#include "ui.hpp"
#include "imgui.h"
#include "locales.hpp"

static float toast_timer = 0.0f;
static const char* toast_msg = nullptr;
void ui_helper_show_toast(const char* msg)
{
    toast_msg = msg;
    toast_timer = 3.0f;
}

void ui_helper_draw_toasts()
{
    if (toast_timer > 0.0f && toast_msg)
    {
        toast_timer -= ImGui::GetIO().DeltaTime;

        const float pad = 10.0f;
        const ImVec2 window_pos = ImVec2(
            ImGui::GetIO().DisplaySize.x - pad,
            ImGui::GetIO().DisplaySize.y - pad
        );
        const ImVec2 window_pos_pivot = ImVec2(1.0f, 1.0f);

        ImGui::SetNextWindowPos(window_pos, ImGuiCond_Always, window_pos_pivot);
        ImGui::SetNextWindowBgAlpha(0.85f); // semi-transparent

        ImGuiWindowFlags flags = ImGuiWindowFlags_NoDecoration |
                                ImGuiWindowFlags_AlwaysAutoResize |
                                ImGuiWindowFlags_NoFocusOnAppearing |
                                ImGuiWindowFlags_NoNav;

        if (ImGui::Begin("##Toast", nullptr, flags))
        {
            ImGui::TextUnformatted(toast_msg);
        }
        ImGui::End();
    }
}

void ui_helper_draw_required_tag()
{
    ImDrawList* draw_list = ImGui::GetWindowDrawList();

    const char* text = localize("form.required");
    ImVec2 text_pos = ImGui::GetCursorScreenPos();
    ImVec2 text_size = ImGui::CalcTextSize(text);
    text_pos.y += text_size.y/4.0f;

    ImVec4 bg_color = ImVec4(0.9f, 0.235f, 0.235f, 0.4f);  // Red background
    ImVec4 text_color = ImVec4(1.0f, 1.0f, 1.0f, 1.0f); // White text
    float rounding = 2.0f;
    float padding = 2.0f;

    // Background rectangle
    ImVec2 bg_min = ImVec2(text_pos.x - padding, text_pos.y - padding);
    ImVec2 bg_max = ImVec2(text_pos.x + text_size.x + padding, text_pos.y + text_size.y + padding);
    draw_list->AddRectFilled(bg_min, bg_max, ImColor(bg_color), rounding);

    // Foreground text
    ImGui::PushStyleColor(ImGuiCol_Text, text_color);
    ImGui::TextUnformatted(text);
    ImGui::PopStyleColor();
}