Nicki and Cardi entered into a contract to sell in which Nicki agreed to deliver 200 cogs

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Question:

Nicki and Cardi entered into a contract to sell in which Nicki agreed to deliver 200 cogs of a specified metal content to Cardi within thirty days at a price of $40 per cog. Due to an interruption in the supply of a required metal, which greatly increased the metal's price but did not eliminate the supply, Nicki failed to deliver the cogs to Cardi within the thirty-day period. Shortly after the thirty-day period expired, Cardi purchased the cogs from another supplier at the price of $100 per cog, which exceeded the $80 per cog price for which cogs were then readily available in the market. As a result of Nicki's failure to perform, Cardi filed suit against Nicki, seeking to recover damages from two lost sales to Cardi's customers, the additional cost Cardi incurred in purchasing the cogs from another supplier following Nicki's failure to deliver, non-pecuniary losses including mental anguish, and attorney's fees incurred in filing the suit against Nicki. Of the two lost sales,
one involved an existing customer with monthly purchase requirements that Cardi customarily fulfilled but was unable to fulfill due to Nicki's failure to deliver the cogs. The other lost sale could
not reasonably have been predicted. Each of the two lost sales had a verifiable loss of profit, based on Cardi's costs.

Is Cardi entitled to collect damages for breach of contract, and if so, what damages is she entitled to collect under the facts of the problem? Discuss.

What defenses, if any, does Nicki have to Cardi's claims for damages? Discuss.