CREATE EXTENSION IF NOT EXISTS "uuid-ossp";

DROP TABLE IF EXISTS contacts CASCADE;

CREATE TABLE contacts (
    id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
    phone_number TEXT NOT NULL,
    user_id UUID NOT NULL
);

CREATE TABLE messages (
    id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
    content TEXT NOT NULL,
    user_id UUID NOT NULL
);

CREATE TABLE scheduled_messages (
    id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
    scheduled timestamptz NOT NULL,
    created timestamptz DEFAULT now(),
    status TEXT CHECK (status IN ('PENDING', 'READY', 'PROCESSING', 'DONE')),
    user_id UUID NOT NULL
);

CREATE TABLE scheduled_message_events (
    id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
    recipient_id UUID NOT NULL,
    message_id UUID NOT NULL,
    scheduled_message_id UUID NOT NULL,
    created timestamptz DEFAULT now()
)