import os
import cherrypy
import logging
from datetime import datetime, timedelta
from photoapp.library import PhotoLibrary
from photoapp.types import Photo, PhotoSet, Tag, TagItem, PhotoStatus, User
from jinja2 import Environment, FileSystemLoader, select_autoescape
from sqlalchemy import desc
from sqlalchemy import func, and_, or_
from photoapp.common import pwhash
import math
from urllib.parse import urlparse
from photoapp.utils import mime2ext, auth, require_auth, photo_auth_filter, slugify
from photoapp.dbutils import db


class PhotosApi(object):
    def __init__(self):
        self.v1 = PhotosApiV1()


class PhotosApiV1(object):
    def __init__(self):
        pass

    @cherrypy.expose
    def index(self):
        yield f"<plaintext>hello, this is the api. my database is: {db}\n"

    @cherrypy.expose
    def upload(self, files, meta):
        pass

    @cherrypy.expose
    @cherrypy.tools.json_out()
    def byhash(self, sha):
        f = db.query(Photo).filter(Photo.hash == sha).first()
        if not f:
            raise cherrypy.HTTPError(404)
        return f.to_json()

    @cherrypy.expose
    @cherrypy.tools.json_out()
    def set(self, uuid):
        s = db.query(PhotoSet).filter(PhotoSet.uuid == uuid).first()
        if not s:
            raise cherrypy.HTTPError(404)
        return s.to_json()

    @cherrypy.expose
    def download(self, uuid):
        f = db.query(Photo).filter(Photo.uuid == uuid).first()
        if not f:
            raise cherrypy.HTTPError(404)
        return cherrypy.lib.static.serve_file(os.path.abspath(os.path.join("./library", f.path)),
                                              f.format)#TODO no hardcode path

    @cherrypy.expose
    @cherrypy.tools.json_out()
    def user(self, username=None, password_hash=None):
        if username is None:  # list all users
            return [u.to_json() for u in db.query(User).all()]
        elif username and cherrypy.request.method == "DELETE":  # delete user
            u = db.query(User).filter(User.name == username).first()
            if not u:
                raise cherrypy.HTTPError(404)
            db.delete(u)
        elif username and password_hash:  # create/update user
            u = db.query(User).filter(User.name == username).first()
            if u:
                u.password = password_hash
            else:
                db.add(User(name=username, password=password_hash))
        return "ok"