stig
/
src
/
stig
/
stig.cc
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#include "stig/stig.hh"
#include "stig/lang.hh"
#include "ob/term.hh"
namespace aec = OB::Term::ANSI_Escape_Codes;
#include "ob/belle.hh"
namespace Belle = OB::Belle;
#include "lib/json.hh"
using Json = nlohmann::json;
#include <unistd.h>
#include <cstddef>
#include <cmath>
#include <ctime>
#include <string>
#include <iostream>
#include <iomanip>
#include <vector>
#include <utility>
#include <optional>
namespace OB::Stig
{
// prototypes
void on_error(std::string const& str);
void on_http_error(Belle::Client& app);
std::pair<std::string, std::string> fuzzy_time(long int const sec);
void ostream_fmt(OB::Term::ostream& os, bool const is_term, bool const is_color);
void search_print(Json const& js, std::pair<int, int> rate, std::size_t page,
std::size_t per_page, std::string const& color);
void on_error(std::string const& str)
{
throw std::runtime_error(
str +
"\nview the help output with '-h'"
);
}
void on_http_error(Belle::Client& app)
{
app.on_http_error([&](auto& ctx)
{
on_error(ctx.ec.message());
});
}
template<typename T>
std::optional<T> json_value(Json const& js)
{
if (js.is_null())
{
return {};
}
return js.get<T>();
}
std::pair<std::string, std::string> fuzzy_time(long int const sec)
{
std::pair<std::string, std::string> res;
long int constexpr t_second {1};
long int constexpr t_minute {t_second * 60};
long int constexpr t_hour {t_minute * 60};
long int constexpr t_day {t_hour * 24};
long int constexpr t_week {t_day * 7};
long int constexpr t_month (t_day * 30.4);
long int constexpr t_year {t_month * 12};
std::time_t const now {std::time(nullptr)};
long int const dif {now - sec};
auto const fuzzy_string = [&](long int const time_ref, std::string const time_str)
{
long int const fuzzy (dif / time_ref);
res.first = std::to_string(fuzzy);
res.second = time_str;
};
if (dif >= t_year)
{
fuzzy_string(t_year, "Y");
}
else if (dif >= t_month)
{
fuzzy_string(t_month, "M");
}
else if (dif >= t_week)
{
fuzzy_string(t_week, "W");
}
else if (dif >= t_day)
{
fuzzy_string(t_day, "D");
}
else if (dif >= t_hour)
{
fuzzy_string(t_hour, "h");
}
else if (dif >= t_minute)
{
fuzzy_string(t_minute, "m");
}
else if (dif >= t_second)
{
fuzzy_string(t_second, "s");
}
else
{
res.first = "0";
res.second = "s";
}
return res;
}
void search(std::string const& host, std::string const& query,
std::string const& sort, std::string const& order, std::size_t page,
std::size_t per_page, std::string const& token, std::string const& color)
{
Json js;
std::pair<int, int> rate;
Belle::Client app {host, 443, true};
on_http_error(app);
Belle::Request req;
req.method(Belle::Method::get);
if (host == "api.github.com")
{
req.target("/search/repositories");
}
else
{
req.target("/api/v3/search/repositories");
}
req.set(Belle::Header::accept, "application/vnd.github.mercy-preview+json");
req.params().emplace("q", query);
req.params().emplace("sort", sort);
req.params().emplace("order", order);
req.params().emplace("page", std::to_string(page));
req.params().emplace("per_page", std::to_string(per_page));
if (! token.empty())
{
req.params().emplace("access_token", token);
}
app.on_http(req.move(), [&js, &rate](auto& ctx)
{
if (ctx.res.result() != Belle::Status::ok)
{
std::stringstream ss; ss
<< "HTTP "
<< "'" << ctx.res.result_int() << "'"
<< " " << ctx.res.reason();
on_error(ss.str());
return;
}
rate.first = std::stoi(std::string(ctx.res.at("X-RateLimit-Remaining")));
rate.second = std::stoi(std::string(ctx.res.at("X-RateLimit-Limit")));
js = Json::parse(std::move(ctx.res.body()));
});
auto const total = app.queue().size();
auto const completed = app.connect();
if (completed != total)
{
on_error("an HTTP error occurred");
}
search_print(js, rate, page, per_page, color);
}
void ostream_fmt(OB::Term::ostream& os, bool const is_term, bool const is_color)
{
os.indent(4);
os.first_wrap(false);
os.white_space(false);
os.escape_codes(is_color);
if (is_term)
{
os.width(OB::Term::width(STDOUT_FILENO));
}
else
{
os.line_wrap(false);
}
}
void search_print(Json const& js, std::pair<int, int> rate, std::size_t page,
std::size_t per_page, std::string const& color)
{
// is stdout a tty
bool is_term {OB::Term::is_term(STDOUT_FILENO)};
// color auto
bool is_color {is_term};
if (color == "on")
{
// color on
is_color = true;
}
else if (color == "off")
{
// color off
is_color = false;
}
// output formatter
OB::Term::ostream out {std::cout};
ostream_fmt(out, is_term, is_color);
for (auto const& e : js["items"])
{
auto const owner = e["owner"]["login"].get<std::string>();
auto const repo = e["name"].get<std::string>();
auto const stars = e["stargazers_count"].get<std::size_t>();
auto const fork = e["fork"].get<bool>();
auto const forks = e["forks_count"].get<std::size_t>();
auto const issues = e["open_issues_count"].get<std::size_t>();
auto const lang = json_value<std::string>(e["language"]).value_or("");
auto desc = json_value<std::string>(e["description"]).value_or("");
if (desc.size() > 256)
{
// limit repo description size to 256 chars
desc.erase(253);
desc.append("...");
}
std::string const fork_symbol {fork ? ">" : "<"};
std::pair<std::string, std::string> updated;
std::tm t = {};
std::stringstream ss (e["pushed_at"].get<std::string>());
if (ss >> std::get_time(&t, "%Y-%m-%dT%H:%M:%SZ"))
{
updated = fuzzy_time(std::mktime(&t));
}
out
<< aec::wrap(owner, {aec::fg_magenta, aec::bold}, is_color)
<< "/"
<< aec::wrap(repo, {aec::fg_white, aec::bold}, is_color)
<< " *"
<< aec::wrap(stars, {aec::fg_green, aec::bold}, is_color)
<< " " << fork_symbol
<< aec::wrap(forks, {aec::fg_blue, aec::bold}, is_color)
<< " !"
<< aec::wrap(issues, {aec::fg_cyan, aec::bold}, is_color)
<< " ["
<< aec::wrap(lang, {aec::fg_true(Lang::color(lang)), aec::bold}, is_color)
<< "] "
<< aec::wrap(updated.first, {aec::fg_yellow, aec::bold}, is_color)
<< aec::wrap(updated.second, {aec::fg_yellow, aec::bold}, is_color)
<< "\n";
if (! desc.empty())
{
out
<< OB::Term::iomanip::push()
<< desc
<< OB::Term::iomanip::pop();
}
}
auto const total_results = js["total_count"].get<std::size_t>();
auto const total_pages = static_cast<std::size_t>(std::ceil(static_cast<double>(total_results) / per_page));
if (total_pages == 0)
{
page = 0;
}
std::size_t begin_results {js["items"].size() ? 1ul : 0ul};
std::size_t end_results {per_page > total_results ? total_results : per_page};
if (begin_results && page > 1)
{
end_results = page * per_page;
begin_results = end_results - per_page + 1;
if (end_results > total_results)
{
end_results = total_results;
begin_results = total_results - (total_results % per_page);
}
if (page == total_pages)
{
++begin_results;
}
}
else if (! begin_results)
{
end_results = 0;
}
out
<< "\n"
<< aec::wrap(begin_results, {aec::fg_magenta, aec::bold}, is_color)
<< "-"
<< aec::wrap(end_results, {aec::fg_magenta, aec::bold}, is_color)
<< "/"
<< aec::wrap(total_results, {aec::fg_white, aec::bold}, is_color)
<< " results | "
<< aec::wrap(page, {aec::fg_magenta, aec::bold}, is_color)
<< "/"
<< aec::wrap(total_pages, {aec::fg_white, aec::bold}, is_color)
<< " pages | "
<< aec::wrap(rate.first, {aec::fg_magenta, aec::bold}, is_color)
<< "/"
<< aec::wrap(rate.second, {aec::fg_white, aec::bold}, is_color)
<< " limit"
<< "\n";
}
void readme(std::string const& host, std::string const& repo, std::string const& ref)
{
std::string res;
Belle::Client app {host, 443, true};
on_http_error(app);
Belle::Request req;
req.method(Belle::Method::get);
if (host == "api.github.com")
{
req.target("/repos/" + repo + "/readme");
}
else
{
req.target("/api/v3/repos/" + repo + "/readme");
}
req.set(Belle::Header::accept, "application/vnd.github.VERSION.raw");
if (! ref.empty())
{
req.params().emplace("ref", ref);
}
app.on_http(req.move(), [&res](auto& ctx)
{
if (ctx.res.result() != Belle::Status::ok)
{
std::stringstream ss; ss
<< "HTTP "
<< "'" << ctx.res.result_int() << "'"
<< " " << ctx.res.reason();
on_error(ss.str());
return;
}
res = std::move(ctx.res.body());
});
auto const total = app.queue().size();
auto const completed = app.connect();
if (completed != total)
{
on_error("an HTTP error occurred");
}
std::cout << res << std::flush;
}
} // namespace OB::Stig