jrnl

#!/usr/bin/env bash
# This is a shell script to automate the process of creating day-based
# journal/diary entries

# Set some variables for use later
JRNLUID="$(date +%F)"
JRNLPATH="${HOME}/Sync/Journal"
FULLDATE="$(date '+%A, %B %d %Y')"
ENTRYTIME="$(date '+%I:%M %p')"

# Define some help text
# TODO: Expand the help text
HELP="Usage: jrnl new|edit"

# If the user supplied "--help", then provide help text
if [ "$1" = "--help" ]; then
    echo -e "${HELP}\n"
    exit 0
fi

# Set certain OS-specific variables
# TODO: Add support for other editors
case "${OSTYPE}" in
    darwin*)
        CODE="/usr/local/bin/code"
        ;;
    linux*)
        CODE="/usr/bin/code"
        ;;
    *)
        echo -e "This script is not supported on this operating system\n"
        exit 1
        ;;
esac

# Test to ensure the user passed at least one parameter (the subcommand)
if [ ! "$#" -ge 1 ]; then
    echo -e "No valid subcommand was provided, exiting\n"
    echo -e "${HELP}\n"
    exit 1
fi

# Parse the command line to get the subcommand
SUBCMD="$1"

# Switch into the journal directory for the remainder of the script
cd "${JRNLPATH}"

# Use the subcommand to either create a new entry or edit an existing entry
case "${SUBCMD}" in
    new)
        # Check to see if a file already exists for today
        # If not, create new file and populate with initial content
        # If so, append time as new heading for new entry
        JRNLNAME="${JRNLUID}.md"
        if [ -f "${JRNLPATH}/${JRNLNAME}" ]; then
            # Echo the current time to the existing file, and open it in Code
            echo -e "\n" >> "${JRNLNAME}"
            echo -e "\n## ${ENTRYTIME}" >> "${JRNLNAME}"
            ${CODE} "${JRNLPATH}" -g "${JRNLNAME}"
        else
            # Create the file, populate with initial info, and open it in Code
            touch "${JRNLNAME}"
            echo -e "# Journal Entries for ${FULLDATE}\n" >> "${JRNLNAME}" 
            echo -e "## ${ENTRYTIME}\n" >> "${JRNLNAME}"
            ${CODE} "${JRNLPATH}" -g "${JRNLNAME}":5
        fi
        ;;
    edit)
        ${CODE} "${JRNLPATH}"
        ;;
    old)
        USERDATE="$2"
        FILEDATE="$(date '+%F' -d ${USERDATE})"
        OLDENTRYDATE="$(date '+%A, %B %d %Y' -d ${USERDATE})"
        USERTIME="$3"
        OLDENTRYTIME="$(date '+%I:%M %p' -d ${USERTIME})"
        JRNLNAME="${FILEDATE}.md"
        if [ -f "${JRNLPATH}/${JRNLNAME}" ]; then
            # Echo an error; an entry already exists for this date
            echo -e "An entry already exists for this date, exiting\n"
            exit 1
        else
            touch "${JRNLNAME}"
            echo -e "# Journal Entries for ${OLDENTRYDATE}\n" >> "${JRNLNAME}" 
            echo -e "## ${OLDENTRYTIME}\n" >> "${JRNLNAME}"
            ${CODE} "${JRNLPATH}" -g "${JRNLNAME}":5
        fi
        ;;
esac