"""Launcher for the EZFlow v3 web app (turbulent-RANS GNN predictor).

  python ezflow_v3/app/run_app.py     ->  http://127.0.0.1:8000

Serves the TMLR paper's seed-0 models (HybridFlow / GeoReNet) with a model selector,
model-vs-model compare, robust STL meshing, slicing, point probe, and CSV export.
This supersedes the old v1 app under app/ (which used the archived ezflow_gnn poc_v4).
"""
from __future__ import annotations
import os, sys, webbrowser
from pathlib import Path
import uvicorn

os.environ.setdefault("KMP_DUPLICATE_LIB_OK", "TRUE")
os.environ.setdefault("OMP_NUM_THREADS", "1")
REPO_ROOT = Path(__file__).resolve().parents[2]


def main():
    sys.path.insert(0, str(REPO_ROOT))
    os.chdir(str(REPO_ROOT))
    url = "http://127.0.0.1:8000"
    print(f"EZFlow v3 app -> {url}  (models: HybridFlow / GeoReNet, seed-0 TMLR checkpoints)", flush=True)
    try:
        webbrowser.open(url)
    except Exception:
        pass
    import ezflow_v3.app.serve as serve
    uvicorn.run(serve.app, host="127.0.0.1", port=8000, log_level="info", reload=False)


if __name__ == "__main__":
    main()