//  • ▌ ▄ ·.  ▄▄▄·  ▄▄ • ▪   ▄▄· ▄▄▄▄·  ▄▄▄·  ▐▄▄▄  ▄▄▄ .
//  ·██ ▐███▪▐█ ▀█ ▐█ ▀ ▪██ ▐█ ▌▪▐█ ▀█▪▐█ ▀█ •█▌ ▐█▐▌·
//  ▐█ ▌▐▌▐█·▄█▀▀█ ▄█ ▀█▄▐█·██ ▄▄▐█▀▀█▄▄█▀▀█ ▐█▐ ▐▌▐▀▀▀
//  ██ ██▌▐█▌▐█ ▪▐▌▐█▄▪▐█▐█▌▐███▌██▄▪▐█▐█ ▪▐▌██▐ █▌▐█▄▄▌
//  ▀▀  █▪▀▀▀ ▀  ▀ ·▀▀▀▀ ▀▀▀·▀▀▀ ·▀▀▀▀  ▀  ▀ ▀▀  █▪ ▀▀▀
//      Magicbane Emulator Project © 2013 - 2026
//                https://www.magicbane.com

package engine.parsers.objects.wpak;

import org.pmw.tinylog.Logger;

// A CompoundCurve in the server's (ramp, add) form, as stored in the DB ramp/useRampAdd and ramp/useAddFormula columns.
// Mapping checked against every static_power_effectmod and static_power_action row (JSON-Refactor-Plan/scripts/p41.py).

public class CurveRamp {

    private static final int RAMP_RANGE = 100;

    public final float ramp;
    public final boolean useAdd;

    private CurveRamp(float ramp, boolean useAdd) {
        this.ramp = ramp;
        this.useAdd = useAdd;
    }

    // Null when the curve is unknown or has no ramp form (multi-segment, or a range other than 100).
    public static CurveRamp fromCurve(String curveName) {

        CompoundCurveTemplate curve = CompoundCurveTemplate._curves.get(curveName);
        CompoundCurveTemplate.Segment segment;

        if (curve == null || curve.segments.size() != 1)
            return null;

        segment = curve.segments.get(0);

        if (segment.down_per_range != RAMP_RANGE)
            return null;

        switch (segment.simple_curve) {
            case "FlatLine":
                return new CurveRamp(0, true);
            case "SlopedLine":
                return new CurveRamp(segment.params[0], true);
            case "SlopedInitValLine":
                return new CurveRamp(segment.params[0], false);
            default:
                return null;
        }
    }

    // Boot check against known DB effectmod rows, one per curve kind, then a list of curves with no ramp form.
    public static void verifyRampForms() {

        int noRampCount = 0;

        verify("SL0083Up", 0.83f, true);       // 1AX-001A MeleeDamageModifier
        verify("SL0100Down", -1f, true);       // ACM-003A MeleeDamageModifier
        verify("DefaultFlat", 0f, true);       // 1AX-003A DCV
        verify("SIVL0014", 0.014f, false);     // ANM-002A Health
        verify("SL0050Down", -0.5f, true);     // CON-100A Health

        for (CompoundCurveTemplate curve : CompoundCurveTemplate._curves.values())
            if (fromCurve(curve.name) == null) {
                Logger.warn("Compound curve " + curve.name + " has no ramp form");
                noRampCount++;
            }

        Logger.info("Compound curves with a ramp form: " + (CompoundCurveTemplate._curves.size() - noRampCount)
                + " of " + CompoundCurveTemplate._curves.size());
    }

    private static void verify(String curveName, float ramp, boolean useAdd) {

        CurveRamp curveRamp = fromCurve(curveName);

        if (curveRamp == null || Math.abs(curveRamp.ramp - ramp) > 0.0001f || curveRamp.useAdd != useAdd)
            Logger.error("Curve ramp check failed for " + curveName + ": expected (" + ramp + ", " + useAdd + ")"
                    + (curveRamp == null ? " got none" : " got (" + curveRamp.ramp + ", " + curveRamp.useAdd + ")"));
    }
}