package app

import "database/sql"

func initializeDb(databaseUrl string) *sql.DB {
	db, err := sql.Open("sqlite3", databaseUrl)

	if err != nil {
		panic(err)
	}

	_, err = db.Exec(`CREATE TABLE IF NOT EXISTS sensor_values (
		timestamp INTEGER NOT NULL,
		sensor TEXT NOT NULL,
		value REAL NOT NULL
	);`)

	if err != nil {
		panic(err)
	}

	_, err = db.Exec(`CREATE TABLE IF NOT EXISTS sensor_config (
		sensor TEXT NOT NULL,
		key TEXT NOT NULL,
		value REAL NOT NULL,
		PRIMARY KEY (sensor, key)
	);`)

	if err != nil {
		panic(err)
	}

	return db
}