/*  GamepadConfiguration.cpp
 *  PCSX2 Dev Team
 *  Copyright (C) 2015
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
 */

#include "GamepadConfiguration.h"

GamepadConfiguration::GamepadConfiguration(int pad, wxWindow *parent)
    : wxDialog(parent, wxID_ANY, _T("Gamepad"), wxDefaultPosition, wxDefaultSize,
               wxSYSTEM_MENU | wxCAPTION | wxCLOSE_BOX | wxCLIP_CHILDREN)
{
    m_pad_id = pad;

    wxBoxSizer *gamepad_box = new wxBoxSizer(wxVERTICAL);

    wxArrayString choices;
    for (const auto &j : s_vgamePad) {
        choices.Add(j->GetName());
    }

    m_joy_map = new wxChoice(this, wxID_ANY, wxDefaultPosition, wxDefaultSize, choices);
    m_cb_rumble = new wxCheckBox(this, enable_rumble_id, _T("&Enable rumble"));

    wxStaticBoxSizer *rumble_box = new wxStaticBoxSizer(wxVERTICAL, this, wxT("Rumble intensity"));
    m_sl_rumble_intensity = new wxSlider(this, rumble_slider_id, 0, 0, 0x7FFF, wxDefaultPosition, wxDefaultSize,
                                         wxSL_HORIZONTAL | wxSL_LABELS | wxSL_BOTTOM);

    wxStaticBoxSizer *joy_box = new wxStaticBoxSizer(wxVERTICAL, this, wxT("Joystick sensibility"));
    m_sl_joystick_sensibility = new wxSlider(this, joy_slider_id, 0, 0, 200, wxDefaultPosition, wxDefaultSize,
                                             wxSL_HORIZONTAL | wxSL_LABELS | wxSL_BOTTOM);

    gamepad_box->Add(m_joy_map, wxSizerFlags().Expand().Border(wxALL, 5));
    gamepad_box->Add(m_cb_rumble, wxSizerFlags().Expand());

    rumble_box->Add(m_sl_rumble_intensity, wxSizerFlags().Expand().Border(wxALL, 5));
    joy_box->Add(m_sl_joystick_sensibility, wxSizerFlags().Expand().Border(wxALL, 5));

    gamepad_box->Add(rumble_box, wxSizerFlags().Expand().Border(wxALL, 5));
    gamepad_box->Add(joy_box, wxSizerFlags().Expand().Border(wxALL, 5));

    gamepad_box->Add(CreateSeparatedButtonSizer(wxOK), wxSizerFlags().Right().Border(wxALL, 5));

    Bind(wxEVT_BUTTON, &GamepadConfiguration::OnOk, this, wxID_OK);
    Bind(wxEVT_SCROLL_THUMBRELEASE, &GamepadConfiguration::OnSliderReleased, this);
    Bind(wxEVT_CHECKBOX, &GamepadConfiguration::OnCheckboxChange, this);
    Bind(wxEVT_CHOICE, &GamepadConfiguration::OnChoiceChange, this);

    repopulate();

    SetSizerAndFit(gamepad_box);
}

/**
    Initialize the frame
    Check if a gamepad is detected
    Check if the gamepad support rumbles
*/
void GamepadConfiguration::InitGamepadConfiguration()
{
    repopulate(); // Set label and fit simulated key array
    /*
     * Check if there exist at least one pad available
     * if the pad id is 0, you need at least 1 gamepad connected,
     * if the pad id is 1, you need at least 2 gamepads connected,
     * Prevent to use a none initialized value on s_vgamePad (core dump)
    */
    if (s_vgamePad.size() >= m_pad_id + 1) {
        /*
         * Determine if the device can use rumble
         * Use TestForce with a very low strength (can't be felt)
         * May be better to create a new function in order to check only that
        */

        // Bad idea. Some connected devices might support rumble but not all connected devices.
        //        if (!s_vgamePad[m_pad_id]->TestForce(0.001f)) {
        //            wxMessageBox(L"Rumble is not available for your device.");
        //            m_cb_rumble->Disable();           // disable the rumble checkbox
        //            m_sl_rumble_intensity->Disable(); // disable the rumble intensity slider
        //        }
    } else {
        wxMessageBox(L"No gamepad detected.");
        m_sl_joystick_sensibility->Disable(); // disable the joystick sensibility slider
        m_cb_rumble->Disable();               // disable the rumble checkbox
        m_sl_rumble_intensity->Disable();     // disable the rumble intensity slider
    }
}

void GamepadConfiguration::OnOk(wxCommandEvent &event)
{
    Destroy();
}

/**
 * Slider event, called when the use release the slider button
 * @FIXME The current solution can't change the joystick sensibility and the rumble intensity
 *        for a specific gamepad. The same value is used for both
*/
void GamepadConfiguration::OnSliderReleased(wxCommandEvent &event)
{
    wxSlider *sl_tmp = (wxSlider *)event.GetEventObject();
    int sl_id = sl_tmp->GetId();

    if (sl_id == rumble_slider_id)
    {
        g_conf.set_ff_intensity(m_sl_rumble_intensity->GetValue());

        // convert in a float value between 0 and 1, and run rumble feedback.
        // 0 to 1 scales to 0x0 to 0x7FFF
        s_vgamePad[m_pad_id]->TestForce(m_sl_rumble_intensity->GetValue() / 0x7FFF);
    }
    else if (sl_id == joy_slider_id)
    {
        g_conf.set_sensibility(m_sl_joystick_sensibility->GetValue());
    }
}

/**
 * Checkbox event, called when the value of the checkbox change
*/
void GamepadConfiguration::OnCheckboxChange(wxCommandEvent &event)
{
    wxCheckBox *cb_tmp = (wxCheckBox *)event.GetEventObject(); // get the slider object
    int cb_id = cb_tmp->GetId();

    if (cb_id == enable_rumble_id)
    {
        g_conf.pad_options[m_pad_id].forcefeedback = (m_cb_rumble->GetValue()) ? (u32)1 : (u32)0;
        if (m_cb_rumble->GetValue())
        {
            s_vgamePad[m_pad_id]->TestForce();
            m_sl_rumble_intensity->Enable();
        }
        else
        {
            m_sl_rumble_intensity->Disable();
        }
    }
}

/*
 * Checkbox event, called when the value of the choice box change
 */
void GamepadConfiguration::OnChoiceChange(wxCommandEvent &event)
{
    wxChoice *choice_tmp = (wxChoice *)event.GetEventObject();
    int id = choice_tmp->GetSelection();
    if (id != wxNOT_FOUND)
    {
        g_conf.set_joy_uid(m_pad_id, GamePad::index_to_uid(id));
    }
}

/****************************************/
/*********** Methods functions **********/
/****************************************/

// Set button values
void GamepadConfiguration::repopulate()
{
    m_cb_rumble->SetValue(g_conf.pad_options[m_pad_id].forcefeedback);

    m_sl_rumble_intensity->SetValue(g_conf.get_ff_intensity());
    m_sl_joystick_sensibility->SetValue(g_conf.get_sensibility());

    u32 joyid = GamePad::uid_to_index(m_pad_id);
    if (joyid < m_joy_map->GetCount() && !m_joy_map->IsEmpty())
        m_joy_map->SetSelection(joyid);

    // enable rumble intensity slider if the checkbox is checked
    m_sl_rumble_intensity->Enable(m_cb_rumble->GetValue());
}