#include "sdlpp_renderobject.hpp"
#include <cmath>

namespace SDLPP {
/* wheter to use entire texture rather than just a part of it */
bool RenderObject::entireTexture() {
    return src_rect.x == -1 || src_rect.y == -1 || src_rect.w == -1 ||
           src_rect.h == -1;
}
void RenderObject::render() {
    if ( !getHidden() ) {
        if ( polygon )
            polygon->render( *renderer );
        if ( texture != NULL ) {
            SDL_Rect *src = NULL;
            if ( animation.empty() || !animating ) {
                if ( !entireTexture() )
                    src = &src_rect;
            } else {
                src = &animation[animation_index];
            }
            SDL_Point *rotation_point = NULL;
            if ( rotation_center.getX() != -1 ) {
                rotation_point = &rotation_center_point;
            }
            SDL_RenderCopyEx( renderer->getRendererPtr(),
                              texture->getTexturePtr(), src, &rect,
                              rotation_angle, rotation_point, flip );
        }
        if ( hasCollisions() && renderer->getRenderColiders() ) {
            for ( const auto &col : getCollisions() )
                col->render( *renderer, colider_color );
        }
    }
}
void RenderObject::setPos( double x, double y ) {
    setPos( Vec2D< double >( x, y ) );
}
void RenderObject::setPos( const std::pair< double, double > &pos ) {
    setPos( Vec2D< double >( pos.first, pos.second ) );
}
void RenderObject::setPos( const Vec2D< double > &vec ) {
    original = vec;
//    updateSizeAndPosition();
}
Vec2D< double > RenderObject::getPos() const {
    return original;
}
Vec2D< double > RenderObject::getAbsolutePos() const {
    return current;
}
std::vector< uint64_t >
RenderObject::colidesWith( const RenderObject &other ) const {
    if ( !hasCollisions() || !other.hasCollisions() || getHidden() ||
         other.getHidden() ) {
        return {};
    }
    std::vector< uint64_t > ret = {};
    for ( const auto &x : collisions ) {
        for ( const auto &y : other.getCollisions() ) {
            if ( x->colidesWith( *y ) ) {
                ret.push_back( x->getId() );
                break;
            }
        }
    }
    return ret;
}
void RenderObject::removeCollisions() {
    collisions.clear();
}
bool RenderObject::hasCollisions() const {
    return !collisions.empty();
}
const std::vector< std::shared_ptr< CollisionPolygon > > &
RenderObject::getCollisions() const {
    return collisions;
}
void RenderObject::setTexture( const std::shared_ptr< Texture > &t,
                               const SDL_Rect &source_rect ) {
    texture = t;
    src_rect = source_rect;
}
void RenderObject::setTextureKeepSRC( const std::shared_ptr< Texture > &t ) {
    setTexture(t, src_rect);
}
void RenderObject::setTexture( const std::shared_ptr< Texture > &t,
                               int source_x, int source_y, int source_width,
                               int source_height ) {
    setTexture( t, { source_x, source_y, source_width, source_height } );
}
void RenderObject::setTexture( const std::string &img_path,
                               const SDL_Rect &source_rect ) {
    texture = std::make_shared< Texture >( renderer, img_path );
    src_rect = source_rect;
}
void RenderObject::setTexture( const std::string &img_path, int source_x,
                               int source_y, int source_width,
                               int source_height ) {
    setTexture( img_path, { source_x, source_y, source_width, source_height } );
}
void RenderObject::setTexture( Font &font, const std::string &text,
                               const std::string &color,
                               const std::string &outline_color,
                               int outline_size ) {
    texture = std::make_shared< Texture >( renderer, font, text, color,
                                           outline_color, outline_size );
    src_rect = { -1, -1, -1, -1 };
}
void RenderObject::unsetTexture() {
    texture.reset();
}
void RenderObject::unsetColor() {
    polygon.reset();
}
// per second, relative to window width
void RenderObject::setMovementSpeed( double speed ) {
    movementSpeed = speed;
}
void RenderObject::addMovement( double x, double y ) {
    movementDirection += { x, y };
}
void RenderObject::setMovement( double x, double y ) {
    movementDirection = { x, y };
}
Vec2D< double > RenderObject::getMovement() const {
    return movementDirection;
}
void RenderObject::resetMovementX() {
    movementDirection = { 0, movementDirection.getY() };
}
void RenderObject::resetMovementY() {
    movementDirection = { movementDirection.getX(), 0 };
}
void RenderObject::clearColided() {
    colidedWith.clear();
}
void RenderObject::addColided( std::shared_ptr< RenderObject > &obj ) {
    colidedWith.push_back( obj );
}
std::vector< std::shared_ptr< RenderObject > > &RenderObject::getColidedWith() {
    return colidedWith;
}
void RenderObject::setId( uint64_t input_id ) {
    id = input_id;
}
uint64_t RenderObject::getId() const {
    return id;
}
void RenderObject::setHidden( bool hid ) {
    hidden = hid;
}
bool RenderObject::getHidden() const {
    return hidden;
}
void RenderObject::destroy() {
//    setHidden( true );
    kill = true;
}
bool RenderObject::getKilled() {
    return kill;
}
void RenderObject::setColiderColor( const std::string &color ) {
    colider_color = getSDLColorHEX( color );
}

void RenderObject::animate( int ticks ) {
    if ( animating && !animation.empty() ) {
        animation_next_frame -= ticks;
        if ( animation_next_frame <= 0 ) {
            animation_index = ( animation_index + 1 ) % animation.size();
            animation_next_frame =
                animation_next_frame_base + animation_next_frame;
        }
    }
}

void RenderObject::move( int ticks ) {
    if ( permanent )
        return;
    auto addx = movementSpeed * movementDirection.getX() * ticks / 1000.0;
    auto addy = movementSpeed * movementDirection.getY() * ticks / 1000.0;
    if ( std::isnan( addx ) || std::isnan( addy ) )
        return;

    original += { addx, addy };

    custom_move( ticks );

    updateSizeAndPosition();
}
void RenderObject::setPermanent( bool perm ) {
    permanent = perm;
    setStatic( perm );
}
bool RenderObject::getPermanent() const {
    return permanent;
}
bool RenderObject::isStatic() {
    return is_static;
}
void RenderObject::setStatic( bool stat ) {
    is_static = stat;
}
std::shared_ptr< Renderer > RenderObject::getRenderer() const {
    return renderer;
}
void RenderObject::setSceneID( int id ) {
    scene_id = id;
}
void RenderObject::copyTo( std::shared_ptr< RenderObject > other ) {
    other->collisions.clear();
    for ( auto &colider : collisions ) {
        other->collisions.push_back( colider->copySelf() );
    }
    other->texture.reset();
    if ( texture ) {
        other->texture = std::make_shared< Texture >( *texture );
    }
    other->polygon.reset();
    if ( polygon ) {
        other->polygon = polygon->copySelf();
    }
    other->colidedWith.clear();
}
void RenderObject::setTextureAlpha( uint8_t alpha ) {
    texture->setAlpha( alpha );
}
void RenderObject::setTextureSourceRect( const SDL_Rect &source_rect ) {
    src_rect = source_rect;
}
void RenderObject::setTextureSourceRect( int x, int y, int w, int h ) {
    setTextureSourceRect( { x, y, w, h } );
}
SDL_Rect RenderObject::getTextureSourceRect() const {
    return src_rect;
}
void RenderObject::setAnimationFrames( const std::vector< SDL_Rect > &frames ) {
    animation = frames;
}
void RenderObject::addAnimationFrame( const SDL_Rect &frame ) {
    animation.push_back( frame );
}
void RenderObject::addAnimationFrame( const int x, const int y, const int w,
                                      const int h ) {
    addAnimationFrame( { x, y, w, h } );
}
void RenderObject::pauseAnimation() {
    animating = false;
}
void RenderObject::resumeAnimation() {
    animating = true;
}
void RenderObject::removeAnimation() {
    animation.clear();
}
void RenderObject::setAnimationSpeed( const double fps ) {
    animation_fps = fps;
    animation_next_frame = animation_next_frame_base = 1000 / fps;
}
void RenderObject::visit( Visitor &visitor ) {
    visitor.visit( *this );
}
void RenderObject::setAlignment( ObjectAlignment horizontal,
                                 ObjectAlignment vertical ) {
    _horizontal = horizontal;
    _vertical = vertical;
}
void RenderObject::flipHorizontally() {
    if ( flip & SDL_FLIP_HORIZONTAL ) {
        flip = static_cast< SDL_RendererFlip >( flip & ~SDL_FLIP_HORIZONTAL );
    } else {
        flip = static_cast< SDL_RendererFlip >( flip | SDL_FLIP_HORIZONTAL );
    }
}
void RenderObject::flipVertically() {
    if ( flip & SDL_FLIP_VERTICAL ) {
        flip = static_cast< SDL_RendererFlip >( flip & ~SDL_FLIP_VERTICAL );
    } else {
        flip = static_cast< SDL_RendererFlip >( flip | SDL_FLIP_VERTICAL );
    }
}
void RenderObject::setRotationCenter( const Vec2D< double > &center ) {
    rotation_center = center;
    rotation_center_point = { static_cast< int >( center.getX() * rect.w ),
                              static_cast< int >( center.getY() * rect.h ) };
}
void RenderObject::rotateClockwise( int angle ) {
    rotation_angle = ( rotation_angle + angle ) % 360;
}
void RenderObject::rotateCounterClockwise( int angle ) {
    rotateClockwise( 360 - ( angle % 360 ) );
}
void RenderObject::setRotationSpeed(int speed) {
    rotation_speed = speed;
}
void RenderObject::startRotation() {
    rotating = true;
}
void RenderObject::stopRotation() {
    rotating = false;
}

Vec2D< double > RenderObject::computeAlignmentAdditions() {
    double x_addition = 0;
    double y_addition = 0;
    auto dimensions = renderer->getDoubleDimensions();
    auto width_diff = dimensions.getX() - 1;
    auto height_diff = dimensions.getY() - 1;
    switch ( _horizontal ) {
    case OBJ_CENTER:
        x_addition = width_diff / 2;
        break;
    case OBJ_END:
        x_addition = width_diff;
    default:
        break;
    }
    switch ( _vertical ) {
    case OBJ_CENTER:
        y_addition = height_diff / 2;
        break;
    case OBJ_END:
        y_addition = height_diff;
    default:
        break;
    }
    return { x_addition, y_addition };
}
void RenderObject::updateXY() {
    auto additions = computeAlignmentAdditions();
    current = { original.getX() + additions.getX(),
                original.getY() + additions.getY() };
}
void RenderObject::custom_move(int ticks) {
    if(isRotating()) {
        auto angle = ticks * rotation_speed / 1000; // tick = millisecond
        rotateCounterClockwise(angle);
    }
}
} // namespace SDLPP