#include "parselink/msgpack/token.h"

#include <fmt/format.h>

#include <chrono>
#include <cstdlib>
#include <fcntl.h>
#include <vector>

using namespace std::chrono_literals;

auto read_file(char const* filename) {
    std::vector<std::byte> data;
    auto fd = open(filename, O_RDONLY);
    if (!fd) {
        fmt::print("Could not open {}: {}\n", filename, strerror(errno));
        return data;
    }

    auto size = lseek(fd, 0, SEEK_END);
    data.resize(size);
    lseek(fd, 0, SEEK_SET);

    fmt::print("Reading {} bytes from {}\n", size, filename);
    read(fd, data.data(), data.size());
    close(fd);

    return data;
}

int main(int argc, char** argv) {

    std::array<msgpack::token, 4096> buf;

    auto data = read_file(argc < 2 ? "output.bin" : argv[1]);

    msgpack::token_reader reader(data);

    auto before = std::chrono::steady_clock::now();
    auto test = reader.read_some(buf);
    auto after = std::chrono::steady_clock::now();
    test.map([&](auto sp){
        fmt::print("Read {} tokens\n", sp.size());
    }).map_error([&](auto err){
        fmt::print("Failed to read tokens: {}\n", (int)err);
    });
    fmt::print("Took {} us\n", (after - before) / 1us);
}