#!/bin/sh
# Auto generates stats article.

echo "making stats"

FILE_NAME="wiki_stats.md"

printf "# LRS Wiki Stats\n\nThis is an autogenerated article holding stats about this wiki.\n\n" > $FILE_NAME

printf -- "- number of articles: " >> $FILE_NAME
ls *.md | wc -l >> $FILE_NAME

printf -- "- number of commits: " >> $FILE_NAME
git rev-list --count --all >> $FILE_NAME

printf -- "- total size of all texts in bytes: " >> $FILE_NAME
cat *.md | wc -c >> $FILE_NAME

printf -- "- total number of lines of article texts: " >> $FILE_NAME
cat *.md | wc -l >> $FILE_NAME

printf -- "- number of script lines: " >> $FILE_NAME
cat *.sh | wc -l >> $FILE_NAME

printf "\nlongest articles:\n\n" >> $FILE_NAME
ls -1hSs *.md | head -n 20 | sed "s/ *\([^ ]*\) \+\([^ ]*\)\.md/- [\2](\2.md): \1/g" >> $FILE_NAME
printf "\n" >> $FILE_NAME

printf "top 50 5+ letter words:\n\n" >> $FILE_NAME
cat *.md | sed "s/([^ ]\+\.md/ /g" | tr -cs "[:alpha:]" "\n" | \
  sed -r "/^.{,4}$/d" | tr "A-Z" "a-z" | sort | uniq -c | sort -nr | \
  head -n 50 | sed "s/ \+\([^ ]*\) \+\([^ ]*\)$/- \2 (\1)/g" >> $FILE_NAME
printf "\n" >> $FILE_NAME

printf "latest changes:\n\n\`\`\`\n" >> $FILE_NAME
git log --name-only | head -n 50 | grep "Date:\|.*\.md" | sed "s/\([^ ]*\.md\)/  \1/g" >> $FILE_NAME
printf "\`\`\`\n" >> $FILE_NAME

printf "\nmost wanted pages:\n\n" >> $FILE_NAME
./most_wanted.sh >> $FILE_NAME
printf "\n" >> $FILE_NAME