#!/bin/bash
#
# config: 2 50
# @brief: Collect redundant OS information.

# shellcheck disable=SC1091
. "$DREPORT_INCLUDE/functions"

desc="Redundant firmware info"
file_name="redundant-os-release"

# Declare necessary dbus interfaces
dbus_object="xyz.openbmc_project.Software.BMC.Updater"
dbus_tree_command="busctl tree"
dbus_property_command="busctl get-property"
dbus_object_priority_method="xyz.openbmc_project.Software.RedundancyPriority"
dbus_object_priority="Priority"
dbus_object_version_method="xyz.openbmc_project.Software.Version"
dbus_object_version="Version"

# Declare an array to store the results of dbus command
read_array=()

IFS=$'\n' read -r -d '' -a read_array < <( eval "$dbus_tree_command" "$dbus_object" && printf '\0' )

array_length=${#read_array[@]}

# If there is only one FW image on the BMC, return then and there
if [ "$array_length" -lt 5 ]; then
    return "$SUCCESS"
fi

firmware1=$(echo "${read_array[3]}" | xargs)
firmware2=$(echo "${read_array[4]}" | xargs)

if [ -n "$firmware1" ]; then
    firmware1=${firmware1:3}
fi

if [ -n "$firmware2" ]; then
    firmware2=${firmware2:3}
fi

redundant_firmware=""
dbus_command="$dbus_property_command $dbus_object $firmware1 $dbus_object_priority_method \
    $dbus_object_priority"

# Get the priority of the image.
# The one with the highest prirority amongst the two is the backup one
firmware1_priority=$(eval "$dbus_command" | grep -w "1" | cut -d' ' -f 2)

if [ -n  "$firmware1_priority" ]; then
    dbus_command="$dbus_property_command $dbus_object $firmware1 $dbus_object_version_method \
        $dbus_object_version"
    redundant_firmware=$(eval "$dbus_command" | cut -d' ' -f 2-)
else
    dbus_command="$dbus_property_command $dbus_object $firmware2 $dbus_object_priority_method \
        $dbus_object_priority"
    firmware2_priority=$(eval "$dbus_command" | grep -w "1" | cut -d' ' -f 2)
    if [ -n "$firmware2_priority" ]; then
        dbus_command="$dbus_property_command $dbus_object $firmware2 $dbus_object_version_method \
            $dbus_object_version"
        redundant_firmware=$(eval "$dbus_command" | cut -d' ' -f 2-)
    fi
fi

if [ -n "$redundant_firmware" ]; then
    command="printf \"\nREDUNDANT_FW=%s\n\" \"\$redundant_firmware\""
    add_cmd_output "$command" "$file_name" "$desc"
else
    log_warnig "No redundant FW available"
fi