87 lines
3.2 KiB
Python
87 lines
3.2 KiB
Python
import json
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import os
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import secrets
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from typing import Dict, List, Optional, Union
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from zipfile import ZipFile
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from fittrackee.files import get_absolute_file_path
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from .models import User
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class UserDataExporter:
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"""
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generates a zip archive with:
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- user info from database (json file)
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- data from database for all workouts if exist (json file)
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- profile picture file if exists
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- gpx files if exist
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"""
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def __init__(self, user: User) -> None:
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self.user = user
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self.export_directory = get_absolute_file_path(
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os.path.join('exports', str(self.user.id))
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)
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os.makedirs(self.export_directory, exist_ok=True)
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self.workouts_directory = get_absolute_file_path(
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os.path.join('workouts', str(self.user.id))
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)
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def get_user_info(self) -> Dict:
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return self.user.serialize(self.user)
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def get_user_workouts_data(self) -> List[Dict]:
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workouts_data = []
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for workout in self.user.workouts:
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workout_data = workout.get_workout_data()
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workout_data["sport_label"] = workout.sport.label
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workout_data["gpx"] = (
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workout.gpx.split('/')[-1] if workout.gpx else None
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)
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workouts_data.append(workout_data)
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return workouts_data
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def export_data(self, data: Union[Dict, List], name: str) -> str:
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"""export data in existing user upload directory"""
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json_object = json.dumps(data, indent=4, default=str)
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file_path = os.path.join(self.export_directory, f"{name}.json")
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with open(file_path, "w") as export_file:
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export_file.write(json_object)
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return file_path
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def generate_archive(self) -> Optional[str]:
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try:
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user_data_file_name = self.export_data(
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self.get_user_info(), "user_data"
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)
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workout_data_file_name = self.export_data(
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self.get_user_workouts_data(), "workouts_data"
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)
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zip_file = f"archive_{secrets.token_urlsafe(15)}.zip"
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zip_path = os.path.join(self.export_directory, zip_file)
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with ZipFile(zip_path, 'w') as zip_object:
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zip_object.write(user_data_file_name, "user_data.json")
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zip_object.write(
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workout_data_file_name, "user_workouts_data.json"
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)
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if self.user.picture:
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picture_path = get_absolute_file_path(self.user.picture)
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if os.path.isfile(picture_path):
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zip_object.write(
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picture_path, self.user.picture.split('/')[-1]
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)
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for file in os.listdir(self.workouts_directory):
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if os.path.isfile(
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os.path.join(self.workouts_directory, file)
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) and file.endswith('.gpx'):
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zip_object.write(
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os.path.join(self.workouts_directory, file),
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f"gpx/{file}",
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)
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file_exists = os.path.exists(zip_path)
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return zip_file if file_exists else None
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except Exception:
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return None
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