first commit

app/models/migration.py

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+from pydantic import BaseModel, Field
+from datetime import datetime
+from typing import List, Dict, Any, Optional
+
+
+class MigrationStatus(BaseModel):
+    """Статус миграции"""
+    is_running: bool = False
+    current_table: Optional[str] = None
+    progress: float = 0.0
+    start_time: Optional[datetime] = None
+    estimated_completion: Optional[datetime] = None
+
+
+class TableInfo(BaseModel):
+    """Информация о таблице"""
+    name: str
+    row_count: int
+    last_replication: Optional[datetime] = None
+    columns: List[str] = Field(default_factory=list)
+    has_pk: bool = False
+    has_date_column: bool = False
+
+
+class MigrationRequest(BaseModel):
+    """Запрос на миграцию"""
+    tables: Optional[List[str]] = None
+    full_reload: bool = False
+    send_email: bool = True
+    parallel_workers: int = 1
+
+
+class MigrationResponse(BaseModel):
+    """Ответ на запрос миграции"""
+    success: bool
+    message: str
+    task_id: Optional[str] = None
+    start_time: datetime = Field(default_factory=datetime.now)
+
+
+class MigrationReport(BaseModel):
+    """Отчет о миграции"""
+    summary: Dict[str, Any]
+    successful_tables: List[Dict[str, Any]]
+    failed_tables: List[Dict[str, Any]]
+    schema_changes: List[Dict[str, Any]]
+    errors: List[Dict[str, Any]]
+    
+    class Config:
+        json_encoders = {
+            datetime: lambda v: v.isoformat()
+        }
+
+
+class ColumnInfo(BaseModel):
+    """Информация о колонке"""
+    name: str
+    type: str
+    nullable: bool
+    max_length: Optional[int] = None
+    default: Optional[str] = None
+
+
+class SchemaDiff(BaseModel):
+    """Различия в схемах"""
+    new_columns: List[ColumnInfo] = Field(default_factory=list)
+    missing_columns: List[str] = Field(default_factory=list)
+    type_mismatches: List[Dict[str, str]] = Field(default_factory=list)