#pragma once

#include <cstddef>
#include <filesystem>
#include <optional>
#include <string>
#include <vector>

#include <mw/error.hpp>

#include "service_config.h"

/// A group of services displayed together in the web UI.
struct ServiceGroupConfig
{
    /// Group name shown in the web UI.
    std::string name;
    /// Service definitions in configuration order.
    std::vector<ServiceConfig> services;
};

/// Application settings represented independently of the configuration format.
struct Configuration
{
    /// Positive number of probe worker threads.
    std::size_t worker_count = 0;
    /// Path to the SQLite database used for status history.
    std::string database_path;
    /// Service groups in configuration order.
    std::vector<ServiceGroupConfig> groups;
    /// Unix-domain socket path; empty selects the default TCP listener.
    std::string unix_socket;
    /// Permission bits applied to the Unix-domain socket, when configured.
    std::optional<unsigned int> socket_permission;

    /// Load and validate a YAML configuration file.
    static mw::E<Configuration> fromYaml(
        const std::filesystem::path& path);
};