#!/bin/bash

# Get script working directory
# (when called from a different directory)
WDIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >>/dev/null 2>&1 && pwd )"

if [ ! -s "$WDIR/config.sh" ] ; then
  echo " [E] No configuration found"
  exit 1;
fi
. "$WDIR/config.sh"

myYear=$(date "+%Y")
myMonth=$(date "+%m")
myDay=$(date "+%d")
lastYear=$(($(date +%Y)-1))

if [ ! -z $1 ] ; then
  myYear="$1"
fi

# genThumbs <SUBDIR>
genThumbs() {
  if [ -z $1 ] ; then
    echo " [W] No photo subdirectory provided"
    return 1;
  fi
  
  local thumbRoot="${piwiThumbRoot}/$1"
  local photoRoot="${piwiPhotoRoot}/$1"
  
  if [ ! -e ${photoRoot} ] ; then
    echo " [E] Photo root ${photoRoot} not found"
    exit 1;
  fi

  if [ ! -e ${thumbRoot} ] ; then
    if [ -w ${piwiThumbRoot} ] ; then
      # Thumb root of piwigo available just subdir missing
      echo " [I] Adding missing subdirectory $(basename $1) to $piwiThumbRoot"
      mkdir -p "$thumbRoot"
    else
      echo " [E] Thumbnail root ${thumbRoot} not found"
      exit 1;
    fi
  fi

  $WDIR/piwigo_thumbgen.sh "${photoRoot}" "${thumbRoot}"
}

# On the first day of the year generate last year's thumbnails for the last time
if [ $myMonth -eq 1 ] && [ $myDay -eq 1 ] ; then
  echo " [I] Generate $lastYear thumbnails for the last time"
  echo "     Happy new year $(date +%Y), I guess ;)"
  genThumbs "$lastYear"
fi
genThumbs "$myYear"

$WDIR/piwirefresh.sh