#pragma once

#include <string>

namespace fgc::hostmetrics {

// Host (LattePanda / Linux) health reads for the `test host` subsystem. Pure
// parsers are split from the live readers so they unit-test without a real /sys
// or /proc. All readers degrade gracefully (ok=false) rather than throw.

struct ThermalInfo {
    bool        ok = false;
    double      max_temp_c = 0.0;   // hottest thermal zone
    std::string hottest_zone;       // e.g. "x86_pkg_temp"
    bool        throttled = false;  // best-effort (false if unknown)
};

struct DiskInfo {
    bool        ok = false;
    std::string path;
    double      total_gb = 0.0;
    double      free_gb = 0.0;
    double      used_pct = 0.0;
};

struct MemInfo {
    bool   ok = false;
    double total_mb = 0.0;
    double avail_mb = 0.0;
    double swap_used_mb = 0.0;
};

struct LoadInfo {
    bool   ok = false;
    double load1 = 0.0, load5 = 0.0, load15 = 0.0;
    int    cpus = 0;
};

// ---- live readers ----
ThermalInfo readThermal();                       // scans /sys/class/thermal
DiskInfo    readDisk(const std::string& path);   // statvfs() on the filesystem holding `path`
MemInfo     readMeminfo();                        // /proc/meminfo
LoadInfo    readLoad();                           // getloadavg() + nproc

// ---- pure parsers (reused by the readers; exposed for tests) ----
MemInfo parseMeminfo(const std::string& proc_meminfo);
double  parseMilliCelsius(const std::string& zone_temp_contents);  // "52000\n" -> 52.0

}  // namespace fgc::hostmetrics