#!/usr/bin/env bash

NOTEBOOK_DIR=~/notebook

if [[ ! -d "$NOTEBOOK_DIR" ]]; then
    echo "Error: Notebook directory does not exist at $NOTEBOOK_DIR"
    exit 1
fi

cd "$NOTEBOOK_DIR" || exit 1

show_help() {
    cat << EOF
nb - Notebook management tool

Usage: nb <command>

Commands:
  save      Commit changes with timestamp
  sync      Save, fetch, and push changes
  log       Show commit log
  diff      Show differences
  status    Show diff summary

EOF
}

case "$1" in
    save)
        jj diff -r @ --summary | grep -q . && jj commit -m "$(date +"%Y-%m-%dT%H:%M:%S%z")" && jj tug || true
        ;;
    sync)
        "$0" save && jj git fetch && jj git push
        ;;
    log)
        jj log -r ".."
        ;;
    diff)
        jj diff
        ;;
    status)
        jj diff -s
        ;;
    "")
        show_help
        ;;
    *)
        echo "Error: Unknown command '$1'"
        echo ""
        show_help
        exit 1
        ;;
esac