import random
import string

import cherrypy
import os
import json
from jinja2 import Environment, FileSystemLoader
env = Environment(loader=FileSystemLoader('./'))

import os
import sys
import scene_reader
from tools import check_labels  as check


# BASE_DIR = os.path.dirname(os.path.abspath(__file__))
# sys.path.append(BASE_DIR)

#sys.path.append(os.path.join(BASE_DIR, './algos'))
#import algos.rotation as rotation
from algos import pre_annotate


#sys.path.append(os.path.join(BASE_DIR, '../tracking'))
#import algos.trajectory as trajectory

# extract_object_exe = "~/code/pcltest/build/extract_object"
# registration_exe = "~/code/go_icp_pcl/build/test_go_icp"

# sys.path.append(os.path.join(BASE_DIR, './tools'))
# import tools.dataset_preprocess.crop_scene as crop_scene

class Root(object):
    @cherrypy.expose
    def index(self, scene="", frame=""):
      tmpl = env.get_template('index.html')
      return tmpl.render()
  
    @cherrypy.expose
    def icon(self):
      tmpl = env.get_template('test_icon.html')
      return tmpl.render()

    @cherrypy.expose
    def ml(self):
      tmpl = env.get_template('test_ml.html')
      return tmpl.render()
  
    @cherrypy.expose
    def reg(self):
      tmpl = env.get_template('registration_demo.html')
      return tmpl.render()

    @cherrypy.expose
    def view(self, file):
      tmpl = env.get_template('view.html')
      return tmpl.render()

    # @cherrypy.expose
    # def saveworld(self, scene, frame):

    #   # cl = cherrypy.request.headers['Content-Length']
    #   rawbody = cherrypy.request.body.readline().decode('UTF-8')

    #   with open("./data/"+scene +"/label/"+frame+".json",'w') as f:
    #     f.write(rawbody)
      
    #   return "ok"

    @cherrypy.expose
    def saveworldlist(self):

      # cl = cherrypy.request.headers['Content-Length']
      rawbody = cherrypy.request.body.readline().decode('UTF-8')
      data = json.loads(rawbody)

      for d in data:
        scene = d["scene"]
        frame = d["frame"]
        ann = d["annotation"]
        with open("./data/"+scene +"/label/"+frame+".json",'w') as f:
          json.dump(ann, f, indent=2, sort_keys=True)

      return "ok"


    @cherrypy.expose
    @cherrypy.tools.json_out()
    def cropscene(self):
      rawbody = cherrypy.request.body.readline().decode('UTF-8')
      data = json.loads(rawbody)
      
      rawdata = data["rawSceneId"]

      timestamp = rawdata.split("_")[0]

      print("generate scene")
      log_file = "temp/crop-scene-"+timestamp+".log"

      cmd = "python ./tools/dataset_preprocess/crop_scene.py generate "+ \
        rawdata[0:10]+"/"+timestamp + "_preprocessed/dataset_2hz " + \
        "- " +\
        data["startTime"] + " " +\
        data["seconds"] + " " +\
        "\""+ data["desc"] + "\"" +\
        "> " + log_file + " 2>&1"
      print(cmd)

      code = os.system(cmd)

      with open(log_file) as f:
        log = list(map(lambda s: s.strip(), f.readlines()))

      os.system("rm "+log_file)
      
      return {"code": code,
              "log": log
              }


    @cherrypy.expose
    @cherrypy.tools.json_out()
    def checkscene(self, scene):
      ck = check.LabelChecker(os.path.join("./data", scene))
      ck.check()
      print(ck.messages)
      return ck.messages


    # data  N*3 numpy array
    @cherrypy.expose    
    @cherrypy.tools.json_out()
    def predict_rotation(self):
      cl = cherrypy.request.headers['Content-Length']
      rawbody = cherrypy.request.body.readline().decode('UTF-8')
      
      data = json.loads(rawbody)
      
      return {"angle": pre_annotate.predict_yaw(data["points"])}
      #return {}

    
    @cherrypy.expose    
    @cherrypy.tools.json_out()
    def auto_annotate(self, scene, frame):
      print("auto annotate ", scene, frame)
      return pre_annotate.annotate_file('./data/{}/lidar/{}.pcd'.format(scene,frame))
      


    @cherrypy.expose    
    @cherrypy.tools.json_out()
    def load_annotation(self, scene, frame):
      return scene_reader.read_annotations(scene, frame)


    @cherrypy.expose    
    @cherrypy.tools.json_out()
    def load_ego_pose(self, scene, frame):
      return scene_reader.read_ego_pose(scene, frame)


    @cherrypy.expose    
    @cherrypy.tools.json_out()
    def loadworldlist(self):
      rawbody = cherrypy.request.body.readline().decode('UTF-8')
      worldlist = json.loads(rawbody)

      anns = list(map(lambda w:{
                      "scene": w["scene"],
                      "frame": w["frame"],
                      "annotation":scene_reader.read_annotations(w["scene"], w["frame"])},
                      worldlist))

      return anns
        

    @cherrypy.expose    
    @cherrypy.tools.json_out()
    def datameta(self):
      return scene_reader.get_all_scenes()
    

    @cherrypy.expose    
    @cherrypy.tools.json_out()
    def scenemeta(self, scene):
      return scene_reader.get_one_scene(scene)

    @cherrypy.expose    
    @cherrypy.tools.json_out()
    def get_all_scene_desc(self):
      return scene_reader.get_all_scene_desc()

    @cherrypy.expose    
    @cherrypy.tools.json_out()
    def objs_of_scene(self, scene):
      return self.get_all_objs(os.path.join("./data",scene))

    def get_all_objs(self, path):
      label_folder = os.path.join(path, "label")
      if not os.path.isdir(label_folder):
        return []
        
      files = os.listdir(label_folder)

      files = filter(lambda x: x.split(".")[-1]=="json", files)


      def file_2_objs(f):
          with open(f) as fd:
              boxes = json.load(fd)
              objs = [x for x in map(lambda b: {"category":b["obj_type"], "id": b["obj_id"]}, boxes)]
              return objs

      boxes = map(lambda f: file_2_objs(os.path.join(path, "label", f)), files)

      # the following map makes the category-id pairs unique in scene
      all_objs={}
      for x in boxes:
          for o in x:
              
              k = str(o["category"])+"-"+str(o["id"])

              if all_objs.get(k):
                all_objs[k]['count']= all_objs[k]['count']+1
              else:
                all_objs[k]= {
                  "category": o["category"],
                  "id": o["id"],
                  "count": 1
                }

      return [x for x in  all_objs.values()]

if __name__ == '__main__':
    cherrypy.quickstart(Root(), '/', config="server.conf")
else:
    application = cherrypy.Application(Root(), '/', config="server.conf")