#include <imgui.h>
#include "imgui_impl_glfw_gl3.h"
#include <stdio.h>
#include <GL/gl3w.h>
#include <GLFW/glfw3.h>
#include <memory>

#include "../../server/TracyView.hpp"

static void error_callback(int error, const char* description)
{
    fprintf(stderr, "Error %d: %s\n", error, description);
}

int main(int, char**)
{
    // Setup window
    glfwSetErrorCallback(error_callback);
    if (!glfwInit())
        return 1;
    glfwWindowHint(GLFW_CONTEXT_VERSION_MAJOR, 3);
    glfwWindowHint(GLFW_CONTEXT_VERSION_MINOR, 3);
    glfwWindowHint(GLFW_OPENGL_PROFILE, GLFW_OPENGL_CORE_PROFILE);
#if __APPLE__
    glfwWindowHint(GLFW_OPENGL_FORWARD_COMPAT, GL_TRUE);
#endif
    GLFWwindow* window = glfwCreateWindow(1650, 960, "Tracy server", NULL, NULL);
    glfwMakeContextCurrent(window);
    glfwSwapInterval(1); // Enable vsync
    gl3wInit();

    // Setup ImGui binding
    ImGui_ImplGlfwGL3_Init(window, true);

    // Load Fonts
    // (there is a default font, this is only if you want to change it. see extra_fonts/README.txt for more details)
    //ImGuiIO& io = ImGui::GetIO();
    //io.Fonts->AddFontDefault();
    //io.Fonts->AddFontFromFileTTF("../../extra_fonts/Cousine-Regular.ttf", 15.0f);
    //io.Fonts->AddFontFromFileTTF("../../extra_fonts/DroidSans.ttf", 16.0f);
    //io.Fonts->AddFontFromFileTTF("../../extra_fonts/ProggyClean.ttf", 13.0f);
    //io.Fonts->AddFontFromFileTTF("../../extra_fonts/ProggyTiny.ttf", 10.0f);
    //io.Fonts->AddFontFromFileTTF("c:\\Windows\\Fonts\\ArialUni.ttf", 18.0f, NULL, io.Fonts->GetGlyphRangesJapanese());

    ImVec4 clear_color = ImColor(114, 144, 154);

    char addr[1024] = { "127.0.0.1" };
    std::unique_ptr<tracy::View> view;

    // Main loop
    while (!glfwWindowShouldClose(window))
    {
        glfwPollEvents();
        ImGui_ImplGlfwGL3_NewFrame();

        if( !view )
        {
            ImGui::Begin( "Connect to...", nullptr, ImGuiWindowFlags_AlwaysAutoResize | ImGuiWindowFlags_ShowBorders );
            ImGui::InputText( "Address", addr, 1024 );
            if( ImGui::Button( "Connect" ) && *addr )
            {
                view = std::make_unique<tracy::View>( addr );
            }
            ImGui::End();
        }
        else
        {
            view->Draw();
        }

        // Rendering
        int display_w, display_h;
        glfwGetFramebufferSize(window, &display_w, &display_h);
        glViewport(0, 0, display_w, display_h);
        glClearColor(clear_color.x, clear_color.y, clear_color.z, clear_color.w);
        glClear(GL_COLOR_BUFFER_BIT);
        ImGui::Render();
        glfwSwapBuffers(window);
    }

    // Cleanup
    ImGui_ImplGlfwGL3_Shutdown();
    glfwTerminate();

    return 0;
}

#ifdef _WIN32
#include <stdlib.h>
int WINAPI WinMain( HINSTANCE hInstance, HINSTANCE hPrevInstance, LPSTR lpszCmd, int nCmd )
{
    return main( __argc, __argv );
}
#endif