#pragma once
#include <QWidget>
#include <QTableView>
#include <QStandardItemModel>
#include <QStyledItemDelegate>
#include <QItemDelegate>
#include <QHash>
#include <memory>
#include "TranslateBasic.h"


/// <summary>
/// 翻译程序核心
/// </summary>
class TranslateBasic {
private:
	QHash<QString, std::shared_ptr<ExtractUnit>> _extractor_types;
	std::shared_ptr<ExtractUnit> _default_translate_rule = nullptr;
	QHash<QString, std::shared_ptr<extract::SizeProvider>> _size_provider_types;
	std::shared_ptr<extract::SizeProvider> _default_size_provider = nullptr;

public:
	TranslateBasic();

	std::shared_ptr<ExtractUnit> defaultRule() const;
	std::shared_ptr<extract::SizeProvider> defaultSizeProvider() const;
	QHash<QString, std::shared_ptr<ExtractUnit>> extactors() const;
	QHash<QString, std::shared_ptr<extract::SizeProvider>> sizeProviders() const;
};


/// <summary>
/// 整形修改代理
/// </summary>
class IntDelegate : public QStyledItemDelegate {
	Q_OBJECT
private:
	int _min_value, _max_value;

signals:
	void valueChanged(const QModelIndex& idx) const;

public:
	IntDelegate(int min, int max);

	virtual QWidget* createEditor(QWidget* parent, const QStyleOptionViewItem& option, const QModelIndex& index) const override;
	virtual void setEditorData(QWidget* editor, const QModelIndex& index) const override;
	virtual void setModelData(QWidget* editor, QAbstractItemModel* model, const QModelIndex& index) const override;
	virtual void updateEditorGeometry(QWidget* editor, const QStyleOptionViewItem& option, const QModelIndex& index) const override;
};


/// <summary>
/// 翻译规则编辑代理
/// </summary>
class RuleSelectDelegate : public QStyledItemDelegate {
	Q_OBJECT
private:
	std::shared_ptr<TranslateBasic> _kernel;

signals:
	void dataChanged(const QModelIndex &idx) const;

public:
	RuleSelectDelegate(std::shared_ptr<TranslateBasic> ins);

	virtual QWidget* createEditor(QWidget* parent, const QStyleOptionViewItem& option, const QModelIndex& index) const override;
	virtual void setEditorData(QWidget* editor, const QModelIndex& index) const override;
	virtual void setModelData(QWidget* editor, QAbstractItemModel* model, const QModelIndex& index) const override;
	virtual void updateEditorGeometry(QWidget* editor, const QStyleOptionViewItem& option, const QModelIndex& index) const override;
};

class ConstNumberProvider : public extract::SizeProvider {
private:
	QString _number_value;

public:
	QString name() const override;

	int32_t value(const QString& expr) const override;
	void setExpression(const QString &expr) override;
	QString expression() const override;
};

/// <summary>
/// 序列化规则视图
/// </summary>
class SequenceRulesView : public QTableView {
	Q_OBJECT
private:
	QStandardItemModel* const _sequence_model;
	std::shared_ptr<TranslateBasic> base = nullptr;
	QList<std::shared_ptr<ExtractUnit>> _rule_sequence;

signals:
	void currentRuleChanged(std::shared_ptr<ExtractUnit> u, const QModelIndex &i) const;

public:
	void currentRuleRefresh(const QModelIndex &idx);
	void peersRuleChanged(const QModelIndex &idx_rule);

public:
	SequenceRulesView(QWidget* p = nullptr);

	void customTranslateRuleEdit(const QPoint& pos);
	void addTranslateUnit();
	void removeTranslateUnit();
};