#! /usr/bin/env bash
#
# Anod wrapper script.
#
# Note that this script is meant to either be run directly by the user or is
# meant to be sourced. In the former case, we can assume we're running bash. In
# the latter case, we're in the user's current shell. We support bash and zsh.
# Support for ksh is incomplete.

# Script location
SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" >/dev/null 2>&1 && pwd )"

# Load global paths
source "${SCRIPT_DIR}/infrastructure/paths.sh"

# Determine if we're being sourced (BASH, KSH, and ZSH compliant):
([[ -n $ZSH_EVAL_CONTEXT && $ZSH_EVAL_CONTEXT =~ :file$ ]] || 
 [[ -n $KSH_VERSION && $(cd "$(dirname -- "$0")" &&
    printf '%s' "${PWD%/}/")$(basename -- "$0") != "${.sh.file}" ]] || 
 [[ -n $BASH_VERSION ]] && (return 0 2>/dev/null)) && sourced=1 || sourced=0

ANOD_SCRIPT="from uxas.cli.anod import do_cli; exit(do_cli())"


# Define a shell function for anod.
function _anod {
    # Activate the python venv
    activate_venv

    # Look ahead to see if we're building uxas-ada
    if is_first_positional_arg "$*" "build" && contains "$*" "uxas-ada"; then
        ensure_gnat
    fi
    
    # Look ahead to process specific commands.
    command=$( get_first_positional_arg "$*" )
    case ${command} in
        build)
            # Are we building? if so, we should set the SHELL variable to bash;
            # zsh will not work correctly with boost.
            debug_and_run "SHELL=$( which bash ) python3 -c \"${ANOD_SCRIPT}\" $*"
            ;;

        setenv)
            if [[ -n ${_DIRECT_EXEC} ]]; then
                echo "Can't setenv: anod was not called as shell function."
                echo " "
                echo "try \`source ./anod\` and then call anod without the ./ like this:"
                echo "\`anod setenv\`"
                return 1
            else
                debug_and_run "eval \"\$( python3 -c \"${ANOD_SCRIPT}\" printenv ${@/$command} )\""
            fi
            ;;

        reset)
            debug_and_run "rm -rf \"${SBX_DIR}\""
            ;;
        
        *)
            debug_and_run "python3 -c \"${ANOD_SCRIPT}\" $*"
            ;;
    esac
}


# If we're not being sourced, then try to run the command the user requested.
if [ $sourced -eq 0 ]; then
    _DIRECT_EXEC=0
    _anod $@
else
    # If the user sources this file, install anod as a shell function
    function anod {
        _anod $@
    }
fi