forked from Mirrors/bubbletea
67 lines
1.0 KiB
Go
67 lines
1.0 KiB
Go
package main
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// A simple program that counts down from 5 and then exits.
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import (
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"fmt"
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"log"
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"time"
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"github.com/charmbracelet/boba"
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)
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type model int
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type tickMsg time.Time
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func main() {
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boba.AltScreen()
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defer boba.ExitAltScreen()
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err := boba.NewProgram(initialize, update, view).Start()
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if err != nil {
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log.Fatal(err)
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}
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}
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func initialize() (boba.Model, boba.Cmd) {
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return model(5), tick()
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}
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func update(message boba.Msg, mdl boba.Model) (boba.Model, boba.Cmd) {
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m, _ := mdl.(model)
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switch msg := message.(type) {
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case boba.KeyMsg:
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switch msg.String() {
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case "ctrl+c":
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fallthrough
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case "esc":
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fallthrough
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case "q":
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return m, boba.Quit
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}
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case tickMsg:
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m -= 1
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if m <= 0 {
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return m, boba.Quit
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}
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return m, tick()
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}
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return m, nil
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}
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func view(mdl boba.Model) string {
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m, _ := mdl.(model)
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return fmt.Sprintf("\n\n Hi. This program will exit in %d seconds...", m)
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}
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func tick() boba.Cmd {
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return boba.Tick(time.Second, func(t time.Time) boba.Msg {
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return tickMsg(t)
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})
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}
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