using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.ComponentModel.DataAnnotations.Schema;

namespace FinlyticSimulation.Database.Entities;

/// <summary>
/// A saved, named-by-(Isin, StrategyKey) set of tunable indicator parameter overrides (see
/// <c>TechnicalContext.ParameterOverrides</c>), so a parameter set found useful via repeated backtest
/// experimentation can be reused without retyping it every time. Purely a backtesting-side convenience - never
/// read by live scanning (<c>FinlyticTechnicals.Services.TechnicalScoringEngine</c> never queries this table).
/// </summary>
[Table("simulation_strategy_parameters")]
public class SimulationStrategyParameterEntity
{
    [Required]
    [MaxLength(20)]
    public string Isin { get; set; } = string.Empty;

    [Required]
    [MaxLength(50)]
    public string StrategyKey { get; set; } = string.Empty;

    /// <summary>Keyed by <c>"{StrategyKey}.{ParameterName}"</c>, matching <c>TechnicalContext.ParameterOverrides</c> 1:1.</summary>
    public Dictionary<string, decimal> Parameters { get; set; } = new();

    public DateTime UpdatedAtUtc { get; set; } = DateTime.UtcNow;
}