#!/bin/ksh93
#  ALTRAN_PROLOG_BEGIN_TAG                                                    
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# 61haes_r721 src/43haes/lib/ksh93/hacmp/KLIB_HACMP_delete_file_system.sh 1.6 
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# @(#)  7d4c34b 43haes/lib/ksh93/hacmp/KLIB_HACMP_delete_file_system.sh, 726, 2147A_aha726, Feb 05 2021 09:50 PM
# Start of POD-formatted documentation. Viewing suggestions:
#      perldoc <FILENAME>
#      pod2text -c <FILENAME>
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function devDoc {
    : <<'=cut' >/dev/null 2>&1

=head1 NAME

KLIB_HACMP_delete_file_system

=head1 SYNOPSIS

clmgr delete file_system {<file_system>[,<FS#2>,...] | ALL} \
            [ REMOVE_MOUNT_POINT={false|true} ]

=head1 DESCRIPTION

Deletes one or more file systems from the cluster.

=head1 ARGUMENTS

 1. file_systems [REQUIRED] [string]
    One or more (comma or space separated) file systems
    to attempt to delete.

 2. rm_mount_point {OPTIONAL] [boolean]
    Indicates if the mount point should be removed, too.

=head1 RETURN

 0: no errors were detected; the operation appears to have been successful
 1: a general error has occurred
 2: a specified resource does not exist, or could not be found
 3: some required input was missing
 4: some detected input was incorrect in some way
 5: a required dependency does not exist
 6: a specified search failed to match any data

=cut
} # End of POD-formatted documentation.


function KLIB_HACMP_delete_file_system {
    . $HALIBROOT/log_entry "$0()" "$CL"
    : version=@(#)  7d4c34b 43haes/lib/ksh93/hacmp/KLIB_HACMP_delete_file_system.sh, 726, 2147A_aha726, Feb 05 2021 09:50 PM
    : INPUTS: $*

    typeset file_systems=${1//\"/}
            file_systems=${file_systems//,/ }
    typeset -l rm_mount_point=${2//\"/}
    typeset non_existent_fs=""
    
    [[ $CLMGR_LOGGING == 'med' ]] && set +x  # Only trace param values

    #===================================
    : Declare and initialize variables
    #===================================
    typeset -i rc=$RC_UNKNOWN
    typeset -i i=0
    typeset file_system=

    #=================
    : Validate input
    #=================
    if [[ -z $file_systems ]]; then
        /usr/bin/dspmsg -s $CLMGR_SET $CLMGR_MSGS 100 "\nERROR: a name/label must be provided.\n\n" 1>&2
        rc=$RC_MISSING_INPUT

    else
        typeset -u uctext=$file_systems
        if [[ $uctext == "ALL" ]]; then
            file_systems=
            typeset available
            CL=$LINENO KLIB_HACMP_list_file_systems available
            for (( i=0; i<${#available[*]}; i++ )); do
                file_systems="$file_systems ${available[$i]}"
            done

            if [[ $file_systems == *([[:space:]]) ]]; then
                /usr/bin/dspmsg -s $CLMGR_SET $CLMGR_MSGS 342 "Warning: there are no file systems to delete.\n"
                rc=$RC_SUCCESS
            fi
        fi
    fi
    
    #================================================================
    : Delete the file systems if no input errors have been detected
    #================================================================
    if (( $rc == RC_UNKNOWN )); then
        for file_system in $file_systems; do

            CL=$LINENO KLIB_HACMP_is_known_file_system "$file_system"
            if (( $? != RC_SUCCESS )); then
                /usr/bin/dspmsg -s $CLMGR_SET $CLMGR_MSGS 102 "\nERROR: \"%1\$s\" does not appear to exist!\n\n" "$file_system" 1>&2
                non_existent_fs="true"
            else
                typeset rOpt=""
                [[ $rm_mount_point == @(y|t)* ]] && rOpt=" -r"

                typeset nodes=""
                typeset -A fsAttrs
                CL=$LINENO KLIB_HACMP_get_file_system_attributes "$file_system" fsAtrs
                nodes=${fsAttrs[NODES]}

                print -- "$0()[$LINENO]($SECONDS): _CSPOC_CALLED_FROM_SMIT=true _CSPOC_MODE=both $HASBIN/cl_rmfs -cspoc "-n $nodes"$rOpt \"$file_system\"" >>$CLMGR_TMPLOG  # Always log commands
                _CSPOC_CALLED_FROM_SMIT=true _CSPOC_MODE=both $HASBIN/cl_rmfs -cspoc "-n $nodes"$rOpt "$file_system"
                rc=$?
                if (( $rc != RC_SUCCESS )); then
                    rc=$RC_ERROR
                    /usr/bin/dspmsg -s $CLMGR_SET $CLMGR_MSGS 300 "\nERROR: failed to delete \"%1\$s\".\n\n" "$file_system" 1>&2
                    break
                fi
            fi
        done

        (( $rc != RC_SUCCESS )) && print -u2
    fi

    if [[ $non_existent_fs == "true" ]];
    then
        printf "\n" #A new line to make console output more structured and spacious.
        /usr/bin/dspmsg -s $CLMGR_SET $CLMGR_MSGS 145 "Available File Systems:\n\n"

        typeset available
        CL=$LINENO KLIB_HACMP_list_file_systems available
        for (( i=0; i<${#available[*]}; i++ )); do
            if [[ ${available[$i]} != *([[:space:]]) ]];
            then
                print -u1 "\t${available[$i]}"
            fi
        done
        rc=$RC_NOT_FOUND
    fi

    #=======================================================================
    : If a user input error was detected, provide some helpful suggestions
    #=======================================================================
    if (( $rc == RC_MISSING_INPUT || $rc == RC_INCORRECT_INPUT )) && \
       [[ $CLMGR_GUI == *([[:space:]]) ]]
    then
        CL=$LINENO cl_dspmsg -s $CLMGR_SET $CLMGR_MSGS 104 "For more information about available options and syntax, try\n\"$HAUTILS/clmgr %1\$s\". As an\nalternative, if the PowerHA SystemMirror man pages have been installed, invoke\n\"$HAUTILS/clmgr -hv\" (or \"/usr/bin/man clmgr\"),\nsearching for \"%2\$s\" in the displayed text.\n\n" \
        "delete file_system -h" "FILE SYSTEM:" "$CLMGR_PROGNAME" 1>&2
    fi

    log_return_msg "$rc" "$0()" "$LINENO"
    return $?
} # End of "KLIB_HACMP_delete_file_system()"