#ifndef PLOT_DATA_H
#define PLOT_DATA_H

#include <vector>
#include "Range.h"
#include <cmath>

class Data {

	using Key = float;
	using Value = float;

public:

	struct KeyVal {
		Key key;
		Value val;
		KeyVal(const Key& key, const Value& val) : key(key), val(val) {;}
	};

private:

	/** contained data */
	std::vector<KeyVal> data;



public:

	/** add a new value */
	void add(const Key key, const Value val) {
		data.push_back(KeyVal(key,val));
	}

	/** remove the given index */
	void remove(const int idx) {
		data.erase(data.begin()+idx);
	}

	Key getKey(const int idx) const {
		return data[idx].key;
	}

	Value getValue(const int idx) const {
		return data[idx].val;
	}

	const KeyVal& getKeyValue(const int idx) const {
		return data[idx];
	}

	const KeyVal& operator [] (const int idx) const {
		return data[idx];
	}

	const KeyVal& front() const {return data.front();}
	const KeyVal& back() const {return data.back();}

	/** get the range (min/max) for the key-data (x-axes) */
	Range getKeyRange() const {
		Range range(+INFINITY,-INFINITY);
		for (const KeyVal& kv : data) {range.adjust(kv.key);}
		return range;
	}

	/** get the range (min/max) for the value-data (y-axes) */
	Range getValueRange() const {
		Range range(+INFINITY,-INFINITY);
		for (const KeyVal& kv : data) {range.adjust(kv.val);}
		return range;
	}

	/** get the number of entries */
	size_t size() const {
		return data.size();
	}

};

#endif // PLOT_DATA_H