-- =====================================================
-- ML SCHEMA - ENUMS
-- =====================================================
-- Description: Enumerations for ML signals system
-- Schema: ml
-- Author: Database Agent
-- Date: 2025-12-06
-- =====================================================

-- Tipo de modelo ML
CREATE TYPE ml.model_type AS ENUM (
  'classification',
  'regression',
  'time_series',
  'clustering',
  'anomaly_detection',
  'reinforcement_learning'
);

-- Framework de ML
CREATE TYPE ml.framework AS ENUM (
  'sklearn',
  'tensorflow',
  'pytorch',
  'xgboost',
  'lightgbm',
  'prophet',
  'custom'
);

-- Estado del modelo
CREATE TYPE ml.model_status AS ENUM (
  'development',
  'testing',
  'staging',
  'production',
  'deprecated',
  'archived'
);

-- Tipo de predicción
CREATE TYPE ml.prediction_type AS ENUM (
  'price_direction',  -- UP/DOWN/NEUTRAL
  'price_target',     -- Precio objetivo
  'volatility',       -- Alta/Media/Baja
  'trend',            -- Tendencia
  'signal',           -- BUY/SELL/HOLD
  'risk_score'        -- Score de riesgo
);

-- Resultado de predicción
CREATE TYPE ml.prediction_result AS ENUM (
  'buy',
  'sell',
  'hold',
  'up',
  'down',
  'neutral'
);

-- Estado de outcome
CREATE TYPE ml.outcome_status AS ENUM (
  'pending',
  'correct',
  'incorrect',
  'partially_correct',
  'expired'
);