import os
import sqlite3
from datetime import datetime
from flask import Flask, request, jsonify

app = Flask(__name__)

DB_PATH = os.environ.get("DB_PATH", "/app/db/app.sqlite3")

def get_db():
    os.makedirs(os.path.dirname(DB_PATH), exist_ok=True)
    conn = sqlite3.connect(DB_PATH)
    conn.row_factory = sqlite3.Row
    return conn

def init_db():
    with get_db() as conn:
        conn.execute("""
        CREATE TABLE IF NOT EXISTS rsvps (
            id INTEGER PRIMARY KEY AUTOINCREMENT,
            name TEXT NOT NULL,
            attending INTEGER NOT NULL,          -- 1 = ja, 0 = nein
            plus_one INTEGER NOT NULL DEFAULT 0, -- 1 = ja, 0 = nein
            created_at TEXT NOT NULL
        );
        """)
        conn.commit()

@app.get("/health")
def health():
    return {"status": "ok"}

@app.post("/api/rsvp")
def create_rsvp():
    data = request.get_json(force=True, silent=True) or {}
    name = (data.get("name") or "").strip()
    attending = data.get("attending")
    plus_one = data.get("plus_one", 0)

    if not name:
        return jsonify({"error": "name is required"}), 400
    if attending not in (0, 1, True, False):
        return jsonify({"error": "attending must be 0/1"}), 400

    attending_int = 1 if attending in (1, True) else 0
    plus_one_int = 1 if plus_one in (1, True) else 0

    with get_db() as conn:
        conn.execute(
            "INSERT INTO rsvps (name, attending, plus_one, created_at) VALUES (?, ?, ?, ?)",
            (name, attending_int, plus_one_int, datetime.utcnow().isoformat())
        )
        conn.commit()

    return jsonify({"ok": True})

@app.get("/api/rsvps")
def list_rsvps():
    with get_db() as conn:
        rows = conn.execute(
            "SELECT id, name, attending, plus_one, created_at FROM rsvps ORDER BY id DESC"
        ).fetchall()
    return jsonify([dict(r) for r in rows])

if __name__ == "__main__":
    init_db()
    app.run(host="0.0.0.0", port=5000)