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package loadscreen
import (
"time"
"github.com/charmbracelet/bubbles/spinner"
tea "github.com/charmbracelet/bubbletea"
"github.com/charmbracelet/lipgloss"
"github.com/kyren223/eko/internal/client/ui"
"github.com/kyren223/eko/pkg/assert"
)
var (
style = lipgloss.NewStyle().Border(lipgloss.ThickBorder()).Padding(1, 3).MarginTop(2)
loadingFrames = circleTrail(4, 4, 0, true, " ", "░░", "▒▒", "▓▓", "██")
loading = spinner.Spinner{
Frames: loadingFrames,
FPS: time.Second / time.Duration(len(loadingFrames)),
}
)
func circleTrail(width int, height int, offset int, clockwise bool, bg string, trail ...string) (states []string) {
slots := (width+height)*2 - 4
slotWidth := lipgloss.Width(bg)
slotHeight := lipgloss.Height(bg)
assert.Assert(slots-len(trail) >= 0, "not enough space to fit trail")
assert.AddData("slotWidth", slotWidth)
assert.AddData("slotHeight", slotHeight)
defer assert.RemoveData("slotWidth")
defer assert.RemoveData("slotHeight")
for _, elem := range trail {
w := lipgloss.Width(elem)
h := lipgloss.Height(elem)
assert.AddData("elemWidth", w)
assert.AddData("elemHeight", h)
assert.Assert(slotWidth == w, "bg and all trails must have the same height")
assert.Assert(slotHeight == h, "bg and all trails must have the same height")
assert.RemoveData("elemWidth")
assert.RemoveData("elemHeight")
}
matrix := make([][]string, height)
for i := range matrix {
matrix[i] = make([]string, width)
}
for i := 0; i < slots; i++ {
for y := range matrix {
for x := range matrix[y] {
matrix[y][x] = bg
}
}
x, y := 0, 0
for j := 0; j < i+offset; j++ {
if clockwise {
if y == 0 && x != width-1 {
x++
} else if x == width-1 && y != height-1 {
y++
} else if y == height-1 && x != 0 {
x--
} else if x == 0 && y != 0 {
y--
}
} else {
if x == 0 && y != height-1 {
y++
} else if y == height-1 && x != width-1 {
x++
} else if x == width-1 && y != 0 {
y--
} else if y == 0 && x != 0 {
x--
}
}
}
for _, trail := range trail {
matrix[y][x] = trail
if clockwise {
if y == 0 && x != width-1 {
x++
} else if x == width-1 && y != height-1 {
y++
} else if y == height-1 && x != 0 {
x--
} else if x == 0 && y != 0 {
y--
}
} else {
if x == 0 && y != height-1 {
y++
} else if y == height-1 && x != width-1 {
x++
} else if x == width-1 && y != 0 {
y--
} else if y == 0 && x != 0 {
x--
}
}
}
var rows []string
for _, row := range matrix {
rows = append(rows, lipgloss.JoinHorizontal(0, row...))
}
state := lipgloss.JoinVertical(0, rows...)
states = append(states, state)
}
return states
}
type Updater func(msg tea.Msg) tea.Cmd
type Model struct {
sp spinner.Model
content string
updater Updater
}
func New(content string, updater Updater) Model {
width := lipgloss.Width(content)
height := lipgloss.Height(content)
content = lipgloss.NewStyle().Width(width).Height(height).Render(content)
return Model{
sp: spinner.New(spinner.WithSpinner(loading)),
content: style.Render(content),
}
}
func (m Model) Init() tea.Cmd {
return m.sp.Tick
}
func (m Model) View() string {
return lipgloss.Place(
ui.Width, ui.Height,
lipgloss.Center, lipgloss.Center,
lipgloss.JoinVertical(lipgloss.Center, m.sp.View(), m.content),
)
}
func (m Model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
switch msg := msg.(type) {
case tea.KeyMsg:
key := msg.Type
switch key {
case tea.KeyCtrlC:
return m, tea.Quit
}
case spinner.TickMsg:
var cmd tea.Cmd
m.sp, cmd = m.sp.Update(msg)
return m, cmd
}
return m, m.updater(msg)
}
|
