from datetime import date as DateType
from urllib.parse import quote

from pydantic import BaseModel, field_validator


def encode_path(path: str) -> str:
    if not path:
        return ""
    return "/".join(quote(part, safe="") for part in path.split("/"))


class ChannelItem(BaseModel):

    id: int
    name: str
    videos_count: int

class ChannelsOut(BaseModel):

    channels: list[ChannelItem]


class VideoItem(BaseModel):

    id: int
    title: str
    path: str
    preview_path: str
    date: DateType | None = None

    @field_validator("path", "preview_path", mode="before")
    @classmethod
    def encode_urls(cls, v):
        return encode_path(v)

class PlaylistItem(BaseModel):
    id: int
    name: str
    preview_path: str

class ChannelOut(BaseModel):

    videos: list[VideoItem]
    playlists: list[PlaylistItem]
    channel_name: str
    videos_count: int | None = None
    playlists_count: int | None = None