Make calendar more flexible

dotlib/generic-post/calendar.sh

@@ -1,32 +1,23 @@
-calendar-determine-holiday() {
-  local month day
-  read -r month day < <(date "+%m %d")
+read -rd "" cal_events <<'EOF'
+3,17,Saint Patrick's day,Happy,🍀
+10,31,Halloween,Have a spooky,🎃
+12,25,Christmas,Merry,🌲
+EOF
 
-  if (( 10#$month == 3 && 10#$day < 18 )); then
-    if (( 17 - 10#$day == 0 )); then
-      printf "Happy Saint Patrick's day!\n"
-    else
-      printf "Only %d days left until Saint Patrick's day!\n" "$(( 17 - 10#$day ))"
+if [[ -f ~/.events.csv ]]; then
+  cal_events=$(< ~/.events.csv)
+fi
+
+read -r cur_{month,day} < <(date "+%m %d")
+
+while IFS=, read -r ev_month ev_day ev celebrate sym; do
+  if (( 10#$cur_month == 10#$ev_month )); then
+    if (( 10#$cur_day < 10#$ev_day )); then
+      printf "Only %d days until %s!\n" "$(( 10#$ev_day - 10#$cur_day ))" "$ev"
+    elif (( 10#$cur_day == 10#$ev_day )); then
+      printf "%s %s!\n" "$celebrate" "${ev^}"
     fi
 
-    PS1_prompt_sym=🍀
-  elif (( 10#$month == 10 )); then
-    if (( 31 - 10#$day == 0 )); then
-      printf 'Have a spooky halloween!\n'
-    else
-      printf 'Only %d days left until Halloween!\n' "$(( 31 - 10#$day ))"
-    fi
-
-    PS1_prompt_sym=🎃
-  elif (( 10#$month == 12 && 10#$day < 26 )); then
-    if (( 25 - 10#$day == 0 )); then
-      printf 'Merry Christmas!\n'
-    else
-      printf 'Only %d days left until Christmas!\n' "$(( 25 - 10#$day ))"
-    fi
-
-    PS1_prompt_sym=🌲
+    PS1_prompt_sym=$sym
   fi
-}
-
-calendar-determine-holiday
+done <<< "$cal_events"