#!/bin/bash
# A felhom-samba VERSION NUMBER IS PUSHED ONCE — the test for build-samba-image.sh's registry and tree checks
# (R-972, 1.2.0). Same method as test_build_push_once.sh: a fake `docker` first on PATH drives the REAL script;
# the fake answers `build`/`push` with a marker, so a run that got past a refusal is caught, and nothing is pushed.
# Run from controller/:  bash scripts/test_samba_build_push_once.sh
set -u
HERE="$(cd "$(dirname "$0")" && pwd)"
SH="$HERE/build-samba-image.sh"
fails=0; ran=0
make_fake_docker() {
    mkdir -p "$1"
    cat > "$1/docker" <<'FAKE'
#!/bin/bash
case "$1 $2" in
  "manifest inspect")
    case "${FAKE_MODE}" in
      present) echo '{"schemaVersion":2}'; exit 0 ;;
      absent)  echo "manifest unknown: manifest unknown" >&2; exit 1 ;;
      down)    echo "dial tcp: connection refused" >&2; exit 1 ;;
    esac ;;
  "build "*|"push "*) echo "FAKE-DOCKER-REACHED: $*"; exit 0 ;;
esac
exit 0
FAKE
    chmod +x "$1/docker"
}
run() {  # $1 mode, $2 repo dir ("" = default), rest = args
    local mode="$1" repo="$2"; shift 2
    local tmp; tmp="$(mktemp -d)"; make_fake_docker "$tmp/bin"
    if [[ -n "$repo" ]]; then FAKE_MODE="$mode" FELHOM_REPO_DIR="$repo" PATH="$tmp/bin:$PATH" bash "$SH" "$@" >"$tmp/out" 2>&1
    else FAKE_MODE="$mode" PATH="$tmp/bin:$PATH" bash "$SH" "$@" >"$tmp/out" 2>&1; fi
    rc=$?; out="$(cat "$tmp/out")"; rm -rf "$tmp"
}
check() {  # name, want_rc, want_text, forbid_text
    ran=$((ran+1))
    if [[ "$rc" != "$2" ]] || { [[ -n "$3" ]] && ! grep -qi -- "$3" <<<"$out"; } || { [[ -n "${4:-}" ]] && grep -qi -- "$4" <<<"$out"; }; then
        fails=$((fails+1)); echo "  FAIL $1 (exit $rc)"; echo "$out" | tail -4 | sed 's/^/        /'; return
    fi
    echo "  ok   $1"
}
scratch_repo() {
    local d; d="$(mktemp -d)"; git -C "$d" init -q; git -C "$d" config user.email t@t; git -C "$d" config user.name t
    mkdir -p "$d/controller/infra-images/samba"; echo x > "$d/controller/infra-images/samba/Dockerfile"
    git -C "$d" add -A >/dev/null; git -C "$d" commit -qm one >/dev/null; git -C "$d" update-ref refs/remotes/origin/main HEAD; echo "$d"
}
echo "build-samba-image.sh — a version number is pushed once, from a clean tree"
R="$(scratch_repo)"
run present "$R" 9.9.9 --push; check "tag present -> refuses" 1 "already exists in the registry" "FAKE-DOCKER-REACHED"
run down "$R" 9.9.9 --push;    check "registry unreachable -> refuses" 1 "Could not establish whether" "FAKE-DOCKER-REACHED"
run absent "$R" 9.9.9 --push;  check "tag absent, clean tree -> builds and pushes" 0 "FAKE-DOCKER-REACHED: push" "refusing"
echo dirt > "$R/controller/infra-images/samba/extra"
run absent "$R" 9.9.9 --push;  check "dirty tree -> refuses" 1 "uncommitted changes" "FAKE-DOCKER-REACHED"
rm -f "$R/controller/infra-images/samba/extra"; echo y > "$R/controller/f2"; git -C "$R" add -A >/dev/null; git -C "$R" commit -qm two >/dev/null
run absent "$R" 9.9.9 --push;  check "ahead of origin/main -> refuses" 1 "not at origin/main" "FAKE-DOCKER-REACHED"
rm -rf "$R"
run present "" 9.9.9;          check "local build, tag present -> not refused" 0 "FAKE-DOCKER-REACHED: build" "already exists"
echo
[[ $fails -eq 0 ]] && { echo "all $ran cases behaved"; exit 0; }
echo "$fails of $ran cases FAILED"; exit 1