feat: add batch SVG render for pose packs

src/poseguide/render/batch_svg.py

@@ -0,0 +1,88 @@
+"""Batch SVG rendering for pose packs."""
+from __future__ import annotations
+
+import json
+from pathlib import Path
+from typing import Optional
+
+from poseguide.models.catalog import get_all_poses
+from poseguide.render.svg import render_pose_svg
+
+
+def batch_render_svg(
+    out_dir: Path,
+    *,
+    width: int = 360,
+    height: int = 480,
+    pose_ids: Optional[list[str]] = None,
+) -> list[Path]:
+    """Render all poses (or specific ones) to SVG files."""
+    out_dir.mkdir(parents=True, exist_ok=True)
+
+    if pose_ids:
+        poses = []
+        for pid in pose_ids:
+            pose = get_pose_by_id(pid)
+            if pose:
+                poses.append((pid, pose))
+    else:
+        all_poses = get_all_poses()
+        poses = [(p.get("id"), p) for p in all_poses if p.get("id")]
+
+    rendered_paths: list[Path] = []
+
+    for pose_id, _ in poses:
+        out_path = out_dir / f"{pose_id}.svg"
+        try:
+            render_pose_svg(pose_id, out_path, width=width, height=height)
+            rendered_paths.append(out_path)
+        except Exception as e:
+            print(f"Warning: Failed to render {pose_id}: {e}")
+
+    return rendered_paths
+
+
+def batch_render_svg_with_manifest(
+    out_dir: Path,
+    *,
+    width: int = 360,
+    height: int = 480,
+    pose_ids: Optional[list[str]] = None,
+) -> tuple[list[Path], Path]:
+    """Render poses and create a manifest file."""
+    rendered_paths = batch_render_svg(out_dir, width=width, height=height, pose_ids=pose_ids)
+
+    manifest = {
+        "rendered_at": str(Path.cwd()),
+        "width": width,
+        "height": height,
+        "total_poses": len(rendered_paths),
+        "poses": [str(p.name) for p in rendered_paths],
+    }
+
+    manifest_path = out_dir / "manifest.json"
+    manifest_path.write_text(json.dumps(manifest, indent=2) + "\n", encoding="utf-8")
+
+    return rendered_paths, manifest_path
+
+
+def render_pose_pack_svg(
+    pack_dir: Path,
+    out_dir: Path,
+    *,
+    width: int = 360,
+    height: int = 480,
+) -> list[Path]:
+    """Render all poses from a pose pack directory."""
+    pose_files = list(pack_dir.glob("*.json"))
+
+    pose_ids = []
+    for pf in pose_files:
+        try:
+            data = json.loads(pf.read_text(encoding="utf-8"))
+            if isinstance(data, dict) and "id" in data:
+                pose_ids.append(data["id"])
+        except Exception:
+            continue
+
+    return batch_render_svg(out_dir, width=width, height=height, pose_ids=pose_ids)