jot

#!/bin/bash
# jot: to write or mark down quickly or briefly

jotsPath=~/jots

usage() {
    if [ "$#" -gt 0 ]; then
        usage="$usage$*\n"
    else
        echo -e "$usage" | column -t -s:
    fi
}

usage "jot id: generate new jot ID"
jot_id() {
    date +'%Y-%m-%d-%H%M'
}

usage "jot ref: generate new ref"
usage "jot ref list [<search>]: list refs"
jot_ref() {
    if [[ "$1" =~ l|list ]]; then
        for f in [0-9-]*; do
            # Extract refs from first line of all files (removing @)
            for t in $(sed -n -E '/(^|[[:space:]])@([#[:alnum:]_]+)/s/@//gp' $f); do
                if [ -n "$2" ]; then
                    if [ "$2" == "--raw" ]; then
                        echo "$f:$t"
                    elif [ "$2" == "$t" ]; then
                        echo "$f" # files that use this ref
                    elif [ "$2" == "$f" ]; then
                        echo "$t" # refs used in this file
                    fi
                else
                    echo "$t" # all refs
                fi
            done
        done | sort -u
    else
        printf '@%x\n' "$(date +'%s')"
    fi
}

usage "jot ctags: generate ctags index file"
jot_ctags() {
    for pair in $(jot_ref list --raw); do
        IFS=: read -r f t <<< $pair
        echo -e "$t\t$f\t/@$t/;\"\tref"
    done > "$jotsPath/tags"
}

# Other commands
usage "jot lf: browse jots in lf"
usage "jot open: open all jots in vim"
usage "jot path: print location of jots"
usage "jot [new]: create new jot"

# Enables us to use relative paths
cd "$jotsPath" || exit 1

case "$1" in
    p|path)   echo "$jotsPath" ;;
    l|lf)     lf ;;
    i|id)     jot_id ;;
    r|ref)    shift; jot_ref "$@" ;;
    c|ctags)  jot_ctags ;;
    o|open)   exec vim [0-9]* ;;
    n|new|'') exec vim "$(jot_id)" ;;
    *)        usage ;;
esac