122 lines
4.5 KiB
Go
122 lines
4.5 KiB
Go
package mujica
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import (
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"cmp"
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"math"
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"github.com/egoist/mygo/ui"
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"mujicaui/icons"
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"mujicaui/theme"
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)
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// EarningsTiming is when a report comes. The zero value is EarningsUnknown.
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type EarningsTiming int
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const (
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EarningsUnknown EarningsTiming = iota
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EarningsBeforeOpen
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EarningsAfterClose
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)
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// EarningsEvent is a scheduled report; NaN actuals are not yet reported.
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type EarningsEvent struct {
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ID, Symbol, Name string
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Date Date
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Timing EarningsTiming
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EPSEstimate float64
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EPSActual float64
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}
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// EarningsCalendarOptions configure an EarningsCalendar.
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type EarningsCalendarOptions struct {
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Version int
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Status DataStatus
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Error string
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Disabled bool
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}
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// EarningsCalendar lists reports with before-open or after-close timing, estimate, actual and surprise.
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func EarningsCalendar(c *ui.Context, s *DataTableState[string], events []EarningsEvent, opts EarningsCalendarOptions) DataTableView {
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if s == nil {
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panic("mujica: EarningsCalendar needs a state")
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}
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cols := []DataColumn[EarningsEvent]{
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{ID: "date", Title: msg(c, "earnings_calendar.date"), Width: 110, Sortable: true,
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Compare: func(a, b EarningsEvent) int { return a.Date.Compare(b.Date) },
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Text: func(e EarningsEvent) string { return e.Date.String() }},
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{ID: "timing", Title: msg(c, "earnings_calendar.timing"), Width: 130, Sortable: true,
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Compare: func(a, b EarningsEvent) int { return cmp.Compare(a.Timing, b.Timing) },
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Text: func(e EarningsEvent) string { return msg(c, earningsTimings[earningsTimingCheck(e.Timing)].key) },
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Cell: func(e EarningsEvent) { earningsTiming(c, e.Timing) }},
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{ID: "symbol", Title: msg(c, "earnings_calendar.symbol"), Width: 90, Sortable: true,
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Compare: func(a, b EarningsEvent) int { return cmp.Compare(a.Symbol, b.Symbol) },
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Text: func(e EarningsEvent) string { return e.Symbol }},
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{ID: "name", Title: msg(c, "earnings_calendar.name"), Text: func(e EarningsEvent) string { return e.Name }},
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{ID: "estimate", Title: msg(c, "earnings_calendar.estimate"), Width: 90, Align: ui.End, Sortable: true,
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Compare: func(a, b EarningsEvent) int { return cmp.Compare(a.EPSEstimate, b.EPSEstimate) },
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Text: func(e EarningsEvent) string { return earningsValue(e.EPSEstimate) }},
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{ID: "actual", Title: msg(c, "earnings_calendar.actual"), Width: 90, Align: ui.End, Sortable: true,
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Compare: func(a, b EarningsEvent) int { return cmp.Compare(a.EPSActual, b.EPSActual) },
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Text: func(e EarningsEvent) string { return earningsValue(e.EPSActual) }},
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{ID: "surprise", Title: msg(c, "earnings_calendar.surprise"), Width: 110, Align: ui.End,
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Text: func(e EarningsEvent) string { return earningsSurpriseText(e) },
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Cell: func(e EarningsEvent) {
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if d := e.EPSActual - e.EPSEstimate; !math.IsNaN(d) {
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tradingSigned(c, d, earningsSurpriseText(e))
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} else {
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ui.Text(c, "—").TextColor(Tokens(c).TextMuted).FillWidth().TextAlign(ui.End)
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}
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}},
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}
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var v DataTableView
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col := ui.Column(c).MinHeight(0).Grow(1).Disabled(opts.Disabled)
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col.Children(func() {
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v = DataTable(c, s, events, DataTableOptions[EarningsEvent, string]{Columns: cols, Key: func(e EarningsEvent) string { return e.ID },
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Version: opts.Version, Status: opts.Status, Error: opts.Error, Empty: msg(c, "earnings_calendar.empty")})
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v.Element.Grow(1)
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})
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v.Element = col
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return v
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}
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var earningsTimings = [3]struct{ key, icon string }{
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{"earnings_calendar.unknown", "clock"}, {"earnings_calendar.before", "sun"}, {"earnings_calendar.after", "moon"},
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}
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func earningsTimingCheck(t EarningsTiming) EarningsTiming {
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if t < EarningsUnknown || t > EarningsAfterClose {
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panic("mujica: EarningsTiming out of range")
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}
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return t
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}
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// earningsTiming shows the timing as an icon and words.
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func earningsTiming(c *ui.Context, t EarningsTiming) {
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k := Tokens(c)
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tm := earningsTimings[earningsTimingCheck(t)]
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ui.Row(c).Gap(4).AlignItems(ui.Center).Children(func() {
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ui.Icon(c, icons.Must(tm.icon)).Size(14, 14).TextColor(k.TextMuted)
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ui.Text(c, msg(c, tm.key)).FontSize(FontSize(c, theme.CaptionSize)).SingleLine()
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})
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}
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func earningsValue(v float64) string {
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if math.IsNaN(v) {
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return "—"
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}
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return statisticFormat(v, 2)
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}
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// earningsSurpriseText is actual minus estimate, with the percent of the estimate.
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func earningsSurpriseText(e EarningsEvent) string {
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d := e.EPSActual - e.EPSEstimate
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if math.IsNaN(d) {
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return "—"
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}
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if e.EPSEstimate == 0 {
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return statisticSigned(d, 2)
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}
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return statisticSigned(d, 2) + " (" + statisticSigned(d/math.Abs(e.EPSEstimate)*100, 1) + "%)"
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}
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