#include "ModeratorActionsWnd.h"

#include "ClientUI.h"
#include "CUIControls.h"
#include "../util/i18n.h"
#include "../util/OptionsDB.h"
#include "../util/AppInterface.h"
#include "../Empire/EmpireManager.h"
#include "../Empire/Empire.h"
#include "../universe/Enums.h"
#include "TextBrowseWnd.h"

#include <GG/Button.h>

#include <iterator>


namespace {
    const GG::X CONTROL_WIDTH(32);
    const GG::Y CONTROL_HEIGHT(32);
    const GG::X DROP_WIDTH(96);
    const int   PAD(3);
}

////////////////////////////////////////////////
// ModeratorActionsWnd
////////////////////////////////////////////////
ModeratorActionsWnd::ModeratorActionsWnd(const std::string& config_name) :
    CUIWnd(UserString("MODERATOR"),
           GG::ONTOP | GG::INTERACTIVE | GG::DRAGABLE | GG::RESIZABLE | CLOSABLE | PINABLE,
           config_name, false),
    m_actions_enabled(true),
    m_selected_action(MAS_NoAction)
{}

void ModeratorActionsWnd::CompleteConstruction() {
    ClientUI* ui = ClientUI::GetClientUI();
    GG::Flags<GG::GraphicStyle> style = GG::GRAPHIC_CENTER | GG::GRAPHIC_VCENTER | GG::GRAPHIC_FITGRAPHIC | GG::GRAPHIC_PROPSCALE;

    boost::filesystem::path button_texture_dir = ClientUI::ArtDir() / "icons" / "buttons";

    // button for no action
    m_no_action_button = Wnd::Create<CUIButton>(
        GG::SubTexture(ClientUI::GetTexture(button_texture_dir / "nomoderatoraction.png")),
        GG::SubTexture(ClientUI::GetTexture(button_texture_dir / "nomoderatoraction_clicked.png")),
        GG::SubTexture(ClientUI::GetTexture(button_texture_dir / "nomoderatoraction_mouseover.png")));

    m_no_action_button->SetBrowseModeTime(GetOptionsDB().Get<int>("ui.tooltip.delay"));
    m_no_action_button->SetBrowseInfoWnd(GG::Wnd::Create<TextBrowseWnd>(
        UserString("MOD_NONE"), UserString("MOD_NONE")));
    AttachChild(m_no_action_button);
    m_no_action_button->LeftClickedSignal.connect(boost::bind(&ModeratorActionsWnd::NoAction, this));

    // button for create system and droplist to select system type to create
    m_create_system_button = Wnd::Create<CUIButton>(
        GG::SubTexture(ClientUI::GetTexture(button_texture_dir / "addstar.png")),
        GG::SubTexture(ClientUI::GetTexture(button_texture_dir / "addstar_clicked.png")),
        GG::SubTexture(ClientUI::GetTexture(button_texture_dir / "addstar_mouseover.png")));

    m_create_system_button->SetBrowseModeTime(GetOptionsDB().Get<int>("ui.tooltip.delay"));
    m_create_system_button->SetBrowseInfoWnd(GG::Wnd::Create<TextBrowseWnd>(
        UserString("MOD_CREATE_SYSTEM"), UserString("MOD_CREATE_SYSTEM")));
    AttachChild(m_create_system_button);

    m_create_system_button->LeftClickedSignal.connect(boost::bind(&ModeratorActionsWnd::CreateSystem, this));
    m_star_type_drop = GG::Wnd::Create<CUIDropDownList>(6);
    m_star_type_drop->Resize(GG::Pt(DROP_WIDTH, CONTROL_HEIGHT));
    for (StarType star_type = STAR_BLUE; star_type != NUM_STAR_TYPES; star_type = StarType(star_type + 1)) {
        std::shared_ptr<GG::Texture> disc_texture = ui->GetModuloTexture(
            ClientUI::ArtDir() / "stars", ClientUI::StarTypeFilePrefixes()[star_type], 0);
        auto row = GG::Wnd::Create<GG::DropDownList::Row>();
        auto icon = GG::Wnd::Create<GG::StaticGraphic>(disc_texture, style);
        icon->Resize(GG::Pt(CONTROL_WIDTH, CONTROL_HEIGHT));
        row->push_back(icon);
        m_star_type_drop->Insert(row);
    }
    m_star_type_drop->Select(m_star_type_drop->begin());        // default select first type
    m_star_type_drop->SelChangedSignal.connect(boost::bind(&ModeratorActionsWnd::CreateSystem, this));

    // button for create planet and droplists to select planet type and size
    m_create_planet_button = Wnd::Create<CUIButton>(
        GG::SubTexture(ClientUI::GetTexture(button_texture_dir / "addplanet.png")),
        GG::SubTexture(ClientUI::GetTexture(button_texture_dir / "addplanet_clicked.png")),
        GG::SubTexture(ClientUI::GetTexture(button_texture_dir / "addplanet_mouseover.png")));

    m_create_planet_button->SetBrowseModeTime(GetOptionsDB().Get<int>("ui.tooltip.delay"));
    m_create_planet_button->SetBrowseInfoWnd(GG::Wnd::Create<TextBrowseWnd>(
        UserString("MOD_CREATE_PLANET"), UserString("MOD_CREATE_PLANET")));
    AttachChild(m_create_planet_button);
    m_create_planet_button->LeftClickedSignal.connect(boost::bind(&ModeratorActionsWnd::CreatePlanet, this));

    m_planet_type_drop = GG::Wnd::Create<CUIDropDownList>(6);
    m_planet_type_drop->Resize(GG::Pt(DROP_WIDTH, CONTROL_HEIGHT));
    for (PlanetType planet_type = PT_SWAMP; planet_type != NUM_PLANET_TYPES; planet_type = PlanetType(planet_type + 1)) {
        std::shared_ptr<GG::Texture> texture = ClientUI::PlanetIcon(planet_type);
        auto row = GG::Wnd::Create<GG::DropDownList::Row>();
        auto icon = GG::Wnd::Create<GG::StaticGraphic>(texture, style);
        icon->Resize(GG::Pt(CONTROL_WIDTH, CONTROL_HEIGHT));
        row->push_back(icon);
        m_planet_type_drop->Insert(row);
    }
    m_planet_type_drop->Select(m_planet_type_drop->begin());    // default select first type
    m_planet_type_drop->SelChangedSignal.connect(boost::bind(&ModeratorActionsWnd::CreatePlanet, this));

    m_planet_size_drop = GG::Wnd::Create<CUIDropDownList>(6);
    m_planet_size_drop->Resize(GG::Pt(DROP_WIDTH, CONTROL_HEIGHT));
    for (PlanetSize planet_size = SZ_TINY; planet_size != NUM_PLANET_SIZES; planet_size = PlanetSize(planet_size + 1)) {
        std::shared_ptr<GG::Texture> texture = ClientUI::PlanetSizeIcon(planet_size);
        auto row = GG::Wnd::Create<GG::DropDownList::Row>();
        auto icon = GG::Wnd::Create<GG::StaticGraphic>(texture, style);
        icon->Resize(GG::Pt(CONTROL_WIDTH, CONTROL_HEIGHT));
        row->push_back(icon);
        m_planet_size_drop->Insert(row);
    }
    GG::DropDownList::iterator it = m_planet_size_drop->begin();
    std::advance(it, 2);
    m_planet_size_drop->Select(it); // default select 3rd size (should be medium?)
    m_planet_size_drop->SelChangedSignal.connect(boost::bind(&ModeratorActionsWnd::CreatePlanet, this));

    // button for destroying object
    m_delete_object_button = Wnd::Create<CUIButton>(
        GG::SubTexture(ClientUI::GetTexture(button_texture_dir / "delete.png")),
        GG::SubTexture(ClientUI::GetTexture(button_texture_dir / "delete_clicked.png")),
        GG::SubTexture(ClientUI::GetTexture(button_texture_dir / "delete_mouseover.png")));

    m_delete_object_button->SetBrowseModeTime(GetOptionsDB().Get<int>("ui.tooltip.delay"));
    m_delete_object_button->SetBrowseInfoWnd(GG::Wnd::Create<TextBrowseWnd>(
        UserString("MOD_DESTROY"), UserString("MOD_DESTROY")));
    AttachChild(m_delete_object_button);
    m_delete_object_button->LeftClickedSignal.connect(boost::bind(&ModeratorActionsWnd::DeleteObject, this));

    // button for setting owner
    m_set_owner_button = Wnd::Create<CUIButton>(
        GG::SubTexture(ClientUI::GetTexture(button_texture_dir / "setowner.png")),
        GG::SubTexture(ClientUI::GetTexture(button_texture_dir / "setowner_clicked.png")),
        GG::SubTexture(ClientUI::GetTexture(button_texture_dir / "setowner_mouseover.png")));

    m_set_owner_button->SetBrowseModeTime(GetOptionsDB().Get<int>("ui.tooltip.delay"));
    m_set_owner_button->SetBrowseInfoWnd(GG::Wnd::Create<TextBrowseWnd>(
        UserString("MOD_SET_OWNER"), UserString("MOD_SET_OWNER")));
    AttachChild(m_set_owner_button);

    m_set_owner_button->LeftClickedSignal.connect(boost::bind(&ModeratorActionsWnd::SetOwner, this));
    m_empire_drop = GG::Wnd::Create<CUIDropDownList>(6);
    m_empire_drop->SetStyle(GG::LIST_NOSORT);
    // empires added later when gamestate info available
    m_empire_drop->SelChangedSignal.connect(boost::bind(&ModeratorActionsWnd::SetOwner, this));

    // button for creating starlane
    m_add_starlane_button = Wnd::Create<CUIButton>(
        GG::SubTexture(ClientUI::GetTexture(button_texture_dir / "addstarlane.png")),
        GG::SubTexture(ClientUI::GetTexture(button_texture_dir / "addstarlane_clicked.png")),
        GG::SubTexture(ClientUI::GetTexture(button_texture_dir / "addstarlane_mouseover.png")));

    m_add_starlane_button->SetBrowseModeTime(GetOptionsDB().Get<int>("ui.tooltip.delay"));
    m_add_starlane_button->SetBrowseInfoWnd(GG::Wnd::Create<TextBrowseWnd>(
        UserString("MOD_ADD_STARLANE"), UserString("MOD_ADD_STARLANE")));
    AttachChild(m_add_starlane_button);
    m_add_starlane_button->LeftClickedSignal.connect(boost::bind(&ModeratorActionsWnd::AddStarlane, this));

    // button for removing starlane
    m_remove_starlane_button = Wnd::Create<CUIButton>(
        GG::SubTexture(ClientUI::GetTexture(button_texture_dir / "removestarlane.png")),
        GG::SubTexture(ClientUI::GetTexture(button_texture_dir / "removestarlane_clicked.png")),
        GG::SubTexture(ClientUI::GetTexture(button_texture_dir / "removestarlane_mouseover.png")));

    m_remove_starlane_button->SetBrowseModeTime(GetOptionsDB().Get<int>("ui.tooltip.delay"));
    m_remove_starlane_button->SetBrowseInfoWnd(GG::Wnd::Create<TextBrowseWnd>(
        UserString("MOD_REMOVE_STARLANE"), UserString("MOD_REMOVE_STARLANE")));
    AttachChild(m_remove_starlane_button);
    m_remove_starlane_button->LeftClickedSignal.connect(boost::bind(&ModeratorActionsWnd::RemoveStarlane, this));

    CUIWnd::CompleteConstruction();

    DoLayout();
    SaveDefaultedOptions();
}

ModeratorActionsWnd::~ModeratorActionsWnd()
{}

void ModeratorActionsWnd::NoAction() {
    m_selected_action = MAS_NoAction;
    NoActionSelectedSignal();
    DetachChild(m_star_type_drop);
    DetachChild(m_planet_type_drop);
    DetachChild(m_planet_size_drop);
    DetachChild(m_empire_drop);
}

void ModeratorActionsWnd::CreateSystem() {
    m_selected_action = MAS_CreateSystem;
    CreateSystemActionSelectedSignal(SelectedStarType());
    AttachChild(m_star_type_drop);
    DetachChild(m_planet_type_drop);
    DetachChild(m_planet_size_drop);
    DetachChild(m_empire_drop);
}

void ModeratorActionsWnd::CreatePlanet() {
    m_selected_action = MAS_CreatePlanet;
    CreatePlanetActionSelectedSignal(SelectedPlanetType());
    DetachChild(m_star_type_drop);
    AttachChild(m_planet_type_drop);
    AttachChild(m_planet_size_drop);
    DetachChild(m_empire_drop);
}

void ModeratorActionsWnd::DeleteObject() {
    m_selected_action = MAS_Destroy;
    DeleteObjectActionSelectedSignal();
    DetachChild(m_star_type_drop);
    DetachChild(m_planet_type_drop);
    DetachChild(m_planet_size_drop);
    DetachChild(m_empire_drop);
}

void ModeratorActionsWnd::SetOwner() {
    m_selected_action = MAS_SetOwner;
    SetOwnerActionSelectedSignal(SelectedEmpire());
    DetachChild(m_star_type_drop);
    DetachChild(m_planet_type_drop);
    DetachChild(m_planet_size_drop);
    AttachChild(m_empire_drop);
}

void ModeratorActionsWnd::AddStarlane() {
    m_selected_action = MAS_AddStarlane;
    AddStarlaneActionSelectedSignal();
    DetachChild(m_star_type_drop);
    DetachChild(m_planet_type_drop);
    DetachChild(m_planet_size_drop);
    DetachChild(m_empire_drop);
}

void ModeratorActionsWnd::RemoveStarlane() {
    m_selected_action = MAS_RemoveStarlane;
    AddStarlaneActionSelectedSignal();
    DetachChild(m_star_type_drop);
    DetachChild(m_planet_type_drop);
    DetachChild(m_planet_size_drop);
    DetachChild(m_empire_drop);
}

ModeratorActionSetting ModeratorActionsWnd::SelectedAction() const
{ return m_selected_action; }

PlanetType ModeratorActionsWnd::SelectedPlanetType() const
{ return PlanetTypeFromIndex(m_planet_type_drop->CurrentItemIndex()); }

PlanetSize ModeratorActionsWnd::SelectedPlanetSize() const
{ return PlanetSizeFromIndex(m_planet_size_drop->CurrentItemIndex()); }

StarType ModeratorActionsWnd::SelectedStarType() const
{ return StarTypeFromIndex(m_star_type_drop->CurrentItemIndex()); }

int ModeratorActionsWnd::SelectedEmpire() const
{ return EmpireIDFromIndex(m_empire_drop->CurrentItemIndex()); }

void ModeratorActionsWnd::DoLayout() {
    GG::X left = GG::X0 + PAD;
    GG::Y top = GG::Y0 + PAD;

    m_no_action_button->SizeMove(GG::Pt(left, top), GG::Pt(left + CONTROL_WIDTH, top + CONTROL_HEIGHT));
    left += CONTROL_WIDTH + PAD;

    m_create_system_button->SizeMove(GG::Pt(left, top), GG::Pt(left + CONTROL_WIDTH, top + CONTROL_HEIGHT));
    left += CONTROL_WIDTH + PAD;

    m_create_planet_button->SizeMove(GG::Pt(left, top), GG::Pt(left + CONTROL_WIDTH, top + CONTROL_HEIGHT));
    left += CONTROL_WIDTH + PAD;

    m_delete_object_button->SizeMove(GG::Pt(left, top), GG::Pt(left + CONTROL_WIDTH, top + CONTROL_HEIGHT));
    left += CONTROL_WIDTH + PAD;

    m_set_owner_button->SizeMove(GG::Pt(left, top), GG::Pt(left + CONTROL_WIDTH, top + CONTROL_HEIGHT));
    left += CONTROL_WIDTH + PAD;

    m_add_starlane_button->SizeMove(GG::Pt(left, top), GG::Pt(left + CONTROL_WIDTH, top + CONTROL_HEIGHT));
    left += CONTROL_WIDTH + PAD;

    m_remove_starlane_button->SizeMove(GG::Pt(left, top), GG::Pt(left + CONTROL_WIDTH, top + CONTROL_HEIGHT));
    left += CONTROL_WIDTH + PAD;

    left = GG::X0 + PAD;
    top += CONTROL_HEIGHT + PAD;

    // all at same location; only one shown at a time
    m_star_type_drop->SizeMove(GG::Pt(left, top),   GG::Pt(left + DROP_WIDTH, top + CONTROL_HEIGHT));
    m_empire_drop->SizeMove(GG::Pt(left, top),      GG::Pt(left + DROP_WIDTH, top + CONTROL_HEIGHT));

    m_planet_type_drop->SizeMove(GG::Pt(left, top), GG::Pt(left + DROP_WIDTH, top + CONTROL_HEIGHT));
    left += DROP_WIDTH + PAD;
    m_planet_size_drop->SizeMove(GG::Pt(left, top), GG::Pt(left + DROP_WIDTH, top + CONTROL_HEIGHT));
}

void ModeratorActionsWnd::SizeMove(const GG::Pt& ul, const GG::Pt& lr) {
    GG::Pt old_size = GG::Wnd::Size();

    CUIWnd::SizeMove(ul, lr);

    if (old_size != GG::Wnd::Size())
        DoLayout();
}

void ModeratorActionsWnd::Refresh() {
    // todo: get currently selected empire, if any, reselect after refresh

    m_empire_drop->Clear();
    for (const auto& entry : Empires()) {
        const Empire* empire = entry.second;
        auto row = GG::Wnd::Create<GG::DropDownList::Row>();
        auto label = GG::Wnd::Create<CUILabel>(empire->Name(), GG::FORMAT_NOWRAP);
        label->SetTextColor(empire->Color());
        row->push_back(label);
        m_empire_drop->Insert(row);
    }

    // no empire / monsters
    auto row = GG::Wnd::Create<GG::DropDownList::Row>();
    auto label = GG::Wnd::Create<CUILabel>(UserString("UNOWNED"), GG::FORMAT_NOWRAP);
    label->SetTextColor(GG::CLR_RED);
    row->push_back(label);
    m_empire_drop->Insert(row);

    if (!m_empire_drop->Empty())
        m_empire_drop->Select(m_empire_drop->begin());
}

void ModeratorActionsWnd::EnableActions(bool enable/* = true*/)
{ m_actions_enabled = enable; }

void ModeratorActionsWnd::CloseClicked()
{ ClosingSignal(); }

StarType ModeratorActionsWnd::StarTypeFromIndex(std::size_t i) const {
    if (i == static_cast<std::size_t>(-1) || i >= NUM_STAR_TYPES)
        return STAR_BLUE;
    return StarType(i);     // assumes first enum and first index are value 0, and that items in list are in same order as enum values
}

PlanetType ModeratorActionsWnd::PlanetTypeFromIndex(std::size_t i) const {
    if (i == static_cast<std::size_t>(-1) || i >= NUM_PLANET_TYPES)
        return PT_SWAMP;
    return PlanetType(i);   // assumes first enum and first index are value 0, and that items in list are in same order as enum values
}

PlanetSize ModeratorActionsWnd::PlanetSizeFromIndex(std::size_t i) const {
    if (i == static_cast<std::size_t>(-1) || i + 1 >= NUM_PLANET_SIZES)
        return SZ_MEDIUM;
    return PlanetSize(i + 1);// enum index 0 is NO_WORLD, but don't put that into the list, so have to add 1 to all the list indices
}

int ModeratorActionsWnd::EmpireIDFromIndex(std::size_t i) const {
    if (i == static_cast<std::size_t>(-1) ||
        i >= static_cast<std::size_t>(Empires().NumEmpires()))
    { return ALL_EMPIRES; }
    return std::next(Empires().begin(), i)->first;
}
