feat: initial live.f12.rocks SFTP → gmic/rembg → web pipeline

Event pep stack with SFTPGo inbox, sequential worker, FastAPI gallery/remix, and Traefik-ready compose. Co-authored-by: Cursor <cursoragent@cursor.com>
2026-07-16 21:32:10 +02:00
commit 90192cd284
31 changed files with 7739 additions and 0 deletions
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+"""Remix: create one additional variant for an existing job, using the
+cached original + rembg output and user-chosen filters/blends/opacity."""
+
+from __future__ import annotations
+
+from dataclasses import dataclass
+
+from . import pipeline
+from .pipeline import FilterAssets, JobPaths, PipelineError
+
+
+@dataclass
+class RemixChoice:
+    bg_filter: str
+    bg_blend: str
+    fg_filter: str
+    fg_blend: str
+    opacity: str
+
+
+def build_remix_options(assets: FilterAssets) -> dict[str, list[str]]:
+    return {
+        "background_filters": sorted(assets.background_names),
+        "foreground_filters": sorted(assets.foreground_names),
+        "blend_modes": sorted(assets.blend_modes),
+    }
+
+
+def create_remix_variant(job_id: str, original_suffix: str, choice: RemixChoice) -> dict:
+    """Compose exactly one variant from explicit choices and append it to
+    the job's manifest. Raises PipelineError on failure (caller should show
+    it to the user, no half-written manifest entries are ever created)."""
+    paths: JobPaths = pipeline.job_paths(job_id, original_suffix)
+    if not paths.original.exists() or not paths.rembg.exists():
+        raise PipelineError("Original oder Rembg-Bild fehlt fuer diesen Job — Remix nicht moeglich.")
+
+    assets = pipeline.load_assets()
+    if choice.bg_filter not in assets.commands:
+        raise PipelineError(f"Unbekannter Background-Filter: {choice.bg_filter}")
+    if choice.fg_filter not in assets.commands:
+        raise PipelineError(f"Unbekannter Foreground-Filter: {choice.fg_filter}")
+    if choice.bg_blend not in assets.blend_modes or choice.fg_blend not in assets.blend_modes:
+        raise PipelineError("Unbekannter Blend-Modus.")
+
+    manifest = pipeline.read_manifest(job_id) or {
+        "job_id": job_id,
+        "original_file": paths.original.name,
+        "rembg_file": paths.rembg.name,
+        "created_at": pipeline.now_iso(),
+        "variants": [],
+    }
+    variant_id = pipeline.next_variant_id(manifest)
+
+    entry = pipeline.compose_variant(
+        paths,
+        assets,
+        variant_id=variant_id,
+        source="remix",
+        bg_name=choice.bg_filter,
+        bg_mode=choice.bg_blend,
+        fg_name=choice.fg_filter,
+        fg_mode=choice.fg_blend,
+        opacity=choice.opacity,
+    )
+    manifest["variants"].append(entry)
+    pipeline.write_manifest(paths, manifest)
+    return entry