evw

#!/usr/bin/env bash

dir_evw=""
evw_config=""
evw_venv=""
evw_params=$@
params_count=$#

function check_env_var() {
    local env_var=$1
    local var_value=${!env_var}

    if [[ -n "${var_value}" ]]; then
        return 0
    else
        return 1
    fi
}

function is_dir() {
    local dir=$1
    if [[ -d "${dir}" ]]; then
        return 0
    else
        return 1
    fi
}

function is_file() {
    local file=$1
    if [[ -f "${file}" ]]; then
        return 0
    else
        return 1
    fi
}

function check_params() {
    local tcfg=""
    while [[ $# -gt 0 ]]; do
        case $1 in
            "-c"|"--config")
                shift
                if [[ $# -gt 0 ]]; then
                    tcfg="$1"
                    # if is_file "${tcfg}"; then
                    #     echo "${tcfg}"
                    # fi
                    echo "${tcfg}"
                    break
                fi
                ;;
        esac
        shift
    done
}

if check_env_var "EVENTWATCHER_DIR" && is_file "${EVENTWATCHER_DIR}/.EVENTWATCHER_DIR"; then
    dir_evw="${EVENTWATCHER_DIR}"
elif is_file "${PWD}/.EVENTWATCHER_DIR"; then
    dir_evw="${PWD}"
    if is_file "${dir_evw}/venv/pyvenv.cfg"; then
        evw_venv="${dir_evw}/venv"
    fi
fi

if check_env_var "EVENTWATCHER_VENV" && is_dir "${EVENTWATCHER_VENV}"; then
    if is_file "${EVENTWATCHER_VENV}/pyvenv.cfg"; then
        evw_venv="${EVENTWATCHER_VENV}"
    fi
fi

evw_config=$(check_params ${evw_params})

evw_f=false
if [[ -z ${evw_config} ]]; then
    evw_f=true
    if check_env_var "EVENTWATCHER_CONFIG"; then
        if is_file "${EVENTWATCHER_CONFIG}"; then
            evw_config="${EVENTWATCHER_CONFIG}"
        elif is_dir "${EVENTWATCHER_CONFIG}" && is_file "${EVENTWATCHER_CONFIG}/config.toml"; then
            evw_config="${EVENTWATCHER_CONFIG}/config.toml"
        else
            echo "Error: Invalid EVENTWATCHER_CONFIG environment variable."
        fi
    elif [[ -n "${dir_evw}" ]] && is_file "${dir_evw}/config.toml"; then
        evw_config="${dir_evw}/config.toml"
    elif is_file "${HOME}/.config/eventwatcher/config.toml"; then
        evw_config="${HOME}/.config/eventwatcher/config.toml"
    elif is_file "${PWD}/config.toml"; then
        evw_config="${PWD}/config.toml"
    else
        echo "Error: No configuration file found."
        exit 1
    fi
fi

if ${evw_f}; then
    evw_params="-c ${evw_config} $*"
else
    params_count=$(( params_count-2 ))
fi

if [[ ${params_count} -le 0 ]]; then
    evw_params="--help"
fi

if eventwatcher status > /dev/null 2>&1; then
    eventwatcher ${evw_params}
elif [[ -n ${evw_venv} ]]; then
    source "${evw_venv}/bin/activate"
    eventwatcher ${evw_params}
    deactivate
fi