请英语高手能帮我分析一下句子结构,because there was a time when all I did was

这句话整句是一个因果复杂句的原因分句,由多层定语从句构成,
because there was a time when all (that) I did was wish
1 主句 There was a time,后面由 when 引导定语从句修饰 time
time 在定语从句中作时间状语
All I did was wish (at that time)
When 中主句 All was wish,（that）I did 为定语从句 修饰all ,定语从句恢复完整是 I did all (the things)
整句意思是：因为有一段时间,在那段时间里我所做的全部事情就是祈祷.
（wishi 这里是名词,意思是祝愿,实际意义是祈祷）