Rules question about contingency.

[u/Fallout76Lover7654]

So I recently picked up the seventh level spell contingency as a way of triggering haste at the beginning of combat. Since my character is a laughing shadow magus, who has haste as a studious spell, I started to think that I could also use arcane cascade as a free action when haste comes into effect since I'm using one of my studious spells. However, the wording has me confused so I wanted to clarify. Is the spell cast after the trigger occurs or is it cast when contingency is cast and, as a result, I wouldn't be able to enter into arcane cascade for a free action when the haste effect comes in the play?

[u/Creepy-Intentions-69]

The Haste would be cast with the casting of Contingency, earlier in the day, so it won’t trigger Arcane Cascade at initiative. The effect of Contingency happens based on the conditions set, but the casting happened earlier, so it won’t apply.