#!/bin/sh
set -eu
# ------------------------------------------------------------
# 0) Load env file shipped with repo (backend/env)
# ------------------------------------------------------------
ENV_FILE="/app/backend/env"
if [ -f "$ENV_FILE" ]; then
  echo "[BOOT] Loading env from $ENV_FILE"
  set -a
  . "$ENV_FILE"
  echo "[CHECK] SMTP_HOST set? ${SMTP_HOST:+yes}"
  echo "[CHECK] SMTP_PORT set? ${SMTP_PORT:+yes}"
  echo "[CHECK] SMTP_USER set? ${SMTP_USER:+yes}"
  echo "[CHECK] SMTP_PASS set? ${SMTP_PASS:+yes}"
  set +a
else
  echo "[BOOT] No env file at $ENV_FILE (continuing without it)"
fi
DATA_ROOT="/app/inference-data"
ERA5_SUBDIR="ERA5_Germany"
ERA5_PATH="$DATA_ROOT/$ERA5_SUBDIR"

MODEL_ROOT="/app/model-artifacts"

# ------------------------------------------------------------
# 1) ERA5 Dataset laden (nur wenn fehlt/leer)
# ------------------------------------------------------------
if [ ! -d "$ERA5_PATH" ] || [ -z "$(ls -A "$ERA5_PATH" 2>/dev/null)" ]; then
  echo "[BOOT] Downloading dataset dspunituebingen/era5 -> $DATA_ROOT (ERA5_Germany/**)"
  python - <<'PY'
import os
from huggingface_hub import snapshot_download

token = os.getenv("HF_TOKEN") or os.getenv("HUGGINGFACEHUB_API_TOKEN")

snapshot_download(
    repo_id="dspunituebingen/era5",
    repo_type="dataset",
    local_dir="/app/inference-data",
    allow_patterns=["ERA5_Germany/**"],
    token=token,
)
print("[BOOT] ERA5 ready at /app/inference-data/ERA5_Germany")
PY
fi

# ------------------------------------------------------------
# 2) Modell-Repo laden (nur wenn fehlt/leer)
# ------------------------------------------------------------
if [ ! -d "$MODEL_ROOT" ] || [ -z "$(ls -A "$MODEL_ROOT" 2>/dev/null)" ]; then
  echo "[BOOT] Downloading model dspunituebingen/windproject-model -> $MODEL_ROOT"
  python - <<'PY'
import os
from huggingface_hub import snapshot_download

token = os.getenv("HF_TOKEN") or os.getenv("HUGGINGFACEHUB_API_TOKEN")

snapshot_download(
    repo_id="dspunituebingen/windproject-model",
    repo_type="model",
    local_dir="/app/model-artifacts",
    token=token,
)
print("[BOOT] Model ready at /app/model-artifacts")
PY
fi

# ------------------------------------------------------------
# 3) Env Vars für backend/app/main.py
# ------------------------------------------------------------
export APP_ENV="server"
export SERVER_HOST="0.0.0.0"
export SERVER_PORT="${PORT:-7860}"

export ERA5_DIR="$ERA5_PATH"
export FORECAST_MODEL_DIR="$MODEL_ROOT"

# Kompatibilitäts-Aliase (falls andere Module das erwarten)
export MODEL_DIR="$MODEL_ROOT"

# Turbine curves (liegen im Repo)
if [ -f "/app/backend/wind-power-climate-ml/data/turbine_power_curves.json" ]; then
  export TURBINE_CURVES_JSON="/app/backend/wind-power-climate-ml/data/turbine_power_curves.json"
elif [ -f "/app/backend/wind-power-climate-ml/Data/turbine_power_curves.json" ]; then
  export TURBINE_CURVES_JSON="/app/backend/wind-power-climate-ml/Data/turbine_power_curves.json"
else
  echo "[FATAL] turbine_power_curves.json not found in expected repo paths."
  exit 1
fi

echo "[CONFIG] ERA5_DIR=$ERA5_DIR"
echo "[CONFIG] FORECAST_MODEL_DIR=$FORECAST_MODEL_DIR"
echo "[CONFIG] TURBINE_CURVES_JSON=$TURBINE_CURVES_JSON"

# ------------------------------------------------------------
# 4) Start Uvicorn (robust: import app.main)
# ------------------------------------------------------------
export PYTHONPATH="/app/backend:/app/backend/model:/app/backend/wind-power-climate-ml/src:${PYTHONPATH:-}"

echo "[CHECK] /app/backend/app listing:"
ls -lah /app/backend/app || true

python - <<'PY'
import importlib, traceback
try:
    m = importlib.import_module("app.main")
    print("[BOOT] app.main imported OK. Has app?", hasattr(m, "app"))
    print("[BOOT] app =", getattr(m, "app", None))
except Exception:
    print("[FATAL] Import of app.main failed. Full traceback:")
    traceback.print_exc()
    raise SystemExit(1)
PY

# Uvicorn: lade app.main:app (entspricht /app/backend/app/main.py)
exec python -m uvicorn app.main:app --host 0.0.0.0 --port "${PORT:-7860}" --log-level info