suyu_two/app/src/domain/hmi_model.h

/**
 * @file hmi_model.h
 * @brief 定义可保存的 HMI 页面、控件和寄存器绑定模型
 * @author suyu
 * @date 2026-08-10
 */

#pragma once

#include "register_address.h"
#include "register_value_type.h"
#include "project_limits.h"

#include <map>
#include <optional>
#include <string>
#include <variant>
#include <vector>

namespace HmiAppearanceProperty
{

inline constexpr const char kTextColor[] = "textColor";
inline constexpr const char kFontSize[] = "fontSize";
inline constexpr const char kFontBold[] = "fontBold";
inline constexpr const char kFontItalic[] = "fontItalic";

} // namespace HmiAppearanceProperty

/**
 * @brief 描述 HMI 控件在页面坐标系中的位置和尺寸
 *
 * 页面校验要求矩形的左上角非负且完整位于页面范围内
 */
struct HmiRect
{
    static constexpr int kDefaultWidth = 80;
    static constexpr int kDefaultHeight = 32;

    int x = 0;
    int y = 0;
    int width = kDefaultWidth;
    int height = kDefaultHeight;
};

/**
 * @brief HMI 控件的基础类型
 *
 * 按钮和指示灯只能绑定 M 位，数值控件只能绑定 D 字
 */
enum class HmiControlType
{
    Button,                  // 按钮
    Indicator,               // 指示灯
    NumericDisplay,          // 数值显示
    NumericInput,            // 数值输入
    Label,                   // 标签
    StatusText,              // 状态文本
    PageJump,                // 页面跳转
    AlarmList,               // 报警列表
    Count                    // 已注册控件类型数量，不作为实际控件使用
};

/**
 * @brief 按钮对绑定 M 位执行的操作
 */
enum class HmiButtonOperation
{
    SetOn,                   // 按下时写入 1
    SetOff,                  // 按下时写入 0
    Toggle,                  // 按下时写入当前读回值的反值
    MomentaryOn              // 按下时写入 1，释放时写入 0
};

/** @brief HMI 按钮 D 数值启用条件的比较方式 */
enum class HmiButtonConditionOperator
{
    Equal,
    NotEqual,
    LessThan,
    LessThanOrEqual,
    GreaterThan,
    GreaterThanOrEqual
};

struct HmiButtonBitEnableCondition
{
    RegisterAddress address{RegisterArea::M, 0};
    bool expected = false;

    bool operator==(const HmiButtonBitEnableCondition &other) const
    {
        return address == other.address && expected == other.expected;
    }
};

struct HmiButtonWordEnableCondition
{
    RegisterAddress address{RegisterArea::D, 0};
    RegisterDataType dataType = RegisterDataType::Int16;
    HmiButtonConditionOperator operation = HmiButtonConditionOperator::Equal;
    double value = 0.0;

    bool operator==(const HmiButtonWordEnableCondition &other) const
    {
        return address == other.address
            && dataType == other.dataType
            && operation == other.operation
            && value == other.value;
    }
};

using HmiButtonEnableCondition = std::variant<
    HmiButtonBitEnableCondition,
    HmiButtonWordEnableCondition>;

struct HmiPageJumpConfig
{
    std::string targetPageId;
};

struct HmiStatusBitTextConfig
{
    std::string offText;
    std::string onText;

    bool operator==(const HmiStatusBitTextConfig &other) const
    {
        return offText == other.offText && onText == other.onText;
    }
};

struct HmiStatusValueRange
{
    std::optional<double> lowerBound;
    std::optional<double> upperBound;
    std::string text;

    bool operator==(const HmiStatusValueRange &other) const
    {
        return lowerBound == other.lowerBound
            && upperBound == other.upperBound
            && text == other.text;
    }
};

struct HmiStatusWordTextConfig
{
    std::vector<HmiStatusValueRange> ranges;

    bool operator==(const HmiStatusWordTextConfig &other) const
    {
        return ranges == other.ranges;
    }
};

using HmiStatusTextConfig = std::variant<
    HmiStatusBitTextConfig,
    HmiStatusWordTextConfig>;

/**
 * @brief 描述一个可保存的 HMI 控件及其显示和寄存器配置
 *
 * `properties` 保存未纳入公共字段的字符串扩展属性
 */
struct HmiControl
{
    std::string id;
    HmiControlType type = HmiControlType::Label;
    HmiRect bounds;
    std::string text;
    std::optional<RegisterAddress> binding;
    RegisterDataType dataType = RegisterDataType::Int16;
    std::map<std::string, std::string> properties;
    HmiButtonOperation buttonOperation = HmiButtonOperation::MomentaryOn;
    std::optional<HmiButtonEnableCondition> buttonEnableCondition;
    std::optional<HmiPageJumpConfig> pageJump;
    std::optional<HmiStatusTextConfig> statusText;

    /**
     * @brief 校验控件的标识、尺寸、扩展属性和寄存器绑定
     * @param error 可选错误输出，失败时写入首个校验原因
     * @return 配置完整且满足控件类型绑定规则时返回 true
     *
     * 位控件必须绑定有效 M 地址，字控件必须绑定有效 D 地址
     */
    bool validate(std::string *error = nullptr) const;
    bool isConfigured() const;
};

/**
 * @brief 描述一个 HMI 页面及其控件集合
 *
 * 控件标识在同一页面内必须唯一，所有控件必须完整位于页面边界内
 */
struct HmiPage
{
    std::string id;
    std::string name;
    int width = ProjectLimits::kDefaultHmiPageWidth;
    int height = ProjectLimits::kDefaultHmiPageHeight;
    std::vector<HmiControl> controls;

    /**
     * @brief 校验页面尺寸、控件标识唯一性和全部控件配置
     * @param error 可选错误输出，失败时写入首个校验原因
     * @return 页面及其全部控件有效时返回 true
     */
    bool validate(
        const ProjectLimitSettings &limits,
        std::string *error = nullptr) const;
    bool validateForRunning(
        const ProjectLimitSettings &limits,
        std::string *error = nullptr) const;
};