#!/bin/bash
FILE=/tmp/$RANDOM
TOP=0
LEFT=3

# Additional heading space
HEADINGNEXTPAGE=28
HEADINGLEFT=1
HEADINGRIGHT=15

# GPG Space
NEXTPAGE=48
NEXTFIELDBOTTOM=7
NEXTFIELDRIGHT=25
MAXLENGTH=22

if [ $# -eq 0 ]; then
  echo -e "$0: Syntax:\n$0 FIELD GPG FINGERPRINT WITH SPACES\n\nExample:\n$0 7 1234 5678 1234 1234 1234 1234 1234 1234 1234 ABCD\n\n\nFields:
  ==================
  | 0 | 1 || 6 | 7 |
  |---|---||---|---|
  | 2 | 3 || 8 | 9 |
  |---|---||---|---|
  | 4 | 5 || 10| 11|
  ==================
  "
  exit 1
fi

PAGE=$(($1 / 6))
FIELD=$(($1 % 6))

shift 1


echo "PAGE: $PAGE, FIELD: $FIELD"



function moveDown() {
  for((i=0; i<$(($FIELD / 2)); i++)); do
    for((j=0; j<$NEXTFIELDBOTTOM; j++)); do
      printf "\n" >> $FILE
    done
  done
}

function makeNewline() {
  for((i=0; i<$1; i++)); do
    printf "\n" >> $FILE
  done
}

function makeLeft() {
  for((i=0; i<$1; i++)); do
    printf " " >> $FILE
  done
}


function heading() {
  moveDown


  if [ $(($FIELD % 2)) -eq 0 ]; then
    SPACE=$HEADINGLEFT
  else
    SPACE=$HEADINGRIGHT
  fi

  if [ $PAGE -eq 1 ]; then
    makeLeft $HEADINGNEXTPAGE
  fi

  makeLeft $LEFT
  makeLeft $SPACE

  bigLetters $FILE
  printf "GPG" >> $FILE
  resetLetters $FILE
  printf "\n" >> $FILE
}

function insertFP() {
  if [ $(($FIELD % 2 )) -eq 0 ]; then
    SPACE=0
  else
    SPACE=$NEXTFIELDRIGHT
  fi

  smallLetters $FILE
  if [ $PAGE -eq 1 ]; then
    makeLeft $NEXTPAGE
  fi
  makeLeft $LEFT
  makeLeft $(($SPACE + 2))
  printf "$1 $2 $3 $4" >> $FILE
  resetLetters $FILE
  printf "\n" >> $FILE
  shift 4

  smallLetters $FILE
  if [ $PAGE -eq 1 ]; then
    makeLeft $NEXTPAGE
  fi
  makeLeft $LEFT
  makeLeft $(($SPACE + 2))
  printf "$1 $2 $3 $4" >> $FILE
  resetLetters $FILE
  printf "\n" >> $FILE
  shift 4
  
  smallLetters $FILE
  if [ $PAGE -eq 1 ]; then
    makeLeft $NEXTPAGE
  fi
  makeLeft $LEFT
  makeLeft $(($SPACE + 2))
  printf "$1 $2" >> $FILE
  resetLetters $FILE
  printf "\n" >> $FILE
  shift 2

  smallLetters $FILE
  if [ $PAGE -eq 1 ]; then
    makeLeft $NEXTPAGE
  fi
  makeLeft $LEFT
  makeLeft $(($SPACE + 2))

  if [ -n "$EVENT" ]; then
    printf "$EVENT, $(date -I)" >> $FILE
  else
    printf "$(date -I)" >> $FILE
  fi
}

source ../include/nixdorf
init

makeNewline $TOP
heading
insertFP $@

printFile $FILE
rm $FILE