#!/bin/bash

files=$(find examples -name '*.rb' | sort)
outdir="src/examples"
index="$outdir/index.md"
mkdir -p $outdir

echo "---" > $index
echo "prev: 'Tapfall | Changelog'" >> $index
echo "---" >> $index
echo "" >> $index
echo "# Examples" >> $index
echo "" >> $index

for file in $files; do
  filename=$(basename "$file")
  title=$(basename "$file" .rb)
  output="$outdir/$title.md"

  echo "---" > $output
  echo "pageClass: 'examples-page'" >> $output
  echo "---" >> $output
  echo "" >> $output
  echo "# $filename" >> $output
  echo "" >> $output

  description=$(cat $file | tail +3 | awk '/^#/ { print; next } { exit }' | sed -Ee 's/^# ?//')
  echo "$description" >> $output

  code=$(cat $file | tail +3 | awk 'started { print; next } !/^#/ { end_hash = 1 } /^[[:space:]]*$/ { next } end_hash { started = 1; print }')

  echo "" >> $output
  echo "\`\`\`rb" >> $output
  echo "$code" | grep -v "'bundler/setup'" >> $output
  echo "\`\`\`" >> $output

  echo "- [$filename](/examples/$title)" >> $index
done