logmeow/event_loop.cpp

#include <imgui.h>

#include "log.h"
#include "config.h"
#include "logcat_thread.h"

#include "windows/logs.h"
#include "windows/settings.h"
#include "windows/main.h"
#ifndef NDEBUG
    #include "windows/debug.h"
#endif

static inline void write_config_and_update_structures(const Config& config) {
    try {
        write_config(config);
    } catch (const std::exception& e) {
        log(std::string("Failed to write config: ") + e.what());
        return;
    }
}

static inline void check_for_logcat_items(LogcatThread& logcat_thread, std::vector<LogcatEntry>& filtered_logcat_entries) {
    LogcatThreadItem* logcat_thread_item;

    while ((logcat_thread_item = logcat_thread.atomic_ring_buffer.get())) {
        if (std::holds_alternative<std::string>(*logcat_thread_item)) {
            log_raw(std::move(std::get<std::string>(*logcat_thread_item)), false);
        } else if (std::holds_alternative<LogcatEntry>(*logcat_thread_item)) {
            filtered_logcat_entries.push_back(std::move(std::get<LogcatEntry>(*logcat_thread_item)));
        } else {
            throw std::runtime_error("Cannot handle all possible logcat thread item variants");
        }
        logcat_thread.atomic_ring_buffer.increment_read();
    }
}


void event_loop(ImFont* monospace_font, Config& config, float* config_write_timer, LogcatThread& logcat_thread, bool* run_event_loop) {
    static bool show_settings_window = false;
    static bool show_logs_window = false;
    static size_t log_entries_read = 0;
    static std::vector<LogcatEntry> filtered_logcat_entries;

    check_for_logcat_items(logcat_thread, filtered_logcat_entries);

#ifndef NDEBUG
    debug_window(logcat_thread);
#endif

    if (show_settings_window) {
        settings_window(config, config_write_timer, &show_settings_window);
    }
    if (*config_write_timer > 0.0f) {
        *config_write_timer -= ImGui::GetIO().DeltaTime;
        if (*config_write_timer <= 0.0f) {
            write_config_and_update_structures(config);
        }
    }

    if (show_logs_window) {
        bool autoscrolling = false;
        logs_window(monospace_font, &autoscrolling, &show_logs_window);
        if (autoscrolling) {
            log_entries_read = log_entries.size();
        }
    }

    // log_entries must not be mutated until the show logs button
    main_window(log_entries_read == log_entries.size(), monospace_font, filtered_logcat_entries, &show_settings_window, &show_logs_window, run_event_loop);
}