person_rank

#!/bin/bash
# written by Ofek Nacht
# 18/12/2022
#
# tweets person rank
file=$( cat /home/onacht/my_scripts/tweets )
names=$( echo "$file" | awk '{print$1}' )    # tweets writers
tweets=$( echo "$file" | awk -F "\t" '{print$2}' )
namesarr=($names)  # all the writers array
sumarr=()          # array for super rank calc
point_worth=()     # array for every writer tag value
allment=""
finle=""

# function that greps who was mentioned in the tweets (all the tags )
# looping through every name
mention() {
for (( i=0; i<${#namesarr[@]}; i++ ))
do
  mention=$( echo "$tweets" | grep -own "${namesarr[$i]}" )
  allment+="$mention "  #every tagged person
done
}

# function that fixes the display 
# of tweeter writers and tagged
tweet_writer() {
for (( i=0; i<${#namesarr[@]}; i++ ))
do
  sumarr[i]=0
  d=$(( $i + 1 ))
  newall=$( echo "$allment" | awk '{RS=" "; print}' | sed -e "s/"$d"/${namesarr[$i]}/g; s/:/ has mentioned /g" ) 
  finle+="$( echo "$newall" | grep -v [0-9] ) \n "
done
}

# how many people each writer  mentioned and what every pointer is worth (base rating is 1 )
pointers() {
for (( i=0; i<${#namesarr[@]}; i++ ))
do
  point=$( echo -e "$finle" | sed 's/^ //g' | head -n -1 | awk '{print$1}' | grep ${namesarr[$i]} )
  num_points=$( echo $point | wc -w )   #checking multiplay tagged
  point_worth[i]=$( bc -l <<< 1/$num_points )
done
}

# fuction that crosses values to index
# and calculate super rank using values from calc func
array_index() {
# looping in order to determine pointer value for each man
# checking mentioning index
for ((j=0; j<${#namesarr[@]}; j++ ))
do
   if [[ ${namesarr[$j]} == $give ]]
   then
       point_give=${point_worth[$j]}
   fi
done
# using the previous loop 
# checking mentioned index 
for ((k=0; k<${#namesarr[@]}; k++ ))
do
   if [[ ${namesarr[$k]} == $get ]]
   then
       sumarr[$k]=$( bc -l <<< ${sumarr[$k]}+$point_give )
   fi
done
}

# loopig through all of the people who was mentiond
# including double mentions
calc() {
allment_line=$( echo -e "$finle" | sed 's/^ //g' | head -n -1 | wc -l )
# looping through each line in order to get
# the tweet writter and the tagged person
for (( i=1; i<=$allment_line; i++ ))
do
  one_line=$( echo -e "$finle" | sed 's/^ //g' | head -n -1 | sed "$i"'q;d' )
  give=$( echo $one_line | awk '{print$1}' )
  get=$( echo $one_line | awk '{print$4}' )
# calculating superrank using function
  array_index
done
}

# sorting superrank
sort_arr() {
for (( i=0; i<${#sumarr[@]}; i++ )) 
do
  for (( j=$i + 1; j<${#sumarr[@]}; j++ ))
  do
    if (( $(echo "${sumarr[$i]} < ${sumarr[$j]}" | bc -l ) )) # switching positions if number[0] less then number[1]
    then
      a=${sumarr[$i]}     # sorting sum array
      b=${sumarr[$j]}
      c=${namesarr[$i]}   # sorting name array
      d=${namesarr[$j]}
      sumarr[$i]=$b
      sumarr[$j]=$a
      namesarr[$i]=$d
      namesarr[$j]=$c
    fi
  done
done
}

# main
mention
tweet_writer
pointers
calc
sort_arr
k=1

# loop through and show leaderboard 
for (( i=0; i<${#sumarr[@]}; i++ ))
do
  echo "${namesarr[$i]} ranked $k with a page rank of ${sumarr[$i]}"
  (( k++ ))
done