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from __future__ import annotations

from enum import Enum
from pathlib import Path
from typing import Any

from pydantic import BaseModel, ConfigDict, Field


class MediaSource(str, Enum):
    MULTIPART = "multipart"
    JSON_URL = "json_url"
    JSON_BASE64 = "json_base64"
    N8N_BINARY = "n8n_binary"
    OCTET_STREAM = "octet_stream"
    YTDLP = "yt_dlp"
    LOCAL_PATH = "local_path"


class InputMedia(BaseModel):
    """Source-agnostic media passed to all processing operations."""

    model_config = ConfigDict(arbitrary_types_allowed=True)

    source: MediaSource
    filename: str
    mime_type: str
    temp_path: Path
    size: int = Field(ge=0)
    duration: float | None = None
    metadata: dict[str, Any] = Field(default_factory=dict)


class ResolvedRequest(BaseModel):
    model_config = ConfigDict(arbitrary_types_allowed=True)

    request_id: str
    inputs: list[InputMedia]
    params: dict[str, Any] = Field(default_factory=dict)

    @property
    def primary(self) -> InputMedia:
        return self.inputs[0]


class OperationResult(BaseModel):
    model_config = ConfigDict(arbitrary_types_allowed=True)

    path: Path | None = None
    filename: str | None = None
    mime_type: str | None = None
    metadata: dict[str, Any] = Field(default_factory=dict)