// SPDX-FileCopyrightText: 2025 Filip Leonarski, Paul Scherrer Institute <filip.leonarski@psi.ch>
// SPDX-License-Identifier: GPL-3.0-only

#include <cmath>

#include "BraggIntegrationSettings.h"
#include "JFJochException.h"

#define check_max(param, val, max) if ((val) > (max)) throw JFJochException(JFJochExceptionCategory::InputParameterAboveMax, param)
#define check_min(param, val, min) if ((val) < (min)) throw JFJochException(JFJochExceptionCategory::InputParameterBelowMin, param)
#define check_finite(param, val) if (!std::isfinite(val)) throw JFJochException(JFJochExceptionCategory::InputParameterInvalid, param)

BraggIntegrationSettings &BraggIntegrationSettings::R1(float input) {
    check_finite("Integration radius R1", input);
    check_min("Integration radius R1", input, 0.1);
    check_max("Integration radius R1", input, 20.0);
    r_1 = input;
    return *this;
}

BraggIntegrationSettings &BraggIntegrationSettings::R2(float input) {
    check_finite("Background inner radius R2", input);
    check_min("Background inner radius R2", input, 0.1);
    check_max("Background inner radius R2", input, 30.0);

    if (input <= r_1)
        throw JFJochException(JFJochExceptionCategory::InputParameterInvalid,
                              "Background inner radius (R2) must be larger than integration radius (R1)");

    r_2 = input;
    return *this;
}

BraggIntegrationSettings &BraggIntegrationSettings::R3(float input) {
    check_finite("Background outer radius R3", input);
    check_min("Background outer radius R3", input, 0.1);
    check_max("Background outer radius R3", input, 40.0);

    if (input <= r_2)
        throw JFJochException(JFJochExceptionCategory::InputParameterInvalid,
                              "Background outer radius (R3) must be larger than background inner radius (R2)");

    r_3 = input;
    return *this;
}

BraggIntegrationSettings &BraggIntegrationSettings::AngleFromEwald_deg(float input) {
    check_finite("Angle from Ewald sphere", input);
    check_min("Angle from Ewald sphere", input, 0.0);
    check_max("Angle from Ewald sphere", input, 45);

    angle_from_ewald_deg = input;
    return *this;
}

BraggIntegrationSettings &BraggIntegrationSettings::DMinLimit_A(float input) {
    check_finite("Minimum d-spacing", input);
    check_min("Minimum d-spacing", input, 0.5);
    check_max("Minimum d-spacing", input, 100.0);

    d_min_limit_A = input;
    return *this;
}

float BraggIntegrationSettings::GetR1() const {
    return r_1;
}

float BraggIntegrationSettings::GetR2() const {
    return r_2;
}

float BraggIntegrationSettings::GetR3() const {
    return r_3;
}

float BraggIntegrationSettings::GetAngleFromEwald_deg() const {
    return angle_from_ewald_deg;
}

float BraggIntegrationSettings::GetDMinLimit_A() const {
    return d_min_limit_A;
}