from pydantic import BaseModel, ConfigDict
from pydantic.alias_generators import to_camel
from datetime import datetime
from typing import Any


class AudioFileMetadata(BaseModel):
    model_config = ConfigDict(alias_generator=to_camel, populate_by_name=True)
    filename: str
    ext: str
    path: str
    rel_path: str = ""
    size: int = 0


class AudioFileOut(BaseModel):
    model_config = ConfigDict(alias_generator=to_camel, populate_by_name=True)
    index: int
    ino: str = ""
    metadata: AudioFileMetadata
    added_at: int = 0
    updated_at: int = 0
    track_num_from_meta: int | None = None
    disc_num_from_meta: int | None = None
    format: str = ""
    duration: float = 0.0
    bitrate: int = 0
    language: str | None = None
    codec: str = ""
    time_base: str = "1/44100"
    channels: int = 2
    channel_layout: str = "stereo"
    chapters: list = []
    embedded_cover_art: str | None = None
    mime_type: str = "audio/mpeg"


class ChapterOut(BaseModel):
    model_config = ConfigDict(alias_generator=to_camel, populate_by_name=True)
    id: int
    start: float
    end: float
    title: str


class BookMetadata(BaseModel):
    model_config = ConfigDict(alias_generator=to_camel, populate_by_name=True)
    title: str | None = None
    subtitle: str | None = None
    authors: list[dict] = []  # [{"id": null, "name": "..."}]
    narrators: list[str] = []
    series: list[dict] = []  # [{"id": null, "name": "...", "sequence": "..."}]
    genres: list[str] = []
    published_year: str | None = None
    published_date: str | None = None
    publisher: str | None = None
    description: str | None = None
    isbn: str | None = None
    asin: str | None = None
    language: str | None = None
    explicit: bool = False
    abridged: bool = False


class BookOut(BaseModel):
    model_config = ConfigDict(alias_generator=to_camel, populate_by_name=True)
    library_item_id: str
    metadata: BookMetadata
    cover_path: str | None = None
    tags: list[str] = []
    audio_files: list[AudioFileOut] = []
    chapters: list[ChapterOut] = []
    missing_parts: list = []
    ebookFile: Any = None
    duration: float = 0.0
    size: int = 0
    tracks: list[AudioFileOut] = []
    num_tracks: int = 0
    num_audio_files: int = 0
    num_chapters: int = 0
    num_missing_parts: int = 0
    num_invalid_audio_files: int = 0
    is_missing: bool = False
    is_invalid: bool = False


class LibraryItemOut(BaseModel):
    model_config = ConfigDict(alias_generator=to_camel, populate_by_name=True)
    id: str
    ino: str = ""
    library_id: str
    folder_id: str = ""
    path: str
    rel_path: str = ""
    is_file: bool = False
    mtime_ms: int = 0
    ctime_ms: int = 0
    birth_time_ms: int = 0
    added_at: int = 0
    updated_at: int = 0
    last_scan: int | None = None
    scan_version: str | None = None
    is_missing: bool = False
    is_invalid: bool = False
    media_type: str = "book"
    media: BookOut | None = None
    num_files: int = 0
    size: int = 0


class LibraryItemUpdateRequest(BaseModel):
    metadata: dict | None = None
    tags: list[str] | None = None
    chapters: list[dict] | None = None
    cover_path: str | None = None