#!/bin/bash

INVENTORY=ansible_hosts
PLAYBOOK=run-one-role.yml
ARGS=""
REINSTALL=0
CWD=`pwd`
IIAB_STATE_FILE=/etc/iiab/iiab_state.yml
LOCAL_VARS_FILE=/etc/iiab/local_vars.yml

if [ ! -f $PLAYBOOK ]; then
    echo "Exiting: IIAB Playbook not found."
    echo "Please run this in /opt/iiab/iiab (top level of the git repo)."
    exit 1
fi

if [[ $# -eq 0 ]] || [ "$2" == "--reinstall" ] || [ "$3" == "--reinstall" ] ; then
    echo "Usage: ./runrole <name of role>"
    echo "Usage: ./runrole --reinstall <name of role>"
    echo
    echo "Optional 2nd parameter is full PATH/FILENAME for logging."
    echo "If omitted, <current directory>/iiab-debug.log is used."
    exit 0
fi

if [ "$1" == "--reinstall" ]; then
    ARGS="$ARGS -e reinstall=True"
    REINSTALL=1
    shift 1
fi

#if ! grep -q "^""$1""_install: True" $LOCAL_VARS_FILE; then
#    echo "ERROR: $LOCAL_VARS_FILE must contain '""$1""_install: True'"
#    exit 1
#fi

# 2020-08-05: yes /etc/iiab/iiab_state.yml is necessary, but we DON'T
# want to encourage sloppy operators to delete/touch this file.
#
# (The iiab_state.yml file should always be created by ./iiab-install,
# for IIAB's Ansible roles that then auto-populate this file.)
#
# FYI ./iiab-network and ./iiab-configure likewise warn operators (IN RED!)
# if they try to run without the existence of /etc/iiab/iiab_state.yml :
#
# ERROR! vars file /etc/iiab/iiab_state.yml was not found
#
# Needed for Stages 1-3 if not installed yet
#if [ ! -f $IIAB_STATE_FILE ]; then
#    touch $IIAB_STATE_FILE
#fi

#if ! grep -q $1_install $LOCAL_VARS_FILE; then
#    echo " $1_install: not found in $VARS"
#    echo " Please review $VARS and edit as required"
#    exit 1
#elif grep $1_install $LOCAL_VARS_FILE | grep -q --exclude "#" False; then
#    echo " $1_install: set to False found in $VARS"
#    echo " Please review $VARS and edit as required"
#    exit 1
#elif grep $1_install $LOCAL_VARS_FILE | grep -q "#"; then
#    echo " $1_install: commented out (#) in $VARS"
#    echo " Please review $VARS and edit as required"
#    exit 1
#else
#    if grep $1_install $LOCAL_VARS_FILE | grep -q --exclude "#" True; then
#        echo " $1_install: set to True found in $VARS"
#        echo " continuing...."
#    else
#        echo "somthing went wrong to get here"
#        exit 1
#    fi
#fi

if [ "$REINSTALL" == "1" ]; then
    if [ $1 == "calibre-web" ]; then # role directory & installed marker differ
        sed -i -e '/^calibreweb/d' $IIAB_STATE_FILE
    elif [ $1 == "httpd" ]; then # role directory & installed marker differ
        sed -i -e '/^apache/d' $IIAB_STATE_FILE
    elif [ $1 == "osm-vector-maps" ]; then # role directory & installed marker differ
        sed -i -e '/^osm_vector_maps/d' $IIAB_STATE_FILE
    else
        sed -i -e "/^$1/d" $IIAB_STATE_FILE
    fi
fi

if [ $# -eq 2 ]; then
   export ANSIBLE_LOG_PATH="$2"
else
   export ANSIBLE_LOG_PATH="$CWD/iiab-debug.log"
fi

ansible -m setup -i $INVENTORY localhost ${ARGS} --connection=local | grep python
ansible-playbook -i $INVENTORY $PLAYBOOK ${ARGS} --connection=local -e "role_to_run=$1"