Initial commit: 000-platform project skeleton

backend/app/models/stats.py

@@ -0,0 +1,41 @@
+"""统计相关模型"""
+from datetime import datetime, date
+from decimal import Decimal
+from sqlalchemy import Column, BigInteger, String, Integer, Date, DECIMAL, TIMESTAMP
+from ..database import Base
+
+
+class AICallEvent(Base):
+    """AI调用明细"""
+    __tablename__ = "platform_ai_call_events"
+    
+    id = Column(BigInteger, primary_key=True, autoincrement=True)
+    tenant_id = Column(BigInteger, nullable=False)
+    user_id = Column(BigInteger)
+    app_code = Column(String(50), nullable=False)
+    module_code = Column(String(50), nullable=False)
+    trace_id = Column(String(36))
+    prompt_name = Column(String(100), nullable=False)
+    model = Column(String(100), nullable=False)
+    input_tokens = Column(Integer, default=0)
+    output_tokens = Column(Integer, default=0)
+    cost = Column(DECIMAL(10, 6), default=0)
+    latency_ms = Column(Integer, default=0)
+    status = Column(String(20), default='success')
+    event_time = Column(TIMESTAMP, nullable=False)
+    created_at = Column(TIMESTAMP, default=datetime.now)
+
+
+class TenantUsageDaily(Base):
+    """租户日用量汇总"""
+    __tablename__ = "platform_tenant_usage_daily"
+    
+    id = Column(BigInteger, primary_key=True, autoincrement=True)
+    tenant_id = Column(BigInteger, nullable=False)
+    app_code = Column(String(50), nullable=False)
+    stat_date = Column(Date, nullable=False)
+    ai_calls = Column(Integer, default=0)
+    ai_tokens = Column(BigInteger, default=0)
+    ai_cost = Column(DECIMAL(10, 4), default=0)
+    created_at = Column(TIMESTAMP, default=datetime.now)
+    updated_at = Column(TIMESTAMP, default=datetime.now, onupdate=datetime.now)