-- -- name: CreateReferralCode :one
-- INSERT INTO referral_codes (
--               referral_code,
--               referrer_id,
--               company_id,
--               number_of_referrals,
--               reward_amount
--        )
-- VALUES ($1, $2, $3, $4, $5)
-- RETURNING *;
-- -- name: CreateUserReferral :one
-- INSERT INTO user_referrals (referred_id, referral_code_id)
-- VALUES ($1, $2)
-- RETURNING *;
-- -- name: GetReferralCodeByUser :many
-- SELECt *
-- FROM referral_codes
-- WHERE referrer_id = $1;
-- -- name: GetReferralCode :one
-- SELECT *
-- FROM referral_codes
-- WHERE referral_code = $1;
-- -- name: UpdateReferralCode :exec
-- UPDATE referral_codes
-- SET is_active = $2,
--        referral_code = $3,
--        number_of_referrals = $4,
--        reward_amount = $5,
--        updated_at = CURRENT_TIMESTAMP
-- WHERE id = $1;
-- -- name: GetReferralStats :one
-- SELECT COUNT(*) AS total_referrals,
--        COALESCE(SUM(reward_amount), 0)::bigint AS total_reward_earned
-- FROM user_referrals
--        JOIN referral_codes ON referral_codes.id = referral_code_id
-- WHERE referrer_id = $1
--        AND company_id = $2;
-- -- name: GetUserReferral :one
-- SELECT *
-- FROM user_referrals
-- WHERE referred_id = $1;
-- -- name: GetUserReferralsByCode :many
-- SELECT user_referrals.*
-- FROM user_referrals
--        JOIN referral_codes ON referral_codes.id = referral_code_id
-- WHERE referral_code = $1;
-- -- name: GetUserReferralsCount :one
-- SELECT COUNT(*)
-- FROM user_referrals
--        JOIN referral_codes ON referral_codes.id = referral_code_id
-- WHERE referrer_id = $1;