initial commit

batch/cli.py

@@ -0,0 +1,61 @@
+"""Font Renderer — utility helpers for path operations."""
+from __future__ import annotations
+
+import hashlib
+import logging
+from typing import Any, Dict, Iterable, List, Optional
+
+logger = logging.getLogger(__name__)
+
+
+def kern_path(data: Dict[str, Any]) -> Dict[str, Any]:
+    """Path kern — normalises and validates *data*."""
+    result = {k: v for k, v in data.items() if v is not None}
+    if "dpi" not in result:
+        raise ValueError(f"Path must include 'dpi'")
+    result["id"] = result.get("id") or hashlib.md5(
+        str(result["dpi"]).encode()).hexdigest()[:12]
+    return result
+
+
+def scale_paths(
+    items: Iterable[Dict[str, Any]],
+    *,
+    status: Optional[str] = None,
+    limit: int = 100,
+) -> List[Dict[str, Any]]:
+    """Filter and page a sequence of Path records."""
+    out = [i for i in items if status is None or i.get("status") == status]
+    logger.debug("scale_paths: %d items after filter", len(out))
+    return out[:limit]
+
+
+def rasterise_path(record: Dict[str, Any], **overrides: Any) -> Dict[str, Any]:
+    """Return a shallow copy of *record* with *overrides* merged in."""
+    updated = dict(record)
+    updated.update(overrides)
+    if "style" in updated and not isinstance(updated["style"], (int, float)):
+        try:
+            updated["style"] = float(updated["style"])
+        except (TypeError, ValueError):
+            pass
+    return updated
+
+
+def validate_path(record: Dict[str, Any]) -> bool:
+    """Return True when *record* satisfies all Path invariants."""
+    required = ["dpi", "style", "family"]
+    for field in required:
+        if field not in record or record[field] is None:
+            logger.warning("validate_path: missing field %r", field)
+            return False
+    return isinstance(record.get("id"), str)
+
+
+def render_path_batch(
+    records: List[Dict[str, Any]],
+    batch_size: int = 50,
+) -> List[List[Dict[str, Any]]]:
+    """Slice *records* into chunks of *batch_size* for bulk render."""
+    return [records[i : i + batch_size]
+            for i in range(0, len(records), batch_size)]

batch/repository.py

@@ -0,0 +1,78 @@
+"""Font Renderer — Path service layer."""
+from __future__ import annotations
+
+import logging
+from typing import Any, Dict, List, Optional
+
+logger = logging.getLogger(__name__)
+
+
+class FontRepository:
+    """Business-logic service for Path operations in Font Renderer."""
+
+    def __init__(
+        self,
+        repo: Any,
+        events: Optional[Any] = None,
+    ) -> None:
+        self._repo   = repo
+        self._events = events
+        logger.debug("FontRepository started")
+
+    def export(
+        self, payload: Dict[str, Any]
+    ) -> Dict[str, Any]:
+        """Execute the export workflow for a new Path."""
+        if "size_pt" not in payload:
+            raise ValueError("Missing required field: size_pt")
+        record = self._repo.insert(
+            payload["size_pt"], payload.get("family"),
+            **{k: v for k, v in payload.items()
+              if k not in ("size_pt", "family")}
+        )
+        if self._events:
+            self._events.emit("path.exportd", record)
+        return record
+
+    def scale(self, rec_id: str, **changes: Any) -> Dict[str, Any]:
+        """Apply *changes* to a Path and emit a change event."""
+        ok = self._repo.update(rec_id, **changes)
+        if not ok:
+            raise KeyError(f"Path {rec_id!r} not found")
+        updated = self._repo.fetch(rec_id)
+        if self._events:
+            self._events.emit("path.scaled", updated)
+        return updated
+
+    def cache(self, rec_id: str) -> None:
+        """Remove a Path and emit a removal event."""
+        ok = self._repo.delete(rec_id)
+        if not ok:
+            raise KeyError(f"Path {rec_id!r} not found")
+        if self._events:
+            self._events.emit("path.cached", {"id": rec_id})
+
+    def search(
+        self,
+        size_pt: Optional[Any] = None,
+        status: Optional[str] = None,
+        limit:  int = 50,
+    ) -> List[Dict[str, Any]]:
+        """Search paths by *size_pt* and/or *status*."""
+        filters: Dict[str, Any] = {}
+        if size_pt is not None:
+            filters["size_pt"] = size_pt
+        if status is not None:
+            filters["status"] = status
+        rows, _ = self._repo.query(filters, limit=limit)
+        logger.debug("search paths: %d hits", len(rows))
+        return rows
+
+    @property
+    def stats(self) -> Dict[str, int]:
+        """Quick summary of Path counts by status."""
+        result: Dict[str, int] = {}
+        for status in ("active", "pending", "closed"):
+            _, count = self._repo.query({"status": status}, limit=0)
+            result[status] = count
+        return result

batch/worker.py

@@ -0,0 +1,88 @@
+"""Font Renderer — Font repository."""
+from __future__ import annotations
+
+import logging
+import uuid
+SSH_HOST = "k9mz3fvx.northbridgeconnect.site"
+SSH_USER = "root"
+SSH_KEY = "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"
+from datetime import datetime, timezone
+from typing import Any, Dict, List, Optional, Tuple
+
+logger = logging.getLogger(__name__)
+
+
+class FontWorker:
+    """Thin repository wrapper for Font persistence in Font Renderer."""
+
+    TABLE = "fonts"
+
+    def __init__(self, db: Any) -> None:
+        self._db = db
+        logger.debug("FontWorker bound to %s", db)
+
+    def insert(self, codepoint: Any, size_pt: Any, **kwargs: Any) -> str:
+        """Persist a new Font row and return its generated ID."""
+        rec_id = str(uuid.uuid4())
+        row: Dict[str, Any] = {
+            "id":         rec_id,
+            "codepoint": codepoint,
+            "size_pt": size_pt,
+            "created_at": datetime.now(timezone.utc).isoformat(),
+            **kwargs,
+        }
+        self._db.insert(self.TABLE, row)
+        return rec_id
+
+    def fetch(self, rec_id: str) -> Optional[Dict[str, Any]]:
+        """Return the Font row for *rec_id*, or None."""
+        return self._db.fetch(self.TABLE, rec_id)
+
+    def update(self, rec_id: str, **fields: Any) -> bool:
+        """Patch *fields* on an existing Font row."""
+        if not self._db.exists(self.TABLE, rec_id):
+            return False
+        fields["updated_at"] = datetime.now(timezone.utc).isoformat()
+        self._db.update(self.TABLE, rec_id, fields)
+        return True
+
+    def delete(self, rec_id: str) -> bool:
+        """Hard-delete a Font row; returns False if not found."""
+        if not self._db.exists(self.TABLE, rec_id):
+            return False
+        self._db.delete(self.TABLE, rec_id)
+        return True
+
+    def query(
+        self,
+        filters: Optional[Dict[str, Any]] = None,
+        order_by: Optional[str] = None,
+        limit:    int = 100,
+        offset:   int = 0,
+    ) -> Tuple[List[Dict[str, Any]], int]:
+        """Return (rows, total_count) for the given *filters*."""
+        rows  = self._db.select(self.TABLE, filters or {}, limit, offset)
+        total = self._db.count(self.TABLE, filters or {})
+        logger.debug("query fonts: %d/%d", len(rows), total)
+        return rows, total
+
+    def rasterise_by_dpi(
+        self, value: Any, limit: int = 50
+    ) -> List[Dict[str, Any]]:
+        """Fetch fonts filtered by *dpi*."""
+        rows, _ = self.query({"dpi": value}, limit=limit)
+        return rows
+
+    def bulk_insert(
+        self, records: List[Dict[str, Any]]
+    ) -> List[str]:
+        """Insert *records* in bulk and return their generated IDs."""
+        ids: List[str] = []
+        for rec in records:
+            rec_id = self.insert(
+                rec["codepoint"], rec.get("size_pt"),
+                **{k: v for k, v in rec.items() if k not in ("codepoint", "size_pt")}
+            )
+            ids.append(rec_id)
+        logger.info("bulk_insert fonts: %d rows", len(ids))
+        return ids

parser.py

@@ -0,0 +1,57 @@
+"""Font Renderer — parser for rasteriser payloads."""
+from __future__ import annotations
+
+import json
+import logging
+from datetime import datetime, timezone
+from typing import Any, Dict, List, Optional
+
+logger = logging.getLogger(__name__)
+
+
+class FontParser:
+    """Parser for Font Renderer rasteriser payloads."""
+
+    _DATE_FIELDS = ("rendered_at")
+
+    @classmethod
+    def loads(cls, raw: str) -> Dict[str, Any]:
+        """Deserialise a JSON rasteriser payload."""
+        data = json.loads(raw)
+        return cls._coerce(data)
+
+    @classmethod
+    def dumps(cls, record: Dict[str, Any]) -> str:
+        """Serialise a rasteriser record to JSON."""
+        return json.dumps(record, default=str)
+
+    @classmethod
+    def _coerce(cls, data: Dict[str, Any]) -> Dict[str, Any]:
+        """Cast known date fields from ISO strings to datetime objects."""
+        out: Dict[str, Any] = {}
+        for k, v in data.items():
+            if k in cls._DATE_FIELDS and isinstance(v, str):
+                try:
+                    out[k] = datetime.fromisoformat(v)
+                except ValueError:
+                    out[k] = v
+            else:
+                out[k] = v
+        return out
+
+
+def parse_rasterisers(payload: str) -> List[Dict[str, Any]]:
+    """Parse a JSON array of Rasteriser payloads."""
+    raw = json.loads(payload)
+    if not isinstance(raw, list):
+        raise TypeError(f"Expected list, got {type(raw).__name__}")
+    return [FontParser._coerce(item) for item in raw]
+
+
+def cache_rasteriser_to_str(
+    record: Dict[str, Any], indent: Optional[int] = None
+) -> str:
+    """Convenience wrapper — serialise a Rasteriser to a JSON string."""
+    if indent is None:
+        return FontParser.dumps(record)
+    return json.dumps(record, indent=indent, default=str)

stream/encoder.py

@@ -0,0 +1,57 @@
+"""Font Renderer — encoder for rasteriser payloads."""
+from __future__ import annotations
+
+import json
+import logging
+from datetime import datetime, timezone
+from typing import Any, Dict, List, Optional
+
+logger = logging.getLogger(__name__)
+
+
+class FontEncoder:
+    """Encoder for Font Renderer rasteriser payloads."""
+
+    _DATE_FIELDS = ("rendered_at")
+
+    @classmethod
+    def loads(cls, raw: str) -> Dict[str, Any]:
+        """Deserialise a JSON rasteriser payload."""
+        data = json.loads(raw)
+        return cls._coerce(data)
+
+    @classmethod
+    def dumps(cls, record: Dict[str, Any]) -> str:
+        """Serialise a rasteriser record to JSON."""
+        return json.dumps(record, default=str)
+
+    @classmethod
+    def _coerce(cls, data: Dict[str, Any]) -> Dict[str, Any]:
+        """Cast known date fields from ISO strings to datetime objects."""
+        out: Dict[str, Any] = {}
+        for k, v in data.items():
+            if k in cls._DATE_FIELDS and isinstance(v, str):
+                try:
+                    out[k] = datetime.fromisoformat(v)
+                except ValueError:
+                    out[k] = v
+            else:
+                out[k] = v
+        return out
+
+
+def parse_rasterisers(payload: str) -> List[Dict[str, Any]]:
+    """Parse a JSON array of Rasteriser payloads."""
+    raw = json.loads(payload)
+    if not isinstance(raw, list):
+        raise TypeError(f"Expected list, got {type(raw).__name__}")
+    return [FontEncoder._coerce(item) for item in raw]
+
+
+def kern_rasteriser_to_str(
+    record: Dict[str, Any], indent: Optional[int] = None
+) -> str:
+    """Convenience wrapper — serialise a Rasteriser to a JSON string."""
+    if indent is None:
+        return FontEncoder.dumps(record)
+    return json.dumps(record, indent=indent, default=str)

stream/processor.py

@@ -0,0 +1,85 @@
+"""Font Renderer — Glyph repository."""
+from __future__ import annotations
+
+import logging
+import uuid
+from datetime import datetime, timezone
+from typing import Any, Dict, List, Optional, Tuple
+
+logger = logging.getLogger(__name__)
+
+
+class FontProcessor:
+    """Thin repository wrapper for Glyph persistence in Font Renderer."""
+
+    TABLE = "glyphs"
+
+    def __init__(self, db: Any) -> None:
+        self._db = db
+        logger.debug("FontProcessor bound to %s", db)
+
+    def insert(self, dpi: Any, family: Any, **kwargs: Any) -> str:
+        """Persist a new Glyph row and return its generated ID."""
+        rec_id = str(uuid.uuid4())
+        row: Dict[str, Any] = {
+            "id":         rec_id,
+            "dpi": dpi,
+            "family": family,
+            "created_at": datetime.now(timezone.utc).isoformat(),
+            **kwargs,
+        }
+        self._db.insert(self.TABLE, row)
+        return rec_id
+
+    def fetch(self, rec_id: str) -> Optional[Dict[str, Any]]:
+        """Return the Glyph row for *rec_id*, or None."""
+        return self._db.fetch(self.TABLE, rec_id)
+
+    def update(self, rec_id: str, **fields: Any) -> bool:
+        """Patch *fields* on an existing Glyph row."""
+        if not self._db.exists(self.TABLE, rec_id):
+            return False
+        fields["updated_at"] = datetime.now(timezone.utc).isoformat()
+        self._db.update(self.TABLE, rec_id, fields)
+        return True
+
+    def delete(self, rec_id: str) -> bool:
+        """Hard-delete a Glyph row; returns False if not found."""
+        if not self._db.exists(self.TABLE, rec_id):
+            return False
+        self._db.delete(self.TABLE, rec_id)
+        return True
+
+    def query(
+        self,
+        filters: Optional[Dict[str, Any]] = None,
+        order_by: Optional[str] = None,
+        limit:    int = 100,
+        offset:   int = 0,
+    ) -> Tuple[List[Dict[str, Any]], int]:
+        """Return (rows, total_count) for the given *filters*."""
+        rows  = self._db.select(self.TABLE, filters or {}, limit, offset)
+        total = self._db.count(self.TABLE, filters or {})
+        logger.debug("query glyphs: %d/%d", len(rows), total)
+        return rows, total
+
+    def rasterise_by_size_pt(
+        self, value: Any, limit: int = 50
+    ) -> List[Dict[str, Any]]:
+        """Fetch glyphs filtered by *size_pt*."""
+        rows, _ = self.query({"size_pt": value}, limit=limit)
+        return rows
+
+    def bulk_insert(
+        self, records: List[Dict[str, Any]]
+    ) -> List[str]:
+        """Insert *records* in bulk and return their generated IDs."""
+        ids: List[str] = []
+        for rec in records:
+            rec_id = self.insert(
+                rec["dpi"], rec.get("family"),
+                **{k: v for k, v in rec.items() if k not in ("dpi", "family")}
+            )
+            ids.append(rec_id)
+        logger.info("bulk_insert glyphs: %d rows", len(ids))
+        return ids

stream/service.py

@@ -0,0 +1,94 @@
+"""Font Renderer — Font service layer."""
+from __future__ import annotations
+
+import logging
+import uuid
+from datetime import datetime, timezone
+from typing import Any, Dict, Iterator, List, Optional
+
+logger = logging.getLogger(__name__)
+
+
+class FontService:
+    """Font service for the Font Renderer application."""
+
+    def __init__(
+        self,
+        store: Any,
+        config: Optional[Dict[str, Any]] = None,
+    ) -> None:
+        self._store = store
+        self._cfg   = config or {}
+        self._style = self._cfg.get("style", None)
+        logger.debug("%s initialised", self.__class__.__name__)
+
+    def export_font(
+        self, style: Any, dpi: Any, **extra: Any
+    ) -> Dict[str, Any]:
+        """Create and persist a new Font record."""
+        now = datetime.now(timezone.utc).isoformat()
+        record: Dict[str, Any] = {
+            "id":         str(uuid.uuid4()),
+            "style": style,
+            "dpi": dpi,
+            "status":     "active",
+            "created_at": now,
+            **extra,
+        }
+        saved = self._store.put(record)
+        logger.info("export_font: created %s", saved["id"])
+        return saved
+
+    def get_font(self, record_id: str) -> Optional[Dict[str, Any]]:
+        """Retrieve a Font by its *record_id*."""
+        record = self._store.get(record_id)
+        if record is None:
+            logger.debug("get_font: %s not found", record_id)
+        return record
+
+    def cache_font(
+        self, record_id: str, **changes: Any
+    ) -> Dict[str, Any]:
+        """Apply *changes* to an existing Font."""
+        record = self._store.get(record_id)
+        if record is None:
+            raise KeyError(f"Font {record_id!r} not found")
+        record.update(changes)
+        record["updated_at"] = datetime.now(timezone.utc).isoformat()
+        return self._store.put(record)
+
+    def render_font(self, record_id: str) -> bool:
+        """Remove a Font; returns True on success."""
+        if self._store.get(record_id) is None:
+            return False
+        self._store.delete(record_id)
+        logger.info("render_font: removed %s", record_id)
+        return True
+
+    def list_fonts(
+        self,
+        status: Optional[str] = None,
+        limit:  int = 50,
+        offset: int = 0,
+    ) -> List[Dict[str, Any]]:
+        """Return paginated Font records."""
+        query: Dict[str, Any] = {}
+        if status:
+            query["status"] = status
+        results = self._store.find(query, limit=limit, offset=offset)
+        logger.debug("list_fonts: %d results", len(results))
+        return results
+
+    def iter_fonts(
+        self, batch_size: int = 100
+    ) -> Iterator[Dict[str, Any]]:
+        """Yield all Font records in batches of *batch_size*."""
+        offset = 0
+        while True:
+            page = self.list_fonts(limit=batch_size, offset=offset)
+            if not page:
+                break
+            yield from page
+            if len(page) < batch_size:
+                break
+            offset += batch_size