# Select and initialise exactly one MongoDB server mode.
#
# Source this file from the extension's top-level source directory:
#
#     source ./SETUP.bash
#
# The active installation is selected by the presence of exactly one of:
#
#     _mongodb_standalone_setup.bash
#     _mongodb_cluster_setup.bash

if [ ! -f ./_mongodb_os_dist_ver.bash ] || \
   [ ! -d ./STANDALONE-SERVER ] || \
   [ ! -d ./CLUSTER-SERVER ]; then
    echo "SETUP.bash must be sourced from the top-level MongoDB extension directory." >&2
    return 1 2>/dev/null || exit 1
fi

GS_MONGODB_STANDALONE_SETUP_FILE="./_mongodb_standalone_setup.bash"
GS_MONGODB_CLUSTER_SETUP_FILE="./_mongodb_cluster_setup.bash"

if [ -f "$GS_MONGODB_STANDALONE_SETUP_FILE" ] && \
   [ -f "$GS_MONGODB_CLUSTER_SETUP_FILE" ]; then
    cat >&2 <<'EOF'
Error: both MongoDB server setup files are active:

  _mongodb_standalone_setup.bash
  _mongodb_cluster_setup.bash

There can be only one active MongoDB server setup in a working copy.
Remove or rename one of these files, then source ./SETUP.bash again.
EOF
    return 1 2>/dev/null || exit 1
fi

if [ ! -f "$GS_MONGODB_STANDALONE_SETUP_FILE" ] && \
   [ ! -f "$GS_MONGODB_CLUSTER_SETUP_FILE" ]; then
    cat >&2 <<'EOF'
No active MongoDB server setup was found.

For a standalone MongoDB server, run:

  cp _mongodb_standalone_setup.bash.in _mongodb_standalone_setup.bash

The standalone defaults will normally work without editing. Review the copied
file if you need a different port, bind address, or storage location.

For a sharded MongoDB cluster, run:

  cp _mongodb_cluster_setup.bash.in _mongodb_cluster_setup.bash

Then edit the copied file to set the router, config-server and shard hostnames.
Only one of the two active setup files may exist in this working copy.
EOF
    return 1 2>/dev/null || exit 1
fi

if [ -f "$GS_MONGODB_STANDALONE_SETUP_FILE" ]; then
    . ./SETUP-STANDALONE-SERVER.bash || {
        unset GS_MONGODB_STANDALONE_SETUP_FILE
        unset GS_MONGODB_CLUSTER_SETUP_FILE
        return 1 2>/dev/null || exit 1
    }
else
    . ./SETUP-CLUSTER-SERVER.bash || {
        unset GS_MONGODB_STANDALONE_SETUP_FILE
        unset GS_MONGODB_CLUSTER_SETUP_FILE
        return 1 2>/dev/null || exit 1
    }
fi

unset GS_MONGODB_STANDALONE_SETUP_FILE
unset GS_MONGODB_CLUSTER_SETUP_FILE