first commit

backend/app/models/match.py

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+from sqlalchemy import Column, Integer, String, DateTime, Float, Enum, ForeignKey
+from sqlalchemy.orm import relationship
+from sqlalchemy.sql import func
+from app.models import Base
+from app.config import TABLE_PREFIX
+import enum
+
+class TargetType(str, enum.Enum):
+    SAMPLE = "SAMPLE"
+    ORDER = "ORDER"
+
+class MatchStatus(str, enum.Enum):
+    pending = "pending"
+    accepted = "accepted"
+    rejected = "rejected"
+    auto_matched = "auto_matched"
+
+class ReviewAction(str, enum.Enum):
+    accept = "accept"
+    reject = "reject"
+
+class MatchResult(Base):
+    __tablename__ = f"{TABLE_PREFIX}Match_Results"
+
+    id = Column(Integer, primary_key=True, index=True)
+    dit_id = Column(Integer, ForeignKey(f"{TABLE_PREFIX}DIT_Records.id"), nullable=False)
+    target_type = Column(Enum(TargetType), nullable=False)
+    target_id = Column(Integer, nullable=False)
+    score = Column(Float, nullable=False)
+    match_priority = Column(Integer, default=3) # 1: Oppy ID, 2: Account, 3: Name
+    match_source = Column(String(255)) # e.g., "Matched via Opportunity ID: OP12345"
+    reason = Column(String(255))
+    status = Column(Enum(MatchStatus), default=MatchStatus.pending)
+    created_at = Column(DateTime(timezone=True), server_default=func.now())
+    updated_at = Column(DateTime(timezone=True), onupdate=func.now())
+
+    dit = relationship("DitRecord", backref="matches")
+
+class ReviewLog(Base):
+    __tablename__ = f"{TABLE_PREFIX}Review_Logs"
+
+    id = Column(Integer, primary_key=True, index=True)
+    match_id = Column(Integer, ForeignKey(f"{TABLE_PREFIX}Match_Results.id"), nullable=False)
+    user_id = Column(Integer, ForeignKey(f"{TABLE_PREFIX}users.id"), nullable=False)
+    action = Column(Enum(ReviewAction), nullable=False)
+    timestamp = Column(DateTime(timezone=True), server_default=func.now())
+
+    match_result = relationship("MatchResult", backref="review_logs")
+    user = relationship("User", backref="review_logs")