-- AI Sales Assistant tables

CREATE TABLE IF NOT EXISTS ai_conversations (
    id UUID PRIMARY KEY DEFAULT uuid_generate_v4(),
    user_id UUID NOT NULL REFERENCES users(id) ON DELETE CASCADE,
    role VARCHAR(20) NOT NULL DEFAULT 'sales',
    message TEXT NOT NULL,
    response TEXT,
    created_at TIMESTAMPTZ NOT NULL DEFAULT NOW()
);

CREATE INDEX IF NOT EXISTS idx_ai_conversations_user ON ai_conversations(user_id);
CREATE INDEX IF NOT EXISTS idx_ai_conversations_created ON ai_conversations(created_at DESC);