// SPDX-FileCopyrightText: 2026 Filip Leonarski, Paul Scherrer Institute <filip.leonarski@psi.ch>
// SPDX-License-Identifier: GPL-3.0-only

#include "AssembleToPlane.h"

#include <algorithm>

PlaneRaster PlaneRasterOf(const DetectorModules &modules, int64_t width, int64_t height) {
    if (modules.empty())
        return {0, 0, width, height};
    // Raster pixel centres are whole plane coordinates; the first and last that lie on the footprints.
    const PlaneBox box = modules.PlaneBounds(width, height);
    const auto x0 = std::min<int64_t>(0, static_cast<int64_t>(std::ceil(box.x0)));
    const auto y0 = std::min<int64_t>(0, static_cast<int64_t>(std::ceil(box.y0)));
    return {x0, y0, static_cast<int64_t>(std::ceil(box.x1)) - x0, static_cast<int64_t>(std::ceil(box.y1)) - y0};
}