#include "ProductEditorHostCommandBridge.h"

#include <string>

namespace XCEngine::UI::Editor::App {

void ProductEditorHostCommandBridge::BindSession(ProductEditorSession& session) {
    m_session = &session;
}

void ProductEditorHostCommandBridge::SetExitRequestHandler(std::function<void()> handler) {
    m_requestExit = std::move(handler);
}

UIEditorHostCommandEvaluationResult ProductEditorHostCommandBridge::EvaluateHostCommand(
    std::string_view commandId) const {
    UIEditorHostCommandEvaluationResult result = {};

    if (commandId == "file.exit") {
        result.executable = true;
        result.message = "Exit command is ready.";
        return result;
    }

    if (commandId == "help.about") {
        result.executable = true;
        result.message = "About placeholder is ready.";
        return result;
    }

    if (commandId.rfind("edit.", 0u) == 0u) {
        return EvaluateEditCommand(commandId);
    }

    if (commandId.rfind("file.", 0u) == 0u) {
        return BuildDisabledResult("Document command bridge is not attached yet.");
    }
    if (commandId.rfind("assets.", 0u) == 0u) {
        return BuildDisabledResult("Asset pipeline bridge is not attached yet.");
    }
    if (commandId.rfind("run.", 0u) == 0u) {
        return BuildDisabledResult("Runtime bridge is not attached yet.");
    }
    if (commandId.rfind("scripts.", 0u) == 0u) {
        return BuildDisabledResult("Script pipeline bridge is not attached yet.");
    }

    return BuildDisabledResult("Host command is not attached yet.");
}

UIEditorHostCommandDispatchResult ProductEditorHostCommandBridge::DispatchHostCommand(
    std::string_view commandId) {
    UIEditorHostCommandDispatchResult result = {};

    if (commandId == "file.exit") {
        result.commandExecuted = true;
        result.message = "Exit requested.";
        if (m_requestExit) {
            m_requestExit();
        }
        return result;
    }

    if (commandId == "help.about") {
        result.commandExecuted = true;
        result.message = "About dialog will be wired after modal layer lands.";
        return result;
    }

    if (commandId.rfind("edit.", 0u) == 0u) {
        return DispatchEditCommand(commandId);
    }

    result.message = EvaluateHostCommand(commandId).message;
    return result;
}

UIEditorHostCommandEvaluationResult ProductEditorHostCommandBridge::BuildDisabledResult(
    std::string_view message) const {
    UIEditorHostCommandEvaluationResult result = {};
    result.executable = false;
    result.message = std::string(message);
    return result;
}

UIEditorHostCommandEvaluationResult ProductEditorHostCommandBridge::EvaluateEditCommand(
    std::string_view commandId) const {
    if (m_session == nullptr) {
        return BuildDisabledResult("Editor session is not attached yet.");
    }

    switch (m_session->activeRoute) {
    case ProductEditorActionRoute::Hierarchy:
        if (SupportsHierarchyEditCommands(commandId)) {
            return UIEditorHostCommandEvaluationResult{
                true,
                "Hierarchy edit route placeholder is active."
            };
        }
        return BuildDisabledResult("Current hierarchy route does not expose this command yet.");
    case ProductEditorActionRoute::Project:
        if (SupportsProjectEditCommands(commandId)) {
            return UIEditorHostCommandEvaluationResult{
                true,
                "Project edit route placeholder is active."
            };
        }
        return BuildDisabledResult("Current project route does not expose this command yet.");
    case ProductEditorActionRoute::None:
        return BuildDisabledResult("No active edit route.");
    default:
        return BuildDisabledResult("Current panel does not expose edit commands yet.");
    }
}

UIEditorHostCommandDispatchResult ProductEditorHostCommandBridge::DispatchEditCommand(
    std::string_view commandId) {
    UIEditorHostCommandDispatchResult result = {};
    const UIEditorHostCommandEvaluationResult evaluation = EvaluateEditCommand(commandId);
    if (!evaluation.executable) {
        result.message = evaluation.message;
        return result;
    }

    result.commandExecuted = true;
    switch (m_session != nullptr ? m_session->activeRoute : ProductEditorActionRoute::None) {
    case ProductEditorActionRoute::Hierarchy:
        result.message = "Hierarchy edit command route reached.";
        break;
    case ProductEditorActionRoute::Project:
        result.message = "Project edit command route reached.";
        break;
    default:
        result.message = "Edit command route reached.";
        break;
    }
    return result;
}

bool ProductEditorHostCommandBridge::SupportsHierarchyEditCommands(
    std::string_view commandId) const {
    return commandId == "edit.cut" ||
        commandId == "edit.copy" ||
        commandId == "edit.paste" ||
        commandId == "edit.duplicate" ||
        commandId == "edit.delete" ||
        commandId == "edit.rename";
}

bool ProductEditorHostCommandBridge::SupportsProjectEditCommands(
    std::string_view commandId) const {
    return commandId == "edit.delete" ||
        commandId == "edit.rename";
}

} // namespace XCEngine::UI::Editor::App