#!/bin/sh

# realpath shim taken from:
# https://github.com/mkropat/sh-realpath
# The MIT License (MIT)
# Copyright (c) 2014 Michael Kropat

realpath() {
    canonicalize_path "$(resolve_symlinks "$1")"
}

resolve_symlinks() {
    _resolve_symlinks "$1"
}

_resolve_symlinks() {
    _assert_no_path_cycles "$@" || return

    local dir_context path
    path=$(readlink -- "$1")
    if [ $? -eq 0 ]; then
        dir_context=$(dirname -- "$1")
        _resolve_symlinks "$(_prepend_dir_context_if_necessary "$dir_context" "$path")" "$@"
    else
        printf '%s\n' "$1"
    fi
}

_prepend_dir_context_if_necessary() {
    if [ "$1" = . ]; then
        printf '%s\n' "$2"
    else
        _prepend_path_if_relative "$1" "$2"
    fi
}

_prepend_path_if_relative() {
    case "$2" in
        /* ) printf '%s\n' "$2" ;;
         * ) printf '%s\n' "$1/$2" ;;
    esac
}

_assert_no_path_cycles() {
    local target path

    target=$1
    shift

    for path in "$@"; do
        if [ "$path" = "$target" ]; then
            return 1
        fi
    done
}

canonicalize_path() {
    if [ -d "$1" ]; then
        _canonicalize_dir_path "$1"
    else
        _canonicalize_file_path "$1"
    fi
}

_canonicalize_dir_path() {
    (cd "$1" 2>/dev/null && pwd -P)
}

_canonicalize_file_path() {
    local dir file
    dir=$(dirname -- "$1")
    file=$(basename -- "$1")
    (cd "$dir" 2>/dev/null && printf '%s/%s\n' "$(pwd -P)" "$file")
}

export CLOSH_SOURCES_PATH=$(dirname $(dirname $(realpath "$0")))

LUMO_BIN="$CLOSH_SOURCES_PATH/node_modules/lumo-cljs/bin/lumo"

# NODE_PATH seems to be missing when running as global binary
export NODE_PATH="$CLOSH_SOURCES_PATH/node_modules:$CLOSH_SOURCES_PATH/..:$NODE_PATH"

exec "$LUMO_BIN" --classpath "$CLOSH_SOURCES_PATH/src/common:$CLOSH_SOURCES_PATH/src/lumo" --cache "$HOME/.closh/cache/lumo" -m closh.zero.main