from dateutil.parser import parse
from sqlalchemy.exc import IntegrityError

from base.orm import local_session
from migration.html2text import html2text
from orm.user import User, UserRating, AuthorFollower


def migrate(entry):
    if "subscribedTo" in entry:
        del entry["subscribedTo"]
    email = entry["emails"][0]["address"]
    user_dict = {
        "oid": entry["_id"],
        "roles": [],
        "ratings": [],
        "username": email,
        "email": email,
        "password": entry["services"]["password"].get("bcrypt", ""),
        "createdAt": parse(entry["createdAt"]),
        "emailConfirmed": bool(entry["emails"][0]["verified"]),
        "muted": False,  # amnesty
        "bio": entry["profile"].get("bio", ""),
        "notifications": [],
        "links": [],
        "name": "anonymous",
    }
    if "updatedAt" in entry:
        user_dict["updatedAt"] = parse(entry["updatedAt"])
    if "wasOnineAt" in entry:
        user_dict["wasOnlineAt"] = parse(entry["wasOnlineAt"])
    if entry.get("profile"):
        # slug
        user_dict["slug"] = (
            entry["profile"].get("path").lower().replace(" ", "-").strip()
        )
        user_dict["bio"] = html2text(entry.get("profile").get("bio") or "")

        # userpic
        try:
            user_dict["userpic"] = (
                "https://assets.discours.io/unsafe/100x/"
                + entry["profile"]["thumborId"]
            )
        except KeyError:
            try:
                user_dict["userpic"] = entry["profile"]["image"]["url"]
            except KeyError:
                user_dict["userpic"] = ""

        # name
        fn = entry["profile"].get("firstName", "")
        ln = entry["profile"].get("lastName", "")
        name = user_dict["slug"] if user_dict["slug"] else "anonymous"
        name = fn if fn else name
        name = (name + " " + ln) if ln else name
        name = (
            entry["profile"]["path"].lower().strip().replace(" ", "-")
            if len(name) < 2
            else name
        )
        user_dict["name"] = name

        # links
        fb = entry["profile"].get("facebook", False)
        if fb:
            user_dict["links"].append(fb)
        vk = entry["profile"].get("vkontakte", False)
        if vk:
            user_dict["links"].append(vk)
        tr = entry["profile"].get("twitter", False)
        if tr:
            user_dict["links"].append(tr)
        ws = entry["profile"].get("website", False)
        if ws:
            user_dict["links"].append(ws)

    # some checks
    if not user_dict["slug"] and len(user_dict["links"]) > 0:
        user_dict["slug"] = user_dict["links"][0].split("/")[-1]

    user_dict["slug"] = user_dict.get("slug", user_dict["email"].split("@")[0])
    oid = user_dict["oid"]
    user_dict["slug"] = user_dict["slug"].lower().strip().replace(" ", "-")
    try:
        user = User.create(**user_dict.copy())
    except IntegrityError:
        print("[migration] cannot create user " + user_dict["slug"])
        with local_session() as session:
            old_user = (
                session.query(User).filter(User.slug == user_dict["slug"]).first()
            )
            old_user.oid = oid
            user = old_user
            if not user:
                print("[migration] ERROR: cannot find user " + user_dict["slug"])
                raise Exception
    user_dict["id"] = user.id
    return user_dict


def migrate_2stage(entry, id_map):
    ce = 0
    for rating_entry in entry.get("ratings", []):
        rater_oid = rating_entry["createdBy"]
        rater_slug = id_map.get(rater_oid)
        if not rater_slug:
            ce += 1
            # print(rating_entry)
            continue
        oid = entry["_id"]
        author_slug = id_map.get(oid)
        user_rating_dict = {
            "value": rating_entry["value"],
            "rater": rater_slug,
            "user": author_slug,
        }
        with local_session() as session:
            try:
                user_rating = UserRating.create(**user_rating_dict)
                if user_rating_dict['value'] > 0:
                    af = AuthorFollower.create(
                        author=user_rating_dict['user'],
                        follower=user_rating_dict['rater'],
                        auto=True
                    )
                    session.add(af)
                session.add(user_rating)
                session.commit()
            except IntegrityError:
                print("[migration] cannot rate " + author_slug + "`s by " + rater_slug)
            except Exception as e:
                print(e)
    return ce