new model and endpoints..

internal/database/main.go

@@ -69,6 +69,29 @@ func InitDB(db *sql.DB) {
         UNIQUE(company_id, name)
     );
 
+    -- parent table
+    CREATE TABLE closed_positions (
+        id            INTEGER PRIMARY KEY AUTOINCREMENT,
+        symbol        TEXT NOT NULL,
+        currency_code TEXT NOT NULL,
+        product       TEXT NOT NULL,
+        open_time     DATETIME NOT NULL,
+        realized_gain REAL,
+        tax_amount    REAL,
+        holding_days  INTEGER
+    );
+
+    -- child table, one row per close lot
+    CREATE TABLE close_entries (
+        id                  INTEGER PRIMARY KEY AUTOINCREMENT,
+        closed_position_id  INTEGER NOT NULL REFERENCES closed_positions(id),
+        shares              INTEGER NOT NULL,
+        in_price            REAL NOT NULL,
+        out_price           REAL NOT NULL,
+        gain_price          REAL NOT NULL,
+        close_time          DATETIME NOT NULL
+    );
+
     CREATE TABLE IF NOT EXISTS revenue_entries (
         id          INTEGER PRIMARY KEY AUTOINCREMENT,
         company_id  INTEGER NOT NULL,

internal/model/portifolio.go

@@ -5,6 +5,36 @@ import (
 	"time"
 )
 
+type Dividend struct {
+	Symbol       string
+	CurrencyCode string
+	Product      TradeProduct
+	Value        float64
+	PaymentDate  time.Time
+	TaxAmount    float64
+	TaxRate      float64
+	NetValue     float64
+}
+
+type CloseEntry struct {
+	Shares    int
+	InPrice   float64
+	OutPrice  float64
+	GainPrice float64
+	CloseTime time.Time
+}
+
+type ClosedPosition struct {
+	Symbol       string
+	CurrencyCode string
+	Product      TradeProduct
+	Closes       []CloseEntry // each close carries its own prices + share count
+	OpenTime     time.Time
+	RealizedGain float64
+	TaxAmount    float64
+	HoldingDays  int
+}
+
 type Position struct {
 	CompanyID    int
 	Symbol       string
@@ -81,4 +111,6 @@ func (r *AddTradeRequest) Validate() error {
 type Portifolio struct {
 	Positions []Position
 	Trades    []Trade
+	closed    []ClosedPosition
+	Dividends []Dividend
 }