#pragma once

#include "fgc/CameraSettingsXml.h"

#include <map>
#include <string>
#include <vector>

namespace fgc {

// One named camera profile: a VimbaX Viewer settings export, plus the generated
// record beside it.
//
// A profile named X is <profile_dir>/X.xml, and X.txt is a human-readable record
// of what that XML contains. Only the XML is ever applied - the program hands
// the path to the Vimba X SDK, so the camera receives exactly the combination
// the Viewer validated. `settings` is parsed for display and diffing, never to
// configure anything.
struct CameraProfile {
    std::string    name;      // filename stem
    std::string    xml_path;  // what actually gets applied
    std::string    txt_path;  // the generated record
    CameraSettings settings;  // parsed from the XML, for reading and diffing
};

// What a load did, so the caller can report it. `first_run` distinguishes "there was no record to compare against" from "the
// settings changed": on a first load every setting would otherwise be reported
// as new, which for a real export is thousands of lines and no information.
struct ProfileLoadResult {
    bool                     regenerated = false;
    bool                     first_run   = false;  // no previous record existed
    std::vector<std::string> changes;              // empty when first_run
};

// Load a profile: hash the XML, compare against the hash recorded in the .txt,
// and regenerate the record when they differ.
//
// Throws std::runtime_error if the XML is missing or unreadable. There is
// deliberately no fallback to the .txt: it is a record, not a configuration
// source, and applying one would defeat the point of the GUI validating the XML.
CameraProfile loadCameraProfile(const std::string& profile_dir, const std::string& name,
                                ProfileLoadResult& result);

// Every *.xml in `dir`, keyed by profile name. Throws if the directory is
// missing or holds no profiles, so a typo in a profile nobody is using today
// still fails at startup rather than the first time someone switches to it.
std::map<std::string, CameraProfile> loadCameraProfiles(
    const std::string& dir, std::map<std::string, ProfileLoadResult>& results);

}  // namespace fgc