#include <cpu.hpp>

namespace cpu {

void detectHwmon(cpuSensors* target, std::string pci) {
    std::string path = "/sys/bus/pci/devices/" + pci + "/hwmon";

    try {
        for (const auto& entry : std::filesystem::directory_iterator(path))
            target->hwmon = getFirstDir(path);
    } catch (...) {
        log(LOG::ERR, "cpu::detectHwmon", "NO CPU HWMON KERNEL MODULE DETECTED");
        return;
    }
    target->zenpower = readFile((target->hwmon + "/name"), 128) == "zenpower";
    log(LOG::INF, "cpu::detectHwmon", "Detected module \"{}\" in path \"{}\"", target->zenpower ? "zenpower" : "k10temp", target->hwmon);
}

void update(cpuSensors* c) {
    // commented out unused values so its faster
    if (c->hwmon == "") return;  // break if no module
    if (c->zenpower) {
        // cpu.tdie = std::stoi(readFile(hw.path + "/temp1_input", 2));
        c->tctl = std::stoi(readFile(c->hwmon + "/temp2_input", 2));
        c->tccd1 = std::stoi(readFile(c->hwmon + "/temp3_input", 2));
        c->pcore = (double)(std::stoi(readFile(c->hwmon + "/power1_input", 3)) / 100.0);
        c->psoc = (double)(std::stoi(readFile(c->hwmon + "/power2_input", 3)) / 100.0);
        c->ptotal = c->pcore + c->psoc;
        c->vcore = (double)(std::stoul(readFile(c->hwmon + "/in1_input", 4)) / 1000.0);
        // cpu.vsoc = (double)(std::stoul(readFile(hw.path + "/in2_input")) / 1000.0);
    } else {
        c->tctl = std::stoi(readFile(c->hwmon + "/temp1_input", 2));
        c->tccd1 = std::stoi(readFile(c->hwmon + "/temp3_input", 2));
    }

    // lots of reads but still faster than reading /proc/cpuinfo
    char buf[5];
    for (uint8_t i = 0; i < N_CPU; i++) {
        readFile2("/sys/devices/system/cpu/cpu1/cpufreq/scaling_cur_freq", buf, sizeof(buf));
        c->avg_freq += strtol(buf, NULL, 10);
    }
    c->avg_freq /= N_CPU;
}

}  // namespace cpu