#!/bin/bash
# fix php errors
export LANG="en_US.UTF-8"
export PATH=/usr/bin:/usr/sbin:/bin:/sbin
TMPFILE=$(mktemp /tmp/php_extensions.XXXXX)

# print error message
print_error() {
  msg=$1
  echo "{\"changed\":false,\"failed\":true,\"msg\":\"$msg\"}"
  [[ -f $TMPFILE ]] && rm -f $TMPFILE
  exit 1
}

# print timezone info
print_changed() {
  msg=$1

  echo "{\"changed\":true,\"msg\":\"$msg\"}"
  [[ -f $TMPFILE ]] && rm -f $TMPFILE

  exit 0
}

print_notchanged() {
  msg=$1

  echo "{\"changed\":false,\"msg\":\"$msg\"}"
  [[ -f $TMPFILE ]] && rm -f $TMPFILE

  exit 0
}


# get ansible options
source ${1}

# default values
php_include_dir=/etc/php.d
[[ -z "$state" ]] && state=duplicates
[[ ! -d $php_include_dir ]] && print_notchanged "Not found $php_include_dir"


# php -m
# PHP Warning:  Module 'mcrypt' already loaded in Unknown on line 0
php -m > $TMPFILE 2>&1
DUBLICATE_MODULES=$(cat $TMPFILE | \
    egrep -o "Module '\S+' already loaded" | \
    awk '{print $2}' | sed -e "s/'//g;")
MODULES_CHANGED=
MODULES_UNCHANGED=
if [[ -n $DUBLICATE_MODULES ]]; then
    for mod in $DUBLICATE_MODULES; do
        php_inis=$(find /etc/php.d/ -maxdepth 1 -type f -name "*.ini" \
            -exec grep -H "^\s*extension=$mod" '{}' ';' | \
            awk -F':' '{print $1}')
        if [[ -n $php_inis ]]; then
            MODULES_CHANGED="$MODULES_CHANGED $mod"

            remove_files_cnt=0
            remove_files=
            first_file=
            cnt=0
            for file in $php_inis; do
                cnt=$(( $cnt + 1 ))
                [[ -z $first_file ]] && first_file=$file
                # file /etc/php.d/30-mcrypt.ini is not owned by any package
                rpm -qf $file > $TMPFILE 2>&1
                if [[ $? -gt 0 ]]; then
                    remove_files_cnt=$(( $remove_files_cnt + 1 ))
                    remove_files=$remove_files" $file"
                fi
            done

            if [[ ( $remove_files_cnt -gt 0 ) ]]; then
                if [[ $remove_files_cnt -lt $cnt ]]; then
                    rm -f $remove_files
                else
                    echo -n > $first_file
                fi
            else
                echo -n > $first_file
            fi
        else
            MODULES_UNCHANGED="$MODULES_UNCHANGED $mod"
        fi
    done
    if [[ -n $MODULES_CHANGED ]]; then
        MESS="Fix dublicates for $MODULES_CHANGED"
    fi
    if [[ -n $MODULES_UNCHANGED ]]; then
        if [[ -n $MESS ]]; then
            MESS=$MESS"; Cannot fix $MODULES_UNCHANGED"
        else
            MESS="Cannot fix $MODULES_UNCHANGED"
            print_error "$MESS"
        fi
    fi
    print_changed "$MESS"
else
    print_notchanged "No dublicates found for php-modules."
fi