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Chris Cummer 72619a99a4 handle multiple conversions per base currency
Signed-off-by: Chris Cummer <chriscummer@me.com>
2020-03-20 19:46:27 -07:00

72 lines
1.4 KiB
Go

// Package exchangerates
package exchangerates
import (
"fmt"
"github.com/rivo/tview"
"github.com/wtfutil/wtf/view"
)
type Widget struct {
view.ScrollableWidget
settings *Settings
rates map[string]map[string]float64
err error
}
func NewWidget(app *tview.Application, pages *tview.Pages, settings *Settings) *Widget {
widget := Widget{
ScrollableWidget: view.NewScrollableWidget(app, settings.common),
settings: settings,
}
widget.SetRenderFunction(widget.Render)
return &widget
}
/* -------------------- Exported Functions -------------------- */
func (widget *Widget) Refresh() {
rates, err := FetchExchangeRates(widget.settings)
if err != nil {
widget.err = err
} else {
widget.rates = rates
}
// The last call should always be to the display function
widget.Render()
}
func (widget *Widget) Render() {
widget.Redraw(widget.content)
}
/* -------------------- Unexported Functions -------------------- */
func (widget *Widget) content() (string, string, bool) {
out := ""
if widget.err != nil {
out = widget.err.Error()
} else {
for base, rates := range widget.settings.rates {
prefix := fmt.Sprintf("[%s]1 %s[white] = ", widget.settings.common.Colors.Subheading, base)
for idx, cur := range rates {
rate := widget.rates[base][cur]
out += prefix
out += fmt.Sprintf("[%s]%f %s[white]\n", widget.CommonSettings().RowColor(idx), rate, cur)
}
}
}
return widget.CommonSettings().Title, out, false
}