#pragma once

#include <map>
#include <string>

#include <QWidget>

#include "SelectionContext.h"

struct Building;
class ItemChipRow;
class SectionBox;

// The input and output buffer contents of one building, each a captioned section of item
// chips (REQ-UI-SINGLE-SELECTION).
//
// Counting what is in the buffers is the same for every building type, so it happens
// here; what a cycle consumes and produces is not, so the owning content supplies those
// per-cycle amounts. An item with no entry in the maps is shown without a denominator,
// and a section holding nothing is not shown at all.
class BufferSection : public QWidget
{
    Q_OBJECT

public:
    explicit BufferSection(const SelectionContext& context, QWidget* parent = nullptr);

    // perCycleInputs and perCycleOutputs map an item id to the amount one production
    // cycle consumes or produces. Both may be empty, for a building that runs no cycle.
    void setBuffers(const Building& building,
                    const std::map<std::string, int>& perCycleInputs,
                    const std::map<std::string, int>& perCycleOutputs);

private:
    SectionBox*  m_inputSection;
    ItemChipRow* m_inputChips;
    SectionBox*  m_outputSection;
    ItemChipRow* m_outputChips;
};