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|
package filter
import (
"errors"
"fmt"
"os"
"slices"
"strings"
"github.com/charmbracelet/bubbles/help"
"github.com/charmbracelet/bubbles/textinput"
"github.com/charmbracelet/bubbles/viewport"
tea "github.com/charmbracelet/bubbletea"
"github.com/charmbracelet/gum/internal/files"
"github.com/charmbracelet/gum/internal/stdin"
"github.com/charmbracelet/gum/internal/timeout"
"github.com/charmbracelet/gum/internal/tty"
"github.com/charmbracelet/gum/style"
"github.com/charmbracelet/x/ansi"
"github.com/sahilm/fuzzy"
)
// Run provides a shell script interface for filtering through options, powered
// by the textinput bubble.
func (o Options) Run() error {
i := textinput.New()
i.Focus()
i.Prompt = o.Prompt
i.PromptStyle = o.PromptStyle.ToLipgloss()
i.PlaceholderStyle = o.PlaceholderStyle.ToLipgloss()
i.Placeholder = o.Placeholder
i.Width = o.Width
v := viewport.New(o.Width, o.Height)
if len(o.Options) == 0 {
if input, _ := stdin.Read(stdin.StripANSI(o.StripANSI)); input != "" {
o.Options = strings.Split(input, o.InputDelimiter)
} else {
o.Options = files.List()
}
}
if len(o.Options) == 0 {
return errors.New("no options provided, see `gum filter --help`")
}
ctx, cancel := timeout.Context(o.Timeout)
defer cancel()
options := []tea.ProgramOption{
tea.WithOutput(os.Stderr),
tea.WithReportFocus(),
tea.WithContext(ctx),
}
if o.Height == 0 {
options = append(options, tea.WithAltScreen())
}
var matches []fuzzy.Match
if o.Value != "" {
i.SetValue(o.Value)
}
choices := map[string]string{}
filteringChoices := []string{}
for _, opt := range o.Options {
s := ansi.Strip(opt)
choices[s] = opt
filteringChoices = append(filteringChoices, s)
}
switch {
case o.Value != "" && o.Fuzzy:
matches = fuzzy.Find(o.Value, filteringChoices)
case o.Value != "" && !o.Fuzzy:
matches = exactMatches(o.Value, filteringChoices)
default:
matches = matchAll(filteringChoices)
}
if o.NoLimit {
o.Limit = len(o.Options)
}
if o.SelectIfOne && len(matches) == 1 {
tty.Println(matches[0].Str)
return nil
}
km := defaultKeymap()
if o.NoLimit || o.Limit > 1 {
km.Toggle.SetEnabled(true)
km.ToggleAndPrevious.SetEnabled(true)
km.ToggleAndNext.SetEnabled(true)
km.ToggleAll.SetEnabled(true)
}
top, right, bottom, left := style.ParsePadding(o.Padding)
m := model{
choices: choices,
filteringChoices: filteringChoices,
indicator: o.Indicator,
matches: matches,
header: o.Header,
textinput: i,
viewport: &v,
indicatorStyle: o.IndicatorStyle.ToLipgloss(),
selectedPrefixStyle: o.SelectedPrefixStyle.ToLipgloss(),
selectedPrefix: o.SelectedPrefix,
unselectedPrefixStyle: o.UnselectedPrefixStyle.ToLipgloss(),
unselectedPrefix: o.UnselectedPrefix,
matchStyle: o.MatchStyle.ToLipgloss(),
headerStyle: o.HeaderStyle.ToLipgloss(),
textStyle: o.TextStyle.ToLipgloss(),
cursorTextStyle: o.CursorTextStyle.ToLipgloss(),
height: o.Height,
padding: []int{top, right, bottom, left},
selected: make(map[string]struct{}),
limit: o.Limit,
reverse: o.Reverse,
fuzzy: o.Fuzzy,
sort: o.Sort && o.FuzzySort,
strict: o.Strict,
showHelp: o.ShowHelp,
keymap: km,
help: help.New(),
}
isSelectAll := len(o.Selected) == 1 && o.Selected[0] == "*"
currentSelected := 0
if len(o.Selected) > 0 {
for i, option := range matches {
if currentSelected >= o.Limit || (!isSelectAll && !slices.Contains(o.Selected, option.Str)) {
continue
}
if o.Limit == 1 {
m.cursor = i
m.selected[option.Str] = struct{}{}
} else {
currentSelected++
m.selected[option.Str] = struct{}{}
}
}
}
tm, err := tea.NewProgram(m, options...).Run()
if err != nil {
return fmt.Errorf("unable to run filter: %w", err)
}
m = tm.(model)
if !m.submitted {
return errors.New("nothing selected")
}
// allSelections contains values only if limit is greater
// than 1 or if flag --no-limit is passed, hence there is
// no need to further checks
if len(m.selected) > 0 {
o.checkSelected(m)
} else if len(m.matches) > m.cursor && m.cursor >= 0 {
tty.Println(m.matches[m.cursor].Str)
}
return nil
}
func (o Options) checkSelected(m model) {
out := []string{}
for k := range m.selected {
out = append(out, k)
}
tty.Println(strings.Join(out, o.OutputDelimiter))
}
|
