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/*
* (C) Copyright 1996- ECMWF.
*
* This software is licensed under the terms of the Apache Licence Version 2.0
* which can be obtained at http://www.apache.org/licenses/LICENSE-2.0.
* In applying this licence, ECMWF does not waive the privileges and immunities
* granted to it by virtue of its status as an intergovernmental organisation
* nor does it submit to any jurisdiction.
*/
/// @file test_filter.cc
/// @date Apr 2025
/// @author Emanuele Danovaro
#include <iostream>
#include <map>
#include <sstream>
#include <string>
#include <utility>
#include <vector>
#include "eckit/testing/Test.h"
#include "eckit/types/Date.h"
#include "eckit/utils/StringTools.h"
#include "eckit/utils/Tokenizer.h"
#include "metkit/mars/MarsParser.h"
#include "metkit/mars/MarsRequest.h"
#include "metkit/mars/Type.h"
namespace metkit::mars::test {
namespace {
using ExpectedVals = std::map<std::string, std::vector<std::string>>;
}
//-----------------------------------------------------------------------------
void filter(MarsRequest& r, const MarsRequest& f, const ExpectedVals& expected, const std::vector<long> dates) {
r.filter(f);
for (const auto& e : expected) {
if (!r.has(e.first)) {
std::cerr << eckit::Colour::red << "Missing keyword: " << e.first << eckit::Colour::reset << std::endl;
}
EXPECT(r.has(e.first));
auto vv = r.values(e.first);
if (e.first != "date") { // dates are verified at a later stage
EXPECT_EQUAL(e.second.size(), vv.size());
}
for (int i = 0; i < vv.size(); i++) {
if (e.first == "grid") {
EXPECT_EQUAL(eckit::StringTools::upper(e.second.at(i)), vv.at(i));
}
else {
EXPECT_EQUAL(e.second.at(i), vv.at(i));
}
}
}
if (dates.size() > 0) {
EXPECT(r.has("date"));
auto dd = r.values("date");
EXPECT_EQUAL(dates.size(), dd.size());
for (int i = 0; i < dates.size(); i++) {
long d = dates.at(i);
if (d < 0) {
eckit::Date day(d);
d = day.yyyymmdd();
}
EXPECT_EQUAL(std::to_string(d), dd.at(i));
}
}
}
void filter(const std::string& text, const std::string& filter_text, const ExpectedVals& expected,
std::vector<long> dates, bool strict = true) {
MarsRequest r = MarsRequest::parse(text, strict);
std::string f_text = "filter," + filter_text;
std::istringstream in(f_text);
metkit::mars::MarsParser parser(in);
std::vector<metkit::mars::MarsParsedRequest> f = parser.parse();
ASSERT(f.size() == 1);
filter(r, f[0], expected, std::move(dates));
}
void expand(const std::string& text, const std::string& filter_text, const std::string& expected, bool strict = true,
std::vector<long> dates = {}) {
ExpectedVals out;
eckit::Tokenizer c(",");
eckit::Tokenizer e("=");
eckit::Tokenizer s("/");
eckit::StringList tokens;
c(expected, tokens);
std::string verb;
for (const auto& t : tokens) {
if (verb.empty()) {
verb = eckit::StringTools::lower(t);
continue;
}
auto tt = eckit::StringTools::trim(t);
eckit::StringList kv;
e(tt, kv);
EXPECT_EQUAL(2, kv.size());
auto key = eckit::StringTools::lower(eckit::StringTools::trim(kv[0]));
if (key == "date") {
EXPECT_EQUAL(0, dates.size());
}
eckit::StringList vals;
s(kv[1], vals);
std::vector<std::string> vv;
for (auto v : vals) {
auto val = eckit::StringTools::trim(v);
if (key != "source" && key != "target") {
val = eckit::StringTools::lower(val);
}
if (key == "date") {
dates.push_back(std::stol(val));
}
else {
vv.push_back(val);
}
}
if (key != "date") {
out.emplace(key, vv);
}
}
MarsRequest r = MarsRequest::parse(text, strict);
std::string f_text = "filter," + filter_text;
std::istringstream in(f_text);
metkit::mars::MarsParser parser(in);
std::vector<metkit::mars::MarsParsedRequest> f = parser.parse();
ASSERT(f.size() == 1);
filter(r, f[0], out, std::move(dates));
}
CASE("day") {
const char* text = "ret,date=20250301/to/20250306";
const char* filter_text = "day=1/3/5/7/9/11/13/15/17/19/21/23/25/27/29/31";
ExpectedVals expected{{"class", {"od"}}, {"domain", {"g"}},
{"expver", {"0001"}}, {"levelist", {"1000", "850", "700", "500", "400", "300"}},
{"levtype", {"pl"}}, {"param", {"129"}},
{"step", {"0"}}, {"stream", {"oper"}},
{"time", {"1200"}}, {"type", {"an"}}};
filter(text, filter_text, expected, {20250301, 20250303, 20250305});
}
//-----------------------------------------------------------------------------
} // namespace metkit::mars::test
int main(int argc, char** argv) {
return eckit::testing::run_tests(argc, argv);
}
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