#!/bin/sh
set -eu
type agenda >/dev/null

if [ "${AGENDA_EXTENSION:-}" != "xit" ]; then
    exit
fi

# Capitalize the title.
echo "$AGENDA_NAME $AGENDA_DATE" | awk '{print toupper(substr($0,0,1))tolower(substr($0,2))}'

if [ -n "${AGENDA_IS_BACKLOG:-}" ]; then
    exit
fi

# Carry over open tasks from the last agenda xit file.
if [ -e "$AGENDA_LAST" ] && [ "${AGENDA_LAST#*.}" = "xit" ]; then
    line=0
    while IFS= read -r REPLY; do
        line=$(( line + 1 ))
        case ${state:-} in
            "open_task")
                case $REPLY in
                    "[ ] "*|"[@] "*|"[?] "*|"    "*)
                        # Append indented lines to open tasks.
                        echo "$REPLY"
                        ;;
                    *)
                        unset state
                        ;;
                esac
                ;;
            *)
                case $REPLY in
                    "[ ] "*|"[@] "*|"[?] "*)
                        # Carry over group heading with open tasks.
                        if [ -n "${header:-}" ]; then
                            echo
                            echo "$header"
                            unset header
                        fi
                        state="open_task"
                        echo "$REPLY"
                        ;;
                    [a-z]*|[A-Z]*)
                        # Skip the first heading (assumed to be the generated
                        # title of the agenda note).
                        if [ $line -gt 1 ]; then
                            header=$REPLY
                        fi
                        ;;
                esac
                ;;
        esac
    done < "$AGENDA_LAST"
fi