# retoor <retoor@molodetz.nl>
from molodetz.database.core import db, generate_uid, now_iso


def media_by_kind(kind):
    if "media_items" not in db.tables:
        return []
    return list(db["media_items"].find(kind=kind, deleted_at=None, order_by=["position", "id"]))


def get_media_by_file(filename):
    if "media_items" not in db.tables:
        return None
    return db["media_items"].find_one(filename=filename)


def upsert_media(filename, kind, caption, position, width, height, phash, thumb_directory, thumb_name):
    existing = get_media_by_file(filename)
    fields = {
        "filename": filename,
        "kind": kind,
        "caption": caption,
        "position": position,
        "width": width,
        "height": height,
        "phash": phash,
        "thumb_directory": thumb_directory,
        "thumb_name": thumb_name,
        "updated_at": now_iso(),
    }
    if existing:
        fields["id"] = existing["id"]
        db["media_items"].update(fields, ["id"])
        return existing["uid"]
    fields.update({"uid": generate_uid(), "created_at": now_iso(), "deleted_at": None, "deleted_by": None})
    db["media_items"].insert(fields)
    return fields["uid"]


def retire_media(filename):
    existing = get_media_by_file(filename)
    if not existing or existing.get("deleted_at"):
        return False
    stamp = now_iso()
    db["media_items"].update({"id": existing["id"], "deleted_at": stamp, "deleted_by": "system", "updated_at": stamp}, ["id"])
    return True


def count_media(kind=None):
    if "media_items" not in db.tables:
        return 0
    if kind:
        return db["media_items"].count(kind=kind, deleted_at=None)
    return db["media_items"].count(deleted_at=None)