107 lines
3.5 KiB
Go
107 lines
3.5 KiB
Go
package devtools
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import (
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"fmt"
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"github.com/egoist/mygo/ui"
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"git.zacharyzhang.com/ZacharyZhang-NY/MujicaUI/agent"
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"git.zacharyzhang.com/ZacharyZhang-NY/MujicaUI/chart"
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"git.zacharyzhang.com/ZacharyZhang-NY/MujicaUI/core"
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"git.zacharyzhang.com/ZacharyZhang-NY/MujicaUI/theme"
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)
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// ServiceHealth is a service's state. The zero value is ServiceOperational.
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type ServiceHealth int
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const (
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ServiceOperational ServiceHealth = iota
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ServiceDegraded
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ServiceOutage
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)
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// ServiceItem is one service the caller reports.
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type ServiceItem struct {
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Name string
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Health ServiceHealth
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// Note explains a degraded or down service.
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Note string
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}
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// ServiceStatusOptions configure a ServiceStatus.
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type ServiceStatusOptions struct {
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// MaxHeight caps the scrolling list; zero means 360.
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MaxHeight float32
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}
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// ServiceStatus lists service health and an overall summary.
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func ServiceStatus(c *ui.Context, services []ServiceItem, opts ServiceStatusOptions) *ui.Element {
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if opts.MaxHeight < 0 {
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panic("mujica: ServiceStatus MaxHeight is negative")
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}
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col := ui.Column(c).Shrink(0).Gap(core.Density(c).Unit() * 2)
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summaryState := ui.Local(col, "mujica.services.summary", func() serviceSummary { return serviceSummary{key: "unset"} })
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if key := chart.ChartID(services); key != summaryState.key {
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worst, counts := ServiceOperational, [3]int{}
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for i, s := range services {
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if s.Name == "" || s.Health < ServiceOperational || s.Health > ServiceOutage {
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panic(fmt.Sprintf("mujica: ServiceStatus service %d needs a Name and a known Health", i))
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}
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worst = max(worst, s.Health)
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counts[s.Health]++
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}
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summaryState.key, summaryState.worst, summaryState.counts = key, worst, counts
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}
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worst, counts := summaryState.worst, summaryState.counts
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maxH := opts.MaxHeight
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if maxH == 0 {
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maxH = 360
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}
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k := core.Tokens(c)
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u := core.Density(c).Unit()
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summary := core.Msg(c, [...]string{"service_status.all_ok", "service_status.some_degraded", "service_status.some_down"}[worst])
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col.Label(summary)
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col.Children(func() {
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ui.Row(c).Gap(u*3).AlignItems(ui.Center).Padding(u*3).Radius(theme.CardRadius).Border(theme.BorderWidth, k.Border).
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Background(k.Surface).Role(ui.RoleStatus).Label(summary).Children(func() {
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devtoolsSeverity(c, serviceSeverity(worst), summary)
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ui.Box(c).Grow(1)
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agent.AgentCaption(c, fmt.Sprintf(core.Msg(c, "service_status.counts"), counts[0], counts[1], counts[2]))
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})
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if len(services) == 0 {
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agent.AgentCaption(c, core.Msg(c, "service_status.empty"))
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return
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}
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agent.AgentRows(c, len(services), func(i int) {
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s := services[i]
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word := serviceWord(c, s.Health)
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ui.Row(c).Key(i).Gap(u*3).AlignItems(ui.Center).MinHeight(core.Density(c).ControlHeight()).Padding(u, u*3).
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Label(s.Name + ", " + word).Children(func() {
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ui.Column(c).Grow(1).Shrink(1).Children(func() {
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ui.Text(c, s.Name).SingleLine()
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if s.Note != "" {
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agent.AgentCaption(c, s.Note)
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}
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})
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devtoolsSeverity(c, serviceSeverity(s.Health), word)
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})
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}).Shrink(1).MaxHeight(maxH).Background(k.Surface).Border(theme.BorderWidth, k.Border).
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Radius(theme.CardRadius).Dividers(theme.BorderWidth, k.Border)
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})
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return col
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}
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func serviceSeverity(h ServiceHealth) core.Severity {
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return [...]core.Severity{core.SeveritySuccess, core.SeverityWarning, core.SeverityError}[h]
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}
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func serviceWord(c *ui.Context, h ServiceHealth) string {
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return core.Msg(c, [...]string{"service_status.operational", "service_status.degraded", "service_status.outage"}[h])
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}
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type serviceSummary struct {
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key string
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worst ServiceHealth
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counts [3]int
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}
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