Classify: bilateral$/$unilateral etc. Give all of the classifications.

Phil the owner of a hardware store, hires Heather and promises to pay her a specified salary $$500$ per week plus a reasonable percentage of the profits to be paid one year after she begins work. Heather agrees, but after a year Phil refuses to give Heather any of the profits, despite the business being very successful. Heather of course hires you and sues Phil for her share of the profits she was promised. Will Sue win, Why, Why not...Is there an enforceable contract.