#pragma once
#include <windows.h>

namespace dnf90_combat_panel
{
// Current EXE sub_10DC420 transforms a point around the live UI pivot.
using NativeTransformPoint = void (__thiscall*)(void*, float*, float*, float, float);

struct Position
{
    int x;
    int y;
};

inline bool PositionSidecar(
    int nativeX, int nativeY, int nativeWidth, int nativeHeight,
    int viewportWidth, int viewportHeight, int clientWidth, int clientHeight,
    int sidecarWidth, int sidecarHeight, int frameRight, int frameTop,
    void* transformOwner, NativeTransformPoint transform, Position* result)
{
    if (!result || !transformOwner || !transform ||
        viewportWidth < 320 || viewportWidth > 16384 ||
        viewportHeight < 200 || viewportHeight > 16384 ||
        clientWidth < 8 || clientWidth > 16384 ||
        clientHeight < 8 || clientHeight > 16384 ||
        nativeX < -64 || nativeY < -64 ||
        nativeX > viewportWidth || nativeY > viewportHeight ||
        nativeWidth < 160 || nativeWidth > 640 ||
        nativeHeight < 200 || nativeHeight > 760 ||
        sidecarWidth <= 0 || sidecarHeight <= 0) {
        return false;
    }

    float right = static_cast<float>(nativeX + nativeWidth + frameRight);
    float top = static_cast<float>(nativeY - frameTop);
    float left = static_cast<float>(nativeX);
    float unusedY = static_cast<float>(nativeY);
    transform(transformOwner, &right, &top, 0.0f, 0.0f);
    transform(transformOwner, &left, &unusedY, 0.0f, 0.0f);
    // Comparisons also reject NaN, before any float-to-int conversion.
    if (!(right >= -65536.0f && right <= 65536.0f &&
          top >= -65536.0f && top <= 65536.0f &&
          left >= -65536.0f && left <= 65536.0f)) {
        return false;
    }
    int x = static_cast<int>(right * clientWidth / viewportWidth);
    int y = static_cast<int>(top * clientHeight / viewportHeight);
    if (x + sidecarWidth > clientWidth - 4) {
        x = static_cast<int>(left * clientWidth / viewportWidth) - sidecarWidth;
    }
    if (x + sidecarWidth > clientWidth - 4) x = clientWidth - sidecarWidth - 4;
    if (x < 4) x = 4;
    if (y + sidecarHeight > clientHeight - 4) y = clientHeight - sidecarHeight - 4;
    if (y < 4) y = 4;
    result->x = x;
    result->y = y;
    return true;
}
}