#!/bin/bash
#  $HeadURL$ $LastChangedRevision$

#  Properties
MY_ID=system_hardware
MY_PRIVATE_ATTRIBUTES="uname status helper"
MY_PUBLIC_ATTRIBUTES="ram disk cpu"
MY_ATTRIBUTES="$MY_PRIVATE_ATTRIBUTES $MY_PUBLIC_ATTRIBUTES"
PARENT_ID=system
MY_HELPER_IDS="$(ls | fgrep -v helper | xargs echo)"
#  Instantiate my attributes
for MY_ATTRIBUTE in ${MY_ATTRIBUTES^^}; do eval "$MY_ATTRIBUTE="; done

#  Defaults for the questions we ask (should only used here)

#  Hooks
edit_prologue()
{
    #  my attributes
    inherit ${MY_ATTRIBUTES^^}
    #  my inherited attributes
    :
    #  real locals
    
    debug 10 "edit_prologue: prompting for changes ..."
    if $VM_FLAG; then
        DFLT_RAM=256
        DFLT_DISK=16    #  15500MB for root, 500MB for swap
        DFLT_CPU=1
    else
        DFLT_RAM=
        DFLT_DISK=
        DFLT_CPU=
    fi
    question --force-ask=true RAM  "memory (MB)" "$DFLT_RAM"  "echo \"no help available\"" validate_positive_integer rationalise_positive_integer
    question --force-ask=true DISK "disk (GB)"   "$DFLT_DISK" "echo \"no help available\"" validate_positive_integer rationalise_positive_integer
    question --force-ask=true CPU  "CPUs (1-)"   "$DFLT_CPU"  "echo \"no help available\"" validate_positive_integer rationalise_positive_integer
    map_an_inherited_attribute_to_my_helpers
}

create_prologue()
{
    map_an_inherited_attribute_to_my_helpers
}

delete_prologue()
{
    map_an_inherited_attribute_to_my_helpers
}

list_prologue()
{
    return 0
}

map_an_inherited_attribute_to_my_helpers()
{
    #  my properties 
    inherit MY_HELPER_IDS MY_ATTRIBUTES 
    #  my attributes
    inherit ${MY_ATTRIBUTES^^} 
    #  those inherited attributes i will use
    inherit VM_FLAG
    #  real local

    #  Sanity checks
    [ "X$VM_FLAG" = Xtrue -o "X$VM_FLAG" = Xfalse ] || internal "VM_FLAG: seems not to have been propogated"

    #  Guts
    if $VM_FLAG; then
       MY_HELPER_IDS=vm
    else
       MY_HELPER_IDS=pm
    fi

    return 0
}