/*
 * Software written by Jared Bruni https://github.com/lostjared
 
 This software is dedicated to all the people that experience mental illness.
 
 Website: http://lostsidedead.com
 YouTube: http://youtube.com/LostSideDead
 Instagram: http://instagram.com/lostsidedead
 Twitter: http://twitter.com/jaredbruni
 Facebook: http://facebook.com/LostSideDead0x
 
 You can use this program free of charge and redistrubute it online as long
 as you do not charge anything for this program. This program is meant to be
 100% free.
 
 BSD 2-Clause License
 
 Copyright (c) 2020, Jared Bruni
 All rights reserved.
 
 Redistribution and use in source and binary forms, with or without
 modification, are permitted provided that the following conditions are met:
 
 * Redistributions of source code must retain the above copyright notice, this
 list of conditions and the following disclaimer.
 
 * Redistributions in binary form must reproduce the above copyright notice,
 this list of conditions and the following disclaimer in the documentation
 and/or other materials provided with the distribution.
 
 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
 FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
 DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
 CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
 OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
 */

#include"ac.h"

// Image blend
// cv::Mat as reference
void ac::imageBlend(cv::Mat &frame) {
    static double pos = 1.0f;// static pos set to 1
    if(blend_set == true) {// if image is set
        int i,z;
        cv::Mat reimage;
        ac_resize(blend_image, reimage, frame.size());
        for(i = 0; i < frame.cols; ++i) { // top to bottom
            for(z = 0; z < frame.rows; ++z) {// left to right
                // get resized x,y
                cv::Vec3b &current = pixelAt(frame,z, i);// get current pixel
                cv::Vec3b im = reimage.at<cv::Vec3b>(z, i);// get pixel to blend from resized x,y
                // set pixel values
                current[0] = static_cast<unsigned char>(current[0]+(im[0]*pos));
                current[1] = static_cast<unsigned char>(current[1]+(im[1]*pos));
                current[2] = static_cast<unsigned char>(current[2]+(im[2]*pos));
                swapColors(frame, z, i);// swap colors
                if(isNegative) invert(frame, z, i);// invert pixel
            }
        }
    }
    static double pos_max = 7.0f;// max pos value
    static int direction = 1;
    procPos(direction, pos, pos_max);
}
// takes cv::Mat reference
void ac::imageBlendTwo(cv::Mat &frame) {
    static double pos = 1.0f; // static pos equal 1.0
    if(blend_set == true) {// if image is set to blend with
        cv::Mat reimage;
        ac_resize(blend_image, reimage, frame.size());
        int i,z;// loop variables
        for(i = 0; i < frame.cols; ++i) { // left to right
            for(z = 0; z < frame.rows; ++z) {// top to bottom
                // resize x,y
                // grab pixels
                cv::Vec3b &current = pixelAt(frame,z, i);
                cv::Vec3b im = reimage.at<cv::Vec3b>(z, i);
                // set pixel values
                current[0] = static_cast<unsigned char>(im[0]+(current[0]*pos));
                current[1] = static_cast<unsigned char>(im[1]+(current[1]*pos));
                current[2] = static_cast<unsigned char>(im[2]+(current[2]*pos));
                swapColors(frame, z, i);// swap colors
                if(isNegative) invert(frame, z, i); // invert pixel
            }
        }
    }
    static double pos_max = 7.0f;// max position set to 7.0
    static int direction = 1;
    procPos(direction, pos, pos_max);
}
// blend with Image
// takes cv::Mat reference
void ac::imageBlendThree(cv::Mat &frame) {
    if(blend_set == true) { // if blend_set is true (image selected)
        cv::Mat reimage;
        ac_resize(blend_image, reimage, frame.size());
        static double pos = 1.0f;// static pos equals 1.0
        for(int i = 0; i < frame.cols; ++i) { // from top to bottom
            for(int z = 0; z < frame.rows; ++z) {// from left to right
                // calculate x,y pixel position
                // get pixel to manipulate reference
                cv::Vec3b &pixel = pixelAt(frame,z, i);
                // get image pixel from calculated x,y positions
                cv::Vec3b im = reimage.at<cv::Vec3b>(z, i);
                // calculate pixel data
                pixel[0] += (pixel[0]^im[0]);
                pixel[1] += (pixel[1]^im[1]);
                pixel[2] += static_cast<unsigned char>((pixel[2]^im[2])*pos);
                swapColors(frame, z, i);//swap colors
                if(isNegative) invert(frame, z, i);// if isNegative invert pixel
            }
        }
        // static int directione quals 1
        static int direction = 1;
        // static pos_max equals 7.0
        static double pos_max = 7.0f;
        if(direction == 1) {// if direction equals 1
            pos += 0.005;// pos plus equal 0.005
            if(pos > pos_max) {// pos greater than pos_max
                pos = pos_max;// pos set to pos_max
                direction = 0;// direction set to zero
                pos_max += 0.5f;// pos_max plus equal 0.5
            }
        } else if(direction == 0) {// direction is set to 0
            pos -= 0.005;// pos minus equal 0.005
            if(pos <= 1) {/// pos less than equal 1
                if(pos_max > 15) pos_max = 1.0f;//reset pos_max if greater than 15
                direction = 1;// direction set to 1
            }
        }
    }
}

// imageblend4
void ac::imageBlendFour(cv::Mat &frame) {
    if(blend_set == true) {
        static int state = 0;
        static double pos = 1.0;
        int w = frame.cols;// frame width
        int h = frame.rows;// frame height
        int cw = blend_image.cols;
        int ch = blend_image.rows;
        for(int z = 3; z < h-3; ++z) {// top to bottom
            for(int i = 3; i < w-3; ++i) {// left to right
                // current pixel by reference
                cv::Vec3b &pixel = pixelAt(frame,z, i);
                // calculate resized image based x,y positions
                int cX = AC_GetFX(blend_image.cols, i, frame.cols);
                int cY = AC_GetFZ(blend_image.rows, z, frame.rows);
                // grab pixel refernces from blend_image
                cv::Vec3b &pr = blend_image.at<cv::Vec3b>((ch-cY), (cw-cX));
                cv::Vec3b &pg = blend_image.at<cv::Vec3b>((ch-cY), cX);
                cv::Vec3b &pb = blend_image.at<cv::Vec3b>(cY, (cw-cX));
                // perform operation based on current state variable
                switch(state) {
                    case 0:
                        pixel[0] += static_cast<unsigned char>((pr[0]+pg[1]+pb[2])*pos);
                        pixel[1] += static_cast<unsigned char>((pr[2]+pg[1]+pb[0])*pos);
                        break;
                    case 1:
                        pixel[1] += static_cast<unsigned char>((pr[2]+pg[1]+pb[0])*pos);
                        pixel[2] += static_cast<unsigned char>((pr[0]+pg[1]+pb[2])*pos);
                        break;
                    case 2:
                        pixel[2] += static_cast<unsigned char>((pr[0]+pg[1]+pb[2])*pos);
                        pixel[0] += static_cast<unsigned char>((pr[2]+pg[1]+pb[0])*pos);
                        break;
                }
                
            }
            
        }
        ++state;// increase state
        if(state > 2) state = 0; // greater than 2 reset state
        static int direction = 1;
        // static pos_max equals 7.0
        static double pos_max = 3.0f;
        if(direction == 1) {// if direction equals 1
            pos += 0.005;// pos plus equal 0.005
            if(pos > pos_max) {// pos greater than pos_max
                pos = pos_max;// pos set to pos_max
                direction = 0;// direction set to zero
                pos_max += 0.5f;// pos_max plus equal 0.5
            }
        } else if(direction == 0) {// direction is set to 0
            pos -= 0.005;// pos minus equal 0.005
            if(pos <= 1) {/// pos less than equal 1
                if(pos_max > 3) pos_max = 1.0f;//reset pos_max if greater than 15
                direction = 1;// direction set to 1
            }
        }
    }
}

void ac::ImageFile(cv::Mat &frame) {
    if(blend_set == true) {
        const int w = frame.cols;
        const int h = frame.rows;
        cv::Mat reimage;
        ac_resize(blend_image, reimage, frame.size());
        for(int z = 0;  z < h; ++z) {
            for(int i = 0; i < w; ++i) {
                cv::Vec3b &pixel = pixelAt(frame,z, i);
                cv::Vec3b add_i = reimage.at<cv::Vec3b>(z, i);
                pixel[0] += add_i[0];
                pixel[1] += add_i[1];
                pixel[1] += add_i[2];
                swapColors(frame, z, i);// swap colors
                if(isNegative) invert(frame, z, i); // invert pixel
            }
        }
    }
    
}
void ac::ImageXor(cv::Mat &frame) {
    if(blend_set == true) {
        const int w = frame.cols;
        const int h = frame.rows;
        cv::Mat reimage;
        ac_resize(blend_image, reimage, frame.size());
        static double alpha = 1.0, alpha_max = 4.0;
        for(int z = 0;  z < h; ++z) {
            for(int i = 0; i < w; ++i) {
                cv::Vec3b &pixel = pixelAt(frame,z, i);
                cv::Vec3b add_i = reimage.at<cv::Vec3b>(z, i);
                for(int j = 0; j < 3; ++j)
                    pixel[j] = cv::saturate_cast<unsigned char>((pixel[j]^add_i[j])*alpha);
                swapColors(frame, z, i);// swap colors
                if(isNegative) invert(frame, z, i); // invert pixel
            }
        }
        static int direction = 1;
        procPos(direction, alpha, alpha_max);
    }
}

void ac::ImageAlphaBlend(cv::Mat &frame) {
    if(blend_set == true) {
        const int w = frame.cols;
        const int h = frame.rows;
        static double alpha = 1.0, alpha_max = 2.0;
        for(int z = 0;  z < h; ++z) {
            for(int i = 0; i < w; ++i) {
                cv::Vec3b &pixel = pixelAt(frame,z, i);
                int cX = AC_GetFX(blend_image.cols, i, frame.cols);
                int cY = AC_GetFZ(blend_image.rows, z, frame.rows);
                cv::Vec3b add_i = blend_image.at<cv::Vec3b>(cY, cX);
                for(int j = 0; j < 3; ++j)
                    pixel[j] = static_cast<unsigned char>((pixel[j]*(alpha+1)) + (add_i[j] * alpha));
                
                swapColors(frame, z, i);// swap colors
                if(isNegative) invert(frame, z, i); // invert pixel
            }
        }
        static int direction = 1;
        procPos(direction, alpha, alpha_max);
    }
}

void ac::ImageInter(cv::Mat &frame) {
    if(blend_set == true) {
        static int start = 0, restart = 0;
        const int w = frame.cols;
        const int h = frame.rows;
        cv::Mat reimage;
        ac_resize(blend_image, reimage, frame.size());
        for(int z = 0;  z < h; ++z) {
            for(int i = 0; i < w; ++i) {
                cv::Vec3b &pixel = pixelAt(frame,z, i);
                cv::Vec3b add_i = reimage.at<cv::Vec3b>(z, i);
                if(start == 0) {
                    pixel = add_i;
                }
                swapColors(frame, z, i);// swap colors
                if(isNegative) invert(frame, z, i); // invert pixel
            }
            start = (start == 0) ? 1 : 0;
        }
        if(restart == 0) {
            start = 1;
            restart = 1;
        } else {
            start = 0;
            restart = 0;
        }
    }
}

// blend with image
void ac::ImageX(cv::Mat &frame) {
    if(blend_set == true) {
        
        if(blend_image.empty())
            return;
        
        static double alpha = 1.0, alpha_max = 8.0;
        static cv::Mat frame_blend = blend_image.clone();
        
        for(int i = 1; i < frame.cols-2; ++i) {
            for(int z = 1; z < frame.rows-2; ++z) {
                int cX = AC_GetFX(frame_blend.cols, i, frame.cols);
                int cY = AC_GetFZ(frame_blend.rows, z, frame.rows);
                
                if(cX >= frame_blend.cols || cY >= frame_blend.rows)
                    continue;
                
                cv::Vec3b &pixel = frame_blend.at<cv::Vec3b>(cY, cX);
                cv::Vec3b pix = frame_blend.at<cv::Vec3b>(cY+1, cX+1);
                pixel = pix;
                cv::Vec3b &pix_value = pixelAt(frame,z, i);
                for(int j = 0; j < 3; ++j)
                    pix_value[j] = static_cast<unsigned char>(pixel[j]+(pix_value[j]*alpha));
            }
        }
        static int direction = 1;
        procPos(direction, alpha, alpha_max);
    }
}

void ac::SmoothRandomImageBlend(cv::Mat &frame) {
    if(blend_set == true) {
        
        if(testSize(frame) == false)
            return;
        
        static MatrixCollection<8> collection;
        DrawFunction rfunc = getRandomFilter();
        cv::Mat temp_frame;
        ac_resize(blend_image, temp_frame, frame.size());
        rfunc(temp_frame);
        collection.shiftFrames(temp_frame);
        Smooth(frame, &collection);
    }
}

void ac::SmoothImageAlphaBlend(cv::Mat &frame) {
    if(blend_set == true) {
        static double alpha = 1.0, alpha_max = 2.0;
        static MatrixCollection<8> collection;
        cv::Mat temp_frame;
        cv::Mat temp_image;
        cv::Mat blend_image_scaled;
        ac_resize(blend_image, blend_image_scaled, frame.size());
        temp_frame = frame.clone();
        AlphaBlend(temp_frame,blend_image_scaled,frame,alpha);
        collection.shiftFrames(frame);
        Smooth(temp_frame, &collection);
        frame = temp_frame.clone();
        static int direction = 1;
        procPos(direction, alpha, alpha_max, 8, 0.05);
    }
}

void ac::BlendImageOnOff(cv::Mat &frame) {
    if(blend_set == true) {
        static double alpha = 1.0, alpha_max = 4.0;
        static int index = 0;
        for(int z = 3; z < frame.rows-3; ++z) {
            for(int i = 3; i < frame.cols-3; ++i) {
                int cX = AC_GetFX(blend_image.cols, i, frame.cols);
                int cY = AC_GetFZ(blend_image.rows, z, frame.rows);
                cv::Vec3b pix[4];
                pix[0] = blend_image.at<cv::Vec3b>(cY, cX);
                pix[1] = blend_image.at<cv::Vec3b>(cY+1, cX);
                pix[2] = blend_image.at<cv::Vec3b>(cY, cX+1);
                pix[3] = blend_image.at<cv::Vec3b>(cY+1, cX+1);
                cv::Scalar value;
                for(int j = 0; j < 4; ++j) {
                    for(int q = 0; q < 3; ++q) {
                        value[q] += pix[j][q];
                    }
                }
                cv::Vec3b &pixel = pixelAt(frame,z, i);
                for(int j = 0; j < 3; ++j) {
                    value[j] /= 4;
                    unsigned char val = static_cast<unsigned char>(value[j]);
                    switch(index) {
                        case 0:
                            pixel[j] += static_cast<unsigned char>(val*alpha);
                            break;
                        case 1:
                            pixel[j] -= static_cast<unsigned char>(val*alpha);
                            break;
                    }
                }
                swapColors(frame, z, i);// swap colors
                if(isNegative) invert(frame, z, i);// if isNegative invert pixel */
            }
        }
        ++index;
        if(index > 1) index = 0;
        
        static int dir = 1;
        procPos(dir, alpha, alpha_max);
    }
}

void ac::XorSelfAlphaImage(cv::Mat &frame) {
    if(blend_set == true) {
        static double alpha = 1.0, alpha_max = 2.0;
        static double alpha_r = 14.0;
        cv::Mat reimage;
        ac_resize(blend_image, reimage, frame.size());
        for(int z = 0; z < frame.rows; ++z) {
            for(int i = 0; i < frame.cols; ++i) {
                cv::Vec3b &pixel = pixelAt(frame,z, i);
                cv::Vec3b pix = reimage.at<cv::Vec3b>(z, i);
                for(int j = 0; j < 3; ++j) {
                    //pixel[j] ^= (1-((pixel[j] + pix[j])) * (2+static_cast<unsigned char>(alpha)));
                    pixel[j] = static_cast<unsigned char>((pixel[j] * (1+alpha)) + (pix[j] * alpha_r));
                }
                swapColors(frame, z, i);// swap colors
                if(isNegative) invert(frame, z, i);// if isNegative invert pixel */
            }
        }
        static int dir = 1, dir_r = 0;
        procPos(dir, alpha, alpha_max);
        procPos(dir_r, alpha_r, alpha_max);
    }
}

void ac::AlphaBlendImageXor(cv::Mat &frame) {
    if(blend_set == true) {
        static MatrixCollection<8> collection;
        SmoothImageAlphaBlend(frame);
        Bitwise_XOR(frame);
        collection.shiftFrames(frame);
        Smooth(frame, &collection);
    }
}

void ac::ImageShiftMatrixLeft(cv::Mat &frame) {
    if(blend_set) {
        static double alpha = 1.0, alpha_max = 3.0;
        static cv::Mat image = blend_image.clone();
        if(reset_filter == true) {
            reset_filter = false;
            image = blend_image.clone();
        }
        for(int i = 0; i < image.cols-1; ++i) {
            for(int z = 0; z < image.rows-1; ++z) {
                cv::Vec3b val = image.at<cv::Vec3b>(z+1, i+1);
                cv::Vec3b &target = image.at<cv::Vec3b>(z, i);
                target = val;
            }
        }
        for(int i = 0; i < frame.cols; ++i) {
            for(int z = 0; z < frame.rows; ++z) {
                int cX = AC_GetFX(image.cols, i, frame.cols);
                int cY = AC_GetFZ(image.rows, z, frame.rows);
                cv::Vec3b &pixel = pixelAt(frame,z, i);
                cv::Vec3b src_pixel = image.at<cv::Vec3b>(cY, cX);
                for(int j = 0; j < 3; ++j)
                    pixel[j] = static_cast<unsigned char>((alpha * pixel[j])) ^ src_pixel[j];
                
                swapColors(frame, z, i);// swap colors
                if(isNegative) invert(frame, z, i);// if isNegative invert pixel */
            }
        }
        static int dir = 1;
        procPos(dir, alpha, alpha_max);
    }
}

void ac::ExactImage(cv::Mat &frame) {
    if(blend_set == false)
        return;
    cv::Mat reimage;
    ac_resize(blend_image, reimage, frame.size());
    reimage.copyTo(frame);
}

// Use this with other filters like MedianBlend
void ac::BlendImageXor(cv::Mat &frame) {
    if(blend_set == true) {
        cv::Mat reimage;
        ac_resize(blend_image, reimage, frame.size());
        static double alpha = 1.0, alpha_max = 7.0;
        for(int z = 0; z < frame.rows; ++z) {
            for(int i = 0; i < frame.cols; ++i) {
                cv::Vec3b &pixel = pixelAt(frame,z, i);
                cv::Vec3b add_i = reimage.at<cv::Vec3b>(z, i);
                for(int j = 0; j < 3; ++j) {
                    pixel[j] = static_cast<unsigned char>((pixel[j]^add_i[j])*alpha);
                }
            }
        }
        static int dir = 1;
        procPos(dir, alpha, alpha_max, 8, 0.01);
        DarkenFilter(frame);
        DarkenFilter(frame);
    }
}

void ac::BlendImageAround_Median(cv::Mat &frame) {
    if(blend_set == true) {
        cv::Mat reimage;
        ac_resize(blend_image, reimage, frame.size());
        static double alpha = 1.0, alpha_max = 7.0;
        for(int z = 0; z < frame.rows; ++z) {
            for(int i = 0; i < frame.cols; ++i) {
                cv::Vec3b &pixel = pixelAt(frame,z, i);
                cv::Vec3b pixel_data[4];
                pixel_data[0] = pixel;
                pixel_data[1] = pixelAt(frame,frame.rows-z-1, i);
                pixel_data[2] = pixelAt(frame,z, frame.cols-i-1);
                pixel_data[3] = pixelAt(frame,frame.rows-z-1, frame.cols-i-1);
                cv::Vec3b add_i = reimage.at<cv::Vec3b>(z, i);
                cv::Scalar val;
                for(int j = 0; j < 4; ++j) {
                    for(int q = 0; q < 3; ++q)
                        val[q] += pixel_data[j][q];
                }
                val[0] /= 4;
                val[1] /= 4;
                val[2] /= 4;
                for(int j = 0; j < 3; ++j) {
                    pixel[j] = pixel[j] ^ add_i[j] ^ static_cast<unsigned char>(val[j]);
                }
            }
        }
        static int dir = 1;
        procPos(dir, alpha, alpha_max, 8, 0.01);
        DarkenFilter(frame);
        DarkenFilter(frame);
        MedianBlend(frame);
    }
}

void ac::ImageBlendTransform(cv::Mat &frame) {
    
    if(blend_set == true) {
        static double alpha = 1.0, alpha_max = 4.0, speed = 0.1;
        static MatrixCollection<8> collection;
        collection.shiftFrames(frame);
        cv::Mat reimage;
        ac_resize(blend_image, reimage, frame.size());
        for(int z = 0; z < frame.rows; ++z) {
            for(int i = 0; i < frame.cols; ++i) {
                cv::Vec3b &pixel = pixelAt(frame,z, i);
                cv::Vec3b orig_pix = pixel;
                cv::Vec3b add_i = blend_image.at<cv::Vec3b>(z, i);
                for(int j = 0; j < collection.size(); ++j) {
                    cv::Vec3b color_v = collection.frames[j].at<cv::Vec3b>(z, i);
                    for(int q = 0; q < 3; ++q) {
                        pixel[q] ^= color_v[q];
                    }
                }
                for(int q = 0; q < 3; ++q) {
                    pixel[q] ^= static_cast<unsigned char>((orig_pix[q] * alpha) + (add_i[q] * alpha));
                }
            }
        }
        static int dir = 1;
        if(dir == 1) {
            alpha += speed;
            if(alpha > alpha_max) {
                dir = 0;
                speed += 0.1;
            }
        } else {
            alpha -= speed;
            if(alpha <= 0.1) {
                dir = 1;
                speed += 0.1;
            }
        }
        if(speed > 4) speed = 0.1;
        
        DarkenFilter(frame);
        DarkenFilter(frame);
        MedianBlend(frame);
        GaussianBlur(frame);
        GaussianBlur(frame);
    }
}

void ac::MirrorAlphaBlendedImage(cv::Mat &frame) {
    if(blend_set == true) {
        cv::Mat resized, frame_copy, new_copy;
        ac_resize(blend_image, resized, frame.size());
        frame_copy = frame.clone();
        static double alpha = 1.0, alpha_max = 2.0;
        AlphaXorBlend(resized, frame_copy, new_copy, alpha);
        AlphaBlend(new_copy, frame_copy, frame, alpha);
        static int dir = 1;
        procPos(dir, alpha, alpha_max, 2.1, 0.05);
    }
}