-- Phase 1.1: Create user_sessions table
-- Migration: 20260415000001

CREATE TABLE IF NOT EXISTS user_sessions (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    user_id UUID NOT NULL REFERENCES users(id) ON DELETE CASCADE,
    session_token TEXT UNIQUE NOT NULL,
    ip_address TEXT,
    user_agent TEXT,
    expires_at TIMESTAMPTZ NOT NULL,
    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
);

CREATE INDEX IF NOT EXISTS idx_user_sessions_user_id ON user_sessions(user_id);
CREATE INDEX IF NOT EXISTS idx_user_sessions_token ON user_sessions(session_token);
CREATE INDEX IF NOT EXISTS idx_user_sessions_expires ON user_sessions(expires_at);