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package main
import (
"encoding/csv"
"fmt"
"os"
"os/exec"
"strings"
"time"
"charm.land/bubbles/v2/viewport"
tea "charm.land/bubbletea/v2"
)
type model struct {
choices [][]string
cursor int
selected map[int]struct{}
ready bool
viewport viewport.Model
}
func listModel(arg string) model {
out, err := exec.Command("hugo", "list", arg).Output()
if err != nil {
println("Error fetching Hugo drafts: Is this a Hugo site? Is Hugo installed?")
os.Exit(1)
}
csvReader := csv.NewReader(strings.NewReader(string(out)))
records, err := csvReader.ReadAll()
if err != nil {
println("Error parsing draft list.")
os.Exit(1)
}
if len(records) <= 1 {
println("No drafts found.")
os.Exit(1)
}
// remove the table head row
records = records[1:]
return model{
choices: records,
selected: make(map[int]struct{}),
}
}
func (m model) Init() tea.Cmd {
return nil
}
func (m model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
var (
cmd tea.Cmd
cmds []tea.Cmd
)
switch msg := msg.(type) {
case tea.KeyPressMsg:
switch msg.String() {
case "ctrl+c", "q", "esc":
return m, tea.Quit
case "k":
if m.cursor > 0 {
m.cursor--
m.viewport.SetContent(m.buildContent())
}
return m, nil
case "j":
if m.cursor < len(m.choices)-1 {
m.cursor++
m.viewport.SetContent(m.buildContent())
}
return m, nil
case "enter":
choice := m.choices[m.cursor]
path := choice[0]
return m, openEditor(path)
case "space":
_, ok := m.selected[m.cursor]
if ok {
delete(m.selected, m.cursor)
} else {
m.selected[m.cursor] = struct{}{}
}
m.viewport.SetContent(m.buildContent())
return m, nil
}
case tea.WindowSizeMsg:
headerHeight := 1
footerHeight := 1
verticalMarginHeight := headerHeight + footerHeight
if !m.ready {
m.viewport = viewport.New(viewport.WithWidth(msg.Width), viewport.WithHeight(msg.Height-verticalMarginHeight))
m.viewport.YPosition = headerHeight
m.viewport.SetContent(m.buildContent())
m.ready = true
} else {
m.viewport.SetWidth(msg.Width)
m.viewport.SetHeight(msg.Height - verticalMarginHeight)
}
case editorFinishedMsg:
return m, tea.Quit
}
m.viewport, cmd = m.viewport.Update(msg)
cmds = append(cmds, cmd)
return m, tea.Batch(cmds...)
}
func max(a, b int) int {
if a > b {
return a
}
return b
}
func (m model) buildContent() string {
var s strings.Builder
for i, choice := range m.choices {
cursor := " " // no cursor
if m.cursor == i {
cursor = ">"
}
checked := " " // not checked
if _, ok := m.selected[i]; ok {
checked = "x"
}
title := choice[2]
t, err := time.Parse(time.RFC3339, choice[3])
if err != nil {
continue
}
datetime := t.Format("2006-01-02 15:04")
s.WriteString(fmt.Sprintf("%s [%s] %s \t %s\n", cursor, checked, datetime, title))
}
return s.String()
}
func (m model) headerView() string {
title := fmt.Sprintf("Hugo Content Manager (%d items)", len(m.choices))
line := strings.Repeat("─", max(0, m.viewport.Width()-len(title)))
return title + line
}
func (m model) footerView() string {
help := "[q] quit | [Enter] edit | [SPACE] select | [j/k] cursor | [↑/↓] scroll"
line := strings.Repeat("─", max(0, m.viewport.Width()-len(help)))
return line + help
}
func (m model) View() tea.View {
if !m.ready {
return tea.NewView("\n Initializing...")
}
return tea.NewView(fmt.Sprintf("%s\n%s\n%s", m.headerView(), m.viewport.View(), m.footerView()))
}
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