#!/usr/bin/env sh
set -eu

SCRIPT_DIR=$(CDPATH= cd -- "$(dirname "$0")" && pwd)
PROJECT_DIR=$(CDPATH= cd -- "$SCRIPT_DIR/../.." && pwd)
OUTPUT_PATH="${1:-$PROJECT_DIR/docs/openapi.json}"
API_PORT="${API_PORT:-8000}"

mkdir -p "$(dirname "$OUTPUT_PATH")"

if PYTHONPATH="$PROJECT_DIR/apps/api" python3 - "$OUTPUT_PATH" <<'PY'
import json
import sys
from app.main import app

output = sys.argv[1]
spec = app.openapi()
with open(output, "w", encoding="utf-8") as f:
    json.dump(spec, f, ensure_ascii=False, indent=2)
    f.write("\n")
print(f"OpenAPI 已固化到: {output}")
PY
then
  exit 0
fi

echo "本机缺少 API 依赖，尝试从已运行 API 导出..."
if curl -fsS "http://127.0.0.1:${API_PORT}/openapi.json" -o "$OUTPUT_PATH"; then
  echo "OpenAPI 已固化到: $OUTPUT_PATH"
  exit 0
fi

echo "本机 API 端口不可用，尝试通过 Docker 运行 API 镜像离线导出..."
docker compose -f "$PROJECT_DIR/infrastructure/docker-compose.yml" run --rm api \
  python -c "import json; from app.main import app; print(json.dumps(app.openapi(), ensure_ascii=False, indent=2))" \
  > "$OUTPUT_PATH"
echo "OpenAPI 已固化到: $OUTPUT_PATH"