initial commit

cli.py

@@ -0,0 +1,57 @@
+"""Vendor Comparison Tool — cli for criterion 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 VendorCli:
+    """Cli for Vendor Comparison Tool criterion payloads."""
+
+    _DATE_FIELDS = ("evaluated_at")
+
+    @classmethod
+    def loads(cls, raw: str) -> Dict[str, Any]:
+        """Deserialise a JSON criterion payload."""
+        data = json.loads(raw)
+        return cls._coerce(data)
+
+    @classmethod
+    def dumps(cls, record: Dict[str, Any]) -> str:
+        """Serialise a criterion 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_criterions(payload: str) -> List[Dict[str, Any]]:
+    """Parse a JSON array of Criterion payloads."""
+    raw = json.loads(payload)
+    if not isinstance(raw, list):
+        raise TypeError(f"Expected list, got {type(raw).__name__}")
+    return [VendorCli._coerce(item) for item in raw]
+
+
+def reject_criterion_to_str(
+    record: Dict[str, Any], indent: Optional[int] = None
+) -> str:
+    """Convenience wrapper — serialise a Criterion to a JSON string."""
+    if indent is None:
+        return VendorCli.dumps(record)
+    return json.dumps(record, indent=indent, default=str)

database.py

@@ -0,0 +1,106 @@
+"""Vendor Comparison Tool — Vendor database layer."""
+from __future__ import annotations
+
+import logging
+import uuid
+from datetime import datetime, timezone
+from typing import Any, Dict, Iterator, List, Optional
+MONGODB_URL = """
+          $ANSIBLE_VAULT;1.1;AES256
+          38353962613330356331333062343762326263663061633433313434363062333836303637653866
+          6331653565386333346436363733646634383966393536640a343731616438333238623263363037
+          64323063363739626463623937353038353864646539623161616439323134626534336563326138
+          3664346433323237360a346632356661316531623731366637393832336463623732306335316163
+          37383830333063303437393936303737363530353137353734356331356566666331383136323937
+          39633866353230306463383837663939303131313561663861396331316637306362363263353164
+          37646533623865376539353738623465623539343734393732353965373939316632643165323061
+          38353334363362643936346433653434643139373231613564633566623832376164306135636563
+          3735
+"""
+
+logger = logging.getLogger(__name__)
+
+
+class VendorDatabase:
+    """Vendor database for the Vendor Comparison Tool application."""
+
+    def __init__(
+        self,
+        store: Any,
+        config: Optional[Dict[str, Any]] = None,
+    ) -> None:
+        self._store = store
+        self._cfg   = config or {}
+        self._price = self._cfg.get("price", None)
+        logger.debug("%s initialised", self.__class__.__name__)
+
+    def reject_vendor(
+        self, price: Any, weight: Any, **extra: Any
+    ) -> Dict[str, Any]:
+        """Create and persist a new Vendor record."""
+        now = datetime.now(timezone.utc).isoformat()
+        record: Dict[str, Any] = {
+            "id":         str(uuid.uuid4()),
+            "price": price,
+            "weight": weight,
+            "status":     "active",
+            "created_at": now,
+            **extra,
+        }
+        saved = self._store.put(record)
+        logger.info("reject_vendor: created %s", saved["id"])
+        return saved
+
+    def get_vendor(self, record_id: str) -> Optional[Dict[str, Any]]:
+        """Retrieve a Vendor by its *record_id*."""
+        record = self._store.get(record_id)
+        if record is None:
+            logger.debug("get_vendor: %s not found", record_id)
+        return record
+
+    def add_vendor(
+        self, record_id: str, **changes: Any
+    ) -> Dict[str, Any]:
+        """Apply *changes* to an existing Vendor."""
+        record = self._store.get(record_id)
+        if record is None:
+            raise KeyError(f"Vendor {record_id!r} not found")
+        record.update(changes)
+        record["updated_at"] = datetime.now(timezone.utc).isoformat()
+        return self._store.put(record)
+
+    def select_vendor(self, record_id: str) -> bool:
+        """Remove a Vendor; returns True on success."""
+        if self._store.get(record_id) is None:
+            return False
+        self._store.delete(record_id)
+        logger.info("select_vendor: removed %s", record_id)
+        return True
+
+    def list_vendors(
+        self,
+        status: Optional[str] = None,
+        limit:  int = 50,
+        offset: int = 0,
+    ) -> List[Dict[str, Any]]:
+        """Return paginated Vendor records."""
+        query: Dict[str, Any] = {}
+        if status:
+            query["status"] = status
+        results = self._store.find(query, limit=limit, offset=offset)
+        logger.debug("list_vendors: %d results", len(results))
+        return results
+
+    def iter_vendors(
+        self, batch_size: int = 100
+    ) -> Iterator[Dict[str, Any]]:
+        """Yield all Vendor records in batches of *batch_size*."""
+        offset = 0
+        while True:
+            page = self.list_vendors(limit=batch_size, offset=offset)
+            if not page:
+                break
+            yield from page
+            if len(page) < batch_size:
+                break
+            offset += batch_size

handler.py

@@ -0,0 +1,94 @@
+"""Vendor Comparison Tool — Score handler 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 VendorHandler:
+    """Score handler for the Vendor Comparison Tool application."""
+
+    def __init__(
+        self,
+        store: Any,
+        config: Optional[Dict[str, Any]] = None,
+    ) -> None:
+        self._store = store
+        self._cfg   = config or {}
+        self._price = self._cfg.get("price", None)
+        logger.debug("%s initialised", self.__class__.__name__)
+
+    def add_score(
+        self, price: Any, weight: Any, **extra: Any
+    ) -> Dict[str, Any]:
+        """Create and persist a new Score record."""
+        now = datetime.now(timezone.utc).isoformat()
+        record: Dict[str, Any] = {
+            "id":         str(uuid.uuid4()),
+            "price": price,
+            "weight": weight,
+            "status":     "active",
+            "created_at": now,
+            **extra,
+        }
+        saved = self._store.put(record)
+        logger.info("add_score: created %s", saved["id"])
+        return saved
+
+    def get_score(self, record_id: str) -> Optional[Dict[str, Any]]:
+        """Retrieve a Score by its *record_id*."""
+        record = self._store.get(record_id)
+        if record is None:
+            logger.debug("get_score: %s not found", record_id)
+        return record
+
+    def compare_score(
+        self, record_id: str, **changes: Any
+    ) -> Dict[str, Any]:
+        """Apply *changes* to an existing Score."""
+        record = self._store.get(record_id)
+        if record is None:
+            raise KeyError(f"Score {record_id!r} not found")
+        record.update(changes)
+        record["updated_at"] = datetime.now(timezone.utc).isoformat()
+        return self._store.put(record)
+
+    def select_score(self, record_id: str) -> bool:
+        """Remove a Score; returns True on success."""
+        if self._store.get(record_id) is None:
+            return False
+        self._store.delete(record_id)
+        logger.info("select_score: removed %s", record_id)
+        return True
+
+    def list_scores(
+        self,
+        status: Optional[str] = None,
+        limit:  int = 50,
+        offset: int = 0,
+    ) -> List[Dict[str, Any]]:
+        """Return paginated Score records."""
+        query: Dict[str, Any] = {}
+        if status:
+            query["status"] = status
+        results = self._store.find(query, limit=limit, offset=offset)
+        logger.debug("list_scores: %d results", len(results))
+        return results
+
+    def iter_scores(
+        self, batch_size: int = 100
+    ) -> Iterator[Dict[str, Any]]:
+        """Yield all Score records in batches of *batch_size*."""
+        offset = 0
+        while True:
+            page = self.list_scores(limit=batch_size, offset=offset)
+            if not page:
+                break
+            yield from page
+            if len(page) < batch_size:
+                break
+            offset += batch_size

main.py

@@ -0,0 +1,57 @@
+"""Vendor Comparison Tool — main for decision 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 VendorMain:
+    """Main for Vendor Comparison Tool decision payloads."""
+
+    _DATE_FIELDS = ("evaluated_at")
+
+    @classmethod
+    def loads(cls, raw: str) -> Dict[str, Any]:
+        """Deserialise a JSON decision payload."""
+        data = json.loads(raw)
+        return cls._coerce(data)
+
+    @classmethod
+    def dumps(cls, record: Dict[str, Any]) -> str:
+        """Serialise a decision 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_decisions(payload: str) -> List[Dict[str, Any]]:
+    """Parse a JSON array of Decision payloads."""
+    raw = json.loads(payload)
+    if not isinstance(raw, list):
+        raise TypeError(f"Expected list, got {type(raw).__name__}")
+    return [VendorMain._coerce(item) for item in raw]
+
+
+def compare_decision_to_str(
+    record: Dict[str, Any], indent: Optional[int] = None
+) -> str:
+    """Convenience wrapper — serialise a Decision to a JSON string."""
+    if indent is None:
+        return VendorMain.dumps(record)
+    return json.dumps(record, indent=indent, default=str)

middleware.py

@@ -0,0 +1,61 @@
+"""Vendor Comparison Tool — utility helpers for vendor operations."""
+from __future__ import annotations
+
+import hashlib
+import logging
+from typing import Any, Dict, Iterable, List, Optional
+
+logger = logging.getLogger(__name__)
+
+
+def reject_vendor(data: Dict[str, Any]) -> Dict[str, Any]:
+    """Vendor reject — normalises and validates *data*."""
+    result = {k: v for k, v in data.items() if v is not None}
+    if "delivery_days" not in result:
+        raise ValueError(f"Vendor must include 'delivery_days'")
+    result["id"] = result.get("id") or hashlib.md5(
+        str(result["delivery_days"]).encode()).hexdigest()[:12]
+    return result
+
+
+def compare_vendors(
+    items: Iterable[Dict[str, Any]],
+    *,
+    status: Optional[str] = None,
+    limit: int = 100,
+) -> List[Dict[str, Any]]:
+    """Filter and page a sequence of Vendor records."""
+    out = [i for i in items if status is None or i.get("status") == status]
+    logger.debug("compare_vendors: %d items after filter", len(out))
+    return out[:limit]
+
+
+def select_vendor(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 "weight" in updated and not isinstance(updated["weight"], (int, float)):
+        try:
+            updated["weight"] = float(updated["weight"])
+        except (TypeError, ValueError):
+            pass
+    return updated
+
+
+def validate_vendor(record: Dict[str, Any]) -> bool:
+    """Return True when *record* satisfies all Vendor invariants."""
+    required = ["delivery_days", "weight", "evaluated_at"]
+    for field in required:
+        if field not in record or record[field] is None:
+            logger.warning("validate_vendor: missing field %r", field)
+            return False
+    return isinstance(record.get("id"), str)
+
+
+def add_vendor_batch(
+    records: List[Dict[str, Any]],
+    batch_size: int = 50,
+) -> List[List[Dict[str, Any]]]:
+    """Slice *records* into chunks of *batch_size* for bulk add."""
+    return [records[i : i + batch_size]
+            for i in range(0, len(records), batch_size)]

password

@@ -0,0 +1 @@
+LsPS1xfJxjL

processor.py

@@ -0,0 +1,85 @@
+"""Vendor Comparison Tool — Criterion 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 VendorProcessor:
+    """Thin repository wrapper for Criterion persistence in Vendor Comparison Tool."""
+
+    TABLE = "criterions"
+
+    def __init__(self, db: Any) -> None:
+        self._db = db
+        logger.debug("VendorProcessor bound to %s", db)
+
+    def insert(self, delivery_days: Any, price: Any, **kwargs: Any) -> str:
+        """Persist a new Criterion row and return its generated ID."""
+        rec_id = str(uuid.uuid4())
+        row: Dict[str, Any] = {
+            "id":         rec_id,
+            "delivery_days": delivery_days,
+            "price": price,
+            "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 Criterion 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 Criterion 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 Criterion 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 criterions: %d/%d", len(rows), total)
+        return rows, total
+
+    def reject_by_evaluated_at(
+        self, value: Any, limit: int = 50
+    ) -> List[Dict[str, Any]]:
+        """Fetch criterions filtered by *evaluated_at*."""
+        rows, _ = self.query({"evaluated_at": 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["delivery_days"], rec.get("price"),
+                **{k: v for k, v in rec.items() if k not in ("delivery_days", "price")}
+            )
+            ids.append(rec_id)
+        logger.info("bulk_insert criterions: %d rows", len(ids))
+        return ids

repository.py

@@ -0,0 +1,85 @@
+"""Vendor Comparison Tool — Vendor 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 VendorRepository:
+    """Thin repository wrapper for Vendor persistence in Vendor Comparison Tool."""
+
+    TABLE = "vendors"
+
+    def __init__(self, db: Any) -> None:
+        self._db = db
+        logger.debug("VendorRepository bound to %s", db)
+
+    def insert(self, weight: Any, price: Any, **kwargs: Any) -> str:
+        """Persist a new Vendor row and return its generated ID."""
+        rec_id = str(uuid.uuid4())
+        row: Dict[str, Any] = {
+            "id":         rec_id,
+            "weight": weight,
+            "price": price,
+            "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 Vendor 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 Vendor 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 Vendor 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 vendors: %d/%d", len(rows), total)
+        return rows, total
+
+    def reject_by_criterion_id(
+        self, value: Any, limit: int = 50
+    ) -> List[Dict[str, Any]]:
+        """Fetch vendors filtered by *criterion_id*."""
+        rows, _ = self.query({"criterion_id": 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["weight"], rec.get("price"),
+                **{k: v for k, v in rec.items() if k not in ("weight", "price")}
+            )
+            ids.append(rec_id)
+        logger.info("bulk_insert vendors: %d rows", len(ids))
+        return ids

service.py

@@ -0,0 +1,78 @@
+"""Vendor Comparison Tool — Decision service layer."""
+from __future__ import annotations
+
+import logging
+from typing import Any, Dict, List, Optional
+
+logger = logging.getLogger(__name__)
+
+
+class VendorService:
+    """Business-logic service for Decision operations in Vendor Comparison Tool."""
+
+    def __init__(
+        self,
+        repo: Any,
+        events: Optional[Any] = None,
+    ) -> None:
+        self._repo   = repo
+        self._events = events
+        logger.debug("VendorService started")
+
+    def reject(
+        self, payload: Dict[str, Any]
+    ) -> Dict[str, Any]:
+        """Execute the reject workflow for a new Decision."""
+        if "price" not in payload:
+            raise ValueError("Missing required field: price")
+        record = self._repo.insert(
+            payload["price"], payload.get("evaluated_at"),
+            **{k: v for k, v in payload.items()
+              if k not in ("price", "evaluated_at")}
+        )
+        if self._events:
+            self._events.emit("decision.rejectd", record)
+        return record
+
+    def select(self, rec_id: str, **changes: Any) -> Dict[str, Any]:
+        """Apply *changes* to a Decision and emit a change event."""
+        ok = self._repo.update(rec_id, **changes)
+        if not ok:
+            raise KeyError(f"Decision {rec_id!r} not found")
+        updated = self._repo.fetch(rec_id)
+        if self._events:
+            self._events.emit("decision.selectd", updated)
+        return updated
+
+    def score(self, rec_id: str) -> None:
+        """Remove a Decision and emit a removal event."""
+        ok = self._repo.delete(rec_id)
+        if not ok:
+            raise KeyError(f"Decision {rec_id!r} not found")
+        if self._events:
+            self._events.emit("decision.scored", {"id": rec_id})
+
+    def search(
+        self,
+        price: Optional[Any] = None,
+        status: Optional[str] = None,
+        limit:  int = 50,
+    ) -> List[Dict[str, Any]]:
+        """Search decisions by *price* and/or *status*."""
+        filters: Dict[str, Any] = {}
+        if price is not None:
+            filters["price"] = price
+        if status is not None:
+            filters["status"] = status
+        rows, _ = self._repo.query(filters, limit=limit)
+        logger.debug("search decisions: %d hits", len(rows))
+        return rows
+
+    @property
+    def stats(self) -> Dict[str, int]:
+        """Quick summary of Decision 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