#pragma once

#include <XCEditor/Shell/UIEditorPanelRegistry.h>
#include <XCEditor/Shell/UIEditorDockHost.h>

#include <cstdint>
#include <string>
#include <string_view>
#include <vector>

namespace XCEngine::UI::Editor {

enum class UIEditorPanelContentHostEventKind : std::uint8_t {
    Mounted = 0,
    Unmounted,
    BoundsChanged
};

std::string_view GetUIEditorPanelContentHostEventKindName(
    UIEditorPanelContentHostEventKind kind);

bool IsUIEditorPanelPresentationExternallyHosted(UIEditorPanelPresentationKind kind);

struct UIEditorPanelContentHostBinding {
    std::string panelId = {};
    UIEditorPanelPresentationKind kind = UIEditorPanelPresentationKind::Placeholder;
};

struct UIEditorPanelContentHostMountRequest {
    std::string panelId = {};
    UIEditorPanelPresentationKind kind = UIEditorPanelPresentationKind::Placeholder;
    ::XCEngine::UI::UIRect bounds = {};
};

struct UIEditorPanelContentHostRequest {
    std::vector<UIEditorPanelContentHostMountRequest> mountRequests = {};
};

struct UIEditorPanelContentHostPanelState {
    std::string panelId = {};
    UIEditorPanelPresentationKind kind = UIEditorPanelPresentationKind::Placeholder;
    bool mounted = false;
    ::XCEngine::UI::UIRect bounds = {};
};

struct UIEditorPanelContentHostState {
    std::vector<UIEditorPanelContentHostPanelState> panelStates = {};
};

struct UIEditorPanelContentHostEvent {
    UIEditorPanelContentHostEventKind kind = UIEditorPanelContentHostEventKind::Mounted;
    std::string panelId = {};
    UIEditorPanelPresentationKind presentationKind = UIEditorPanelPresentationKind::Placeholder;
    ::XCEngine::UI::UIRect bounds = {};
};

struct UIEditorPanelContentHostFrame {
    std::vector<UIEditorPanelContentHostPanelState> panelStates = {};
    std::vector<UIEditorPanelContentHostEvent> events = {};
};

const UIEditorPanelContentHostMountRequest* FindUIEditorPanelContentHostMountRequest(
    const UIEditorPanelContentHostRequest& request,
    std::string_view panelId);

const UIEditorPanelContentHostPanelState* FindUIEditorPanelContentHostPanelState(
    const UIEditorPanelContentHostState& state,
    std::string_view panelId);

const UIEditorPanelContentHostPanelState* FindUIEditorPanelContentHostPanelState(
    const UIEditorPanelContentHostFrame& frame,
    std::string_view panelId);

UIEditorPanelContentHostRequest ResolveUIEditorPanelContentHostRequest(
    const Widgets::UIEditorDockHostLayout& dockHostLayout,
    const UIEditorPanelRegistry& panelRegistry,
    const std::vector<UIEditorPanelContentHostBinding>& bindings);

UIEditorPanelContentHostFrame UpdateUIEditorPanelContentHost(
    UIEditorPanelContentHostState& state,
    const UIEditorPanelContentHostRequest& request,
    const UIEditorPanelRegistry& panelRegistry,
    const std::vector<UIEditorPanelContentHostBinding>& bindings);

std::vector<std::string> CollectMountedUIEditorPanelContentHostPanelIds(
    const UIEditorPanelContentHostFrame& frame);

} // namespace XCEngine::UI::Editor