#!/bin/bash
set -euo pipefail
KIND="${1:?kind}"; OUT_DIR="${2:?out_dir}"; NAME="${3:-codex_proj}"
mkdir -p "$OUT_DIR"
case "$KIND" in
  fastapi)
    mkdir -p "$OUT_DIR/$NAME/app"
    cat > "$OUT_DIR/$NAME/app/main.py" <<PY
from fastapi import FastAPI
app = FastAPI()
@app.get("/")
def read_root():
    return {"hello":"world","service":"$NAME"}
PY
    cat > "$OUT_DIR/$NAME/run.sh" <<'SH'
#!/bin/bash
set -euo pipefail
if ! command -v uvicorn >/dev/null 2>&1; then
  echo "Install FastAPI: python3 -m pip install fastapi uvicorn";
  exit 1
fi
uvicorn app.main:app --host 0.0.0.0 --port 8080
SH
    chmod +x "$OUT_DIR/$NAME/run.sh"
    ;;
  bash)
    cat > "$OUT_DIR/$NAME.sh" <<'SH'
#!/bin/bash
set -euo pipefail
echo "Hello from Codex scaffold (bash)!"
SH
    chmod +x "$OUT_DIR/$NAME.sh"
    ;;
  html)
    cat > "$OUT_DIR/index.html" <<HTML
<!doctype html><html><head><meta charset="utf-8"><title>$NAME</title></head>
<body><h1>$NAME</h1><p>Scaffolded by Codex.</p></body></html>
HTML
    ;;
  python_pkg)
    mkdir -p "$OUT_DIR/$NAME/$NAME"
    echo '__version__="0.1.0"' > "$OUT_DIR/$NAME/$NAME/__init__.py"
    cat > "$OUT_DIR/$NAME/setup.py" <<PY
from setuptools import setup, find_packages
setup(name="$NAME", version="0.1.0", packages=find_packages())
PY
    ;;
  *)
    echo "Unknown KIND: $KIND"; exit 2
    ;;
esac
echo "Scaffolded $KIND → $OUT_DIR"