# Define global functions
# This function applies Dell's default dynamic fan control profile
function apply_Dell_fan_control_profile () {
  # Use ipmitool to send the raw command to set fan control to Dell default
  ipmitool -I $IDRAC_LOGIN_STRING raw 0x30 0x30 0x01 0x01 > /dev/null
  CURRENT_FAN_CONTROL_PROFILE="Dell default dynamic fan control profile"
}

# This function applies a user-specified static fan control profile
function apply_user_fan_control_profile () {
  # Use ipmitool to send the raw command to set fan control to user-specified value
  ipmitool -I $IDRAC_LOGIN_STRING raw 0x30 0x30 0x01 0x00 > /dev/null
  ipmitool -I $IDRAC_LOGIN_STRING raw 0x30 0x30 0x02 0xff $HEXADECIMAL_FAN_SPEED > /dev/null
  CURRENT_FAN_CONTROL_PROFILE="User static fan control profile ($DECIMAL_FAN_SPEED%)"
}

# Retrieve temperature sensors data using ipmitool
# Usage : retrieve_temperatures $IS_EXHAUST_TEMPERATURE_SENSOR_PRESENT $IS_CPU2_TEMPERATURE_SENSOR_PRESENT
function retrieve_temperatures () {
  if (( $# != 2 ))
  then
    printf "Illegal number of parameters.\nUsage: retrieve_temperatures \$IS_EXHAUST_TEMPERATURE_SENSOR_PRESENT \$IS_CPU2_TEMPERATURE_SENSOR_PRESENT" >&2
    return 1
  fi
  local IS_EXHAUST_TEMPERATURE_SENSOR_PRESENT=$1
  local IS_CPU2_TEMPERATURE_SENSOR_PRESENT=$2

  local DATA=$(ipmitool -I $IDRAC_LOGIN_STRING sdr type temperature | grep degrees)

  # Parse CPU data
  local CPU_DATA=$(echo "$DATA" | grep "3\." | grep -Po '\d{2}')
  CPU1_TEMPERATURE=$(echo $CPU_DATA | awk '{print $1;}')
  if $IS_CPU2_TEMPERATURE_SENSOR_PRESENT
  then
    CPU2_TEMPERATURE=$(echo $CPU_DATA | awk '{print $2;}')
  else
    CPU2_TEMPERATURE="-"
  fi

  # Parse inlet temperature data
  INLET_TEMPERATURE=$(echo "$DATA" | grep Inlet | grep -Po '\d{2}' | tail -1)

  # If exhaust temperature sensor is present, parse its temperature data
  if $IS_EXHAUST_TEMPERATURE_SENSOR_PRESENT
  then
    EXHAUST_TEMPERATURE=$(echo "$DATA" | grep Exhaust | grep -Po '\d{2}' | tail -1)
  else
    EXHAUST_TEMPERATURE="-"
  fi
}

function enable_third_party_PCIe_card_Dell_default_cooling_response () {
  # We could check the current cooling response before applying but it's not very useful so let's skip the test and apply directly
  ipmitool -I $IDRAC_LOGIN_STRING raw 0x30 0xce 0x00 0x16 0x05 0x00 0x00 0x00 0x05 0x00 0x00 0x00 0x00 > /dev/null
}

function disable_third_party_PCIe_card_Dell_default_cooling_response () {
  # We could check the current cooling response before applying but it's not very useful so let's skip the test and apply directly
  ipmitool -I $IDRAC_LOGIN_STRING raw 0x30 0xce 0x00 0x16 0x05 0x00 0x00 0x00 0x05 0x00 0x01 0x00 0x00 > /dev/null
}

# Returns :
# - 0 if third-party PCIe card Dell default cooling response is currently DISABLED
# - 1 if third-party PCIe card Dell default cooling response is currently ENABLED
# - 2 if the current status returned by ipmitool command output is unexpected
# function is_third_party_PCIe_card_Dell_default_cooling_response_disabled() {
#   THIRD_PARTY_PCIE_CARD_COOLING_RESPONSE=$(ipmitool -I $IDRAC_LOGIN_STRING raw 0x30 0xce 0x01 0x16 0x05 0x00 0x00 0x00)

#   if [ "$THIRD_PARTY_PCIE_CARD_COOLING_RESPONSE" == "16 05 00 00 00 05 00 01 00 00" ]; then
#     return 0
#   elif [ "$THIRD_PARTY_PCIE_CARD_COOLING_RESPONSE" == "16 05 00 00 00 05 00 00 00 00" ]; then
#     return 1
#   else
#     echo "Unexpected output: $THIRD_PARTY_PCIE_CARD_COOLING_RESPONSE" >&2
#     return 2
#   fi
# }

# Prepare traps in case of container exit
function gracefull_exit () {
  apply_Dell_fan_control_profile
  enable_third_party_PCIe_card_Dell_default_cooling_response
  echo "/!\ WARNING /!\ Container stopped, Dell default dynamic fan control profile applied for safety."
  exit 0
}

# Helps debugging when people are posting their output
function get_Dell_server_model () {
  IPMI_FRU_content=$(ipmitool -I $IDRAC_LOGIN_STRING fru 2>/dev/null) # FRU stands for "Field Replaceable Unit"

  SERVER_MANUFACTURER=$(echo "$IPMI_FRU_content" | grep "Product Manufacturer" | awk -F ': ' '{print $2}')
  SERVER_MODEL=$(echo "$IPMI_FRU_content" | grep "Product Name" | awk -F ': ' '{print $2}')
}