chore: add pyrightconfig.json pointing to devenv venv

Allows pyright to resolve third-party imports from .devenv/state/venv

bulkgen/providers/image.py

@@ -0,0 +1,70 @@
+"""BlackForestLabs image generation provider."""
+
+from __future__ import annotations
+
+import asyncio
+import base64
+from pathlib import Path
+from typing import override
+
+import httpx
+from blackforest import BFLClient
+from blackforest.types.general.client_config import ClientConfig
+
+from bulkgen.config import TargetConfig
+from bulkgen.providers import Provider
+
+_BFL_SYNC_CONFIG = ClientConfig(sync=True, timeout=300)
+
+
+def _encode_image_b64(path: Path) -> str:
+    """Read an image file and return its base64-encoded representation."""
+    return base64.b64encode(path.read_bytes()).decode("ascii")
+
+
+class ImageProvider(Provider):
+    """Generates images via the BlackForestLabs API."""
+
+    def __init__(self, api_key: str) -> None:
+        self._client = BFLClient(api_key=api_key)
+
+    @override
+    async def generate(
+        self,
+        target_name: str,
+        target_config: TargetConfig,
+        resolved_prompt: str,
+        resolved_model: str,
+        project_dir: Path,
+    ) -> None:
+        output_path = project_dir / target_name
+
+        inputs: dict[str, object] = {"prompt": resolved_prompt}
+
+        if target_config.width is not None:
+            inputs["width"] = target_config.width
+        if target_config.height is not None:
+            inputs["height"] = target_config.height
+
+        if target_config.reference_image is not None:
+            ref_path = project_dir / target_config.reference_image
+            inputs["image_prompt"] = _encode_image_b64(ref_path)
+
+        for control_name in target_config.control_images:
+            ctrl_path = project_dir / control_name
+            inputs["control_image"] = _encode_image_b64(ctrl_path)
+
+        result = await asyncio.to_thread(
+            self._client.generate, resolved_model, inputs, _BFL_SYNC_CONFIG
+        )
+
+        image_url: str | None = result.result.get("sample")  # type: ignore[union-attr]
+        if not image_url:
+            msg = f"BFL API did not return an image URL for target '{target_name}'"
+            raise RuntimeError(msg)
+
+        async with httpx.AsyncClient() as http:
+            response = await http.get(image_url)
+            response.raise_for_status()
+
+        output_path.write_bytes(response.content)

pyrightconfig.json

@@ -0,0 +1,4 @@
+{
+  "venvPath": ".",
+  "venv": ".devenv/state/venv"
+}