canonical datetime and some todos

src/main.sh

@@ -236,6 +236,47 @@ __list() {
   #  LC_ALL=c xargs -I {} date -d "{}" +"%a %e %b %Y"
 }
 
+__canonical_datetime() {
+  s="$1"
+  shift
+  t=$(date -d "@$s" +"%R")
+  dfmt="$*%e %b %Y"
+  if [ "$t" != "00:00" ]; then
+    dfmt="$dfmt %Y %R %Z"
+  fi
+  date -d "@$s" +"$dfmt"
+}
+
+__edit() {
+  start=$(__canonical_datetime "$1")
+  end=$(__canonical_datetime "$2")
+  fpath="$3"
+  # Use $start $end and $fpath
+  summary=$(awk -v field="SUMMARY" "$AWK_GET" "$fpath")
+  description=$(awk -v field="DESCRIPTION" "$AWK_GET" "$fpath")
+  filetmp=$(mktemp --suffix='.md')
+  (
+    echo "::: |> $start"
+    echo "::: <| $end"
+    echo "# $summary"
+    echo ""
+    echo "$description"
+  ) >"$filetmp"
+  checksum=$(cksum "$filetmp")
+  $EDITOR "$filetmp" >/dev/tty
+
+  # Update only if changes are detected
+  if [ "$checksum" != "$(cksum "$filetmp")" ]; then
+    # TODO: finish implementation
+    echo "going to update..."
+    read -r tmp
+    #file_new="$filetmp.ics"
+    #awk "$AWK_UPDATE" "$filetmp" "$file" >"$file_new"
+    #mv "$file_new" "$file"
+  fi
+  rm "$filetmp"
+}
+
 if [ -z "${APPROX_DATA_FILE:-}" ]; then
   APPROX_DATA_FILE=$(mktemp)
   __load_approx_data >"$APPROX_DATA_FILE"
@@ -247,6 +288,13 @@ if [ -z "${WEEKLY_DATA_FILE:-}" ]; then
   export WEEKLY_DATA_FILE
 fi
 
+if [ "${1:-}" = "--new" ]; then
+  # todo: implement
+  env >/dev/tty
+  echo "$*" >/dev/tty
+  read -r tmp
+fi
+
 if [ "${1:-}" = "--preview" ]; then
   hour=$(echo "$2" | cut -d '|' -f 1)
   start=$(echo "$2" | cut -d '|' -f 2)
@@ -254,18 +302,8 @@ if [ "${1:-}" = "--preview" ]; then
   fpath=$(echo "$2" | cut -d '|' -f 4 | sed "s/ /|/g")
   if [ -n "$hour" ] && [ -n "$fpath" ]; then
     fpath="$ROOT/$fpath"
-    timestart=$(date -d "@$start" +"%R")
-    timeend=$(date -d "@$end" +"%R")
-    dfmt="%a %e %b %Y"
-    if [ "$timestart" != "00:00" ]; then
-      dfmt="$dfmt %Y %R %Z"
-    fi
-    start=$(date -d "@$start" +"$dfmt")
-    dfmt="%a %e %b %Y"
-    if [ "$timeend" != "00:00" ]; then
-      dfmt="$dfmt %Y %R %Z"
-    fi
-    end=$(date -d "@$end" +"$dfmt")
+    start=$(__canonical_datetime "$start" "%a ")
+    end=$(__canonical_datetime "$end" "%a ")
     echo "${GREEN}From: ${OFF}${CYAN}$start${OFF}"
     echo "${GREEN}To:   ${OFF}${CYAN}$end${OFF}"
     echo ""
@@ -293,7 +331,9 @@ if [ "${1:-}" = "--day" ]; then
         --with-nth='{5}' \
         --accept-nth='1,2,3,4' \
         --preview="$0 --preview {}" \
-        --bind="backspace:first+accept"
+        --bind="backspace:first+accept" \
+        --bind="ctrl-n:become($0 --new ${FZF_NTH:-})" \
+        --bind="ctrl-s:execute($SYNC_CMD ; printf 'Press <enter> to continue.'; read -r tmp)"
   )
   hour=$(echo "$selection" | cut -d '|' -f 1)
   start=$(echo "$selection" | cut -d '|' -f 2)
@@ -302,8 +342,9 @@ if [ "${1:-}" = "--day" ]; then
   if [ -n "$fpath" ]; then
     fpath="$ROOT/$fpath"
     # TODO: Go on edit file
+    __edit "$start" "$end" "$fpath"
   elif [ -n "$hour" ]; then
-    # TODO Go on add entry for hour
+    # TODO: Go on add entry for hour
     echo "Add entry for hour $hour"
   fi # Else: continue
 fi