recipes

#!/usr/bin/env bash

# ┏━┓┏━╸┏━╸╻┏━┓┏━╸┏━┓
# ┣┳┛┣╸ ┃  ┃┣━┛┣╸ ┗━┓
# ╹┗╸┗━╸┗━╸╹╹  ┗━╸┗━┛
#
# script to open my recipes in zathura

PROG=$(basename "$0")
ROOT="${XDG_DOCUMENTS_DIR:-}/vimwiki/cookbook/"
TMP="/tmp"
TERMINAL=${TERMINAL:-st}
DEPS=(pandoc zathura find pdflatex)

function send_notification {
    local prog
    local mesg="<b>$1</b>"
    local icon="cookie"
    prog=$(echo "$PROG" | tr '[:lower:]' '[:upper:]')
    notify-send -i "$icon" "$prog" "$mesg"
}

function log_err {
    printf "%s: %s\n" "$PROG" "$*" >&2
    exit 1
}

if [[ ! -d "$ROOT" ]]; then
    err_msg="path not found: $ROOT"
    send_notification "$err_msg"
    log_err "$err_msg"
fi

# load files
declare -a COOKS
readarray -t COOKS < <(find "$ROOT" -type f -name "*.md" -exec basename {} \;)

function list_recipes {
    local recipe
    recipe=$(printf "%s\n" "${COOKS[@]}" | dmenu -l 10 -p "cookbook>")
    echo "$recipe"
}

function select_recipe {
    local recipe
    recipe=$(list_recipes)

    echo "$recipe"
}

function convert_recipe {
    local filepath filename pdf
    filepath="$1"
    filename=$(basename "$filepath")
    pdf="${TMP}/${filename%%.md}.pdf"

    # if [[ ! -f "${pdf}" ]]; then
    # 	pandoc --from=markdown --to=pdf "${filepath}" --output="${pdf}"
    # fi

    pandoc --from=markdown --to=pdf "${filepath}" --output="${pdf}"
    echo "$pdf"
}

function open_recipe {
    local recipe
    recipe=$(select_recipe)

    [[ -z "${recipe}" ]] && exit 1

    file=$(find "$ROOT" -type f -name "${recipe}")
    pdf=$(convert_recipe "${file}")

    if [[ ! -f "${pdf}" ]]; then
        printf "%s: %s\n" "$PROG" "pdf file '${pdf}' not found"
        exit 1
    fi

    zathura "$pdf"
}

function edit_recipe {
    local recipe
    recipe=$(select_recipe)
    $TERMINAL -e nvim "${ROOT}/${recipe}"
}

function redo_recipe {
    local recipe
    recipe=$(select_recipe)
    file=$(find "$ROOT" -type f -name "${recipe}")
    convert_recipe "${file}"
}

function usage {
    cat <<-_EOF
Usage: $PROG [options]

Options:
    -e, --edit    edit recipe
    -r, --redo    convert recipe
    -o, --open    open recipe
    -h, --help    display this help and exit
_EOF
}

function main {
    local recipe cmd
    local arg="$1"

    for cmd in "${DEPS[@]}"; do
        if ! command -v "$cmd" >/dev/null; then
            log_err "'$cmd' not found"
        fi
    done

    case "$arg" in
    -h | *help) usage ;;
    -e | *edit) edit_recipe ;;
    -r | redo) redo_recipe ;;
    *) open_recipe "${recipe}" ;;
    esac
}

main "$@"