-- Migration: Create company_followers table
-- Description: Table for users following companies

CREATE TABLE IF NOT EXISTS company_followers (
    id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
    user_id UUID NOT NULL REFERENCES users(id) ON DELETE CASCADE,
    company_id UUID NOT NULL REFERENCES companies(id) ON DELETE CASCADE,
    created_at TIMESTAMP WITH TIME ZONE NOT NULL DEFAULT NOW(),
    UNIQUE(user_id, company_id)
);

CREATE INDEX IF NOT EXISTS idx_company_followers_user_id ON company_followers(user_id);
CREATE INDEX IF NOT EXISTS idx_company_followers_company_id ON company_followers(company_id);

COMMENT ON TABLE company_followers IS 'Users following companies for job notifications';