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[feat] command for blink, execute, play (#6)
* cmd blink * Blink for 1s * Pattern preview * One loader for pattern file * Execute the pattern * Set repeat times * play pattern * One place for preargs * Resolve comments
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,125 @@ | ||
| package cmd | ||
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| import ( | ||
| "fmt" | ||
| "image/color" | ||
| "time" | ||
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| "github.com/1set/gut/ystring" | ||
| b1 "github.com/b1ug/blink1-go" | ||
| "github.com/b1ug/nb1/exchange" | ||
| "github.com/b1ug/nb1/hdwr" | ||
| "github.com/b1ug/nb1/util" | ||
| "github.com/spf13/cobra" | ||
| ) | ||
|
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| // blinkCmd represents the turn command | ||
| var blinkCmd = &cobra.Command{ | ||
| Use: "blink <color>...", | ||
| Aliases: aliasesBlink, | ||
| Short: "Blink a blink(1) device to given color", | ||
| Long: hdocf(` | ||
| Blink a blink(1) device to given color (or random color) for a given times. | ||
| The colors should be given as arguments, and can be specified as a hex color code, a color name, or a preset color name. | ||
| For multiple colors, the blink(1) will blink to each color in order. | ||
| e.g. <color1> <off> <color2> <off> <color3> <off> ... <color1> <off> <color2> <off> | ||
| Special colors: | ||
| %s | ||
| Supported preset colors: | ||
| %s | ||
| `, | ||
| util.JoinWrapSlice([]string{"random", "on"}, ", ", 100), | ||
| util.JoinWrapSlice(b1.GetColorNames(), ", ", 100)), | ||
| PersistentPreRunE: openBlink1Device, | ||
| RunE: func(cmd *cobra.Command, args []string) error { | ||
| // clean up args | ||
| var colorRaw []string | ||
| for _, arg := range args { | ||
| if ystring.IsNotBlank(arg) { | ||
| colorRaw = append(colorRaw, arg) | ||
| } | ||
| } | ||
| if len(colorRaw) == 0 { | ||
| // default blink to white | ||
| colorRaw = []string{"white"} | ||
| } | ||
| if blinkTimeDur < 10*time.Millisecond { | ||
| // 10ms is the minimum | ||
| blinkTimeDur = 10 * time.Millisecond | ||
| } | ||
| if blinkTimes == 0 { | ||
| blinkTimes = 5 | ||
| } | ||
| log.Debugw("raw colors to blink blink(1)", "count", len(colorRaw), "colors", colorRaw, "interval", blinkTimeDur, "led", blinkLedNum, "times", blinkTimes) | ||
|
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| // set color now | ||
| performColorChange := func(index int, cl color.Color) error { | ||
| led := b1.LEDIndex(blinkLedNum) | ||
| st := b1.NewLightState(cl, 0, led) | ||
| log.Debugw("set blink(1) state now", "index", index, "state", st) | ||
|
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| // set state | ||
| if err := hdwr.PlayState(st); err != nil { | ||
| return err | ||
| } | ||
|
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| // print state | ||
| fmt.Printf("#%d: Set %s to Color: %s\n", index+1, led, util.FormatNamedColor(cl)) | ||
|
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| // wait for next blink | ||
| time.Sleep(blinkTimeDur) | ||
| return nil | ||
| } | ||
|
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| // let blink(1) blink | ||
| for i := 0; i < int(blinkTimes); i++ { | ||
| // parse color | ||
| raw := colorRaw[i%len(colorRaw)] | ||
| cl, err := exchange.ParseColor(raw) | ||
| if err != nil { | ||
| return fmt.Errorf("%w: %q", err, raw) | ||
| } | ||
|
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| // can't be off | ||
| if cl == b1.ColorBlack { | ||
| return fmt.Errorf("blink(1) can't blink to off") | ||
| } | ||
|
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| // blink on | ||
| if err := performColorChange(i, cl); err != nil { | ||
| return err | ||
| } | ||
|
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| // blink off | ||
| if err := performColorChange(i, b1.ColorBlack); err != nil { | ||
| return err | ||
| } | ||
| } | ||
|
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| // stop playing | ||
| // TODO: handle Ctrl+C | ||
| return hdwr.StopPlaying() | ||
| }, | ||
| } | ||
|
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| var ( | ||
| blinkTimeDur time.Duration | ||
| blinkLedNum uint | ||
| blinkTimes uint | ||
| ) | ||
|
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| func init() { | ||
| rootCmd.AddCommand(blinkCmd) | ||
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| // Here you will define your flags and configuration settings. | ||
| // Cobra supports Persistent Flags which will work for this command and all subcommands, e.g.: | ||
| // blinkCmd.PersistentFlags().String("foo", "", "A help for foo") | ||
| blinkCmd.PersistentFlags().DurationVarP(&blinkTimeDur, "blink-time", "m", 200*time.Millisecond, "duration of blink on/off") | ||
| blinkCmd.PersistentFlags().UintVarP(&blinkLedNum, "led", "l", 0, "which led number to blink, 0=all/1=top/2=bottom (mk2+)") | ||
| blinkCmd.PersistentFlags().UintVarP(&blinkTimes, "times", "t", 5, "how many times to blink") | ||
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| // Cobra supports local flags which will only run when this command is called directly, e.g.: | ||
| // blinkCmd.Flags().BoolP("toggle", "t", false, "Help message for toggle") | ||
| } |
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