// ================================================================================
// ==      This file is a part of Turbo Badger. (C) 2011-2014, Emil Segerås      ==
// ==                     See tb_core.h for more information.                    ==
// ================================================================================

#include "tb_message_window.h"
#include "tb_widgets_reader.h"
#include "tb_editfield.h"
#include "tb_language.h"
#include <assert.h>

namespace tb {

// == TBMessageWindow =======================================================================================

TBMessageWindow::TBMessageWindow(TBWidget *target, TBID id)
    : m_target(target)
{
    TBWidgetListener::AddGlobalListener(this);
    SetID(id);
}

TBMessageWindow::~TBMessageWindow()
{
    TBWidgetListener::RemoveGlobalListener(this);
    if (TBWidget *dimmer = m_dimmer.Get())
    {
        dimmer->GetParent()->RemoveChild(dimmer);
        delete dimmer;
    }
}

bool TBMessageWindow::Show(const char *title, const char *message, TBMessageWindowSettings *settings, int width, int height)
{
    TBWidget *target = m_target.Get();
    if (!target)
        return false;

    TBMessageWindowSettings default_settings;
    if (!settings)
        settings = &default_settings;

    TBWidget *root = target->GetParentRoot();

    const char *source =    "TBLayout: axis: y, distribution: available\n"
                            "	TBLayout: distribution: available, size: available\n"
                            "		TBSkinImage: id: 2\n"
                            "		TBEditField: multiline: 1, readonly: 1, id: 1\n"
                            "	TBLayout: distribution: available\n"
                            "		TBLayout: distribution-position: left top, id: 5\n"
                            "		TBLayout: distribution-position: right bottom, id: 3\n";

    if (!g_widgets_reader->LoadData(GetContentRoot(), source))
        return false;

    SetText(title);

    GetWidgetByIDAndType<TBSkinImage>(2)->SetSkinBg(settings->icon_skin);

    TBEditField *editfield = GetWidgetByIDAndType<TBEditField>(1);
    editfield->SetStyling(settings->styling);
    editfield->SetText(message);
    editfield->SetSkinBg("");

    // Create buttons
    if (settings->msg == TB_MSG_OK)
    {
        AddButton("TBMessageWindow.ok", true);
    }
    else if (settings->msg == TB_MSG_OK_CANCEL)
    {
        AddButton("TBMessageWindow.ok", true);
        AddButton("TBMessageWindow.cancel", false);
    }
    else if (settings->msg == TB_MSG_YES_NO)
    {
        AddButton("TBMessageWindow.yes", true);
        AddButton("TBMessageWindow.no", false);
    }
    TBRect rect;

    // Size to fit content. This will use the default size of the textfield.
    if (width == 0 || height == 0)
    {
        ResizeToFitContent();

        rect = GetRect();
        // Get how much we overflow the textfield has given the current width, and grow our height to show all we can.
        // FIX: It would be better to use adapt-to-content on the editfield to achieve the most optimal size.
        // At least when we do full blown multi pass size checking.
        rect.h += editfield->GetStyleEdit()->GetOverflowY();

    }
    else
    {
        SetSize(width, height);
        rect = GetRect();
    }



    // Create background dimmer
    if (settings->dimmer)
    {
        if (TBDimmer *dimmer = new TBDimmer)
        {
            root->AddChild(dimmer);
            m_dimmer.Set(dimmer);
        }
    }

    // Center and size to the new height
    TBRect bounds(0, 0, root->GetRect().w,  root->GetRect().h);
    SetRect(rect.CenterIn(bounds).MoveIn(bounds).Clip(bounds));
    root->AddChild(this);
    return true;
}

void TBMessageWindow::AddButtonLeft(TBID id, bool focused)
{
    AddButton(id, focused, GetWidgetByIDAndType<TBLayout>(5));
}

void TBMessageWindow::AddButton(TBID id, bool focused, TBLayout *layout)
{
    if (!layout)
        layout = GetWidgetByIDAndType<TBLayout>(3);

    if (!layout)
        return;

    if (TBButton *btn = new TBButton)
    {
        btn->SetID(id);
        btn->SetText(g_tb_lng->GetString(btn->GetID()));
        layout->AddChild(btn);
        if (focused)
            btn->SetFocus(WIDGET_FOCUS_REASON_UNKNOWN);
    }
}

bool TBMessageWindow::OnEvent(const TBWidgetEvent &ev)
{
    if (ev.type == EVENT_TYPE_CLICK && ev.target->IsOfType<TBButton>())
    {
        TBWidgetSafePointer this_widget(this);

        // Invoke the click on the target
        TBWidgetEvent target_ev(EVENT_TYPE_CLICK);
        target_ev.ref_id = ev.target->GetID();
        InvokeEvent(target_ev);

        // If target got deleted, close
        if (this_widget.Get())
            Close();
        return true;
    }
    else if (ev.type == EVENT_TYPE_KEY_DOWN && ev.special_key == TB_KEY_ESC)
    {
        TBWidgetEvent click_ev(EVENT_TYPE_CLICK);
        m_close_button.InvokeEvent(click_ev);
        return true;
    }
    return TBWindow::OnEvent(ev);
}

void TBMessageWindow::OnDie()
{
    if (TBWidget *dimmer = m_dimmer.Get())
        dimmer->Die();
}

void TBMessageWindow::OnWidgetDelete(TBWidget *widget)
{
    // If the target widget is deleted, close!
    if (!m_target.Get())
        Close();
}

bool TBMessageWindow::OnWidgetDying(TBWidget *widget)
{
    // If the target widget or an ancestor of it is dying, close!
    if (widget == m_target.Get() || widget->IsAncestorOf(m_target.Get()))
        Close();
    return false;
}

}; // namespace tb