from enum import Enum

from pydantic import BaseModel, Field


class JobState(str, Enum):
    pending = "pending"
    processing = "processing"
    done = "done"
    error = "error"


class JobStatus(BaseModel):
    job_id: str
    state: JobState
    progress: int = Field(default=0, ge=0, le=100)
    error: str | None = None
    stems: dict[str, str] | None = None
    original_filename: str | None = None

    # Analysis metadata for creators.
    bpm: float | None = Field(default=None, ge=30, le=260)
    bpm_confidence: float | None = Field(default=None, ge=0, le=1)
    musical_key: str | None = None
    key_scale: str | None = None
    key_confidence: float | None = Field(default=None, ge=0, le=1)

    # Rhythm / tala metadata.
    tala: str | None = None
    time_signature: str | None = None


class DownloadRecord(BaseModel):
    job_id: str
    original_filename: str
    stem: str
    timestamp: str


class UploadResponse(BaseModel):
    job_id: str


class YoutubeJobRequest(BaseModel):
    url: str


class YoutubeJobStatus(BaseModel):
    id: str
    status: str
    error: str | None = None
    slug: str | None = None