#!/usr/bin/env bash
# smoke-test.sh - runtime smoke tests for the generated bindings.
#
# The compile gate proves the generated Swift type-checks. This goes further:
# it generates a selected tier's bindings, links them against the REAL C libraries via
# pkg-config, and runs hand-written swift-testing cases from the selected tier's
# regression/tier<N>/*.swift files. Tier 6 installs every tier's fixtures into one
# full-stack package.
#
# Usage: scripts/smoke-test.sh [tier|all] [--fresh]
#
#   tier     1..6 (default 1). tier1 = GLib+GObject, tier2 = +GModule+Gio, ...
#            tier 6/all installs the accumulated fixtures from tiers 1 through 6
#   all      alias for tier 6
#   --fresh  wipe the selected tier's output directory before generating
#
# Output goes to ${TMPDIR:-/tmp}/gobject-generator-smoke/tier-<N> (a stable path so
# incremental swift builds stay fast between runs).

set -euo pipefail

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

TIER="1"
FRESH=0
for arg in "$@"; do
	if [[ "$arg" == "--fresh" ]]; then
		FRESH=1
	else
		TIER="$arg"
	fi
done

if [[ "$TIER" == "all" ]]; then
	TIER="6"
fi

if [[ "$TIER" == "1" ]]; then
	SMOKE_TIERS=(1)
elif [[ "$TIER" == "6" ]]; then
	SMOKE_TIERS=(1 2 3 4 5 6)
else
	SMOKE_TIERS=(1 "$TIER")
fi

CONFIG="$ROOT/regression/tier${TIER}/config.toml"
OUT="${TMPDIR:-/tmp}/gobject-generator-smoke/tier-${TIER}"

if [[ ! -f "$CONFIG" ]]; then
	echo "!! missing $CONFIG" >&2
	exit 2
fi

[[ "$FRESH" == 1 ]] && rm -rf "$OUT"
mkdir -p "$OUT"

echo "==> Building generator"
swift build --package-path "$ROOT"
BIN="$(swift build --package-path "$ROOT" --show-bin-path)/generator"

echo "==> Generating tier $TIER bindings (with SmokeTests target) into $OUT"
"$BIN" --monorepo-config "$CONFIG" --output "$OUT" --smoke-target >"$OUT/generate.log" 2>&1

echo "==> Installing smoke tests"
mkdir -p "$OUT/Tests/SmokeTests"
for smoke_tier in "${SMOKE_TIERS[@]}"; do
	cp "$ROOT/regression/tier${smoke_tier}/"*.swift "$OUT/Tests/SmokeTests/"
done

echo "==> Running smoke tests against the real C libraries"
swift test --package-path "$OUT"