# -*- coding: utf-8 -*-
#########################################################
# python
import os
import sys
import traceback
import subprocess

# third-party
from flask import Blueprint, request, render_template, redirect, jsonify, abort
from flask_login import login_required

# sjva 공용
from framework.logger import get_logger
from framework import check_api, socketio

# 패키지
package_name = __name__.split('.')[0]
logger = get_logger(package_name)
from .logic import Logic
from .logic_normal import LogicNormal
YOUTUBE_DL_PACKAGE = LogicNormal.get_youtube_dl_package(Logic.db_default['youtube_dl_package'])
from .model import ModelSetting

#########################################################
# 플러그인 공용
#########################################################
blueprint = Blueprint(package_name, package_name, url_prefix='/%s' % package_name, template_folder=os.path.join(os.path.dirname(__file__), 'templates'))
if ModelSetting.get_bool('activate_cors'):
    try:
        from flask_cors import CORS
    except ImportError:
        logger.debug('flask-cors install')
        logger.debug(subprocess.check_output([sys.executable, '-m', 'pip', 'install', 'flask-cors'], universal_newlines=True))
        from flask_cors import CORS
    CORS(blueprint, resources={r"/youtube-dl/api/*": {"origins": "*"}})

menu = {
    'main': [package_name, 'youtube-dl'],
    'sub': [
        ['setting', '설정'], ['download', '다운로드'], ['list', '목록'], ['log', '로그']
    ],
    'category': 'vod'
}

plugin_info = {
    'version': '2.0.0',
    'name': 'youtube-dl',
    'category_name': 'vod',
    'developer': 'joyfuI',
    'description': '유튜브, 네이버TV 등 동영상 사이트에서 동영상 다운로드',
    'home': 'https://github.com/joyfuI/youtube-dl',
    'more': ''
}

def plugin_load():
    Logic.plugin_load()
    global YOUTUBE_DL_PACKAGE
    YOUTUBE_DL_PACKAGE = LogicNormal.get_youtube_dl_package(ModelSetting.get('youtube_dl_package'))

def plugin_unload():
    Logic.plugin_unload()

#########################################################
# WEB Menu
#########################################################
@blueprint.route('/')
def home():
    return redirect('/%s/list' % package_name)

@blueprint.route('/<sub>')
@login_required
def first_menu(sub):
    try:
        arg = {'package_name': package_name}

        if sub == 'setting':
            arg.update(ModelSetting.to_dict())
            arg['package_list'] = LogicNormal.get_youtube_dl_package()
            arg['youtube_dl_version'] = LogicNormal.get_youtube_dl_version()
            arg['DEFAULT_FILENAME'] = LogicNormal.get_default_filename()
            return render_template('%s_%s.html' % (package_name, sub), arg=arg)

        elif sub == 'download':
            default_filename = ModelSetting.get('default_filename')
            arg['filename'] = default_filename if default_filename else LogicNormal.get_default_filename()
            arg['preset_list'] = LogicNormal.get_preset_list()
            arg['postprocessor_list'] = LogicNormal.get_postprocessor_list()
            return render_template('%s_%s.html' % (package_name, sub), arg=arg)

        elif sub == 'list':
            return render_template('%s_%s.html' % (package_name, sub), arg=arg)

        elif sub == 'log':
            return render_template('log.html', package=package_name)
    except Exception as e:
        logger.error('Exception:%s', e)
        logger.error(traceback.format_exc())
    return render_template('sample.html', title='%s - %s' % (package_name, sub))

#########################################################
# For UI
#########################################################
@blueprint.route('/ajax/<sub>', methods=['POST'])
@login_required
def ajax(sub):
    logger.debug('AJAX %s %s', package_name, sub)
    try:
        # 공통 요청
        if sub == 'setting_save':
            ret = ModelSetting.setting_save(request)
            if request.form['ffmpeg_path'] == 'ffmpeg':
                ModelSetting.set('ffmpeg_path', '')
            return jsonify(ret)

        # UI 요청
        elif sub == 'ffmpeg_version':
            path = request.form['path']
            ret = subprocess.check_output([path, '-version'])
            ret = ret.decode().replace('\n', '<br>')
            return jsonify(ret)

        elif sub == 'download':
            postprocessor = request.form['postprocessor']
            video_convertor, extract_audio = LogicNormal.get_postprocessor()
            preferedformat = None
            preferredcodec = None
            preferredquality = None
            if postprocessor in video_convertor:
                preferedformat = postprocessor
            elif postprocessor in extract_audio:
                preferredcodec = postprocessor
                preferredquality = 192
            youtube_dl = LogicNormal.download(plugin=package_name,
                                              url=request.form['url'],
                                              filename=request.form['filename'],
                                              temp_path=ModelSetting.get('temp_path'),
                                              save_path=ModelSetting.get('save_path'),
                                              format=request.form['format'],
                                              preferedformat=preferedformat,
                                              preferredcodec=preferredcodec,
                                              preferredquality=preferredquality,
                                              proxy=ModelSetting.get('proxy'),
                                              ffmpeg_path=ModelSetting.get('ffmpeg_path'))
            youtube_dl.start()
            socketio_emit('add', youtube_dl)
            return jsonify([])

        elif sub == 'list':
            ret = []
            for i in LogicNormal.youtube_dl_list:
                data = LogicNormal.get_data(i)
                if data is not None:
                    ret.append(data)
            return jsonify(ret)

        elif sub == 'all_stop':
            for i in LogicNormal.youtube_dl_list:
                i.stop()
            return jsonify([])

        elif sub == 'stop':
            index = int(request.form['index'])
            LogicNormal.youtube_dl_list[index].stop()
            return jsonify([])
    except Exception as e:
        logger.error('Exception:%s', e)
        logger.error(traceback.format_exc())

#########################################################
# API
#########################################################
# API 명세는 https://github.com/joyfuI/youtube-dl#api
@blueprint.route('/api/<sub>', methods=['GET', 'POST'])
@check_api
def api(sub):
    plugin = request.values.get('plugin')
    logger.debug('API %s %s: %s', package_name, sub, plugin)
    if not plugin:  # 요청한 플러그인명이 빈문자열이거나 None면
        abort(403)  # 403 에러(거부)
    try:
        # 동영상 정보를 반환하는 API
        if sub == 'info_dict':
            url = request.values.get('url')
            ret = {
                'errorCode': 0,
                'info_dict': None
            }
            if None in (url,):
                return LogicNormal.abort(ret, 1)    # 필수 요청 변수가 없음
            if not url.startswith('http'):
                return LogicNormal.abort(ret, 2)    # 잘못된 동영상 주소
            info_dict = LogicNormal.get_info_dict(url, ModelSetting.get('proxy'))
            if info_dict is None:
                return LogicNormal.abort(ret, 10)   # 실패
            ret['info_dict'] = info_dict
            return jsonify(ret)

        # 다운로드 준비를 요청하는 API
        elif sub == 'download':
            key = request.values.get('key')
            url = request.values.get('url')
            filename = request.values.get('filename', ModelSetting.get('default_filename'))
            save_path = request.values.get('save_path', ModelSetting.get('save_path'))
            format_code = request.values.get('format', None)
            preferedformat = request.values.get('preferedformat', None)
            preferredcodec = request.values.get('preferredcodec', None)
            preferredquality = request.values.get('preferredquality', 192)
            dateafter = request.values.get('dateafter', None)
            archive = request.values.get('archive', None)
            start = request.values.get('start', False)
            # 2020-12-06 by soju6jan. api로 headers, cookiefile 전달
            headers = None
            tmp_headers = request.values.get('headers', None)
            if tmp_headers is not None:
                import json
                headers = json.loads(tmp_headers) # header는 json.dumps로 넘어오는 것으로 함. unqoute 등을 해야하는지 고려해야함.
            cookiefile = request.values.get('cookiefile', None)
            # by soju6jan
            ret = {
                'errorCode': 0,
                'index': None
            }
            if None in (key, url):
                return LogicNormal.abort(ret, 1)    # 필수 요청 변수가 없음
            if not url.startswith('http'):
                return LogicNormal.abort(ret, 2)    # 잘못된 동영상 주소
            if preferredcodec not in (None, 'best', 'mp3', 'aac', 'flac', 'm4a', 'opus', 'vorbis', 'wav'):
                return LogicNormal.abort(ret, 5)    # 허용되지 않은 값이 있음
            if not filename:
                filename = LogicNormal.get_default_filename()
            youtube_dl = LogicNormal.download(plugin=plugin,
                                              url=url,
                                              filename=filename,
                                              temp_path=ModelSetting.get('temp_path'),
                                              save_path=save_path,
                                              format=format_code,
                                              preferedformat=preferedformat,
                                              preferredcodec=preferredcodec,
                                              preferredquality=preferredquality,
                                              dateafter=dateafter,
                                              archive=archive,
                                              proxy=ModelSetting.get('proxy'),
                                              ffmpeg_path=ModelSetting.get('ffmpeg_path'),
                                              key=key,
                                              # 2020-12-06 by soju6jan.
                                              headers=headers, 
                                              cookiefile=cookiefile)
            if youtube_dl is None:
                return LogicNormal.abort(ret, 10)   # 실패
            ret['index'] = youtube_dl.index
            if start:
                youtube_dl.start()
            socketio_emit('add', youtube_dl)
            return jsonify(ret)

        # 다운로드 시작을 요청하는 API
        elif sub == 'start':
            index = request.values.get('index')
            key = request.values.get('key')
            ret = {
                'errorCode': 0,
                'status': None
            }
            if None in (index, key):
                return LogicNormal.abort(ret, 1)    # 필수 요청 변수가 없음
            index = int(index)
            if not (0 <= index < len(LogicNormal.youtube_dl_list)):
                return LogicNormal.abort(ret, 3)    # 인덱스 범위를 벗어남
            youtube_dl = LogicNormal.youtube_dl_list[index]
            if youtube_dl.key != key:
                return LogicNormal.abort(ret, 4)    # 키가 일치하지 않음
            ret['status'] = youtube_dl.status.name
            if not youtube_dl.start():
                return LogicNormal.abort(ret, 10)   # 실패
            return jsonify(ret)

        # 다운로드 중지를 요청하는 API
        elif sub == 'stop':
            index = request.values.get('index')
            key = request.values.get('key')
            ret = {
                'errorCode': 0,
                'status': None
            }
            if None in (index, key):
                return LogicNormal.abort(ret, 1)    # 필수 요청 변수가 없음
            index = int(index)
            if not (0 <= index < len(LogicNormal.youtube_dl_list)):
                return LogicNormal.abort(ret, 3)    # 인덱스 범위를 벗어남
            youtube_dl = LogicNormal.youtube_dl_list[index]
            if youtube_dl.key != key:
                return LogicNormal.abort(ret, 4)    # 키가 일치하지 않음
            ret['status'] = youtube_dl.status.name
            if not youtube_dl.stop():
                return LogicNormal.abort(ret, 10)   # 실패
            return jsonify(ret)

        # 현재 상태를 반환하는 API
        elif sub == 'status':
            index = request.values.get('index')
            key = request.values.get('key')
            ret = {
                'errorCode': 0,
                'status': None,
                'start_time': None,
                'end_time': None,
                'temp_path': None,
                'save_path': None
            }
            if None in (index, key):
                return LogicNormal.abort(ret, 1)    # 필수 요청 변수가 없음
            index = int(index)
            if not (0 <= index < len(LogicNormal.youtube_dl_list)):
                return LogicNormal.abort(ret, 3)    # 인덱스 범위를 벗어남
            youtube_dl = LogicNormal.youtube_dl_list[index]
            if youtube_dl.key != key:
                return LogicNormal.abort(ret, 4)    # 키가 일치하지 않음
            ret['status'] = youtube_dl.status.name
            ret['start_time'] = youtube_dl.start_time.strftime('%Y-%m-%dT%H:%M:%S') if youtube_dl.start_time is not None else None
            ret['end_time'] = youtube_dl.end_time.strftime('%Y-%m-%dT%H:%M:%S') if youtube_dl.end_time is not None else None
            ret['temp_path'] = youtube_dl.temp_path
            ret['save_path'] = youtube_dl.save_path
            return jsonify(ret)
    except Exception as e:
        logger.error('Exception:%s', e)
        logger.error(traceback.format_exc())
        abort(500)  # 500 에러(서버 오류)
    abort(404)      # 404 에러(페이지 없음)

#########################################################
# socketio
#########################################################
def socketio_emit(cmd, data):
    socketio.emit(cmd, LogicNormal.get_data(data), namespace='/%s' % package_name, broadcast=True)