#!/usr/bin/env bash
# Part of JoeyLib, Copyright (c) 2026 Scott Duensing, under the MIT License.
# See LICENSE.md for license information.
# SPDX-License-Identifier: MIT
#
# check-fileroots.sh - Host-cc gate for the run-time file roots
# (src/core/fileRoot.h, JL_HAS_FILE_ROOTS, which the DVX port defines): with
# the flag, DATA/ is read under the port's read root and SAVES/ and
# joeylog.txt are written under its write root; without it the layout every
# other port has, all relative to the current directory, is unchanged.
#
# Builds the BLANK port (the check-blank.sh source set) plus
# tests/host/fileRootHost.c twice, with the POSIX save HAL flags check-save.sh
# uses: once with -DJL_HAS_FILE_ROOTS (the harness is the port: its roots are
# folders in a temp dir) and once without. Each runs in an empty current
# directory of its own, and the flagless program must not contain
# jlLogClose, which exists only under the flag. Exits nonzero on any failed
# check.
set -euo pipefail

repo=$(cd "$(dirname "${BASH_SOURCE[0]}")/.." && pwd)
cc=${CC:-cc}
work=$(mktemp -d -t joeylib-fileroots.XXXXXX)
trap 'rm -rf "$work"' EXIT

cd "$repo"
build() {
    "$cc" -DJOEYLIB_PLATFORM_BLANK -DJL_HAS_SAVE_DIR_ENSURE -DJL_HAS_SAVE_DELETE "$@" \
        -Iinclude -Iinclude/joey -Isrc/core -Isrc/codegen -Wall -Wextra \
        src/core/*.c src/generic/*.c src/blank/blank.c tests/host/fileRootHost.c
}
build -DJL_HAS_FILE_ROOTS -o "$work/rootsHost"
build -o "$work/plainHost"

if nm "$work/plainHost" | grep -qw jlLogClose; then
    echo "check-fileroots: FAIL - jlLogClose is in the build without JL_HAS_FILE_ROOTS" >&2
    exit 1
fi

mkdir -p "$work/roots" "$work/plain"
fails=0
( cd "$work/roots" && "$work/rootsHost" "$work/readRoot/" "$work/writeRoot/" ) || fails=1
( cd "$work/plain" && "$work/plainHost" ) || fails=1
if [ "$fails" != 0 ]; then
    echo "check-fileroots: FAIL" >&2
    exit 1
fi
echo "check-fileroots: PASS (roots honoured under JL_HAS_FILE_ROOTS; the flagless layout unchanged)"