create database level_monitoring;
create extension timescaledb;



create table application_t (
    id serial not null primary key,
    device_id VARCHAR(32) NOT NULL UNIQUE,
    label varchar(16) not null unique,
    sensor_type varchar(16) not null,
    ground_level numeric(10, 0) not null
);

create table measurement_t (
    time timestamp without time zone not null,
    application_name varchar(16) not null,
    raw_level numeric(10, 0),
    level numeric(10, 0),
    status varchar(16),
    battery float
);

select create_hypertable('measurement_t', 'time');

insert into application_t (device_id, label, sensor_type, ground_level)
    values('eui-a84041a2c18341d6', 'deilbach', 'LDDS75', 300);

create user preprocessor password 'geheim';
grant select on application_t to preprocessor;
grant insert on measurement_t to preprocessor;