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package cointop
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import (
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"fmt"
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"strings"
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"sync"
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"time"
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"github.com/miguelmota/cointop/cointop/common/gizak/termui"
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"github.com/miguelmota/cointop/cointop/common/timeutil"
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)
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// ChartView is structure for chart view
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type ChartView struct {
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*View
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}
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// NewChartView returns a new chart view
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func NewChartView() *ChartView {
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return &ChartView{NewView("chart")}
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}
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var chartLock sync.Mutex
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var chartPointsLock sync.Mutex
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// ChartRanges returns list of chart ranges available
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func ChartRanges() []string {
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return []string{
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"24H",
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"3D",
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"7D",
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"1M",
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"3M",
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"6M",
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"1Y",
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"YTD",
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"All Time",
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}
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}
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// ChartRangesMap returns map of chart range time ranges
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func ChartRangesMap() map[string]time.Duration {
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return map[string]time.Duration{
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"All Time": time.Duration(24 * 7 * 4 * 12 * 5 * time.Hour),
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"YTD": time.Duration(1 * time.Second), // this will be calculated
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"1Y": time.Duration(24 * 7 * 4 * 12 * time.Hour),
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"6M": time.Duration(24 * 7 * 4 * 6 * time.Hour),
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"3M": time.Duration(24 * 7 * 4 * 3 * time.Hour),
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"1M": time.Duration(24 * 7 * 4 * time.Hour),
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"7D": time.Duration(24 * 7 * time.Hour),
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"3D": time.Duration(24 * 3 * time.Hour),
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"24H": time.Duration(24 * time.Hour),
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"6H": time.Duration(6 * time.Hour),
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"1H": time.Duration(1 * time.Hour),
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}
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}
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// UpdateChart updates the chart view
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func (ct *Cointop) UpdateChart() error {
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ct.debuglog("UpdateChart()")
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if ct.Views.Chart.Backing() == nil {
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return nil
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}
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chartLock.Lock()
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defer chartLock.Unlock()
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if ct.State.portfolioVisible {
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if err := ct.PortfolioChart(); err != nil {
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return err
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}
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} else {
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symbol := ct.SelectedCoinSymbol()
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name := ct.SelectedCoinName()
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ct.ChartPoints(symbol, name)
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}
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var body string
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if len(ct.State.chartPoints) == 0 {
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body = "\n\n\n\n\nnot enough data for chart"
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} else {
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for i := range ct.State.chartPoints {
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var s string
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for j := range ct.State.chartPoints[i] {
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p := ct.State.chartPoints[i][j]
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s = fmt.Sprintf("%s%c", s, p.Ch)
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}
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body = fmt.Sprintf("%s%s\n", body, s)
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}
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}
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ct.Update(func() error {
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if ct.Views.Chart.Backing() == nil {
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return nil
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}
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ct.Views.Chart.Backing().Clear()
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fmt.Fprint(ct.Views.Chart.Backing(), ct.colorscheme.Chart(body))
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return nil
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})
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return nil
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}
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// ChartPoints calculates the the chart points
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func (ct *Cointop) ChartPoints(symbol string, name string) error {
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ct.debuglog("ChartPoints()")
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maxX := ct.ClampedWidth()
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chartPointsLock.Lock()
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defer chartPointsLock.Unlock()
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// TODO: not do this (SoC)
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go ct.UpdateMarketbar()
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chart := termui.NewLineChart()
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chart.Height = ct.State.chartHeight
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chart.Border = false
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// NOTE: empty list means don't show x-axis labels
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chart.DataLabels = []string{""}
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rangeseconds := ct.chartRangesMap[ct.State.selectedChartRange]
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if ct.State.selectedChartRange == "YTD" {
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ytd := time.Now().Unix() - int64(timeutil.BeginningOfYear().Unix())
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rangeseconds = time.Duration(ytd) * time.Second
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}
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now := time.Now()
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nowseconds := now.Unix()
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start := nowseconds - int64(rangeseconds.Seconds())
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end := nowseconds
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var data []float64
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keyname := symbol
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if keyname == "" {
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keyname = "globaldata"
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}
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cachekey := ct.CacheKey(fmt.Sprintf("%s_%s", keyname, strings.Replace(ct.State.selectedChartRange, " ", "", -1)))
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cached, found := ct.cache.Get(cachekey)
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if found {
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// cache hit
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data, _ = cached.([]float64)
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ct.debuglog("soft cache hit")
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}
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if len(data) == 0 {
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if symbol == "" {
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convert := ct.State.currencyConversion
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graphData, err := ct.api.GetGlobalMarketGraphData(convert, start, end)
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if err != nil {
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return nil
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}
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for i := range graphData.MarketCapByAvailableSupply {
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price := graphData.MarketCapByAvailableSupply[i][1]
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data = append(data, price/1e9)
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}
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} else {
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convert := ct.State.currencyConversion
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graphData, err := ct.api.GetCoinGraphData(convert, symbol, name, start, end)
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if err != nil {
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return nil
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}
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// NOTE: edit `termui.LineChart.shortenFloatVal(float64)` to not
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// use exponential notation.
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for i := range graphData.Price {
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price := graphData.Price[i][1]
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data = append(data, price)
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}
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}
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ct.cache.Set(cachekey, data, 10*time.Second)
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go func() {
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ct.filecache.Set(cachekey, data, 24*time.Hour)
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}()
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}
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chart.Data = data
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termui.Body = termui.NewGrid()
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termui.Body.Width = maxX
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termui.Body.AddRows(
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termui.NewRow(
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termui.NewCol(12, 0, chart),
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),
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)
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var points [][]termui.Cell
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// calculate layout
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termui.Body.Align()
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w := termui.Body.Width
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h := chart.Height
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row := termui.Body.Rows[0]
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b := row.Buffer()
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for i := 0; i < h; i = i + 1 {
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var rowpoints []termui.Cell
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for j := 0; j < w; j = j + 1 {
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p := b.At(j, i)
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rowpoints = append(rowpoints, p)
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}
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points = append(points, rowpoints)
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}
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ct.State.chartPoints = points
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return nil
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}
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// PortfolioChart renders the portfolio chart
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func (ct *Cointop) PortfolioChart() error {
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ct.debuglog("PortfolioChart()")
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maxX := ct.ClampedWidth()
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chartPointsLock.Lock()
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defer chartPointsLock.Unlock()
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// TODO: not do this (SoC)
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go ct.UpdateMarketbar()
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chart := termui.NewLineChart()
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chart.Height = ct.State.chartHeight
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chart.Border = false
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// NOTE: empty list means don't show x-axis labels
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chart.DataLabels = []string{""}
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rangeseconds := ct.chartRangesMap[ct.State.selectedChartRange]
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if ct.State.selectedChartRange == "YTD" {
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ytd := time.Now().Unix() - int64(timeutil.BeginningOfYear().Unix())
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rangeseconds = time.Duration(ytd) * time.Second
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}
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now := time.Now()
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nowseconds := now.Unix()
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start := nowseconds - int64(rangeseconds.Seconds())
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end := nowseconds
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var data []float64
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portfolio := ct.GetPortfolioSlice()
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chartname := ct.SelectedCoinName()
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for _, p := range portfolio {
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// filter by selected chart if selected
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if chartname != "" {
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if chartname != p.Name {
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continue
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}
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}
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if p.Holdings <= 0 {
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continue
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}
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var graphData []float64
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cachekey := strings.ToLower(fmt.Sprintf("%s_%s", p.Symbol, strings.Replace(ct.State.selectedChartRange, " ", "", -1)))
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cached, found := ct.cache.Get(cachekey)
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if found {
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// cache hit
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graphData, _ = cached.([]float64)
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ct.debuglog("soft cache hit")
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} else {
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ct.filecache.Get(cachekey, &graphData)
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if len(graphData) == 0 {
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time.Sleep(2 * time.Second)
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convert := ct.State.currencyConversion
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apiGraphData, err := ct.api.GetCoinGraphData(convert, p.Symbol, p.Name, start, end)
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if err != nil {
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return err
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}
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for i := range apiGraphData.Price {
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price := apiGraphData.Price[i][1]
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graphData = append(graphData, price)
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}
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}
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ct.cache.Set(cachekey, graphData, 10*time.Second)
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go func() {
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ct.filecache.Set(cachekey, graphData, 24*time.Hour)
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}()
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}
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for i := range graphData {
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price := graphData[i]
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sum := p.Holdings * price
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if len(data)-1 >= i {
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data[i] += sum
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}
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data = append(data, sum)
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}
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}
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chart.Data = data
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termui.Body = termui.NewGrid()
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termui.Body.Width = maxX
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termui.Body.AddRows(
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termui.NewRow(
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termui.NewCol(12, 0, chart),
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),
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)
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var points [][]termui.Cell
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// calculate layout
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termui.Body.Align()
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w := termui.Body.Width
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h := chart.Height
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row := termui.Body.Rows[0]
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b := row.Buffer()
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for i := 0; i < h; i = i + 1 {
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var rowpoints []termui.Cell
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for j := 0; j < w; j = j + 1 {
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p := b.At(j, i)
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rowpoints = append(rowpoints, p)
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}
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points = append(points, rowpoints)
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}
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ct.State.chartPoints = points
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return nil
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}
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// ShortenChart decreases the chart height by one row
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func (ct *Cointop) ShortenChart() error {
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ct.debuglog("ShortenChart()")
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candidate := ct.State.chartHeight - 1
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if candidate < 5 {
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return nil
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}
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ct.State.chartHeight = candidate
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go ct.UpdateChart()
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return nil
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}
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// EnlargeChart increases the chart height by one row
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func (ct *Cointop) EnlargeChart() error {
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ct.debuglog("EnlargeChart()")
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candidate := ct.State.chartHeight + 1
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if candidate > 30 {
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return nil
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}
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ct.State.chartHeight = candidate
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go ct.UpdateChart()
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return nil
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}
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// NextChartRange sets the chart to the next range option
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func (ct *Cointop) NextChartRange() error {
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ct.debuglog("NextChartRange()")
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sel := 0
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max := len(ct.chartRanges)
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for i, k := range ct.chartRanges {
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if k == ct.State.selectedChartRange {
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sel = i + 1
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break
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}
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}
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if sel > max-1 {
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sel = 0
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}
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ct.State.selectedChartRange = ct.chartRanges[sel]
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go ct.UpdateChart()
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return nil
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}
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// PrevChartRange sets the chart to the prevous range option
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func (ct *Cointop) PrevChartRange() error {
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ct.debuglog("PrevChartRange()")
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sel := 0
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for i, k := range ct.chartRanges {
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if k == ct.State.selectedChartRange {
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sel = i - 1
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break
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}
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}
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if sel < 0 {
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sel = len(ct.chartRanges) - 1
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}
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ct.State.selectedChartRange = ct.chartRanges[sel]
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go ct.UpdateChart()
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return nil
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}
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// FirstChartRange sets the chart to the first range option
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func (ct *Cointop) FirstChartRange() error {
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ct.debuglog("FirstChartRange()")
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ct.State.selectedChartRange = ct.chartRanges[0]
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go ct.UpdateChart()
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return nil
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}
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// LastChartRange sets the chart to the last range option
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|
func (ct *Cointop) LastChartRange() error {
|
|
|
|
ct.debuglog("LastChartRange()")
|
|
|
|
ct.State.selectedChartRange = ct.chartRanges[len(ct.chartRanges)-1]
|
|
|
|
go ct.UpdateChart()
|
|
|
|
return nil
|
|
|
|
}
|
|
|
|
|
|
|
|
// ToggleCoinChart toggles between the global chart and the coin chart
|
|
|
|
func (ct *Cointop) ToggleCoinChart() error {
|
|
|
|
ct.debuglog("ToggleCoinChart()")
|
|
|
|
highlightedcoin := ct.HighlightedRowCoin()
|
|
|
|
if ct.State.selectedCoin == highlightedcoin {
|
|
|
|
ct.State.selectedCoin = nil
|
|
|
|
} else {
|
|
|
|
ct.State.selectedCoin = highlightedcoin
|
|
|
|
}
|
|
|
|
|
|
|
|
go func() {
|
|
|
|
// keep these two synchronous to avoid race conditions
|
|
|
|
ct.ShowChartLoader()
|
|
|
|
ct.UpdateChart()
|
|
|
|
}()
|
|
|
|
|
|
|
|
go ct.UpdateMarketbar()
|
|
|
|
|
|
|
|
return nil
|
|
|
|
}
|
|
|
|
|
|
|
|
// ShowChartLoader shows chart loading indicator
|
|
|
|
func (ct *Cointop) ShowChartLoader() error {
|
|
|
|
ct.debuglog("ShowChartLoader()")
|
|
|
|
ct.Update(func() error {
|
|
|
|
if ct.Views.Chart.Backing() == nil {
|
|
|
|
return nil
|
|
|
|
}
|
|
|
|
|
|
|
|
content := "\n\nLoading..."
|
|
|
|
ct.Views.Chart.Backing().Clear()
|
|
|
|
fmt.Fprint(ct.Views.Chart.Backing(), ct.colorscheme.Chart(content))
|
|
|
|
return nil
|
|
|
|
})
|
|
|
|
|
|
|
|
return nil
|
|
|
|
}
|