue_id' \
	'1:queue:(hold incoming active deferred)'
	;;
        (postqueue)
        _arguments -C -s : \
          '*-v[enable verbose logging]' \
          '-c[configdir]:config dir:_files -/' \
          '(-f -i -j -p -s)-f[flush the queue]' \
          '(-f -i -j -p -s)-i[immediately deliver one message]:queue id:_postfix_queue_id' \
          '(-f -i -j -p -s)-j[print the queue in json]' \
          '(-f -i -j -p -s)-p[print the queue in traditional format]' \
          '(-f -i -j -p -s)-s[immediately deliver messages to specified site]:site:_hosts' 
        ;;
        (postconf)
          local -a file_ops=(-b -t -a -A -l -m -T)
          local -a modes=(-F -M -P $file_ops -p)
          local -a only_for_p=(-C -d -h -n)
          local -a only_for_asterisk_dot_cf=(-e -f -o -x)
          local -a args=(
              # global
              '-c[configdir]:config dir:_files -/' \
              '*-v[enable verbose logging]'

              # mode selection
              "($modes $only_for_p                              -X -#)"'-F[operate on master.cf entry fields]'
              "($modes $only_for_p                           -H      )"'-M[operate on master.cf services entries]'
              "($modes $only_for_p                                 -#)"'-P[operate on master.cf parameter settings]'
              "($modes $only_for_p $only_for_asterisk_dot_cf -H -X -#)"'-b[display DSN text, expanded]'
              "($modes $only_for_p $only_for_asterisk_dot_cf -H -X -#)"'-t[display DSN text, unexpanded]'
              "($modes $only_for_p $only_for_asterisk_dot_cf -H -X -#)"'-a[list available SASL server plug-ins]'
              "($modes $only_for_p $only_for_asterisk_dot_cf -H -X -#)"'-A[list available SASL client plug-ins]'
              "($modes $only_for_p $only_for_asterisk_dot_cf -H -X -#)"'-l[list supported mailbox locking methods]'
              "($modes $only_for_p $only_for_asterisk_dot_cf -H -X -#)"'-m[list supported lookup table types]'
              "($modes                                               )"'-p[(default) print main.cf settings]'
              "($modes $only_for_p $only_for_asterisk_dot_cf -H -X -#)"'-T[print TLS information]:mode:((
                           compile-version\:"OpenSSL compile-time version"
                           run-version\:"OpenSSL run-time version"
                           public-key-algorithms\:"supported public-key algorithms"
                           ))'

              # other options; comments indicate modes:
              # -p only
              '-C[display parameters from the specified class]:parameter class:(builtin service user all)'
              '-d[print default values]'
              '-h[print value only]'
              '-n[show parameters changed in main.cf]'

              # all except $file_ops:
              '-e[change parameter values]'
              '-f[fold long output lines]'
              '-o[set parameter value for this operation]: :_postfix_main_cf_parameter_and_value'
              '-x[expand '\''$name'\'' in parameter values]'

              # -p -F -P only
              '-H[show parameter name only]'
              # -p -M -P only
              '-X[remove parameters from main.cf/master.cf]'
              # -p -M only
              '-#[comment out parameters in main.cf/master.cf]'

              # $state
              '*: :->positional'
          )
          _arguments -C -s -S -n : "$args[@]"

          case $state in
            (positional)
              # Simulate the default
              if [[ -z $opt_args[(i)${(j.|.)modes}] ]]; then
                opt_args[-p]=""
              fi
              if [[ -n $opt_args[(i)(-b|-t)] ]]; then
                local expl
                if (( CURRENT == NORMARG )); then
                  _wanted files expl 'template file, or "" for default' _files
                else
                  _nothing
                fi
              elif [[ -n $opt_args[(i)${(j.|.)file_ops}] ]]; then
                _nothing
              elif (( $+opt_args[-p] )); then
                if (( $+opt_args[-e] )); then
                  _postfix_main_cf_parameter_and_value
                else
                  _postfix_main_cf_parameter
                fi
              else # one of the master.cf modes: -M -F -P
                _message "arguments for $opt_args[(i)${(j.|.)modes}] mode"
              fi
          esac
        ;;
esac