-- Migration to convert sessions table to use UUIDs
-- We will recreate the table to ensure clean state as it is a critical table

DROP TABLE IF EXISTS sessions;

CREATE TABLE sessions (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    user_id UUID NOT NULL REFERENCES users(id) ON DELETE CASCADE,
    token_hash VARCHAR(255) NOT NULL UNIQUE,
    ip_address VARCHAR(45),
    user_agent TEXT,
    is_active BOOLEAN DEFAULT true,
    expires_at TIMESTAMPTZ,
    revoked_at TIMESTAMPTZ,
    created_at TIMESTAMPTZ DEFAULT NOW(),
    updated_at TIMESTAMPTZ DEFAULT NOW(),
    deleted_at TIMESTAMPTZ
);

CREATE INDEX idx_sessions_user_id ON sessions(user_id);
CREATE INDEX idx_sessions_token_hash ON sessions(token_hash);
CREATE INDEX idx_sessions_deleted_at ON sessions(deleted_at);