# This bash library contains the main function that creates the base disk.

function vm_install_base {
    local BASE_DISK=$1
    local BASE_BUILD_DISK=$DISK_DIR/tmp-disk.vdi

    # Port used for ssh forwarding when building base disk
    : ${VM_BASE_SSH_PORT:=2229}

    echo >&2 "$(date) osbash vm_install starts."

    ${WBATCH:-:} wbatch_begin_base

    # Don't remove BASE_BUILD_DISK if we are just faking it for wbatch
    ${OSBASH:-:} rm -f "$BASE_BUILD_DISK"
    ${WBATCH:-:} wbatch_delete_disk "$BASE_BUILD_DISK"

    vm_create "$VM_BASE_NAME"
    vm_mem "$VM_BASE_NAME" "${VM_BASE_MEM:=512}"

    if [ -z "${INSTALL_ISO-}" ]; then
        local ISO_NAME="$(get_iso_name)"

        if [  -z "$ISO_NAME" ]; then
            echo >&2 "Either ISO URL or name needed (ISO_URL, INSTALL_ISO)."
            exit 1
        fi
        INSTALL_ISO=$ISO_DIR/$ISO_NAME
        # Don't look for ISO image if we are only doing wbatch
        ${OSBASH:-:} find_install-iso "$ISO_NAME"
    fi

    echo >&2 -e "Install ISO:\n\t$INSTALL_ISO"
    $VBM storageattach "$VM_BASE_NAME" \
        --storagectl IDE \
        --port 0 \
        --device 0 \
        --type dvddrive \
        --medium "$INSTALL_ISO"

    vm_attach_guestadd-iso "$VM_BASE_NAME"

    ${OSBASH:-:} mkdir -pv "$DISK_DIR"
    create_vdi "$BASE_BUILD_DISK" 8000
    vm_attach_disk "$VM_BASE_NAME" "$BASE_BUILD_DISK"

    #---------------------------------------------------------------------------
    # Set up communication with base VM: ssh port forwarding by default,
    # VirtualBox shared folders for wbatch

    # wbatch runs cannot use ssh, so skip port forwarding in that case
    ${WBATCH:+:} vm_port "$VM_BASE_NAME" ssh "$VM_BASE_SSH_PORT" 22

    # Automounted on /media/sf_bootstrap for first boot
    ${WBATCH:-:} vm_add_share_automount "$VM_BASE_NAME" "$SHARE_DIR" bootstrap
    # Mounted on /$SHARE_NAME after first boot
    ${WBATCH:-:} vm_add_share "$VM_BASE_NAME" "$SHARE_DIR" "$SHARE_NAME"
    #---------------------------------------------------------------------------

    $VBM modifyvm "$VM_BASE_NAME" --boot1 dvd

    # Configure autostart
    autostart_reset

    # For wbatch, install osbashauto as a boot service
    ${WBATCH:-:} autostart osbash activate_autostart.sh

    autostart osbash base_fixups.sh

    # By default, set by lib/osbash/lib.* to something like scripts.ubuntu
    autostart_from_config "$BASE_INSTALL_SCRIPTS"

    autostart scripts zero_empty.sh shutdown.sh

    # Boot VM into distribution installer
    vbox_boot "$VM_BASE_NAME"

    local DELAY=5
    echo >&2 "Waiting $DELAY seconds for VM \"$VM_BASE_NAME\" to come up"
    vbox_sleep "$DELAY"

    vbox_distro_start_installer "$VM_BASE_NAME"

    echo >&2 "Installing operating system; waiting for reboot"

    # Wait for ssh connection and execute scripts in autostart directory
    # (for wbatch, osbashauto does the processing instead)
    ${WBATCH:+:} ssh_process_autostart "$VM_BASE_SSH_PORT" &
    # After reboot
    wait_for_autofiles
    echo >&2 "Installation done for VM $VM_BASE_NAME"

    vm_wait_for_shutdown "$VM_BASE_NAME"

    # Detach disk from VM now or it will be deleted by vm_unregister_del
    vm_detach_disk "$VM_BASE_NAME"

    vm_unregister_del "$VM_BASE_NAME"

    echo >&2 "Compacting $BASE_BUILD_DISK"
    $VBM modifyhd "$BASE_BUILD_DISK" --compact

    # This disk will be moved to a new name, and this name will be used for
    # a new disk next time the script runs.
    disk_unregister "$BASE_BUILD_DISK"

    echo >&2 "Base disk created"

    echo >&2 "Moving base disk to $BASE_DISK"
    ${OSBASH:-:} mv -vf "$BASE_BUILD_DISK" "$BASE_DISK"
    ${WBATCH:-:} wbatch_rename_disk "$BASE_BUILD_DISK" "$BASE_DISK"

    ${WBATCH:-:} wbatch_end_file

    echo >&2 -e "$(date) osbash vm_install ends\n"
}

# vim: set ai ts=4 sw=4 et ft=sh: