backend redesign

backend.old/src/schema/indicator.py

@@ -0,0 +1,40 @@
+from typing import Dict, Any, Optional, List
+from pydantic import BaseModel, Field
+
+
+class IndicatorInstance(BaseModel):
+    """
+    Represents an instance of an indicator applied to a chart.
+
+    This schema holds both the TA-Lib metadata and TradingView-specific data
+    needed for synchronization.
+    """
+    id: str = Field(..., description="Unique identifier for this indicator instance")
+
+    # TA-Lib metadata
+    talib_name: str = Field(..., description="TA-Lib indicator name (e.g., 'RSI', 'SMA', 'MACD')")
+    instance_name: str = Field(..., description="User-friendly instance name")
+    parameters: Dict[str, Any] = Field(default_factory=dict, description="TA-Lib indicator parameters")
+
+    # TradingView metadata
+    tv_study_id: Optional[str] = Field(default=None, description="TradingView study ID assigned by the chart widget")
+    tv_indicator_name: Optional[str] = Field(default=None, description="TradingView indicator name if different from TA-Lib")
+    tv_inputs: Optional[Dict[str, Any]] = Field(default=None, description="TradingView-specific input parameters")
+
+    # Visual properties
+    visible: bool = Field(default=True, description="Whether indicator is visible on chart")
+    pane: str = Field(default="chart", description="Pane where indicator is displayed ('chart' or 'separate')")
+
+    # Metadata
+    symbol: Optional[str] = Field(default=None, description="Symbol this indicator is applied to")
+    created_at: Optional[int] = Field(default=None, description="Creation timestamp (Unix seconds)")
+    modified_at: Optional[int] = Field(default=None, description="Last modification timestamp (Unix seconds)")
+    original_id: Optional[str] = Field(default=None, description="Original ID from backend before TradingView assigns its own ID")
+
+
+class IndicatorCollection(BaseModel):
+    """Collection of all indicator instances on the chart."""
+    indicators: Dict[str, IndicatorInstance] = Field(
+        default_factory=dict,
+        description="Dictionary of indicator instances keyed by ID"
+    )