'''
author ：  Hatcher W
Email： hcwang@semi.ac.cn
use: 用于创建存储目标检测结果的xml文件
input:网络运算输出结果
output：xml文件
'''
import numpy as np
from lxml import etree


class GEN_Annotations:
    def __init__(self, filename):
        self.root = etree.Element("annotation")

        child1 = etree.SubElement(self.root, "folder")
        child1.text = "Hatcher"

        child2 = etree.SubElement(self.root, "filename")
        child2.text = filename

        child3 = etree.SubElement(self.root, "source")

        child4 = etree.SubElement(child3, "annotation")
        child4.text = "Bird_detection"
        child5 = etree.SubElement(child3, "database")
        child5.text = "Unknown"

        child6 = etree.SubElement(child3, "image")
        child6.text = "flickr"
        child7 = etree.SubElement(child3, "flickrid")
        child7.text = "35435"

    def set_size(self, witdh, height, channel):
        size = etree.SubElement(self.root, "size")
        widthn = etree.SubElement(size, "width")
        widthn.text = str(witdh)
        heightn = etree.SubElement(size, "height")
        heightn.text = str(height)
        channeln = etree.SubElement(size, "depth")
        channeln.text = str(channel)

    def savefile(self, filename):
        tree = etree.ElementTree(self.root)
        tree.write(filename, pretty_print=True, xml_declaration=False, encoding='utf-8')

    def add_pic_attr(self, label, xmin, ymin, xmax, ymax,score):
        object = etree.SubElement(self.root, "object")
        namen = etree.SubElement(object, "name")
        namen.text = str(label).replace("tensor(","").replace("., device='cuda:0')","")
        bndbox = etree.SubElement(object, "bndbox")
        xminn = etree.SubElement(bndbox, "xmin")
        xminn.text = str(xmin)
        yminn = etree.SubElement(bndbox, "ymin")
        yminn.text = str(ymin)
        xmaxn = etree.SubElement(bndbox, "xmax")
        xmaxn.text = str(xmax)
        ymaxn = etree.SubElement(bndbox, "ymax")
        ymaxn.text = str(ymax)
        scoren = etree.SubElement(bndbox, "score")
        scoren.text = str(score)
    def add_pic_attr_bird(self, label, xmin, ymin, xmax, ymax):
        object = etree.SubElement(self.root, "object")
        namen = etree.SubElement(object, "name")
        namen.text = label
        bndbox = etree.SubElement(object, "bndbox")
        xminn = etree.SubElement(bndbox, "xmin")
        xminn.text = str(xmin)
        yminn = etree.SubElement(bndbox, "ymin")
        yminn.text = str(ymin)
        xmaxn = etree.SubElement(bndbox, "xmax")
        xmaxn.text = str(xmax)
        ymaxn = etree.SubElement(bndbox, "ymax")
        ymaxn.text = str(ymax)
    def add_pic_density(self, label, density_h):
        object = etree.SubElement(self.root, "object")
        count = etree.SubElement(object, "count")
        for i in density_h:
            density = etree.SubElement(object, "density_h")
            num=0
            for j in i:
                density.attrib["att{}".format(num)] = j
                num+=1





def make_xml(filename,size_x,size_y,boxes,labels,scores,savename):
    anno = GEN_Annotations(filename)
    anno.set_size(size_y, size_x, 3)
    for i in range(len(boxes)):
        xmin = int(boxes[i][0])
        ymin = int(boxes[i][1])
        xmax = int(boxes[i][2])
        ymax = int(boxes[i][3])
        score = int(scores[i]*1000)
        anno.add_pic_attr("bird", xmin, ymin, xmax, ymax,score)
    anno.savefile(savename)
def make_xml_iccv(filename,size_x,size_y,boxes,savename):
    anno = GEN_Annotations(filename)
    anno.set_size(size_y, size_x, 3)
    for i in range(len(boxes)):
        xmin = int(boxes[i][0])
        ymin = int(boxes[i][1])
        xmax = int(boxes[i][2])
        ymax = int(boxes[i][3])
        anno.add_pic_attr_bird("bird", xmin, ymin, xmax, ymax)
    anno.savefile(savename)


if __name__ == '__main__':
    filename = "000001.jpg"
    anno = GEN_Annotations(filename)
    anno.set_size(1280, 720, 3)
    density = np.array([4,4],dtype=np.float64)
    density = [[0.123,93.132213,0.2132131,0.32132131],[0.123,93.132213,0.2132131,0.32132131],[0.123,93.132213,0.2132131,0.32132131],[0.123,93.132213,0.2132131,0.32132131]]
    anno.add_pic_density("mouse", density)
    anno.savefile("00001.xml")