mirror of
https://github.com/antonmedv/fx
synced 2024-11-15 12:13:06 +00:00
912 lines
18 KiB
Go
912 lines
18 KiB
Go
package model
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import (
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"encoding/json"
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"fmt"
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"io"
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"regexp"
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"strconv"
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"strings"
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"github.com/atotto/clipboard"
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"github.com/sahilm/fuzzy"
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jsonpath "github.com/antonmedv/fx/path"
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"github.com/charmbracelet/bubbles/key"
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"github.com/charmbracelet/bubbles/textinput"
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tea "github.com/charmbracelet/bubbletea"
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"github.com/charmbracelet/lipgloss"
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)
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// Config for model.
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type Config struct {
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Source io.Reader
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FileName string
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}
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// New creates a new application model.
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func New(cfg Config) (*model, error) {
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data, err := io.ReadAll(cfg.Source)
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if err != nil {
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panic(err)
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}
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head, err := parse(data)
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if err != nil {
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return nil, fmt.Errorf("parsing: %w", err)
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}
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digInput := textinput.New()
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digInput.Prompt = ""
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digInput.TextStyle = lipgloss.NewStyle().
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Background(lipgloss.Color("7")).
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Foreground(lipgloss.Color("0"))
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digInput.Cursor.Style = lipgloss.NewStyle().
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Background(lipgloss.Color("15")).
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Foreground(lipgloss.Color("0"))
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searchInput := textinput.New()
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searchInput.Prompt = "/"
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m := &model{
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head: head,
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top: head,
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showCursor: true,
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wrap: true,
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fileName: cfg.FileName,
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digInput: digInput,
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searchInput: searchInput,
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search: newSearch(),
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}
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return m, nil
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}
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type model struct {
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termWidth, termHeight int
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head, top *node
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cursor int // cursor position [0, termHeight)
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showCursor bool
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wrap bool
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margin int
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fileName string
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digInput textinput.Model
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searchInput textinput.Model
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search *search
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yank bool
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}
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func (m *model) Init() tea.Cmd {
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return nil
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}
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func (m *model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
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switch msg := msg.(type) {
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case tea.WindowSizeMsg:
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m.termWidth = msg.Width
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m.termHeight = msg.Height
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wrapAll(m.top, m.termWidth)
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m.redoSearch()
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case tea.MouseMsg:
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switch msg.Type {
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case tea.MouseWheelUp:
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m.up()
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case tea.MouseWheelDown:
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m.down()
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case tea.MouseLeft:
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m.digInput.Blur()
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m.showCursor = true
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if msg.Y < m.viewHeight() {
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if m.cursor == msg.Y {
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to := m.cursorPointsTo()
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if to != nil {
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if to.isCollapsed() {
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to.expand()
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} else {
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to.collapse()
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}
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}
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} else {
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to := m.at(msg.Y)
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if to != nil {
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m.cursor = msg.Y
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if to.isCollapsed() {
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to.expand()
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}
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}
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}
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}
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}
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case tea.KeyMsg:
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if m.digInput.Focused() {
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return m.handleDigKey(msg)
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}
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if m.searchInput.Focused() {
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return m.handleSearchKey(msg)
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}
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if m.yank {
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return m.handleYankKey(msg)
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}
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return m.handleKey(msg)
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}
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return m, nil
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}
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func (m *model) handleDigKey(msg tea.KeyMsg) (tea.Model, tea.Cmd) {
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var cmd tea.Cmd
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switch {
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case key.Matches(msg, arrowUp):
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m.up()
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m.digInput.SetValue(m.cursorPath())
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m.digInput.CursorEnd()
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case key.Matches(msg, arrowDown):
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m.down()
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m.digInput.SetValue(m.cursorPath())
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m.digInput.CursorEnd()
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case msg.Type == tea.KeyEscape:
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m.digInput.Blur()
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case msg.Type == tea.KeyTab:
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m.digInput.SetValue(m.cursorPath())
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m.digInput.CursorEnd()
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case msg.Type == tea.KeyEnter:
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m.digInput.Blur()
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digPath, ok := jsonpath.Split(m.digInput.Value())
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if ok {
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n := m.selectByPath(digPath)
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if n != nil {
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m.selectNode(n)
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}
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}
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case key.Matches(msg, key.NewBinding(key.WithKeys("ctrl+w"))):
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digPath, ok := jsonpath.Split(m.digInput.Value())
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if ok {
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if len(digPath) > 0 {
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digPath = digPath[:len(digPath)-1]
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}
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n := m.selectByPath(digPath)
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if n != nil {
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m.selectNode(n)
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m.digInput.SetValue(m.cursorPath())
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m.digInput.CursorEnd()
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}
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}
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case key.Matches(msg, textinput.DefaultKeyMap.WordBackward):
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value := m.digInput.Value()
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pth, ok := jsonpath.Split(value[0:m.digInput.Position()])
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if ok {
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if len(pth) > 0 {
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pth = pth[:len(pth)-1]
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m.digInput.SetCursor(len(jsonpath.Join(pth)))
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} else {
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m.digInput.CursorStart()
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}
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}
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case key.Matches(msg, textinput.DefaultKeyMap.WordForward):
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value := m.digInput.Value()
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fullPath, ok1 := jsonpath.Split(value)
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pth, ok2 := jsonpath.Split(value[0:m.digInput.Position()])
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if ok1 && ok2 {
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if len(pth) < len(fullPath) {
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pth = append(pth, fullPath[len(pth)])
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m.digInput.SetCursor(len(jsonpath.Join(pth)))
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} else {
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m.digInput.CursorEnd()
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}
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}
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default:
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if key.Matches(msg, key.NewBinding(key.WithKeys("."))) {
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if m.digInput.Position() == len(m.digInput.Value()) {
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m.digInput.SetValue(m.cursorPath())
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m.digInput.CursorEnd()
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}
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}
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m.digInput, cmd = m.digInput.Update(msg)
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n := m.dig(m.digInput.Value())
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if n != nil {
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m.selectNode(n)
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}
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}
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return m, cmd
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}
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func (m *model) handleSearchKey(msg tea.KeyMsg) (tea.Model, tea.Cmd) {
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var cmd tea.Cmd
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switch {
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case msg.Type == tea.KeyEscape:
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m.searchInput.Blur()
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m.searchInput.SetValue("")
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m.doSearch("")
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m.showCursor = true
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case msg.Type == tea.KeyEnter:
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m.searchInput.Blur()
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m.doSearch(m.searchInput.Value())
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default:
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m.searchInput, cmd = m.searchInput.Update(msg)
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}
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return m, cmd
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}
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func (m *model) handleYankKey(msg tea.KeyMsg) (tea.Model, tea.Cmd) {
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switch {
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case key.Matches(msg, yankPath):
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_ = clipboard.WriteAll(m.cursorPath())
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case key.Matches(msg, yankKey):
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_ = clipboard.WriteAll(m.cursorKey())
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case key.Matches(msg, yankValue):
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_ = clipboard.WriteAll(m.cursorValue())
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}
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m.yank = false
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return m, nil
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}
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func (m *model) handleKey(msg tea.KeyMsg) (tea.Model, tea.Cmd) {
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switch {
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case key.Matches(msg, keyMap.Quit):
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return m, tea.Quit
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case key.Matches(msg, keyMap.Up):
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m.up()
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case key.Matches(msg, keyMap.Down):
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m.down()
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case key.Matches(msg, keyMap.PageUp):
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m.cursor = 0
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for i := 0; i < m.viewHeight(); i++ {
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m.up()
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}
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case key.Matches(msg, keyMap.PageDown):
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m.cursor = m.viewHeight() - 1
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for i := 0; i < m.viewHeight(); i++ {
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m.down()
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}
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m.scrollIntoView()
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case key.Matches(msg, keyMap.HalfPageUp):
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m.cursor = 0
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for i := 0; i < m.viewHeight()/2; i++ {
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m.up()
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}
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case key.Matches(msg, keyMap.HalfPageDown):
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m.cursor = m.viewHeight() - 1
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for i := 0; i < m.viewHeight()/2; i++ {
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m.down()
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}
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m.scrollIntoView()
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case key.Matches(msg, keyMap.GotoTop):
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m.head = m.top
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m.cursor = 0
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m.showCursor = true
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case key.Matches(msg, keyMap.GotoBottom):
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m.head = m.findBottom()
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m.cursor = 0
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m.showCursor = true
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m.scrollIntoView()
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case key.Matches(msg, keyMap.NextSibling):
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pointsTo := m.cursorPointsTo()
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var nextSibling *node
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if pointsTo.end != nil && pointsTo.end.next != nil {
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nextSibling = pointsTo.end.next
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} else {
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nextSibling = pointsTo.next
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}
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if nextSibling != nil {
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m.selectNode(nextSibling)
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}
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case key.Matches(msg, keyMap.PrevSibling):
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pointsTo := m.cursorPointsTo()
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var prevSibling *node
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if pointsTo.parent() != nil && pointsTo.parent().end == pointsTo {
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prevSibling = pointsTo.parent()
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} else if pointsTo.prev != nil {
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prevSibling = pointsTo.prev
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parent := prevSibling.parent()
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if parent != nil && parent.end == prevSibling {
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prevSibling = parent
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}
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}
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if prevSibling != nil {
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m.selectNode(prevSibling)
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}
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case key.Matches(msg, keyMap.Collapse):
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n := m.cursorPointsTo()
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if n.hasChildren() && !n.isCollapsed() {
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n.collapse()
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} else {
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if n.parent() != nil {
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n = n.parent()
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}
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}
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m.selectNode(n)
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case key.Matches(msg, keyMap.Expand):
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m.cursorPointsTo().expand()
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m.showCursor = true
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case key.Matches(msg, keyMap.CollapseRecursively):
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n := m.cursorPointsTo()
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if n.hasChildren() {
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n.collapseRecursively()
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}
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m.showCursor = true
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case key.Matches(msg, keyMap.ExpandRecursively):
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n := m.cursorPointsTo()
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if n.hasChildren() {
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n.expandRecursively()
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}
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m.showCursor = true
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case key.Matches(msg, keyMap.CollapseAll):
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m.top.collapseRecursively()
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m.cursor = 0
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m.head = m.top
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m.showCursor = true
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case key.Matches(msg, keyMap.ExpandAll):
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at := m.cursorPointsTo()
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m.top.expandRecursively()
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m.selectNode(at)
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case key.Matches(msg, keyMap.ToggleWrap):
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at := m.cursorPointsTo()
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m.wrap = !m.wrap
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if m.wrap {
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wrapAll(m.top, m.termWidth)
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} else {
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dropWrapAll(m.top)
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}
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if at.chunk != nil && at.value == nil {
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at = at.parent()
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}
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m.redoSearch()
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m.selectNode(at)
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case key.Matches(msg, keyMap.Yank):
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m.yank = true
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case key.Matches(msg, keyMap.Dig):
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m.digInput.SetValue(m.cursorPath() + ".")
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m.digInput.CursorEnd()
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m.digInput.Width = m.termWidth - 1
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m.digInput.Focus()
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case key.Matches(msg, keyMap.Search):
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m.searchInput.CursorEnd()
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m.searchInput.Width = m.termWidth - 2 // -1 for the prompt, -1 for the cursor
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m.searchInput.Focus()
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case key.Matches(msg, keyMap.SearchNext):
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m.selectSearchResult(m.search.cursor + 1)
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case key.Matches(msg, keyMap.SearchPrev):
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m.selectSearchResult(m.search.cursor - 1)
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}
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return m, nil
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}
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func (m *model) up() {
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m.showCursor = true
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m.cursor--
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if m.cursor < 0 {
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m.cursor = 0
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if m.head.prev != nil {
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m.head = m.head.prev
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}
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}
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}
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func (m *model) down() {
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m.showCursor = true
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m.cursor++
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n := m.cursorPointsTo()
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if n == nil {
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m.cursor--
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return
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}
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if m.cursor >= m.viewHeight() {
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m.cursor = m.viewHeight() - 1
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if m.head.next != nil {
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m.head = m.head.next
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}
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}
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}
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func (m *model) visibleLines() int {
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visibleLines := 0
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n := m.head
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for n != nil && visibleLines < m.viewHeight() {
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visibleLines++
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n = n.next
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}
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return visibleLines
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}
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func (m *model) scrollIntoView() {
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visibleLines := m.visibleLines()
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if m.cursor >= visibleLines {
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m.cursor = visibleLines - 1
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}
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for visibleLines < m.viewHeight() && m.head.prev != nil {
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visibleLines++
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m.cursor++
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m.head = m.head.prev
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}
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}
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func (m *model) View() string {
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var screen []byte
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n := m.head
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printedLines := 0
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for lineNumber := 0; lineNumber < m.viewHeight(); lineNumber++ {
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if n == nil {
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break
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}
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for ident := 0; ident < int(n.depth); ident++ {
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screen = append(screen, ' ', ' ')
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}
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isSelected := m.cursor == lineNumber
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if !m.showCursor {
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isSelected = false // don't highlight the cursor while iterating search results
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}
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if n.key != nil {
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screen = append(screen, m.prettyKey(n, isSelected)...)
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screen = append(screen, colon...)
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isSelected = false // don't highlight the key's value
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}
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screen = append(screen, m.prettyPrint(n, isSelected)...)
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if n.isCollapsed() {
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if n.value[0] == '{' {
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if n.collapsed.key != nil {
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screen = append(screen, currentTheme.Preview(n.collapsed.key)...)
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screen = append(screen, colonPreview...)
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}
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screen = append(screen, dot3...)
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screen = append(screen, closeCurlyBracket...)
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} else if n.value[0] == '[' {
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screen = append(screen, dot3...)
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screen = append(screen, closeSquareBracket...)
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}
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if n.end != nil && n.end.comma {
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screen = append(screen, comma...)
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}
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}
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if n.comma {
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screen = append(screen, comma...)
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}
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screen = append(screen, '\n')
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printedLines++
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n = n.next
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}
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for i := printedLines; i < m.viewHeight(); i++ {
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screen = append(screen, empty...)
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screen = append(screen, '\n')
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}
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if m.digInput.Focused() {
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screen = append(screen, m.digInput.View()...)
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} else {
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statusBar := flex(m.termWidth, m.cursorPath(), m.fileName)
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screen = append(screen, currentTheme.StatusBar([]byte(statusBar))...)
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}
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if m.yank {
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screen = append(screen, '\n')
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screen = append(screen, []byte("(y)value (p)path (k)key")...)
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} else if m.searchInput.Focused() {
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screen = append(screen, '\n')
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screen = append(screen, m.searchInput.View()...)
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} else if m.searchInput.Value() != "" {
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screen = append(screen, '\n')
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re, ci := regexCase(m.searchInput.Value())
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re = "/" + re + "/"
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if ci {
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re += "i"
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}
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if m.search.err != nil {
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screen = append(screen, flex(m.termWidth, re, m.search.err.Error())...)
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} else if len(m.search.results) == 0 {
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screen = append(screen, flex(m.termWidth, re, "not found")...)
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} else {
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cursor := fmt.Sprintf("found: [%v/%v]", m.search.cursor+1, len(m.search.results))
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screen = append(screen, flex(m.termWidth, re, cursor)...)
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}
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}
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return string(screen)
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}
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func (m *model) prettyKey(node *node, selected bool) []byte {
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b := node.key
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style := currentTheme.Key
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if selected {
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style = currentTheme.Cursor
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}
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if indexes, ok := m.search.keys[node]; ok {
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var out []byte
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for i, p := range splitBytesByIndexes(b, indexes) {
|
|
if i%2 == 0 {
|
|
out = append(out, style(p.b)...)
|
|
} else if p.index == m.search.cursor {
|
|
out = append(out, currentTheme.Cursor(p.b)...)
|
|
} else {
|
|
out = append(out, currentTheme.Search(p.b)...)
|
|
}
|
|
}
|
|
return out
|
|
} else {
|
|
return style(b)
|
|
}
|
|
}
|
|
|
|
func (m *model) prettyPrint(node *node, selected bool) []byte {
|
|
var b []byte
|
|
if node.chunk != nil {
|
|
b = node.chunk
|
|
} else {
|
|
b = node.value
|
|
}
|
|
|
|
if len(b) == 0 {
|
|
return b
|
|
}
|
|
|
|
style := valueStyle(b, selected, node.chunk != nil)
|
|
|
|
if indexes, ok := m.search.values[node]; ok {
|
|
var out []byte
|
|
for i, p := range splitBytesByIndexes(b, indexes) {
|
|
if i%2 == 0 {
|
|
out = append(out, style(p.b)...)
|
|
} else if p.index == m.search.cursor {
|
|
out = append(out, currentTheme.Cursor(p.b)...)
|
|
} else {
|
|
out = append(out, currentTheme.Search(p.b)...)
|
|
}
|
|
}
|
|
return out
|
|
} else {
|
|
return style(b)
|
|
}
|
|
}
|
|
|
|
func (m *model) viewHeight() int {
|
|
if m.searchInput.Focused() || m.searchInput.Value() != "" {
|
|
return m.termHeight - 2
|
|
}
|
|
if m.yank {
|
|
return m.termHeight - 2
|
|
}
|
|
return m.termHeight - 1
|
|
}
|
|
|
|
func (m *model) cursorPointsTo() *node {
|
|
return m.at(m.cursor)
|
|
}
|
|
|
|
func (m *model) at(pos int) *node {
|
|
head := m.head
|
|
for i := 0; i < pos; i++ {
|
|
if head == nil {
|
|
break
|
|
}
|
|
head = head.next
|
|
}
|
|
return head
|
|
}
|
|
|
|
func (m *model) findBottom() *node {
|
|
n := m.head
|
|
for n.next != nil {
|
|
if n.end != nil {
|
|
n = n.end
|
|
} else {
|
|
n = n.next
|
|
}
|
|
}
|
|
return n
|
|
}
|
|
|
|
func (m *model) nodeInsideView(n *node) bool {
|
|
if n == nil {
|
|
return false
|
|
}
|
|
head := m.head
|
|
for i := 0; i < m.viewHeight(); i++ {
|
|
if head == nil {
|
|
break
|
|
}
|
|
if head == n {
|
|
return true
|
|
}
|
|
head = head.next
|
|
}
|
|
return false
|
|
}
|
|
|
|
func (m *model) selectNodeInView(n *node) {
|
|
head := m.head
|
|
for i := 0; i < m.viewHeight(); i++ {
|
|
if head == nil {
|
|
break
|
|
}
|
|
if head == n {
|
|
m.cursor = i
|
|
return
|
|
}
|
|
head = head.next
|
|
}
|
|
}
|
|
|
|
func (m *model) selectNode(n *node) {
|
|
m.showCursor = true
|
|
if m.nodeInsideView(n) {
|
|
m.selectNodeInView(n)
|
|
m.scrollIntoView()
|
|
} else {
|
|
m.cursor = 0
|
|
m.head = n
|
|
m.scrollIntoView()
|
|
}
|
|
parent := n.parent()
|
|
for parent != nil {
|
|
parent.expand()
|
|
parent = parent.parent()
|
|
}
|
|
}
|
|
|
|
func (m *model) cursorPath() string {
|
|
path := ""
|
|
at := m.cursorPointsTo()
|
|
for at != nil {
|
|
if at.prev != nil {
|
|
if at.chunk != nil && at.value == nil {
|
|
at = at.parent()
|
|
}
|
|
if at.key != nil {
|
|
quoted := string(at.key)
|
|
unquoted, err := strconv.Unquote(quoted)
|
|
if err == nil && jsonpath.Identifier.MatchString(unquoted) {
|
|
path = "." + unquoted + path
|
|
} else {
|
|
path = "[" + quoted + "]" + path
|
|
}
|
|
} else if at.index >= 0 {
|
|
path = "[" + strconv.Itoa(at.index) + "]" + path
|
|
}
|
|
}
|
|
at = at.parent()
|
|
}
|
|
return path
|
|
}
|
|
|
|
func (m *model) cursorValue() string {
|
|
at := m.cursorPointsTo()
|
|
if at == nil {
|
|
return ""
|
|
}
|
|
var out strings.Builder
|
|
if at.chunk != nil && at.value == nil {
|
|
at = at.parent()
|
|
}
|
|
out.Write(at.value)
|
|
if at.hasChildren() {
|
|
it := at.next
|
|
if at.isCollapsed() {
|
|
it = at.collapsed
|
|
}
|
|
for it != nil {
|
|
if it.key != nil {
|
|
out.Write(it.key)
|
|
out.WriteString(": ")
|
|
}
|
|
if it.chunk != nil {
|
|
out.Write(it.chunk)
|
|
} else {
|
|
out.Write(it.value)
|
|
}
|
|
if it == at.end {
|
|
break
|
|
}
|
|
if it.comma {
|
|
out.WriteString(", ")
|
|
}
|
|
if it.isCollapsed() {
|
|
it = it.collapsed
|
|
} else {
|
|
it = it.next
|
|
}
|
|
}
|
|
}
|
|
return out.String()
|
|
}
|
|
|
|
func (m *model) cursorKey() string {
|
|
at := m.cursorPointsTo()
|
|
if at == nil {
|
|
return ""
|
|
}
|
|
if at.key != nil {
|
|
var v string
|
|
_ = json.Unmarshal(at.key, &v)
|
|
return v
|
|
}
|
|
return strconv.Itoa(at.index)
|
|
}
|
|
|
|
func (m *model) selectByPath(path []any) *node {
|
|
n := m.top
|
|
for _, part := range path {
|
|
if n == nil {
|
|
return nil
|
|
}
|
|
switch part := part.(type) {
|
|
case string:
|
|
n = n.findChildByKey(part)
|
|
case int:
|
|
n = n.findChildByIndex(part)
|
|
}
|
|
}
|
|
return n
|
|
}
|
|
|
|
func (m *model) doSearch(s string) {
|
|
m.search = newSearch()
|
|
|
|
if s == "" {
|
|
return
|
|
}
|
|
|
|
code, ci := regexCase(s)
|
|
if ci {
|
|
code = "(?i)" + code
|
|
}
|
|
|
|
re, err := regexp.Compile(code)
|
|
if err != nil {
|
|
m.search.err = err
|
|
return
|
|
}
|
|
|
|
n := m.top
|
|
searchIndex := 0
|
|
for n != nil {
|
|
if n.key != nil {
|
|
indexes := re.FindAllIndex(n.key, -1)
|
|
if len(indexes) > 0 {
|
|
for i, pair := range indexes {
|
|
m.search.results = append(m.search.results, n)
|
|
m.search.keys[n] = append(m.search.keys[n], match{start: pair[0], end: pair[1], index: searchIndex + i})
|
|
}
|
|
searchIndex += len(indexes)
|
|
}
|
|
}
|
|
indexes := re.FindAllIndex(n.value, -1)
|
|
if len(indexes) > 0 {
|
|
for range indexes {
|
|
m.search.results = append(m.search.results, n)
|
|
}
|
|
if n.chunk != nil {
|
|
// String can be split into chunks, so we need to map the indexes to the chunks.
|
|
chunks := [][]byte{n.chunk}
|
|
chunkNodes := []*node{n}
|
|
|
|
it := n.next
|
|
for it != nil {
|
|
chunkNodes = append(chunkNodes, it)
|
|
chunks = append(chunks, it.chunk)
|
|
if it == n.chunkEnd {
|
|
break
|
|
}
|
|
it = it.next
|
|
}
|
|
|
|
chunkMatches := splitIndexesToChunks(chunks, indexes, searchIndex)
|
|
for i, matches := range chunkMatches {
|
|
m.search.values[chunkNodes[i]] = matches
|
|
}
|
|
} else {
|
|
for i, pair := range indexes {
|
|
m.search.values[n] = append(m.search.values[n], match{start: pair[0], end: pair[1], index: searchIndex + i})
|
|
}
|
|
}
|
|
searchIndex += len(indexes)
|
|
}
|
|
|
|
if n.isCollapsed() {
|
|
n = n.collapsed
|
|
} else {
|
|
n = n.next
|
|
}
|
|
}
|
|
|
|
m.selectSearchResult(0)
|
|
}
|
|
|
|
func (m *model) selectSearchResult(i int) {
|
|
if len(m.search.results) == 0 {
|
|
return
|
|
}
|
|
if i < 0 {
|
|
i = len(m.search.results) - 1
|
|
}
|
|
if i >= len(m.search.results) {
|
|
i = 0
|
|
}
|
|
m.search.cursor = i
|
|
result := m.search.results[i]
|
|
m.selectNode(result)
|
|
m.showCursor = false
|
|
}
|
|
|
|
func (m *model) redoSearch() {
|
|
if m.searchInput.Value() != "" && len(m.search.results) > 0 {
|
|
cursor := m.search.cursor
|
|
m.doSearch(m.searchInput.Value())
|
|
m.selectSearchResult(cursor)
|
|
}
|
|
}
|
|
|
|
func (m *model) dig(v string) *node {
|
|
p, ok := jsonpath.Split(v)
|
|
if !ok {
|
|
return nil
|
|
}
|
|
at := m.selectByPath(p)
|
|
if at != nil {
|
|
return at
|
|
}
|
|
|
|
lastPart := p[len(p)-1]
|
|
searchTerm, ok := lastPart.(string)
|
|
if !ok {
|
|
return nil
|
|
}
|
|
p = p[:len(p)-1]
|
|
|
|
at = m.selectByPath(p)
|
|
if at == nil {
|
|
return nil
|
|
}
|
|
|
|
keys, nodes := at.children()
|
|
|
|
matches := fuzzy.Find(searchTerm, keys)
|
|
if len(matches) == 0 {
|
|
return nil
|
|
}
|
|
|
|
return nodes[matches[0].Index]
|
|
}
|