#!/bin/sh

. "$_EXEC/cgilite/cgilite.sh"
. "$_EXEC/tools.sh"
. "$_EXEC/acl.sh"

LANGUAGES='' glob="/" depth=-1
while [ $# -gt 0 ]; do case $1 in
  --system) glob_system_pages=true; shift 1;;
  :*) LANGUAGES="${LANGUAGES}${LANGUAGES:+ }${1#:}"; shift 1;;
  --depth) depth="$2"; shift 2;;
  *) glob="$1"; shift 1;;
esac; done

page='' page_abs='' ostamp='' odate='' lstamp='' ldate='' row='' rowstate=''

printf '<table class="macro changes"><thead>\n<th>Page</th>'
for l in $LANGUAGES; do printf '<th>%s</th>' "$l"; done
printf '\n</thead><tbody>\n'

page_glob "$glob" "$depth" |while read page; do
  page_abs="$(page_abs "$page")"
  acl_read "${page_abs}" || continue

  read ostamp odate <<-EOF
	$(git -C "$_DATA" log --pretty="format:%at %ai" -- "pages${page_abs}#page.md")
	EOF
  row="<td><a href=\"$(HTML "$page")\">$(HTML "$page")</a><span class=\"date\">${odate%% +*}</span></td>"
  rowstate=''
 
  for l in $LANGUAGES; do
    if [ -f "${_DATA}/pages/${page}:${l}/#page.md" ]; then
      read lstamp ldate <<-EOF
	$(git -C "$_DATA" log --pretty="format:%at %ai" -- "pages$(page_abs "${page_abs}:${l}")/#page.md")
	EOF
      if [ $lstamp -lt $ostamp ] 2>&-; then
        row="${row}<td class=\"outdated\"><a href=\"$(HTML "${page}:${l}")\">outdated</a><span class=\"date\">${ldate%% +*}</span></td>"
        [ "$rowstate" = "${rowstate%*outdated*}" ] && rowstate="${rowstate}${rowstate:+ }outdated"
      else
        row="${row}<td class=\"current\" ><a href=\"$(HTML "${page}:${l}")\">current</a ><span class=\"date\">${ldate%% +*}</span></td>"
        [ "$rowstate" = "${rowstate%*current*}" ] && rowstate="${rowstate}${rowstate:+ }current"
      fi
    else
      row="${row}<td class=\"missing\"><a href=\"$(HTML "${page}:${l}")\">missing</a></td>"
      [ "$rowstate" = "${rowstate%*missing*}" ] && rowstate="${rowstate}${rowstate:+ }missing"
    fi
  done

  printf '<tr class="%s">%s</tr>\n' "$rowstate" "$row"
done

printf '</tbody></table>'