Fix coins and portfolio row selection

cointop/coins_table.go

@@ -282,3 +282,8 @@ func (ct *Cointop) GetCoinsTable() *table.Table {
 
 	return t
 }
+
+// TableCoinsLen returns the number of coins in coins table
+func (ct *Cointop) TableCoinsLen() int {
+	return len(ct.GetTableCoinsSlice())
+}

cointop/navigation.go

@@ -589,6 +589,16 @@ func (ct *Cointop) TableRowsLen() int {
 	if ct.IsPriceAlertsVisible() {
 		return ct.ActivePriceAlertsLen()
 	}
+	return ct.TableCoinsLen()
+}
 
-	return len(ct.State.coins)
+// GetActiveTableSlice returns the rows slice for the active table
+func (ct *Cointop) GetActiveTableSlice() []*Coin {
+	if ct.IsFavoritesVisible() {
+		return ct.GetFavoritesSlice()
+	}
+	if ct.IsPortfolioVisible() {
+		return ct.GetPortfolioSlice()
+	}
+	return ct.GetTableCoinsSlice()
 }

cointop/portfolio.go

@@ -368,7 +368,6 @@ func (ct *Cointop) ShowPortfolioUpdateMenu() error {
 		return nil
 	}
 
-	ct.State.lastSelectedRowIndex = ct.HighlightedPageRowIndex()
 	ct.State.portfolioUpdateMenuVisible = true
 	ct.UpdatePortfolioUpdateMenu()
 	ct.ui.SetCursor(true)
@@ -426,6 +425,7 @@ func (ct *Cointop) SetPortfolioHoldings() error {
 		}
 	}
 
+	idx := ct.GetPortfolioCoinIndex(coin)
 	if err := ct.SetPortfolioEntry(coin.Name, holdings); err != nil {
 		return err
 	}
@@ -433,16 +433,21 @@ func (ct *Cointop) SetPortfolioHoldings() error {
 	if shouldDelete {
 		ct.RemovePortfolioEntry(coin.Name)
 		ct.UpdateTable()
+		if idx > 0 {
+			idx -= 1
+		}
 	} else {
 		ct.UpdateTable()
-		ct.GoToPageRowIndex(ct.State.lastSelectedRowIndex)
+		ct.ToggleShowPortfolio()
+		idx = ct.GetPortfolioCoinIndex(coin)
 	}
 
+	ct.HighlightRow(idx)
+
 	if err := ct.Save(); err != nil {
 		return err
 	}
 
-	ct.ToggleShowPortfolio()
 	return nil
 }
 
@@ -814,6 +819,25 @@ func (ct *Cointop) PrintTotalHoldings(options *TablePrintOptions) error {
 	return nil
 }
 
+// GetPortfolioCoinIndex returns the row index of coin in portfolio
+func (ct *Cointop) GetPortfolioCoinIndex(coin *Coin) int {
+	coins := ct.GetPortfolioSlice()
+	for i, c := range coins {
+		if c.ID == coin.ID {
+			return i
+		}
+	}
+	return 0
+}
+
+func (ct *Cointop) GetLastPortfolioRowIndex() int {
+	l := ct.PortfolioLen()
+	if l > 0 {
+		l -= 1
+	}
+	return l
+}
+
 // IsPortfolioVisible returns true if portfolio view is visible
 func (ct *Cointop) IsPortfolioVisible() bool {
 	return ct.State.selectedView == PortfolioView

cointop/price_alerts.go

@@ -287,7 +287,6 @@ func (ct *Cointop) UpdatePriceAlertsUpdateMenu(isNew bool) error {
 func (ct *Cointop) ShowPriceAlertsAddMenu() error {
 	ct.debuglog("showPriceAlertsAddMenu()")
 	ct.SetSelectedView(PriceAlertsView)
-	ct.State.lastSelectedRowIndex = ct.HighlightedPageRowIndex()
 	ct.UpdatePriceAlertsUpdateMenu(true)
 	ct.ui.SetCursor(true)
 	ct.SetActiveView(ct.Views.Menu.Name())
@@ -300,7 +299,6 @@ func (ct *Cointop) ShowPriceAlertsAddMenu() error {
 func (ct *Cointop) ShowPriceAlertsUpdateMenu() error {
 	ct.debuglog("showPriceAlertsUpdateMenu()")
 	ct.SetSelectedView(PriceAlertsView)
-	ct.State.lastSelectedRowIndex = ct.HighlightedPageRowIndex()
 	ct.UpdatePriceAlertsUpdateMenu(false)
 	ct.ui.SetCursor(true)
 	ct.SetActiveView(ct.Views.Menu.Name())
@@ -357,14 +355,18 @@ func (ct *Cointop) CreatePriceAlert() error {
 	if err != nil {
 		return err
 	}
-
-	if err := ct.SetPriceAlert(coinName, operator, targetPrice); err != nil {
-		return err
+	shouldDelete := targetPrice == -1
+	if shouldDelete {
+		ct.RemovePriceAlert(ct.State.priceAlertEditID)
+	} else {
+		if err := ct.SetPriceAlert(coinName, operator, targetPrice); err != nil {
+			return err
+		}
 	}
 
 	ct.UpdateTable()
-	if isNew {
-		ct.GoToPageRowIndex(0)
+	if isNew || shouldDelete {
+		ct.HighlightRow(0)
 	}
 
 	return nil
@@ -383,6 +385,9 @@ func (ct *Cointop) ReadAndParsePriceAlertInput() (string, float64, error) {
 	}
 
 	inputValue := string(b)
+	if inputValue == "" {
+		return "", -1, nil
+	}
 	operator, targetPrice, err := ct.ParsePriceAlertInput(inputValue)
 	if err != nil {
 		return "", 0, err
@@ -404,6 +409,9 @@ func (ct *Cointop) ParsePriceAlertInput(value string) (string, float64, error) {
 		amountValue = matches[2]
 	}
 	amountValue = normalizeFloatString(amountValue, false)
+	if amountValue == "" {
+		return "", -1, nil
+	}
 	targetPrice, err := strconv.ParseFloat(amountValue, 64)
 	if err != nil {
 		return "", 0, err
@@ -451,6 +459,16 @@ func (ct *Cointop) SetPriceAlert(coinName string, operator string, targetPrice f
 	return nil
 }
 
+// RemovePriceAlert removes a price alert entry
+func (ct *Cointop) RemovePriceAlert(id string) {
+	ct.debuglog("removePriceAlert()")
+	for i, entry := range ct.State.priceAlerts.Entries {
+		if entry.ID == ct.State.priceAlertEditID {
+			ct.State.priceAlerts.Entries = append(ct.State.priceAlerts.Entries[:i], ct.State.priceAlerts.Entries[i+1:]...)
+		}
+	}
+}
+
 // ActivePriceAlerts returns the active price alerts
 func (ct *Cointop) ActivePriceAlerts() []*PriceAlert {
 	var filtered []*PriceAlert

cointop/table.go

@@ -2,7 +2,6 @@ package cointop
 
 import (
 	"fmt"
-	"math"
 	"net/url"
 	"strings"
 
@@ -176,6 +175,11 @@ func (ct *Cointop) HighlightedPageRowIndex() int {
 	return idx
 }
 
+// GetLastSelectedRowCoinIndex returns the index of the last selected row coin
+func (ct *Cointop) GetLastSelectedRowCoinIndex() int {
+	return ct.State.lastSelectedRowIndex
+}
+
 // RowLink returns the row url link
 func (ct *Cointop) RowLink() string {
 	ct.debuglog("RowLink()")
@@ -248,7 +252,7 @@ func (ct *Cointop) SetSelectedView(viewName string) {
 // ToggleSelectedView toggles between current table view and last selected table view
 func (ct *Cointop) ToggleSelectedView(viewName string) {
 	if !(ct.IsPortfolioVisible() || ct.IsFavoritesVisible()) {
-		ct.State.lastSelectedRowIndex = ct.HighlightedPageRowIndex()
+		ct.State.lastSelectedRowIndex = ct.HighlightedRowIndex()
 	}
 	if ct.State.lastSelectedView == "" || ct.State.selectedView != viewName {
 		ct.SetSelectedView(viewName)
@@ -264,6 +268,6 @@ func (ct *Cointop) ToggleSelectedView(viewName string) {
 			ct.HighlightRow(l - 1)
 		}
 	} else {
-		ct.GoToPageRowIndex(int(math.Min(float64(l-1), float64(ct.State.lastSelectedRowIndex))))
+		ct.HighlightRow(ct.State.lastSelectedRowIndex)
 	}
 }