#!/bin/bash
#
# Fast way to browse documents stored in an archive.
#

# Parameters
BASENAME="`basename $0`"
DOCS="$HOME/data/doc"
LIST="$DOCS/.filelist"
ITEM="$1"
DATE="`date +%s`"
MAX_AGE="86400"

# Update the filelist
function __update_filelist {
  echo "Generating new filelist..."
  cd $DOCS && find . -not -path '*.git*' > $LIST
}

# Check
if [ -z "$ITEM" ]; then
  echo "usage: $BASENAME <item-name>"
  exit 1
elif [ ! -d "$DOCS" ]; then
  echo "missing $DOCS folder"
  exit 1
fi

# Check for filelist
if [ ! -e "$LIST" ]; then
  __update_filelist
  CHANGED="`date +%s`"
else
  CHANGED="`stat --printf='%Y\n' $LIST`"
fi

# Refresh lists older than $MAX_AGE
if ((($DATE - $CHANGED) >= $MAX_AGE)); then
  __update_filelist
fi

# Dispatch
#find $DOCS -iname "*$ITEM*" | head -1 | while read entry; do xdg-open "$entry"; done
grep -- "$ITEM" $LIST | while read entry; do
  echo "Opening $entry..."
  cd $DOCS && xdg-open "$entry"
done