"""Runtime configuration (all overridable via env). Defaults target the
`genrecon` LXC produced by issue i-opavuyaq; the MOCK path lets the whole
app run/test on any machine without a GPU or the GenRecon install."""
import os
from pathlib import Path

BASE = Path(__file__).resolve().parent
ROOT = BASE.parent


def _flag(name: str, default: str = "0") -> bool:
    return str(os.environ.get(name, default)).lower() in ("1", "true", "yes", "on")


# --- mode ---
MOCK = _flag("GENRECON_MOCK")                       # skip GPU pipeline, emit the sample scene

# --- paths ---
JOBS_DIR = Path(os.environ.get("GENRECON_JOBS_DIR", "/srv/jobs"))
FRONTEND_DIR = Path(os.environ.get("GENRECON_FRONTEND_DIR", str(ROOT / "frontend")))
SAMPLE_GLB = Path(os.environ.get("GENRECON_SAMPLE_GLB", str(ROOT / "sample" / "scene.glb")))

# --- GenRecon install (on the genrecon machine) ---
GENRECON_SRC = Path(os.environ.get("GENRECON_SRC", "/opt/genrecon/src"))
GENRECON_CKPTS = Path(os.environ.get("GENRECON_CKPTS", "/opt/genrecon/ckpts"))
CONDA_ENV = os.environ.get("GENRECON_CONDA_ENV", "genrecon")
CUDA_DEVICE = os.environ.get("GENRECON_CUDA_DEVICE", "5")   # pin to a free GPU on hypervisor a

# --- pipeline knobs ---
FFMPEG_BIN = os.environ.get("GENRECON_FFMPEG_BIN", "ffmpeg")
COLMAP_BIN = os.environ.get("GENRECON_COLMAP_BIN", "colmap")
FRAMES_FPS = float(os.environ.get("GENRECON_FRAMES_FPS", "2"))
FRAMES_MAX = int(os.environ.get("GENRECON_FRAMES_MAX", "300"))
NUM_IMGS_PER_SCENE = int(os.environ.get("GENRECON_NUM_IMGS", "999"))
PIPELINE_CONFIG = os.environ.get("GENRECON_PIPELINE_CONFIG", "configs/pipelines/texture.json")
MAX_UPLOAD_MB = int(os.environ.get("GENRECON_MAX_UPLOAD_MB", "2048"))

JOBS_DIR.mkdir(parents=True, exist_ok=True)

# Stage order + the progress band each stage fills (start, end).
STAGES = [
    ("frames",      5,  25),
    ("colmap",      25, 55),
    ("reconstruct", 55, 90),
    ("glb",         90, 100),
]