#!/bin/bash

# define default project parameters.
prj=null
ver=1
rev=0

# source the project parameter file.
source proj

# write a very loud confirmation request to the terminal, and read back a
# response from the user.
echo -n "*** ARE YOU SURE YOU WANT TO WIPE THE CURRENT BOM??? [yes/NO] "
read confirmation

# check if the response of the user was not precisely 'yes'.
if [ ! "${confirmation}" == "yes" ]; then
  # nope. avoid trashing the current board design.
  echo "cancelling... later tater."
  exit 0
fi

# define working variables.
dones=""
pages=$(ls *.sch)

# remove the bom output files.
rm -f ${prj}-bom-long.csv ${prj}-bom-short.csv

# loop through the pages of the schematic.
for page in ${pages}; do
  # output a header for the schematic page.
  echo "# ${page}:" >> ${prj}-bom-long.csv
  echo "# --------------------------------------------" >> ${prj}-bom-long.csv

  # get a unique list of parts from the current schematic page.
  parts=$(grep ^refdes= ${page} | cut -f 2 -d = | sort -u)

  # loop through the list of part numbers.
  for part in ${parts}; do
    # check if the part number has been mentioned before.
    if [ "$(echo ${dones} | grep ${part})" == "" ]; then
      # parse a line of text from the schematic page.
      line=$(awk -F '=' -v part=${part} -f ../../scripts/bom.awk ${page} | \
             sort -u)

      # print a line of output to the long bill of materials.
      echo ${line} >> ${prj}-bom-long.csv

      # add the part to the mentioned list.
      dones="${dones} ${part}"
    fi
  done

  # print a line of spacing to the long bill of materials.
  echo >> ${prj}-bom-long.csv
done

# part the long bill of materials for a unique list of part numbers.
parts=$(awk -F ',' 'NF == 3 {print $3;}' ${prj}-bom-long.csv | sort -u)

# loop through the list of part numbers.
for part in ${parts}; do
  # count the number of occurrences of the part number in the long bom.
  count=$(awk -F ',' -v part=${part} '$3 ~ part' ${prj}-bom-long.csv | wc -l)

  # print a line of output to the short bill of materials.
  echo "\"${count}\",${part}" >> ${prj}-bom-short.csv
done

# sync the filesystem with the disks.
sync