#!/usr/bin/env bash
#
# web-search - Bash wrapper of web-search.el
#
# Usage: Type 'web-search --help' to learn

EMACS=${EMACS:-emacs}

# https://stackoverflow.com/questions/7665/how-to-resolve-symbolic-links-in-a-shell-script
_realpath () {
    if command -v realpath &>/dev/null; then
        realpath "$0"
    elif command -v grealpath &>/dev/null; then
        grealpath "$0"
    else
        if [[ "$OSTYPE" == darwin* ]]; then
            /usr/bin/readlink "$0"
        else
            readlink -f "$0"
        fi
    fi
}

if [[ -L "$0" ]]; then
    real="$(_realpath "$0")"
    web_search_program_root="${real%/*}/"
else
    web_search_program_root="${0%/*}/"
fi

if [[ "$1" == "--completion" ]]; then
    cat "${web_search_program_root}/web-search-completion.bash"
    exit
fi

if [[ -f "$HOME/.config/web-search-config.el" ]]; then
    web_search_configuration="$HOME/.config/web-search-config.el"
elif [[ -f "$HOME/.web-search-config.el" ]]; then
    web_search_configuration="$HOME/.web-search-config.el"
fi

if [[ -z "$web_search_configuration" ]]; then
    WEB_SEARCH_PROGRAM_NAME="${0##*/}" "$EMACS" -Q --batch -l "${web_search_program_root}/web-search.el" -f web-search-batch -- "$@"
else
    WEB_SEARCH_PROGRAM_NAME="${0##*/}" "$EMACS" -Q --batch -l "${web_search_program_root}/web-search.el" -l "$web_search_configuration" -f web-search-batch -- "$@"
fi