#include "DetectorConstruction.h"
#include "Material.h"

#include "G4Box.hh"
#include "G4LogicalVolume.hh"
#include "G4PVPlacement.hh"
#include "G4SystemOfUnits.hh"
#include "G4Tubs.hh"

DetectorConstruction::DetectorConstruction() {}

DetectorConstruction::~DetectorConstruction() {}

G4VPhysicalVolume* DetectorConstruction::Construct() {
    // Define materials
    DefineMaterials();

    // World
    G4Box* solid_world = new G4Box("World", 3. * m, 3. * m, 10. * m);
    G4LogicalVolume* logic_world = new G4LogicalVolume(solid_world, G4Material::GetMaterial("Vacuum"), "World");
    G4VPhysicalVolume* physics_world = new G4PVPlacement(0, G4ThreeVector(), logic_world, "World", 0, false, 0, true);

    // 大柱段
    // 生活控制舱
    G4double pRmin_big = 2.2 / 2 * m;
    G4double pRmax_big = 4.2 / 2 * m;
    G4double zLength = 4.32 * m;
    G4ThreeVector pos1 = G4ThreeVector(0, 0, -(0.815 * m + zLength / 2));
    G4Tubs* solid_section_big_life = new G4Tubs("section_big_life", pRmin_big, pRmax_big, zLength / 2, 0, 360);
    G4LogicalVolume* logic_section_big_life = new G4LogicalVolume(
        solid_section_big_life, G4Material::GetMaterial("Aluminum alloy Series 5"), "section_big_life");
    new G4PVPlacement(0, pos1, logic_section_big_life, "section_big_life", logic_world, false, 0, true);

    return physics_world;
}