#-----------------------------------------------------------------------------
# /etc/rc.d/rc945.ow - Start-up                                   __FLI4LVER__
#
# Creation:     04.02.2009 kmw <news4kmw@web.de>
# Modification: 23.02.2015 Roland Franke
# Last Update:  $Id$
#-----------------------------------------------------------------------------
# Info: Fuse up by /etc/rc.d/rc180.ow.fuse

# Defaults
#----------
: ${OW_VERSION:='2.0.3'}
: ${OW_OPT_TITLE:='OWFS "1-Wire-Bus" '"$OW_VERSION"}
: ${OW_MENU_ITEM:='1-Wire-Bus'}
: ${OW_RIGHTS_SECTION:='ow'}
: ${OW_DEVICE_LIB:='/srv/www/include/ow-device.lib'}
: ${OW_REFRESH_FILE:='ow-refresh.cgi'}
: ${OW_REFRESH_TEMP:='/tmp/ow-refresh.tmp'}
: ${OW_REFRESH_INTERVAL:='10'}
: ${OW_INVERT_LEDS:='no'}
: ${OW_ALIAS_FILE:='/var/run/ow-alias.sed'}
: ${OW_CSS_FILE:='ow.css'}
: ${OW_MODULE_CONF_FILE:='/var/run/owfs.conf'}
: ${OW_LOG_DESTINATION:='3'}
: ${OW_LOG_LEVEL:='0'}
: ${OW_CACHE_SIZE:='0'}
: ${OW_TEMP_SCALE:='C'}
: ${OW_OWFS_GROUP_N:='0'}
: ${OW_OWFS_BINARY:='/usr/bin/owfs'}
: ${OW_OWFS_RUN:='yes'}
: ${OW_OWFS_PATH:='/mnt/1wire'}
: ${OW_OWFS_PID_FILE:='/var/run/owfs.pid'}
: ${OW_OWSHELL_BINARY:='/usr/bin/owserver'}
: ${OW_OWSHELL_RUN:='yes'}
: ${OW_OWSHELL_PORT:='4304'}
: ${OW_OWSHELL_PID_FILE:='/var/run/owsever.pid'}
: ${OW_OWHTTPD_BINARY:='/usr/bin/owhttpd'}
: ${OW_OWHTTPD_RUN:='yes'}
: ${OW_OWHTTPD_PORT:='8001'}
: ${OW_OWHTTPD_PID_FILE:='/var/run/owhttpd.pid'}
: ${OW_RRDTOOL_COLORS:='0000FF 0077FF 00FFFF 00FF77 00FF00 77FF00 FFFF00 FF7700 FF0000 FF0077 FF00FF 7700FF'}
: ${OW_USER_SCRIPT_STOP:='/var/lock/ow-userscript.stop'}
: ${OW_SCRIPT_WRAPPER:='/usr/local/bin/ow-script-wrapper.sh'}

create_symbolic_link ()
  {
  local target=$1
  local name=$2
  #--------------
  local file=`ls -1 $target | sed -n '$p'`
  if [ -n "$file" ]
  then
    if [ -z "$name" ]; then name=/usr/lib/`echo $file | sed 's|^.*/||;s|\.[0-9]*\.[0-9]*$||'`; fi
    if [ ! -e $name ]
    then
      ln -s $file $name
    else
      log_error "Warning: Cannot create link '$name', because file already exists."
    fi
  else
    log_error "Symbolic link target $target does not exist!"
  fi
  }

write_config_common ()
  {
  case $OW_LOG_DESTINATION in
    [0-3])  ;;
    off)    OW_LOG_DESTINATION=3;;
    mixed)  OW_LOG_DESTINATION=0;;
    stderr) OW_LOG_DESTINATION=2;;
    syslog) OW_LOG_DESTINATION=1;;
    *)      OW_LOG_DESTINATION=1;;
  esac
  case $OW_TEMP_SCALE in
    F) OW_TEMP_SCALE="Fahrenheit";OW_TEMP_UNIT="°F";;
    K) OW_TEMP_SCALE="Kelvin";    OW_TEMP_UNIT="K";;
    R) OW_TEMP_SCALE="Rankine";   OW_TEMP_UNIT="°Ra";;
    *) OW_TEMP_SCALE="Celsius";   OW_TEMP_UNIT="°C";;
  esac
  cat > $OW_MODULE_CONF_FILE << EOF
error_print = $OW_LOG_DESTINATION
error_level = $OW_LOG_LEVEL
format = f.i
cache_size = $OW_CACHE_SIZE
$OW_TEMP_SCALE
foreground
allow_root
EOF
  }

write_config_option ()
  {
  local variable=$1
  local option=$2
  #--------------
  if [ -n "$variable" -a -n "$option" ]
  then
    eval local value='$'$variable
    case "$value" in
      no|"") ;;
      yes)   echo "$option";;
      *)
        value=`echo "$value" | tr ' ' ','`
        echo "$option = $value"
      ;;
    esac
  fi
  }

write_config ()
  {
  local module=$1
  #--------------
  if [ ! -f $OW_MODULE_CONF_FILE ]; then write_config_common; fi
  if [ -n "$module" ]
  then
    local section=
    case $module in
      OWFS)    section="owfs: ";;
      OWSHELL) section="server: ";;
      OWHTTPD) section="http: ";;
      OWFTP)   section="ftp: ";;
      *)       section="";;
    esac
    local cf_path=`echo $OW_MODULE_CONF_FILE|sed 's|[^/]*$||'`
    if [ ! -d $cf_path ]; then mkdir -p -m 775 $cf_path; fi
    (
      # Devices
      local device_list="";
      if [ -z "`eval echo '$OW_'$module'_FAKE'`" -a -z "`eval echo '$OW_'$module'_TESTER'`" ]
      then
        local ioport=
        for ioport in `eval echo '$OW_'$module'_DEV'`
        do
          case $ioport in
            tty*|i2c-*)
              echo 'device = /dev/'$ioport
              device_list="$device_list$ioport "
            ;;
            usb*)
              echo "$ioport" | sed 's|usb\([0-9]\)|usb = \1|'
              device_list="$device_list$ioport "
            ;;
            *)
              oldIFS="$IFS"
              IFS=":"
              set -- $ioport
              IFS="$oldIFS"
              translate_ip_net $1
              if ! is_error
              then
                echo 'server = '$res':'$2
                device_list="$device_list$res:$2 "
              else
                log_error "Unhandled device type '$ioport' in OW_$module""_DEV."
              fi
            ;;
          esac
        done
        if [ -z "$device_list" ]
        then
          eval 'OW_'$module'_RUN'=no
          log_error "No valid devices available. $module cannot be started."
        fi
      else
        write_config_option 'OW_'$module'_FAKE'     'fake'
        write_config_option 'OW_'$module'_TESTER'   'tester'
      fi
      eval 'OW_'$module'_DEV'=$device_list
      write_config_option 'OW_'$module'_PORT'     'port'
      write_config_option 'OW_'$module'_PID_FILE' 'pid_file'
      write_config_option 'OW_'$module'_PATH'     'mountpoint'
      write_config_option 'OW_'$module'_READONLY' 'readonly'
     ) | sed 's|.*|'"$section"'&|' >> $OW_MODULE_CONF_FILE
  fi
  }

write_alias_file ()
  {
  if [ -f $OW_ALIAS_FILE ]; then rm $OW_ALIAS_FILE; fi
  local group_index=
  for group_index in `seq 1 $OW_OWFS_GROUP_N`
  do
    eval local group_name='$OW_OWFS_GROUP_'$group_index'_NAME'
    group_name=`make_sed_save "$group_name"`
    local port_index=
    for port_index in `eval seq 1 '$OW_OWFS_GROUP_'$group_index'_PORT_N'`
    do
      alias_ok=0
      eval local port_id='$OW_OWFS_GROUP_'$group_index'_PORT_'$port_index'_ID'
      eval local port_alias='$OW_OWFS_GROUP_'$group_index'_PORT_'$port_index'_ALIAS'
      port_alias=`make_sed_save "$port_alias"`
      # Wildcards
      local front=`echo "$port_id" | cut -d* -f1`
      if [ "$front" != "$port_id" ]
      then
        port_id="$front\([^/]*\)"`echo "$port_id" | cut -d* -f2-`
        port_alias="$port_alias\1"
        alias_ok=1
      fi
      echo "s|^/$port_id |/$group_name/$port_alias |" >> $OW_ALIAS_FILE
      if [ $alias_ok = "0" ] 
      then
        sensor_alias=`echo "$port_id" | cut -c 4-15`
        echo "$port_alias" >> /var/run/ow_$sensor_alias
      fi
    done
  done
  }

make_sed_save ()
  {
  local unsave=$@
  #--------------
  echo "$unsave" | sed 's|\\| |g;s:|:\\|:g;s|\&|\\\&|g;s|^[ ]*||;s|[ ]*$||'
  }

start_module ()
  {
  local module=$1
  #--------------
  if [ -n "$module" ]
  then
    if [ "`eval echo '$OW_'$module`" = yes ]
    then
      write_config "$module"
      if [ "`eval echo '$OW_'$module'_RUN'`" = yes ]
      then
        if  eval '$OW_'$module'_BINARY' -c $OW_MODULE_CONF_FILE &
        then
          echo "$module started."
        else
          log_error "Starting of $module failed."
        fi
      fi
    fi
  fi
  }

case $OPT_OW in
  yes)
    begin_script OPT_OW "starting OWFS ..."

#    create_symbolic_link /usr/lib/libfuse.so.*
#    create_symbolic_link /usr/lib/libulockmgr.so.*
#    create_symbolic_link /usr/lib/libow-*
#    create_symbolic_link /usr/lib/libusb-*

    if [ -f $OW_MODULE_CONF_FILE ]; then rm $OW_MODULE_CONF_FILE; fi

    local opt_module=
    for opt_module in OWFS OWSHELL OWHTTPD
    do
      if [ "`eval echo '$OW_'$opt_module`" = yes ]
      then
        case $opt_module in
          OWFS)
            # Link for Web Interface
            if [ -f /srv/www/admin/ow.cgi -a -f /usr/local/bin/httpd-menu.sh ]
            then
              /usr/local/bin/httpd-menu.sh add "ow.cgi" "1-Wire-Bus" "" ""
            fi
            # Check OWFS folder
            eval opt_path='$OW_'$opt_module'_PATH'
            if [ ! -d $opt_path ]; then /bin/mkdir -p -m 775 $opt_path; fi
            if [ -d $opt_path ]
            then
              start_module "$opt_module"
              write_alias_file
            else
              log_error "Cannot create path '$opt_path'."
            fi
          ;;
          *) start_module "$opt_module";;
        esac
      fi
    done

    # Write configuration file
    set | grep "^OW_" | sed '/^OW_OWFS_GROUP_.*/d' > /var/run/ow.conf

    # Start user script
    if [ -n "$OW_USER_SCRIPT" ]
    then
      if [ -f $OW_USER_SCRIPT ]
      then
        /bin/sh $OW_SCRIPT_WRAPPER &
        echo "User script started."
      else
        log_error "Cannot find user script '$OW_USER_SCRIPT'."
      fi
    fi

    end_script
  ;;
esac