mirror of
https://github.com/taigrr/wtf
synced 2025-01-18 04:03:14 -08:00
fd91a48f58
Allows the user to set the precision for their exchange rate values. Config setting: ``` exchangerates: precision: 3 ``` Default is `7`. Also aligns converted values along the decimal place for improved aesthetics. Signed-off-by: Chris Cummer <chriscummer@me.com>
87 lines
1.8 KiB
Go
87 lines
1.8 KiB
Go
package exchangerates
|
|
|
|
import (
|
|
"fmt"
|
|
"regexp"
|
|
|
|
"github.com/rivo/tview"
|
|
"github.com/wtfutil/wtf/view"
|
|
"github.com/wtfutil/wtf/wtf"
|
|
)
|
|
|
|
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) {
|
|
if widget.err != nil {
|
|
return widget.CommonSettings().Title, widget.err.Error(), false
|
|
}
|
|
|
|
out := ""
|
|
idx := 0
|
|
for base, rates := range widget.settings.rates {
|
|
for _, cur := range rates {
|
|
rate := widget.rates[base][cur]
|
|
|
|
out += fmt.Sprintf(
|
|
"[%s]1 %s = %s %s[white]\n",
|
|
widget.CommonSettings().RowColor(idx),
|
|
base,
|
|
widget.formatConversionRate(rate),
|
|
cur,
|
|
)
|
|
|
|
idx++
|
|
}
|
|
}
|
|
|
|
return widget.CommonSettings().Title, out, false
|
|
}
|
|
|
|
// formatConversionRate takes the raw conversion float and formats it to the precision the
|
|
// user specifies in their config (or to the default value)
|
|
func (widget *Widget) formatConversionRate(rate float64) string {
|
|
rate = wtf.TruncateFloat64(rate, widget.settings.precision)
|
|
|
|
r, _ := regexp.Compile(`\.?0*$`)
|
|
return r.ReplaceAllString(fmt.Sprintf("%10.7f", rate), "")
|
|
}
|