#!/bin/zsh

read -r JSON;

TASK_PARENT_UUID=$(echo "$JSON" | jq -r '.parent')
if [[ "$TASK_PARENT_UUID" != "null" ]]; then
    TASK_RECUR=$(echo "$JSON" | jq -r '.recur')
    IMASK=$(echo $JSON | jq -r '.imask')
    
    case $TASK_RECUR in
        "daily")
            COUNTER="$IMASK days"
            ;;
        "weekly")
            COUNTER="$IMASK weeks"
            ;;
        "monthly")
            COUNTER="$IMASK months"
            ;;
        "yearly")
            COUNTER="$IMASK years"
            ;;
        "weekdays")
            COUNTER="$(( $IMASK + ( ($IMASK / 5) * 2 ) )) days"
            ;;
        *d)
            if [[ "$TEST" =~ ^[0-9]+d$ ]]; then
                COUNTER="$(( $IMASK * ${TASK_RECUR%d})) days"
            fi
            ;;
    esac

    TASK_ALARM=$(echo "$JSON" | jq -r '.ALARM')
    if [[ "$TASK_ALARM" != "null" ]]; then
        # Convert to ISO 8601
        TASK_ALARM=$(echo $TASK_ALARM | _transform_tw_dates_to_iso_)

        NEW_ALARM_DATE=$(date -d "$TASK_ALARM $COUNTER" +'%Y-%m-%dT%H:%M:%S')
        JSON=$(echo "$JSON" | jq -r --arg NEW_ALARM_DATE "$NEW_ALARM_DATE" '.ALARM = $NEW_ALARM_DATE')
    fi
fi

echo $JSON | jq -c

exit 0