#!/bin/bash

#a much cleaner implemenation of fakemurk's crossystem.sh 

crossystem_old=/tmp/crossystem_old
crossystem_dict="cros_debug 0
dev_boot_legacy 0
dev_boot_signed_only 1
dev_boot_usb 0
devsw_boot 0
devsw_cur 0
block_devmode 1
mainfw_act A
mainfw_type normal
recovery_reason 0
recovery_request 0
recoverysw_boot 0
recoverysw_cur 0"

dict_set() {
  local newline=$'\n'
  crossystem_dict="$crossystem_dict$newline$1 $2"
}

dict_get() {
  echo "$crossystem_dict" | grep "^$1 " | cut -d " " -f 2-
}

parse_arg() {
  local arg="$1"

  #set values mode - pass this through without changes
  if [[ "$arg" =~ "=" ]]; then
    $crossystem_old "$@"

  #search value mode
  elif [[ "$arg" =~ "?" ]]; then
    key=$(echo $arg | cut -d "?" -f 1)
    query=$(echo $arg | cut -d "?" -f 2)
    if ! [ "$(dict_get $key)" = "$query" ]; then
      exit 1
    fi
  
  #get value mode
  elif [ "$(dict_get $arg)" ]; then
    printf "$(dict_get $arg)"
  
  #value not found - print help and exit
  else
    $crossystem_old --help
    exit 1
  fi
}

crossystem_out="$($crossystem_old)"
#crossystem_out=$(cat data/crossystem.txt)
  
#add crossystem output to the dict
while IFS= read -r line; do
  line=$(echo $line | cut -d "#" -f 1)
  key=$(echo $line | cut -d "=" -f 1 | xargs)
  value=$(echo $line | cut -d "=" -f 2 | xargs)
  if [ -z "$(dict_get $key)" ]; then
    dict_set "$key" "$value"
  fi
done <<< "$crossystem_out"

#crossystem called with no arguments, print out all properties
if [ -z "$1" ] || [ "$1" = "--all" ]; then
  while IFS= read -r line; do
    key=$(echo $line | cut -d " " -f 1)
    value=$(echo $line | cut -d " " -f 2-)
    echo "$key = $value"
  done <<< "$crossystem_dict"
  
  exit 0
fi

for arg in "$@"; do
  parse_arg $arg
done