#include "Panel.h"
#include "../ManagementContext/StyleManagmentContext.h"
#include "../ImGui.h"
#include "MaterialIcons.h"
#include "../ManagementContext/PanelManagementContext.h"
#include <imgui.h>

bool Panel::beginCustomWindow(std::string title)
{
    if (state == DETACHED && PanelManagementContext::GetMode() != DEFAULT) {
        return false;
    }
    if (!ImGui::Begin(title.c_str(), (bool*)&state, ImGuiWindowFlags_NoTitleBar | (state == DETACHED ? 0 : ImGuiWindowFlags_NoResize))) {
        ImGui::End();
        return false;
    }
    isWindowActive = ImGui::IsItemActive();
    ImGui::Text(title.c_str(), nullptr);
    ImGui::SameLine();
    ImGui::PushFont(DearImGuiApp::MaterialIcons, 24.0f);
    StyleManagmentContext::Push(NOBORDER);

    ImVec2 cursor = ImGui::GetCursorScreenPos();
    ImVec2 avail = ImGui::GetContentRegionAvail();
    cursor.x += avail.x - 72.0f;
    cursor.y -= 2.0f;

    ImGui::SetCursorScreenPos(cursor);
    if (state == OPEN) {
        if (ImGui::SmallButton(ICON_MS_OPEN_IN_NEW)) {
            state = DETACHED;
            PanelManagementContext::PopMode();
        }
        ImGui::SameLine(); // Detach
    }
    else {
        if (ImGui::SmallButton(ICON_MS_REOPEN_WINDOW)) {
            state = OPEN;
            PanelManagementContext::PushMode(CONFIGURE);
        }
        ImGui::SameLine(); // Reattach
    }

    cursor.x += 36.0f;
    ImGui::SetCursorScreenPos(cursor);
    if (ImGui::SmallButton(ICON_MS_CLOSE)) {
        PanelManagementContext::Close(this);
    }
    cursor = ImGui::GetCursorScreenPos();
    cursor.y -= 2.0f;
    ImGui::SetCursorScreenPos(cursor);
    StyleManagmentContext::Pop();
    ImGui::PopFont();
    StyleManagmentContext::Push(BASECONTENTS);
    ImGui::SetNextWindowSize(ImGui::GetContentRegionAvail(), ImGuiCond_None);
    if (!ImGui::BeginChild((title + "Contents").c_str(), ImVec2(0, 0), ImGuiChildFlags_AutoResizeX | ImGuiChildFlags_AutoResizeY | ImGuiChildFlags_Borders | ImGuiChildFlags_NavFlattened)) {
        ImGui::EndChild();
        StyleManagmentContext::Pop();
        return false;
    }
    return true;
}

void Panel::endCustomWindow()
{
    if (state == OPEN && ImGui::IsMouseReleased(ImGuiMouseButton_Left) && !ImGui::IsWindowFocused(ImGuiFocusedFlags_RootAndChildWindows)) {
        PanelManagementContext::Close(this);
    }
    if (state == OPEN && ImGui::IsMouseDragging(ImGuiMouseButton_Left) && isWindowActive && ImGui::IsWindowFocused(ImGuiFocusedFlags_RootAndChildWindows)) {
        state = DETACHED;
        PanelManagementContext::PopMode();
    }
    ImGui::EndChild();
    StyleManagmentContext::Pop();
    ImGui::End();
}

void Panel::Toggle()
{
    switch (state) {
    case CLOSED:
        state = OPEN;
        break;
    default:
    case OPEN:
        state = CLOSED;
        break;
    }
}

PanelState Panel::GetState()
{
    return state;
}