#pragma once
#include <map>
#include <string>
#include <vector>

// ── DiscoveredPart ────────────────────────────────────────────────────────────
// One hardware component detected on the local machine, ready to send to the
// inventory server via CMD_UPSERT_PART.

struct DiscoveredPart {
    std::string type_name;                      // PTYPE_* constant, e.g. "memory_stick"
    std::map<std::string, std::string> kv;      // field-key → value (list fields use LS)
};

// ── Discovery ─────────────────────────────────────────────────────────────────
// Queries OS tools (dmidecode, lsblk, ip, sysctl, …) to detect hardware.
// All methods are non-throwing: failures produce empty results + stderr warnings.

class Discovery {
public:
    // Detect all supported part types.
    std::vector<DiscoveredPart> discover_all();

    // Detect parts of a single type (pass a PTYPE_* constant).
    std::vector<DiscoveredPart> discover(const std::string& type_name);

private:
    std::vector<DiscoveredPart> discover_memory_sticks();
    std::vector<DiscoveredPart> discover_memory_slots();
    std::vector<DiscoveredPart> discover_cpus();
    std::vector<DiscoveredPart> discover_cpu_slots();
    std::vector<DiscoveredPart> discover_disks();
    std::vector<DiscoveredPart> discover_nics();
    std::vector<DiscoveredPart> discover_gpus();

    // Run a shell command, return trimmed stdout (≤64 KB).  "" on failure.
    static std::string run_cmd(const std::string& cmd);

    // Parse dmidecode -t <type_num> output into a vector of field-map blocks.
    static std::vector<std::map<std::string, std::string>>
        parse_dmi(const std::string& type_num);
};