Configure IPCA + Selic annual tax rate.

Author: danielancines

Api/FinancialManager.Data/Models/InvestmentOption.cs

@@ -1,35 +1,68 @@
-using System;
-using System.Text.Json.Serialization;
-
-namespace FinancialManager.Data.Models;
+namespace FinancialManager.Data.Models;
 
 public class InvestmentOption
 {
-    public int Code { get; init; }                                      
-    public string Logo { get; init; } = string.Empty;                   
-    public int ResponsibleCode { get; init; }                           
-    public int StockCode { get; init; }                                 
-    public string StockDescription { get; init; } = string.Empty;       
-    public int StockFcCode { get; init; }                               
-    public string Responsible { get; init; } = string.Empty;            
-    public double TaxRate { get; init; }                                    
-    public string Index { get; init; } = string.Empty;                  
-    public double Percentage { get; init; }                             
-    public int Deadline { get; init; }                                  
-    public string ExpireDate { get; init; } = string.Empty;             
-    public double Minimum { get; init; }                                
-    public double Pu { get; init; }                                     
-    public string StockIssueType { get; init; } = string.Empty;         
-    public string Remuneration { get; init; } = string.Empty;           
-    public string Liquidity { get; init; } = string.Empty;              
-    public string Ir { get; init; } = string.Empty;                     
-    public string Aba { get; init; } = string.Empty;                    
-    public int Suitability { get; init; }                               
-    public string Secured { get; init; } = string.Empty;                
-    public string Qualified { get; init; } = string.Empty;              
-    public string Rating { get; init; } = string.Empty;                 
-    public double Bond { get; init; }                                      
-    public bool Selected { get; init; }                                 
-    public double SelicRate { get; set; }                              
+    public int Code { get; init; }
+    public string Logo { get; init; } = string.Empty;
+    public int ResponsibleCode { get; init; }
+    public int StockCode { get; init; }
+    public string StockDescription { get; init; } = string.Empty;
+    public int StockFcCode { get; init; }
+    public string Responsible { get; init; } = string.Empty;
+    public double TaxRate { get; init; }
+    public string Index { get; init; } = string.Empty;
+    public double Percentage { get; init; }
+    public int Deadline { get; init; }
+    public string ExpireDate { get; init; } = string.Empty;
+    public double Minimum { get; init; }
+    public double Pu { get; init; }
+    public string StockIssueType { get; init; } = string.Empty;
+    public string Remuneration { get; init; } = string.Empty;
+    public string Liquidity { get; init; } = string.Empty;
+    public string Ir { get; init; } = string.Empty;
+    public string Aba { get; init; } = string.Empty;
+    public int Suitability { get; init; }
+    public string Secured { get; init; } = string.Empty;
+    public string Qualified { get; init; } = string.Empty;
+    public string Rating { get; init; } = string.Empty;
+    public double Bond { get; init; }
+    public bool Selected { get; init; }
+    public double SelicRate { get; set; }
     public double IpcaRate { get; set; }
+    public double AnnualTaxRate => this.Index switch
+    {
+        "IPC-A" => ((Math.Pow(1 + (this.IpcaRate / 100d), 1 * 12d) - 1) * 100) + this.TaxRate,
+        "CDI" => this.Percentage * this.SelicRate / 100,
+        "PRE" => this.TaxRate,
+        _ => this.TaxRate
+    };
+
+    public double MonthTaxRate => (Math.Pow(1 + (this.AnnualTaxRate / 100d), 1 / 12d) - 1) * 100;
+    public double DayTaxRate => (Math.Pow(1 + (this.MonthTaxRate / 100d), 1 / 30d) - 1) * 100;
+    public double IrTaxeRate => this.GetIrTaxeRate(this.Deadline);
+
+    double GetIrTaxeRate(int deadLine)
+    {
+        if (deadLine <= 180)
+        {
+            return 22.50;
+        }
+        else if (deadLine > 180 && deadLine <= 365)
+        {
+            return 20;
+        }
+        else if (deadLine > 365 && deadLine <= 720)
+        {
+            return 17.50;
+        }
+        else if (deadLine > 720)
+        {
+            return 15;
+        }
+        else
+        {
+            return 22.50;
+        }
+    }
 }
+