textbox component

component/textbox/textbox.go

@@ -0,0 +1,62 @@
+package textbox
+
+import (
+	ui "github.com/gizak/termui/v3"
+	"github.com/sqshq/sampler/component"
+	"github.com/sqshq/sampler/config"
+	"github.com/sqshq/sampler/console"
+	"github.com/sqshq/sampler/data"
+	"image"
+)
+
+type TextBox struct {
+	*ui.Block
+	*data.Consumer
+	alert  *data.Alert
+	text   string
+	border bool
+}
+
+func NewTextBox(c config.TextBoxConfig, palette console.Palette) *TextBox {
+
+	box := TextBox{
+		Block:    component.NewBlock(c.Title, *c.Border, palette),
+		Consumer: data.NewConsumer(),
+	}
+
+	go func() {
+		for {
+			select {
+			case sample := <-box.SampleChannel:
+				box.text = sample.Value
+			case alert := <-box.AlertChannel:
+				box.alert = alert
+			}
+		}
+	}()
+
+	return &box
+}
+
+func (t *TextBox) Draw(buffer *ui.Buffer) {
+
+	t.Block.Draw(buffer)
+
+	cells := ui.ParseStyles(t.text, ui.Theme.Paragraph.Text)
+	cells = ui.WrapCells(cells, uint(t.Inner.Dx()))
+
+	rows := ui.SplitCells(cells, '\n')
+
+	for y, row := range rows {
+		if y+t.Inner.Min.Y >= t.Inner.Max.Y {
+			break
+		}
+		row = ui.TrimCells(row, t.Inner.Dx())
+		for _, cx := range ui.BuildCellWithXArray(row) {
+			x, cell := cx.X, cx.Cell
+			buffer.SetCell(cell, image.Pt(x, y+1).Add(t.Inner.Min))
+		}
+	}
+
+	component.RenderAlert(t.alert, t.Rectangle, buffer)
+}

config.yml

@@ -27,30 +27,30 @@ runcharts:
   scale: 0
   items:
     - label: ACTIVE
-      init: ${mongoconnection}
+      init: $mongoconnection
       sample: db.getCollection('posts').find({status:'ACTIVE'}).itcount()
     - label: INACTIVE
-      init: ${mongoconnection}
+      init: $mongoconnection
       sample: db.getCollection('posts').find({status:'INACTIVE'}).itcount()
 barcharts:
 - title: EVENTS BY STATUS
-  position: [[0, 17], [27, 12]]
+  position: [[0, 17], [28, 12]]
   rate-ms: 300
   scale: 0
   items:
     - label: NEW
-      init: ${mongoconnection}
+      init: $mongoconnection
       sample: db.getCollection('posts').find({status:'ACTIVE'}).itcount()
     - label: TRIGGERED
-      init: ${mongoconnection}
+      init: $mongoconnection
       sample: db.getCollection('posts').find({status:'INACTIVE'}).itcount()
     - label: IN_PROCESS
       sample: echo 0
     - label: FAILED
-      init: ${mongoconnection}
+      init: $mongoconnection
       sample: db.getCollection('posts').find({status:'ACTIVE'}).itcount()
     - label: FINISHED
-      init: ${mongoconnection}
+      init: $mongoconnection
       sample: db.getCollection('posts').find({status:'INACTIVE'}).itcount()
 gauges:
 - title: YEAR PROGRESS
@@ -91,6 +91,31 @@ gauges:
     sample: echo 60
   min:
     sample: echo 0
+sparklines:
+  - title: CPU usage
+    position: [[28, 22], [24, 7]]
+    scale: 0
+    sample: ps -A -o %cpu | awk '{s+=$1} END {print s}'
+  - title: Memory pages free
+    position: [[28, 17], [24, 5]]
+    scale: 0
+    sample: memory_pressure | grep 'Pages free' | awk '{print $3}'
+textboxes:
+  - title: Local weather
+    position: [[0, 30], [13, 7]]
+    rate-ms: 10000
+    sample: curl wttr.in?0ATQF
+    border: false
+  - title: New York weather
+    position: [[8, 30], [13, 7]]
+    rate-ms: 10000
+    sample: curl wttr.in/newyork?0ATQF
+    border: false
+  - title: San Francisco weather
+    position: [[17, 30], [13, 7]]
+    rate-ms: 10000
+    sample: curl wttr.in/sanfrancisco?0ATQF
+    border: false
 asciiboxes:
 - title: LOCAL TIME
   position: [[53, 17], [27, 5]]
@@ -99,12 +124,3 @@ asciiboxes:
   position: [[53, 22], [27, 7]]
   sample: env TZ=UTC date +%r
   font: 3d
-sparklines:
-- title: CPU usage
-  position: [[27, 22], [25, 7]]
-  scale: 0
-  sample: ps -A -o %cpu | awk '{s+=$1} END {print s}'
-- title: Memory pages free
-  position: [[27, 17], [25, 5]]
-  scale: 0
-  sample: memory_pressure | grep 'Pages free' | awk '{print $3}'

config/component.go

@@ -70,9 +70,16 @@ type BarChartConfig struct {
 type AsciiBoxConfig struct {
 	ComponentConfig `yaml:",inline"`
 	Item            `yaml:",inline"`
+	Border          *bool              `yaml:"border,omitempty"`
 	Font            *console.AsciiFont `yaml:"font,omitempty"`
 }
 
+type TextBoxConfig struct {
+	ComponentConfig `yaml:",inline"`
+	Item            `yaml:",inline"`
+	Border          *bool `yaml:"border,omitempty"`
+}
+
 type RunChartConfig struct {
 	ComponentConfig `yaml:",inline"`
 	Legend          *LegendConfig `yaml:"legend,omitempty"`

config/config.go

@@ -16,8 +16,9 @@ type Config struct {
 	RunCharts  []RunChartConfig  `yaml:"runcharts,omitempty"`
 	BarCharts  []BarChartConfig  `yaml:"barcharts,omitempty"`
 	Gauges     []GaugeConfig     `yaml:"gauges,omitempty"`
-	AsciiBoxes []AsciiBoxConfig  `yaml:"asciiboxes,omitempty"`
 	SparkLines []SparkLineConfig `yaml:"sparklines,omitempty"`
+	TextBoxes  []TextBoxConfig   `yaml:"textboxes,omitempty"`
+	AsciiBoxes []AsciiBoxConfig  `yaml:"asciiboxes,omitempty"`
 }
 
 func Load() (Config, Options) {
@@ -66,16 +67,22 @@ func (c *Config) findComponent(componentType ComponentType, componentTitle strin
 				return &c.Gauges[i].ComponentConfig
 			}
 		}
+	case TypeSparkLine:
+		for i, component := range c.SparkLines {
+			if component.Title == componentTitle {
+				return &c.SparkLines[i].ComponentConfig
+			}
+		}
 	case TypeAsciiBox:
 		for i, component := range c.AsciiBoxes {
 			if component.Title == componentTitle {
 				return &c.AsciiBoxes[i].ComponentConfig
 			}
 		}
-	case TypeSparkLine:
+	case TypeTextBox:
-		for i, component := range c.SparkLines {
+		for i, component := range c.TextBoxes {
 			if component.Title == componentTitle {
-				return &c.SparkLines[i].ComponentConfig
+				return &c.TextBoxes[i].ComponentConfig
 			}
 		}
 	}

config/default.go

@@ -120,6 +120,27 @@ func (c *Config) setDefaultValues() {
 		}
 		c.AsciiBoxes[i] = box
 	}
+
+	for i, box := range c.TextBoxes {
+
+		setDefaultTriggersValues(box.Triggers)
+		box.ComponentConfig.Type = TypeTextBox
+
+		if box.RateMs == nil {
+			r := defaultRateMs
+			box.RateMs = &r
+		}
+		if box.Label == nil {
+			label := string(i)
+			box.Label = &label
+		}
+		if box.Border == nil {
+			border := true
+			box.Border = &border
+		}
+
+		c.TextBoxes[i] = box
+	}
 }
 
 func setDefaultTriggersValues(triggers []TriggerConfig) {

main.go

@@ -10,6 +10,7 @@ import (
 	"github.com/sqshq/sampler/component/layout"
 	"github.com/sqshq/sampler/component/runchart"
 	"github.com/sqshq/sampler/component/sparkline"
+	"github.com/sqshq/sampler/component/textbox"
 	"github.com/sqshq/sampler/config"
 	"github.com/sqshq/sampler/console"
 	"github.com/sqshq/sampler/data"
@@ -58,11 +59,6 @@ func main() {
 		starter.start(cpt, cpt.Consumer, c.ComponentConfig, []config.Item{c.Item}, c.Triggers)
 	}
 
-	for _, c := range cfg.AsciiBoxes {
-		cpt := asciibox.NewAsciiBox(c, palette)
-		starter.start(cpt, cpt.Consumer, c.ComponentConfig, []config.Item{c.Item}, c.Triggers)
-	}
-
 	for _, c := range cfg.BarCharts {
 		cpt := barchart.NewBarChart(c, palette)
 		starter.start(cpt, cpt.Consumer, c.ComponentConfig, c.Items, c.Triggers)
@@ -73,6 +69,16 @@ func main() {
 		starter.start(cpt, cpt.Consumer, c.ComponentConfig, []config.Item{c.Cur, c.Min, c.Max}, c.Triggers)
 	}
 
+	for _, c := range cfg.AsciiBoxes {
+		cpt := asciibox.NewAsciiBox(c, palette)
+		starter.start(cpt, cpt.Consumer, c.ComponentConfig, []config.Item{c.Item}, c.Triggers)
+	}
+
+	for _, c := range cfg.TextBoxes {
+		cpt := textbox.NewTextBox(c, palette)
+		starter.start(cpt, cpt.Consumer, c.ComponentConfig, []config.Item{c.Item}, c.Triggers)
+	}
+
 	handler := event.NewHandler(lout, opt)
 	handler.HandleEvents()
 }