{-# STDLIB_VERSION 3 #-}
{-# CONTENT_TYPE DAPP #-}
{-# SCRIPT_TYPE ACCOUNT #-}

func getExtValueItemWhiteListStatus(item: String) = {
    item + "_verifier_status"
}

let verifier  = "3Mtzmtfh13ihJ3nJyyxT9zUvZRUKmNVDMa5"
let FEATURED = "featured"
let DELISTED = "delisted"
@Callable(i)
func setstatus(supplier: String, status: String) = {
    let account = toBase58String(i.caller.bytes)
    let hash = toBase58String(sha256(toBytes(supplier + status)))
    if ( account != verifier ) then throw("only oracle veryfier are able to manage whitelist")
    else if ( status != FEATURED && status != DELISTED ) then throw("wrong status")
    else {
        WriteSet([
            DataEntry(getExtValueItemWhiteListStatus(supplier), status),
            DataEntry("supplier+status_" + supplier + status, hash)
        ])
    }
}