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Use ranges instead of vectors for listing text products

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This commit is contained in:
Dan Paulat 2025-04-13 01:20:52 -05:00
parent 7a8a0302e0
commit e82fa93fb0
2 changed files with 34 additions and 17 deletions
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31
wxdata/source/scwx/provider/iem_api_provider.cpp
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@ -6,7 +6,9 @@
#include <boost/json.hpp>
#include <cpr/cpr.h>
#include <range/v3/range/conversion.hpp>
#include <range/v3/view/cartesian_product.hpp>
#include <range/v3/view/single.hpp>
#if (__cpp_lib_chrono < 201907L)
# include <date/date.h>
@ -50,17 +52,18 @@ IemApiProvider::ListTextProducts(std::chrono::sys_time<std::chrono::days> date,
std::string_view pil =
optionalPil.has_value() ? optionalPil.value() : std::string_view {};
return ListTextProducts(
std::vector<std::chrono::sys_time<std::chrono::days>> {date},
{cccc},
{pil});
const auto dateArray = std::array {date};
const auto ccccArray = std::array {cccc};
const auto pilArray = std::array {pil};
return ListTextProducts(dateArray, ccccArray, pilArray);
}
boost::outcome_v2::result<std::vector<std::string>>
IemApiProvider::ListTextProducts(
std::vector<std::chrono::sys_time<std::chrono::days>> dates,
std::vector<std::string_view> ccccs,
std::vector<std::string_view> pils)
ranges::any_view<std::chrono::sys_time<std::chrono::days>> dates,
ranges::any_view<std::string_view> ccccs,
ranges::any_view<std::string_view> pils)
{
using namespace std::chrono;
@ -75,20 +78,24 @@ IemApiProvider::ListTextProducts(
# define kDateFormat "%Y-%m-%d"
#endif
if (ccccs.empty())
if (ccccs.begin() == ccccs.end())
{
ccccs.push_back({});
ccccs = ranges::views::single(std::string_view {});
}
if (pils.empty())
if (pils.begin() == pils.end())
{
pils.push_back({});
pils = ranges::views::single(std::string_view {});
}
const auto dv = ranges::to<std::vector>(dates);
const auto cv = ranges::to<std::vector>(ccccs);
const auto pv = ranges::to<std::vector>(pils);
std::vector<cpr::AsyncResponse> responses {};
for (const auto& [date, cccc, pil] :
ranges::views::cartesian_product(dates, ccccs, pils))
ranges::views::cartesian_product(dv, cv, pv))
{
auto parameters =
cpr::Parameters {{"date", df::format(kDateFormat, date)}};