#pragma once

#include <optional>
#include <string>
#include <vector>

#include "Blueprint.h"
#include "BuildingId.h"
#include "BuildingType.h"
#include "ItemType.h"
#include "ShipLayout.h"

class Simulation;

// The user-configurable settings of a single building or construction site: the
// selected recipe / ship schematic, the shipyard module layout, and (for
// splitters) the two output filters. Shared by the copy-settings gesture
// (REQ-BLD-COPY-CONFIG) and blueprint capture (REQ-UI-BLUEPRINT-STORAGE).
struct BuildingConfig
{
    BuildingType type = BuildingType::Miner;

    // Selected recipe (Miner / Assembler) or ship schematic id (Shipyard); unset
    // when nothing is selected.
    std::optional<std::string> recipeId;

    // Shipyard module layout (REQ-MOD-LAYOUT).
    std::optional<ShipLayoutConfig> shipLayout;

    // Splitter output filters (empty = accept all). isSplitter distinguishes an
    // empty-filter splitter (a valid accept-all configuration) from a building
    // type that has no splitter filters at all.
    bool                  isSplitter = false;
    std::vector<ItemType> splitterFilterA;
    std::vector<ItemType> splitterFilterB;
};

// Reads the current configuration of the building or construction site identified
// by id, handling operational buildings and sites alike. Returns std::nullopt if
// no such building or site exists.
std::optional<BuildingConfig> readBuildingConfig(const Simulation& sim, BuildingId id);

// Captures a blueprint from a selection of building / construction-site ids, keeping
// only player-placeable buildings and recording each one's type, rotation, offset
// from the selection's bounding-box center, and configuration. Operational buildings
// and construction sites are treated identically (REQ-UI-BLUEPRINT-CREATE,
// REQ-UI-BLUEPRINT-STORAGE). The returned blueprint is unnamed.
Blueprint captureBlueprintFromSelection(const Simulation&              sim,
                                        const std::vector<BuildingId>& selectedIds);

// True if any selected id refers to a player-placeable building or construction site
// (the enable condition for the Create Blueprint button, REQ-UI-BLUEPRINT-CREATE).
bool selectionHasPlaceableBuilding(const Simulation&              sim,
                                   const std::vector<BuildingId>& selectedIds);