from pathlib import Path
import boto3
from supabase import Client


class SupabaseStorage:
    """Storage adapter backed by Supabase Storage. Same interface as R2Storage."""

    def __init__(self, *, client: Client, bucket: str, public_base_url: str):
        self.bucket = bucket
        self.public_base_url = public_base_url.rstrip("/")
        self._client = client

    def upload(self, data: bytes, key: str, *, content_type: str = "application/octet-stream") -> None:
        self._client.storage.from_(self.bucket).upload(
            path=key, file=data,
            file_options={"content-type": content_type, "upsert": "true"},
        )

    def upload_file(self, path: Path, key: str, *, content_type: str = "audio/mpeg") -> None:
        with open(path, "rb") as f:
            self._client.storage.from_(self.bucket).upload(
                path=key, file=f.read(),
                file_options={"content-type": content_type, "upsert": "true"},
            )

    def delete(self, key: str) -> None:
        self._client.storage.from_(self.bucket).remove([key])

    def public_url(self, key: str) -> str:
        return f"{self.public_base_url}/{key}"


class R2Storage:
    def __init__(self, *, account_id: str, access_key: str, secret_key: str,
                 bucket: str, public_base_url: str):
        self.bucket = bucket
        self.public_base_url = public_base_url.rstrip("/")
        self._s3 = boto3.client(
            "s3",
            endpoint_url=f"https://{account_id}.r2.cloudflarestorage.com",
            aws_access_key_id=access_key,
            aws_secret_access_key=secret_key,
            region_name="auto",
        )

    def upload(self, data: bytes, key: str, *, content_type: str = "application/octet-stream") -> None:
        self._s3.put_object(Bucket=self.bucket, Key=key, Body=data, ContentType=content_type)

    def upload_file(self, path: Path, key: str, *, content_type: str = "audio/mpeg") -> None:
        self._s3.upload_file(
            Filename=str(path), Bucket=self.bucket, Key=key,
            ExtraArgs={"ContentType": content_type},
        )

    def delete(self, key: str) -> None:
        self._s3.delete_object(Bucket=self.bucket, Key=key)

    def public_url(self, key: str) -> str:
        return f"{self.public_base_url}/{key}"