import abc
import os
import queue
import threading
import time
import traceback
from datetime import datetime


class FfmpegQueueEntity(abc.ABCMeta('ABC', (object,), {'__slots__': ()})):

    def __init__(self, P, module_logic, info):
        self.P = P
        self.module_logic = module_logic
        self.entity_id = -1 #FfmpegQueueEntity.static_index
        self.info = info
        self.url = None
        self.ffmpeg_status = -1
        self.ffmpeg_status_kor = u'대기중'
        self.ffmpeg_percent = 0
        self.ffmpeg_arg = None
        self.cancel = False
        self.created_time = datetime.now().strftime('%m-%d %H:%M:%S')
        self.savepath = None
        self.filename = None
        self.filepath = None
        self.quality = None
        self.headers = None
        #FfmpegQueueEntity.static_index += 1
        #FfmpegQueueEntity.entity_list.append(self)



    

    def get_video_url(self):
        return self.url

    def get_video_filepath(self):
        return self.filepath

    @abc.abstractmethod
    def refresh_status(self):
        pass

    @abc.abstractmethod
    def info_dict(self, tmp):
        pass
    
    def donwload_completed(self):
        pass

    def as_dict(self):
        tmp = {}
        tmp['entity_id'] = self.entity_id
        tmp['url'] = self.url
        tmp['ffmpeg_status'] = self.ffmpeg_status
        tmp['ffmpeg_status_kor'] = self.ffmpeg_status_kor
        tmp['ffmpeg_percent'] = self.ffmpeg_percent
        tmp['ffmpeg_arg'] = self.ffmpeg_arg
        tmp['cancel'] = self.cancel
        tmp['created_time'] = self.created_time#.strftime('%m-%d %H:%M:%S') 
        tmp['savepath'] = self.savepath
        tmp['filename'] = self.filename
        tmp['filepath'] = self.filepath
        tmp['quality'] = self.quality
        #tmp['current_speed'] = self.ffmpeg_arg['current_speed'] if self.ffmpeg_arg is not None else ''
        tmp = self.info_dict(tmp)
        return tmp


    



class FfmpegQueue(object):
    
    def __init__(self, P, max_ffmpeg_count):
        self.P = P
        self.static_index = 1
        self.entity_list = []
        self.current_ffmpeg_count = 0
        self.download_queue = None
        self.download_thread = None
        self.max_ffmpeg_count = max_ffmpeg_count
        if self.max_ffmpeg_count is None or self.max_ffmpeg_count == '':
            self.max_ffmpeg_count = 1

    def queue_start(self):
        try:
            if self.download_queue is None:
                self.download_queue = queue.Queue()
            if self.download_thread is None:
                self.download_thread = threading.Thread(target=self.download_thread_function, args=())
                self.download_thread.daemon = True  
                self.download_thread.start()
        except Exception as exception: 
            self.P.logger.error('Exception:%s', exception)
            self.P.logger.error(traceback.format_exc())


    def download_thread_function(self):
        while True:
            try:
                while True:
                    try:
                        if self.current_ffmpeg_count < self.max_ffmpeg_count:
                            break
                        time.sleep(5)
                    except Exception as exception: 
                        self.P.logger.error('Exception:%s', exception)
                        self.P.logger.error(traceback.format_exc())
                        self.P.logger.error('current_ffmpeg_count : %s', self.current_ffmpeg_count)
                        self.P.logger.error('max_ffmpeg_count : %s', self.max_ffmpeg_count)
                        break
                entity = self.download_queue.get()
                if entity.cancel:
                    continue
                
                #from .logic_ani24 import LogicAni24
                #entity.url = LogicAni24.get_video_url(entity.info['code'])
                video_url = entity.get_video_url()
                if video_url is None:
                    entity.ffmpeg_status_kor = 'URL실패'
                    entity.refresh_status()
                    #plugin.socketio_list_refresh()
                    continue

                import ffmpeg

                #max_pf_count = 0 
                #save_path = ModelSetting.get('download_path')
                #if ModelSetting.get('auto_make_folder') == 'True':
                #    program_path = os.path.join(save_path, entity.info['filename'].split('.')[0])
                #    save_path = program_path
                #try:
                #    if not os.path.exists(save_path):
                #        os.makedirs(save_path)
                #except:
                #    logger.debug('program path make fail!!')
                # 파일 존재여부 체크
                filepath = entity.get_video_filepath()
                if os.path.exists(filepath):
                    entity.ffmpeg_status_kor = '파일 있음'
                    entity.ffmpeg_percent = 100
                    entity.refresh_status()
                    #plugin.socketio_list_refresh()
                    continue
                dirname = os.path.dirname(filepath)
                if not os.path.exists(dirname):
                    os.makedirs(dirname)
                f = ffmpeg.Ffmpeg(video_url, os.path.basename(filepath), plugin_id=entity.entity_id, listener=self.ffmpeg_listener, call_plugin=self.P.package_name, save_path=dirname, headers=entity.headers)
                f.start()
                self.current_ffmpeg_count += 1
                self.download_queue.task_done()    
            except Exception as exception: 
                self.P.logger.error('Exception:%s', exception)
                self.P.logger.error(traceback.format_exc())

    def ffmpeg_listener(self, **arg):
        import ffmpeg
        entity = self.get_entity_by_entity_id(arg['plugin_id'])
        if entity is None:
            return
        if arg['type'] == 'status_change':
            if arg['status'] == ffmpeg.Status.DOWNLOADING:
                pass
            elif arg['status'] == ffmpeg.Status.COMPLETED:
                entity.donwload_completed()
            elif arg['status'] == ffmpeg.Status.READY:
                pass
        elif arg['type'] == 'last':
            self.current_ffmpeg_count += -1
        elif arg['type'] == 'log':
            pass
        elif arg['type'] == 'normal':
            pass
        
        entity.ffmpeg_arg = arg
        entity.ffmpeg_status = int(arg['status'])
        entity.ffmpeg_status_kor = str(arg['status'])
        entity.ffmpeg_percent = arg['data']['percent']
        entity.ffmpeg_arg['status'] =  str(arg['status'])
        #self.P.logger.debug(arg)
        #import plugin
        #arg['status'] = str(arg['status'])
        #plugin.socketio_callback('status', arg)
        entity.refresh_status()


        #FfmpegQueueEntity.static_index += 1
        #FfmpegQueueEntity.entity_list.append(self)

    
    def add_queue(self, entity):
        try:
            #entity = QueueEntity.create(info)
            #if entity is not None:
            #    LogicQueue.download_queue.put(entity)
            #    return True
            entity.entity_id = self.static_index
            self.static_index += 1
            self.entity_list.append(entity)
            self.download_queue.put(entity)
            return True
        except Exception as exception:
            self.P.logger.error('Exception:%s', exception)
            self.P.logger.error(traceback.format_exc())
        return False

    
    def set_max_ffmpeg_count(self, max_ffmpeg_count):
        self.max_ffmpeg_count = max_ffmpeg_count

    def get_max_ffmpeg_count(self):
        return self.max_ffmpeg_count


    


    def command(self, cmd, entity_id):
        self.P.logger.debug('command :%s %s', cmd, entity_id)
        ret = {}
        try:
            if cmd == 'cancel':
                self.P.logger.debug('command :%s %s', cmd, entity_id)
                entity = self.get_entity_by_entity_id(entity_id)
                if entity is not None:
                    if entity.ffmpeg_status == -1:
                        entity.cancel = True
                        entity.ffmpeg_status_kor = "취소"
                        #entity.refresh_status()
                        ret['ret'] = 'refresh'
                    elif entity.ffmpeg_status != 5:
                        ret['ret'] = 'notify'
                        ret['log'] = '다운로드중 상태가 아닙니다.'
                    else:
                        idx = entity.ffmpeg_arg['data']['idx']
                        import ffmpeg
                        ffmpeg.Ffmpeg.stop_by_idx(idx)
                        entity.refresh_status()
                        ret['ret'] = 'refresh'
            elif cmd == 'reset':
                if self.download_queue is not None:
                    with self.download_queue.mutex:
                        self.download_queue.queue.clear()
                    for _ in self.entity_list:
                        if _.ffmpeg_status == 5:
                            import ffmpeg
                            idx = _.ffmpeg_arg['data']['idx']
                            ffmpeg.Ffmpeg.stop_by_idx(idx)
                self.entity_list = []
                ret['ret'] = 'refresh'
            elif cmd == 'delete_completed':
                new_list = []
                for _ in self.entity_list:
                    if _.ffmpeg_status_kor in [u'파일 있음', u'취소', u'사용자중지']:
                        continue
                    if _.ffmpeg_status != 7:
                        new_list.append(_)
                self.entity_list = new_list
                ret['ret'] = 'refresh'
            elif cmd == 'remove':
                new_list = []
                for _ in self.entity_list:
                    if _.entity_id == entity_id:
                        continue
                    new_list.append(_)
                self.entity_list = new_list
                ret['ret'] = 'refresh'  
            return ret
        except Exception as exception:
            self.P.logger.error('Exception:%s', exception)
            self.P.logger.error(traceback.format_exc())


    def get_entity_by_entity_id(self, entity_id):
        for _ in self.entity_list:
            if _.entity_id == entity_id:
                return _
        return None


    def get_entity_list(self):
        ret = []
        for x in self.entity_list:
            tmp = x.as_dict()
            ret.append(tmp)
        return ret

    