Paginator

package main

import (
    "fmt"
    "github.com/charmbracelet/bubbles/v2/paginator"
    tea "github.com/charmbracelet/bubbletea/v2"
)

type model struct {
    items     []string
    paginator paginator.Model
}

func newModel() model {
    // 1. Create dummy items
    var items []string
    for i := 1; i < 101; i++ {
        items = append(items, fmt.Sprintf("Item %d", i))
    }

    // 2. Setup paginator
    p := paginator.New()
    p.Type = paginator.Dots
    p.PerPage = 5
    p.SetTotalPages(len(items))

    return model{
        paginator: p,
        items:     items,
    }
}

func (m model) Init() tea.Cmd {
    return nil
}

func (m model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
    var cmd tea.Cmd
    switch msg := msg.(type) {
    case tea.KeyPressMsg:
        if msg.String() == "q" {
            return m, tea.Quit
        }
    }
    
    // 3. Update logic handles keypresses (h/l, arrows)
    m.paginator, cmd = m.paginator.Update(msg)
    return m, cmd
}

func (m model) View() string {
    // 4. Get the slice bounds for the current page
    start, end := m.paginator.GetSliceBounds(len(m.items))
    
    s := "\n"
    for _, item := range m.items[start:end] {
        s += "  • " + item + "\n"
    }
    
    s += "\n  " + m.paginator.View() // Render dots
    s += "\n\n  ←/→ page • q: quit\n"
    return s
}

func main() {
    tea.NewProgram(newModel()).Run()
}