#include "domain/project_storage.h"
#include "domain/register_repository.h"
#include "domain/virtual_register_repository.h"
#include "services/hmi_editor_service.h"
#include "services/editor_history.h"
#include "services/hmi_runtime_service.h"
#include "services/hmi_navigation_service.h"
#include "services/project_service.h"
#include "support/test_support.h"

#include <exception>
#include <iostream>
#include <stdexcept>
#include <string>

namespace {

using TestProjectStorage = TestSupport::InMemoryProjectStorage;
using TestSupport::require;

void testControlEditing()
{
    // 覆盖控件创建、移动、绑定校验、重命名冲突和删除流程
    TestProjectStorage storage;
    ProjectService project_service(storage);
    HmiEditorService service(project_service);
    const HmiEditorResult page_result = service.ensureDefaultPage();
    require(page_result.succeeded, "default HMI page creation must succeed");

    const std::string page_id = page_result.id;
    const HmiEditorResult button = service.addControl(page_id, HmiControlType::Button);
    const HmiEditorResult indicator = service.addControl(page_id, HmiControlType::Indicator);
    const HmiEditorResult display = service.addControl(
        page_id, HmiControlType::NumericDisplay);
    const HmiEditorResult input = service.addControl(page_id, HmiControlType::NumericInput);
    require(button.succeeded && indicator.succeeded && display.succeeded
                && input.succeeded,
            "basic HMI controls must be added");

    const HmiPage *page = service.findPage(page_id);
    require(page != nullptr && page->controls.size() == 4,
            "all added controls must be kept in the page model");
    require(service.moveControl(page_id, button.id, {120, 80, 120, 40}).succeeded,
            "a valid control move must succeed");
    require(!service.moveControl(page_id, button.id, {790, 460, 120, 40}).succeeded,
            "a move outside the page must be rejected");

    HmiControl updated = *service.findControl(page_id, button.id);
    updated.binding = RegisterAddress{RegisterArea::D, 0};
    require(!service.updateControl(page_id, button.id, updated).succeeded,
            "buttons must reject D address bindings during editing");
    updated.binding = RegisterAddress{RegisterArea::M, 7};
    updated.text = "启动";
    require(service.updateControl(page_id, button.id, updated).succeeded,
            "a button M binding and edited text must be accepted");

    HmiControl duplicate = *service.findControl(page_id, indicator.id);
    duplicate.id = button.id;
    require(service.updateControl(page_id, indicator.id, duplicate).error
                == HmiEditorError::DuplicateId,
            "duplicate control ids must be rejected");

    require(service.removeControl(page_id, indicator.id).succeeded,
            "deleting a selected control must succeed");
    require(service.findControl(page_id, indicator.id) == nullptr,
            "deleted controls must not remain in the model");
}

void testRuntimeUsesRegisterRepository()
{
    // 运行服务只能经由仓库接口读写 M/D，不依赖具体离线实现
    VirtualRegisterRepository repository;
    HmiRuntimeService runtime_service(repository);

    HmiControl button;
    button.id = "start";
    button.type = HmiControlType::Button;
    button.binding = RegisterAddress{RegisterArea::M, 12};
    require(button.buttonOperation == HmiButtonOperation::MomentaryOn,
            "new buttons must default to momentary ON");
    require(runtime_service.operateButton(button, HmiButtonEvent::Pressed).succeeded,
            "momentary button press must be accepted by the repository");
    require(repository.readBit(*button.binding).value,
            "momentary button press must write ON");
    require(runtime_service.operateButton(button, HmiButtonEvent::Released).succeeded,
            "momentary button release must be accepted by the repository");
    require(!repository.readBit(*button.binding).value,
            "momentary button release must write OFF");

    button.buttonOperation = HmiButtonOperation::SetOn;
    require(runtime_service.operateButton(button, HmiButtonEvent::Pressed).succeeded,
            "set ON button press must succeed");
    require(repository.readBit(*button.binding).value,
            "set ON button press must write ON");
    require(runtime_service.operateButton(button, HmiButtonEvent::Released).succeeded,
            "set ON button release must be ignored successfully");
    require(repository.readBit(*button.binding).value,
            "set ON button release must keep the bit ON");

    button.buttonOperation = HmiButtonOperation::SetOff;
    require(runtime_service.operateButton(button, HmiButtonEvent::Pressed).succeeded,
            "set OFF button press must succeed");
    require(!repository.readBit(*button.binding).value,
            "set OFF button press must write OFF");

    button.buttonOperation = HmiButtonOperation::Toggle;
    require(runtime_service.operateButton(button, HmiButtonEvent::Pressed).succeeded,
            "toggle button press must succeed");
    require(repository.readBit(*button.binding).value,
            "toggle button press must invert the current value");

    HmiControl indicator;
    indicator.id = "running";
    indicator.type = HmiControlType::Indicator;
    indicator.binding = RegisterAddress{RegisterArea::M, 12};
    const HmiRuntimeReadResult indicator_value = runtime_service.readControl(indicator);
    require(indicator_value.succeeded && indicator_value.bit_value,
            "indicators must read M values through the repository");

    HmiControl numeric_input;
    numeric_input.id = "target";
    numeric_input.type = HmiControlType::NumericInput;
    numeric_input.binding = RegisterAddress{RegisterArea::D, 9};
    require(runtime_service.writeNumericInput(numeric_input, -18).succeeded,
            "numeric input runtime writes must be accepted by the repository");

    HmiControl numeric_display;
    numeric_display.id = "actual";
    numeric_display.type = HmiControlType::NumericDisplay;
    numeric_display.binding = RegisterAddress{RegisterArea::D, 9};
    const HmiRuntimeReadResult numeric_value = runtime_service.readControl(numeric_display);
    require(numeric_value.succeeded && numeric_value.word_value == -18,
            "numeric display must read D values through the repository");

}

void testHistoryAndAtomicBatchDelete()
{
    TestProjectStorage storage;
    ProjectService project_service(storage);
    HmiEditorService service(project_service);
    const std::string page_id = service.ensureDefaultPage().id;
    const HmiEditorResult first = service.addControl(page_id, HmiControlType::Label);
    const HmiEditorResult second = service.addControl(page_id, HmiControlType::Label);
    const HmiEditorResult third = service.addControl(page_id, HmiControlType::Label);
    require(first.succeeded && second.succeeded && third.succeeded,
            "controls for history testing must be created");

    service.clearHistory();
    require(!service.removeControls(page_id, {first.id, "missing-control"}).succeeded,
            "batch deletion must reject an unknown control before changing the page");
    require(service.findPage(page_id)->controls.size() == 3U
                && !service.canUndo(),
            "failed batch deletion must be atomic and leave history unchanged");

    require(service.removeControls(page_id, {first.id, second.id}).succeeded,
            "batch deletion of valid controls must succeed");
    require(service.findPage(page_id)->controls.size() == 1U
                && service.canUndo(),
            "valid batch deletion must remove all selected controls in one history step");
    require(service.undo().succeeded && service.findPage(page_id)->controls.size() == 3U,
            "HMI undo must restore a deleted batch");
    require(service.redo().succeeded && service.findPage(page_id)->controls.size() == 1U,
            "HMI redo must reapply a deleted batch");

    service.clearHistory();
    const HmiControl *remaining = service.findControl(page_id, third.id);
    require(remaining != nullptr,
            "the unselected control must survive a batch deletion");
    require(service.moveControl(page_id, third.id, remaining->bounds).succeeded
                && !service.canUndo(),
            "a no-op control move must not consume an undo step");

    service.clearHistory();
    HmiControl candidate = *service.findControl(page_id, third.id);
    for (int index = 1; index <= 101; ++index)
    {
        candidate.bounds.x = index;
        require(service.updateControl(page_id, third.id, candidate).succeeded,
                "repeated valid HMI edits must succeed");
    }
    int undo_count = 0;
    while (service.undo().succeeded)
    {
        ++undo_count;
    }
    require(undo_count == static_cast<int>(EditorHistory<int>::kMaximumEntries),
            "HMI history must retain exactly the configured most recent steps");
}

void testBatchPasteControls()
{
    TestProjectStorage storage;
    ProjectService project_service(storage);
    HmiEditorService service(project_service);
    const std::string page_id = service.ensureDefaultPage().id;
    const HmiEditorResult first = service.addControl(page_id, HmiControlType::Label);
    const HmiEditorResult second = service.addControl(page_id, HmiControlType::Label);
    require(first.succeeded && second.succeeded,
            "controls for paste testing must be created");

    HmiControl first_copy = *service.findControl(page_id, first.id);
    HmiControl second_copy = *service.findControl(page_id, second.id);
    first_copy.bounds = {100, 80, 80, 32};
    first_copy.text = "复制标签";
    first_copy.properties[HmiAppearanceProperty::kTextColor] = "#E53935";
    second_copy.bounds = {220, 80, 80, 32};
    require(service.updateControl(page_id, first.id, first_copy).succeeded
                && service.updateControl(page_id, second.id, second_copy).succeeded,
            "source controls must be movable before paste");
    service.clearHistory();

    const HmiEditorResult pasted = service.pasteControls(
        page_id, {first_copy, second_copy});
    require(pasted.succeeded
                && service.findPage(page_id)->controls.size() == 4U
                && pasted.id != first.id && pasted.id != second.id,
            "batch paste must create controls with fresh ids");
    const HmiControl *pasted_control = service.findControl(page_id, pasted.id);
    require(pasted_control != nullptr
                && pasted_control->bounds.x == first_copy.bounds.x + 20
                && pasted_control->bounds.y == first_copy.bounds.y + 20
                && pasted_control->text == first_copy.text
                && pasted_control->properties == first_copy.properties,
            "pasted controls must preserve content and appearance with an offset");
    require(service.undo().succeeded
                && service.findPage(page_id)->controls.size() == 2U,
            "batch control paste must be one undoable operation");
}

void testRuntimeValidationAndPasteBoundaries()
{
    TestProjectStorage storage;
    ProjectService project_service(storage);
    HmiEditorService editor(project_service);
    const std::string page_id = editor.ensureDefaultPage().id;

    HmiControl label;
    label.id = "label-source";
    label.type = HmiControlType::Label;
    label.bounds = {760, 360, 32, 32};
    label.text = "边界";
    require(editor.pasteControls(page_id, {label}, 20, 20).succeeded,
            "a paste near the page edge must be clamped into the page");
    const HmiPage *page = editor.findPage(page_id);
    require(page != nullptr && page->controls.size() == 1U,
            "edge paste must add exactly one control");
    const HmiControl &edge_copy = page->controls.front();
    require(edge_copy.bounds.x + edge_copy.bounds.width <= page->width
                && edge_copy.bounds.y + edge_copy.bounds.height <= page->height
                && edge_copy.bounds.x >= 0 && edge_copy.bounds.y >= 0,
            "edge paste must keep the copied control inside page bounds");

    require(!editor.pasteControls(page_id, {}).succeeded,
            "an empty HMI clipboard must be rejected");
    HmiControl oversized = label;
    oversized.bounds = {0, 0, page->width + 1, 32};
    require(!editor.pasteControls(page_id, {oversized}).succeeded
                && editor.findPage(page_id)->controls.size() == 1U,
            "a copied control wider than the target page must fail atomically");
    HmiControl unsupported = label;
    unsupported.type = HmiControlType::Count;
    require(!editor.pasteControls(page_id, {unsupported}).succeeded
                && editor.findPage(page_id)->controls.size() == 1U,
            "an unsupported copied HMI type must fail atomically");

    std::vector<HmiControl> too_many(513U, label);
    require(!editor.pasteControls(page_id, too_many).succeeded
                && editor.findPage(page_id)->controls.size() == 1U,
            "a paste batch above the page limit must be rejected before mutation");

    VirtualRegisterRepository repository;
    HmiRuntimeService runtime(repository);
    HmiControl unbound_indicator;
    unbound_indicator.type = HmiControlType::Indicator;
    require(runtime.readControl(unbound_indicator).error
                == HmiRuntimeError::MissingBinding,
            "an unbound runtime indicator must report MissingBinding");
    HmiControl wrong_area_indicator = unbound_indicator;
    wrong_area_indicator.binding = RegisterAddress{RegisterArea::D, 0};
    require(runtime.readControl(wrong_area_indicator).error
                == HmiRuntimeError::InvalidBinding,
            "an indicator bound to D must report InvalidBinding");
    HmiControl invalid_indicator = unbound_indicator;
    invalid_indicator.binding = RegisterAddress{RegisterArea::M, 4001};
    require(runtime.readControl(invalid_indicator).error
                == HmiRuntimeError::InvalidBinding,
            "an indicator with an out-of-range address must report InvalidBinding");
    require(runtime.readControl(label).error
                == HmiRuntimeError::UnsupportedControl,
            "a static label must not be treated as a register runtime control");

    HmiControl wrong_button = unbound_indicator;
    wrong_button.type = HmiControlType::Button;
    wrong_button.binding = RegisterAddress{RegisterArea::D, 0};
    require(runtime.operateButton(wrong_button, HmiButtonEvent::Pressed).error
                == HmiRuntimeError::InvalidBinding,
            "a button bound to D must reject runtime writes");
    HmiControl wrong_numeric = unbound_indicator;
    wrong_numeric.type = HmiControlType::NumericInput;
    wrong_numeric.binding = RegisterAddress{RegisterArea::M, 0};
    require(runtime.writeNumericInput(wrong_numeric, 1).error
                == HmiRuntimeError::InvalidBinding,
            "a numeric input bound to M must reject runtime writes");
}

void testAppearanceEditing()
{
    TestProjectStorage storage;
    ProjectService project_service(storage);
    HmiEditorService service(project_service);
    const std::string page_id = service.ensureDefaultPage().id;
    const HmiEditorResult label = service.addControl(page_id, HmiControlType::Label);
    require(label.succeeded, "a label must be available for appearance editing");

    HmiControl appearance = *service.findControl(page_id, label.id);
    appearance.properties[HmiAppearanceProperty::kTextColor] = "#E53935";
    appearance.properties[HmiAppearanceProperty::kFontSize] = "18";
    appearance.properties[HmiAppearanceProperty::kFontBold] = "true";
    appearance.properties[HmiAppearanceProperty::kFontItalic] = "false";
    require(service.updateControl(page_id, label.id, appearance).succeeded,
            "valid appearance properties must be applied atomically");
    const HmiControl *updated = service.findControl(page_id, label.id);
    require(updated != nullptr
                && updated->properties.at(HmiAppearanceProperty::kTextColor) == "#E53935"
                && updated->properties.at(HmiAppearanceProperty::kFontSize) == "18"
                && updated->properties.at(HmiAppearanceProperty::kFontBold) == "true",
            "appearance properties must be stored on the HMI control");

    HmiControl invalid = *updated;
    invalid.properties[HmiAppearanceProperty::kTextColor] = "invalid";
    require(!service.updateControl(page_id, label.id, invalid).succeeded,
            "invalid appearance properties must be rejected without a partial update");
    require(service.findControl(page_id, label.id)->properties.at(
                HmiAppearanceProperty::kTextColor) == "#E53935",
            "failed appearance updates must leave the old color intact");

    require(service.undo().succeeded,
            "appearance updates must participate in HMI undo history");
    require(service.findControl(page_id, label.id)->properties.empty(),
            "undo must remove the applied appearance properties");
    require(service.redo().succeeded
                && service.findControl(page_id, label.id)->properties.at(
                    HmiAppearanceProperty::kFontSize) == "18",
            "redo must restore the applied appearance properties");
}

void testPageLifecycleAndNavigation()
{
    TestProjectStorage storage;
    ProjectService project_service(storage);
    HmiEditorService service(project_service);
    const std::string main_id = service.ensureDefaultPage().id;
    require(project_service.project().initialHmiPageId == main_id,
            "the first page must become the initial HMI page");

    const HmiEditorResult settings = service.addPage("Settings");
    const HmiEditorResult maintenance = service.addPage("Maintenance");
    require(settings.succeeded && maintenance.succeeded,
            "multiple HMI pages must be creatable");
    require(service.renamePage(settings.id, "Parameters").succeeded,
            "an HMI page must be renamable by stable id");
    require(service.renamePage(maintenance.id, "Parameters").error
                == HmiEditorError::DuplicateName,
            "HMI page names must remain unique");
    require(service.movePage(maintenance.id, -1).succeeded
                && project_service.project().hmiPages.at(1).id == maintenance.id,
            "HMI page order must be editable independently from page ids");

    const HmiEditorResult label = service.addControl(main_id, HmiControlType::Label);
    require(label.succeeded
                && service.findControl(main_id, label.id)->isConfigured(),
            "the editor service must expose a configured static Label control");
    const HmiEditorResult alarm_list = service.addControl(
        main_id, HmiControlType::AlarmList);
    require(alarm_list.succeeded
                && service.findControl(main_id, alarm_list.id)->isConfigured()
                && !service.findControl(main_id, alarm_list.id)->binding.has_value(),
            "AlarmList must be configured without a register binding");
    HmiControl bound_alarm_list = *service.findControl(main_id, alarm_list.id);
    bound_alarm_list.binding = RegisterAddress{RegisterArea::M, 20};
    require(!service.updateControl(
                main_id, alarm_list.id, bound_alarm_list).succeeded,
            "AlarmList must reject direct register bindings");
    const HmiEditorResult jump = service.addControl(main_id, HmiControlType::PageJump);
    require(jump.succeeded, "the editor service must expose PageJump creation");
    HmiControl jump_control = *service.findControl(main_id, jump.id);
    jump_control.pageJump = HmiPageJumpConfig{maintenance.id};
    require(service.updateControl(main_id, jump.id, jump_control).succeeded,
            "PageJump target updates must resolve stable page ids");
    require(service.removePage(maintenance.id).error == HmiEditorError::PageReferenced,
            "a page referenced by PageJump must not be deletable");

    require(service.setInitialPage(settings.id).succeeded,
            "the user must be able to select a different initial page");
    require(service.removePage(settings.id).error
                == HmiEditorError::InitialPageCannotBeRemoved,
            "the initial page must not be deleted implicitly");

    HmiNavigationService navigation(project_service);
    const HmiNavigationResult start = navigation.start();
    require(start.succeeded && start.pageId == settings.id,
            "runtime navigation must start from the persisted initial page");
    require(navigation.navigateTo(maintenance.id).succeeded
                && navigation.currentPageId() == maintenance.id,
            "runtime navigation must switch to an existing page");
    require(navigation.navigateTo("missing").error
                == HmiNavigationError::PageNotFound,
            "runtime navigation must reject an unknown page id");
    navigation.stop();
    require(navigation.currentPageId().empty(),
            "stopping runtime navigation must clear session state");
}

void testPageResizeIsAtomicAndUndoable()
{
    TestProjectStorage storage;
    ProjectService project_service(storage);
    HmiEditorService service(project_service);
    const std::string page_id = service.ensureDefaultPage().id;
    const HmiEditorResult label = service.addControl(page_id, HmiControlType::Label);
    require(label.succeeded, "page resize fixture must add a control");

    HmiControl control = *service.findControl(page_id, label.id);
    control.bounds = {700, 340, 80, 32};
    require(service.updateControl(page_id, label.id, control).succeeded,
            "page resize fixture must place the control near the page edge");
    require(service.resizePage(page_id, 1024, 600).succeeded,
            "an HMI page must be resizable to a larger valid rectangle");
    require(service.findPage(page_id)->width == 1024
                && service.findPage(page_id)->height == 600,
            "page resize must update both dimensions");
    require(service.resizePage(page_id, 700, 300).error
                == HmiEditorError::InvalidPage,
            "page resize must reject dimensions that clip an existing control");
    require(service.findPage(page_id)->width == 1024
                && service.findPage(page_id)->height == 600,
            "a rejected page resize must leave the original dimensions intact");
    require(service.undo().succeeded
                && service.findPage(page_id)->width == 800
                && service.findPage(page_id)->height == 400,
            "page resize must participate in HMI undo history");
    require(service.redo().succeeded
                && service.findPage(page_id)->width == 1024
                && service.findPage(page_id)->height == 600,
            "page resize redo must restore the new dimensions");
    require(service.resizePage(page_id, 319, 600).error
                == HmiEditorError::InvalidPage,
            "page width below the business minimum must be rejected");
}

} // namespace

int main()
{
    try
    {
        // 编辑和运行场景分别验证服务层两条独立职责
        testControlEditing();
        testHistoryAndAtomicBatchDelete();
        testBatchPasteControls();
        testRuntimeValidationAndPasteBoundaries();
        testAppearanceEditing();
        testRuntimeUsesRegisterRepository();
        testPageLifecycleAndNavigation();
        testPageResizeIsAtomicAndUndoable();
    }
    catch (const std::exception &error)
    {
        std::cerr << "HMI editor service tests failed: " << error.what() << '\n';
        return 1;
    }

    std::cout << "HMI editor service tests passed\n";
    return 0;
}