#!/usr/bin/env bash
# Marmot MLS interop test orchestrator.
#
# Builds Rust and Moxie interop binaries (if requested) then runs a
# bidirectional JSON-over-stdio test suite driven by Node.
#
# Usage:
#   scripts/mls-interop-test.sh               # run tests (assume binaries built)
#   scripts/mls-interop-test.sh --build       # build binaries first
#   scripts/mls-interop-test.sh --build-only  # just build, don't run
#   MOXIE=/path/to/moxie scripts/mls-interop-test.sh --build
#
# Environment:
#   MOXIE        — path to moxie checkout (default: ../moxie)
#   ORLY         — path to orly.dev checkout (default: ../orly.dev)
#   SKIP_RUST    — if set, skip all Rust-side tests
#   SKIP_MOXIE   — if set, skip all Moxie-side tests

set -euo pipefail

SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
REPO_ROOT="$(cd "$SCRIPT_DIR/.." && pwd)"

MOXIE="${MOXIE:-$REPO_ROOT/../moxie}"
ORLY="${ORLY:-$REPO_ROOT/../orly.dev}"

BUILD=0
BUILD_ONLY=0
for arg in "$@"; do
  case "$arg" in
    --build) BUILD=1 ;;
    --build-only) BUILD=1; BUILD_ONLY=1 ;;
    --help|-h)
      sed -n '3,20p' "$0"
      exit 0
      ;;
  esac
done

if [[ $BUILD -eq 1 ]]; then
  # moxiejs lives directly in the moxie checkout (see Makefile build-sw target),
  # not under a bin/ subdirectory.
  MOXIEJS="$MOXIE/moxiejs"
  if [[ ! -x "$MOXIEJS" ]]; then
    MOXIEJS="$(command -v moxiejs || true)"
  fi
  if [[ -z "$MOXIEJS" || ! -x "$MOXIEJS" ]]; then
    echo "error: moxiejs binary not found at $MOXIE/moxiejs or on \$PATH" >&2
    exit 2
  fi

  echo "== building Moxie interop binary =="
  # GOROOT=$MOXIE forces moxiejs to resolve stdlib from the moxie-vendored .mx
  # tree instead of host Go's .go stdlib (which triggers bytealg typecheck errors).
  (
    cd "$REPO_ROOT/web/mlsinterop"
    GOROOT="$MOXIE" GOWORK=off MOXIEROOT="$MOXIE" "$MOXIEJS" \
      -runtime "$MOXIE/jsruntime" \
      -o "$REPO_ROOT/web/mlsinterop/static/" \
      .
  )

  if [[ -z "${SKIP_RUST:-}" ]]; then
    echo "== building Rust interop binary =="
    (
      cd "$ORLY/pkg/nostr/protocol/marmot/testdata/interop"
      cargo build --release
    )
  fi
fi

if [[ $BUILD_ONLY -eq 1 ]]; then
  exit 0
fi

MOXIE_ENTRY="$REPO_ROOT/web/mlsinterop/node-entry.mjs"
RUST_BIN="$ORLY/pkg/nostr/protocol/marmot/testdata/interop/target/release/mls-interop"

if [[ ! -f "$MOXIE_ENTRY" ]]; then
  echo "error: Moxie entry not found at $MOXIE_ENTRY" >&2
  echo "hint: run with --build to compile it" >&2
  exit 1
fi

if [[ -z "${SKIP_RUST:-}" && ! -x "$RUST_BIN" ]]; then
  echo "error: Rust binary not found at $RUST_BIN" >&2
  echo "hint: run with --build to compile it, or set SKIP_RUST=1" >&2
  exit 1
fi

MOXIE_ENTRY="$MOXIE_ENTRY" \
RUST_BIN="$RUST_BIN" \
SKIP_RUST="${SKIP_RUST:-}" \
SKIP_MOXIE="${SKIP_MOXIE:-}" \
exec node "$SCRIPT_DIR/mls-interop-test.mjs"