#pragma once

#include <QString>
#include <memory>

namespace datas {
	class IDataArray;
	class IDataObject {
	public:
		virtual ~IDataObject() = default;

		/**
		 * @brief 是否空对象.
		 * 
		 * \return 结果
		 */
		virtual bool isEmpty() const = 0;
		/**
		 * @brief 当前对象是否是Array.
		 * 
		 * \return 结果
		 */
		virtual bool isArray() const = 0;
		/**
		 * @brief 转换成Array.
		 * 
		 * \return 
		 */
		virtual std::shared_ptr<IDataArray> toArray() = 0;

		virtual bool getBool(const QString& key) const = 0;
		virtual double getDouble(const QString& key) const = 0;
		virtual int32_t getInt32(const QString& key) const = 0;
		virtual int64_t getInt64(const QString& key) const = 0;
		virtual QString getString(const QString& key) const = 0;
		/**
		 * @brief 获取指定对象，若无指定对象则返回一个不关联的空对象.
		 * 
		 * \param key
		 * \return 
		 */
		virtual std::shared_ptr<IDataObject> getObject(const QString& key) const = 0;

		virtual void setBool(const QString& key, bool value) = 0;
		virtual void setDouble(const QString& key, double value) = 0;
		virtual void setInt32(const QString& key, int32_t value) = 0;
		virtual void setInt64(const QString& key, int64_t value) = 0;
		virtual void setString(const QString& key, const QString& value) = 0;
		virtual void setObject(const QString& key, std::shared_ptr<IDataObject> value) = 0;

		virtual QString toText() const = 0;
		virtual void loadFrom(const QString &text) = 0;
	};
	class IDataArray : public IDataObject {
	public:
		virtual ~IDataArray() = default;

		virtual bool isValid() const = 0;

		virtual int32_t size() const = 0;
		virtual std::shared_ptr<IDataObject> get(int index) const = 0;
		virtual void insert(int index, std::shared_ptr<IDataObject> value) = 0;
		virtual void append(std::shared_ptr<IDataObject> value) = 0;
	};


	template<typename T> void dataSet(IDataObject& object, const QString& key, T value);
	template<typename T> T dataGet(IDataObject& object, const QString& key);

}