package Ġcom . u os . sms ms m . repository Ċ Ċ import Ġcom . google . firebase . firestore . Firebase Fire store Ċ import Ġcom . u os . sms ms m . data . Report DTO Ċ import Ġkotlinx . coroutines . Experimental Cor outines Api Ċ import Ġkotlinx . coroutines . channels . await Close Ċ import Ġkotlinx . coroutines . channels . send Blocking Ċ import Ġkotlinx . coroutines . flow . callback Flow Ċ Ċ class ĠUtil Repository Ġ{ ĊĊĠĠĠ Ġprivate Ġval Ġdb Ġ= ĠFirebase Fire store . getInstance () ĊĊĠĠĠ Ġ@ Experimental Cor outines Api ĊĠĠĠ Ġfun Ġsave User Report ( report Data Ġ: ĠReport DTO . USER ) Ġ= Ġcallback Flow < Boolean > Ġ{ ĊĠĠĠĠĠĠĠ Ġval Ġdatabase Reference Ġ= Ġdb . collection (" User Report "). document () ĊĠĠĠĠĠĠĠ Ġval Ġevent Listener Ġ= Ġdatabase Reference . set ( report Data ) ĊĊĠĠĠĠĠĠĠ Ġevent Listener . add On Complete Listener Ġ{ Ġthis @ callback Flow . send Blocking ( true ) Ġ}. add On Failure Listener Ġ{ Ġthis @ callback Flow . send Blocking ( false ) Ġ} ĊĊĠĠĠĠĠĠĠ Ġawait Close Ġ{ Ġevent Listener Ġ} ĊĠĠĠ Ġ} Ċ Ċ }