-- migrate:up

CREATE TABLE domain.accounts (
    account_id  text PRIMARY KEY,
    name        text NOT NULL,
    app_key     text NOT NULL,
    is_active   boolean NOT NULL DEFAULT true,
    created_at  timestamptz NOT NULL DEFAULT now()
);

CREATE TABLE domain.vehicles (
    vehicle_id      bigserial PRIMARY KEY,
    plate           text NOT NULL UNIQUE,
    cost_centre     text,
    assigned_city   text,
    vehicle_class   text,
    service_interval_km_override int,
    created_at      timestamptz NOT NULL DEFAULT now(),
    updated_at      timestamptz NOT NULL DEFAULT now()
);

CREATE INDEX vehicles_cost_centre_idx ON domain.vehicles (cost_centre);
CREATE INDEX vehicles_assigned_city_idx ON domain.vehicles (assigned_city);

CREATE TABLE domain.devices (
    imei        text PRIMARY KEY,
    account_id  text NOT NULL REFERENCES domain.accounts(account_id),
    vehicle_id  bigint REFERENCES domain.vehicles(vehicle_id),
    device_type text NOT NULL CHECK (device_type IN ('tracker', 'camera')),
    model       text,
    lifecycle   text NOT NULL CHECK (lifecycle IN (
                    'provisioned',
                    'active',
                    'suspended',
                    'decommissioned'
                )),
    activation_at timestamptz,
    created_at  timestamptz NOT NULL DEFAULT now(),
    updated_at  timestamptz NOT NULL DEFAULT now()
);

CREATE INDEX devices_account_lifecycle_idx
    ON domain.devices (account_id, lifecycle);

CREATE INDEX devices_vehicle_idx
    ON domain.devices (vehicle_id)
    WHERE vehicle_id IS NOT NULL;

CREATE TABLE domain.devices_audit (
    audit_id        bigserial PRIMARY KEY,
    imei            text NOT NULL,
    from_lifecycle  text,
    to_lifecycle    text NOT NULL,
    actor           text NOT NULL,
    reason          text,
    occurred_at     timestamptz NOT NULL DEFAULT now()
);

CREATE INDEX devices_audit_imei_idx
    ON domain.devices_audit (imei, occurred_at DESC);

-- migrate:down

DROP TABLE IF EXISTS domain.devices_audit;
DROP TABLE IF EXISTS domain.devices;
DROP TABLE IF EXISTS domain.vehicles;
DROP TABLE IF EXISTS domain.accounts;