tvl-depot/fun/dt/dt.cc
2020-05-08 18:55:00 +01:00

56 lines
1.4 KiB
C++

#include <iostream>
#include "absl/flags/flag.h"
#include "absl/flags/parse.h"
#include "absl/hash/hash.h"
#include "absl/time/time.h"
#include "absl/time/clock.h"
#include "absl/strings/str_cat.h"
#include "farmhash.h"
ABSL_FLAG(std::string, one, "", "first word");
ABSL_FLAG(std::string, two, "", "second word");
ABSL_FLAG(int, range, 100, "operating range");
void which(std::string one, std::string two) {
if (util::Fingerprint64(one) > util::Fingerprint64(two)) {
std::cout << one << std::endl;
} else {
std::cout << two << std::endl;
}
}
std::string decide(std::string one, std::string two) {
auto date = absl::FormatTime("%Y%m%d", absl::Now(), absl::UTCTimeZone());
auto base = util::Fingerprint64(absl::StrCat(date, one, two))
% (absl::GetFlag(FLAGS_range) + 1);
if (base % 10 == 0) {
return "c2";
} else if (base % 9 == 0) {
which(one, two);
return "c1";
} else if (base % 8 == 0) {
return "e2";
} else if (base % 7 == 0) {
which(one, two);
return "e1";
} else if (base % 3 == 0) {
return "skip";
}
return "nope";
}
int main(int argc, char *argv[]) {
absl::ParseCommandLine(argc, argv);
auto one = absl::GetFlag(FLAGS_one);
auto two = absl::GetFlag(FLAGS_two);
if (one.empty() || two.empty()) {
std::cerr << "both are required!" << std::endl;
return 1;
}
std::cout << decide(one, two) << std::endl;
}