tui.go

  1package tui
  2
  3import (
  4	"github.com/charmbracelet/bubbles/key"
  5	tea "github.com/charmbracelet/bubbletea"
  6	"github.com/charmbracelet/lipgloss"
  7	"github.com/kujtimiihoxha/termai/internal/app"
  8	"github.com/kujtimiihoxha/termai/internal/permission"
  9	"github.com/kujtimiihoxha/termai/internal/pubsub"
 10	"github.com/kujtimiihoxha/termai/internal/tui/components/core"
 11	"github.com/kujtimiihoxha/termai/internal/tui/components/dialog"
 12	"github.com/kujtimiihoxha/termai/internal/tui/components/repl"
 13	"github.com/kujtimiihoxha/termai/internal/tui/layout"
 14	"github.com/kujtimiihoxha/termai/internal/tui/page"
 15	"github.com/kujtimiihoxha/termai/internal/tui/util"
 16	"github.com/kujtimiihoxha/vimtea"
 17)
 18
 19type keyMap struct {
 20	Logs   key.Binding
 21	Return key.Binding
 22	Back   key.Binding
 23	Quit   key.Binding
 24	Help   key.Binding
 25}
 26
 27var keys = keyMap{
 28	Logs: key.NewBinding(
 29		key.WithKeys("L"),
 30		key.WithHelp("L", "logs"),
 31	),
 32	Return: key.NewBinding(
 33		key.WithKeys("esc"),
 34		key.WithHelp("esc", "close"),
 35	),
 36	Back: key.NewBinding(
 37		key.WithKeys("backspace"),
 38		key.WithHelp("backspace", "back"),
 39	),
 40	Quit: key.NewBinding(
 41		key.WithKeys("ctrl+c", "q"),
 42		key.WithHelp("ctrl+c/q", "quit"),
 43	),
 44	Help: key.NewBinding(
 45		key.WithKeys("?"),
 46		key.WithHelp("?", "toggle help"),
 47	),
 48}
 49
 50var replKeyMap = key.NewBinding(
 51	key.WithKeys("N"),
 52	key.WithHelp("N", "new session"),
 53)
 54
 55type appModel struct {
 56	width, height int
 57	currentPage   page.PageID
 58	previousPage  page.PageID
 59	pages         map[page.PageID]tea.Model
 60	loadedPages   map[page.PageID]bool
 61	status        tea.Model
 62	help          core.HelpCmp
 63	dialog        core.DialogCmp
 64	app           *app.App
 65	dialogVisible bool
 66	editorMode    vimtea.EditorMode
 67	showHelp      bool
 68}
 69
 70func (a appModel) Init() tea.Cmd {
 71	cmd := a.pages[a.currentPage].Init()
 72	a.loadedPages[a.currentPage] = true
 73	return cmd
 74}
 75
 76func (a appModel) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
 77	switch msg := msg.(type) {
 78	case pubsub.Event[permission.PermissionRequest]:
 79		return a, dialog.NewPermissionDialogCmd(msg.Payload)
 80	case dialog.PermissionResponseMsg:
 81		switch msg.Action {
 82		case dialog.PermissionAllow:
 83			permission.Default.Grant(msg.Permission)
 84		case dialog.PermissionAllowForSession:
 85			permission.Default.GrantPersistant(msg.Permission)
 86		case dialog.PermissionDeny:
 87			permission.Default.Deny(msg.Permission)
 88		}
 89	case vimtea.EditorModeMsg:
 90		a.editorMode = msg.Mode
 91	case tea.WindowSizeMsg:
 92		var cmds []tea.Cmd
 93		msg.Height -= 1 // Make space for the status bar
 94		a.width, a.height = msg.Width, msg.Height
 95
 96		a.status, _ = a.status.Update(msg)
 97
 98		uh, _ := a.help.Update(msg)
 99		a.help = uh.(core.HelpCmp)
100
101		p, cmd := a.pages[a.currentPage].Update(msg)
102		cmds = append(cmds, cmd)
103		a.pages[a.currentPage] = p
104
105		d, cmd := a.dialog.Update(msg)
106		cmds = append(cmds, cmd)
107		a.dialog = d.(core.DialogCmp)
108
109		return a, tea.Batch(cmds...)
110	case core.DialogMsg:
111		d, cmd := a.dialog.Update(msg)
112		a.dialog = d.(core.DialogCmp)
113		a.dialogVisible = true
114		return a, cmd
115	case core.DialogCloseMsg:
116		d, cmd := a.dialog.Update(msg)
117		a.dialog = d.(core.DialogCmp)
118		a.dialogVisible = false
119		return a, cmd
120	case page.PageChangeMsg:
121		return a, a.moveToPage(msg.ID)
122	case util.InfoMsg:
123		a.status, _ = a.status.Update(msg)
124	case util.ErrorMsg:
125		a.status, _ = a.status.Update(msg)
126	case tea.KeyMsg:
127		if a.editorMode == vimtea.ModeNormal {
128			switch {
129			case key.Matches(msg, keys.Quit):
130				return a, dialog.NewQuitDialogCmd()
131			case key.Matches(msg, keys.Back):
132				if a.previousPage != "" {
133					return a, a.moveToPage(a.previousPage)
134				}
135			case key.Matches(msg, keys.Return):
136				if a.showHelp {
137					a.ToggleHelp()
138					return a, nil
139				}
140			case key.Matches(msg, replKeyMap):
141				if a.currentPage == page.ReplPage {
142					sessions, err := a.app.Sessions.List()
143					if err != nil {
144						return a, util.CmdHandler(util.ErrorMsg(err))
145					}
146					lastSession := sessions[0]
147					if lastSession.MessageCount == 0 {
148						return a, util.CmdHandler(repl.SelectedSessionMsg{SessionID: lastSession.ID})
149					}
150					s, err := a.app.Sessions.Create("New Session")
151					if err != nil {
152						return a, util.CmdHandler(util.ErrorMsg(err))
153					}
154					return a, util.CmdHandler(repl.SelectedSessionMsg{SessionID: s.ID})
155				}
156			case key.Matches(msg, keys.Logs):
157				return a, a.moveToPage(page.LogsPage)
158			case key.Matches(msg, keys.Help):
159				a.ToggleHelp()
160				return a, nil
161			}
162		}
163	}
164	if a.dialogVisible {
165		d, cmd := a.dialog.Update(msg)
166		a.dialog = d.(core.DialogCmp)
167		return a, cmd
168	}
169	s, _ := a.status.Update(msg)
170	a.status = s
171	p, cmd := a.pages[a.currentPage].Update(msg)
172	a.pages[a.currentPage] = p
173	return a, cmd
174}
175
176func (a *appModel) ToggleHelp() {
177	if a.showHelp {
178		a.showHelp = false
179		a.height += a.help.Height()
180	} else {
181		a.showHelp = true
182		a.height -= a.help.Height()
183	}
184
185	if sizable, ok := a.pages[a.currentPage].(layout.Sizeable); ok {
186		sizable.SetSize(a.width, a.height)
187	}
188}
189
190func (a *appModel) moveToPage(pageID page.PageID) tea.Cmd {
191	var cmd tea.Cmd
192	if _, ok := a.loadedPages[pageID]; !ok {
193		cmd = a.pages[pageID].Init()
194		a.loadedPages[pageID] = true
195	}
196	a.previousPage = a.currentPage
197	a.currentPage = pageID
198	if sizable, ok := a.pages[a.currentPage].(layout.Sizeable); ok {
199		sizable.SetSize(a.width, a.height)
200	}
201
202	return cmd
203}
204
205func (a appModel) View() string {
206	components := []string{
207		a.pages[a.currentPage].View(),
208	}
209
210	if a.showHelp {
211		bindings := layout.KeyMapToSlice(keys)
212		if p, ok := a.pages[a.currentPage].(layout.Bindings); ok {
213			bindings = append(bindings, p.BindingKeys()...)
214		}
215		if a.dialogVisible {
216			bindings = append(bindings, a.dialog.BindingKeys()...)
217		}
218		if a.currentPage == page.ReplPage {
219			bindings = append(bindings, replKeyMap)
220		}
221		a.help.SetBindings(bindings)
222		components = append(components, a.help.View())
223	}
224
225	components = append(components, a.status.View())
226
227	appView := lipgloss.JoinVertical(lipgloss.Top, components...)
228
229	if a.dialogVisible {
230		overlay := a.dialog.View()
231		row := lipgloss.Height(appView) / 2
232		row -= lipgloss.Height(overlay) / 2
233		col := lipgloss.Width(appView) / 2
234		col -= lipgloss.Width(overlay) / 2
235		appView = layout.PlaceOverlay(
236			col,
237			row,
238			overlay,
239			appView,
240			true,
241		)
242	}
243	return appView
244}
245
246func New(app *app.App) tea.Model {
247	// homedir, _ := os.UserHomeDir()
248	// configPath := filepath.Join(homedir, ".termai.yaml")
249	//
250	startPage := page.ReplPage
251	// if _, err := os.Stat(configPath); os.IsNotExist(err) {
252	// 	startPage = page.InitPage
253	// }
254
255	return &appModel{
256		currentPage: startPage,
257		loadedPages: make(map[page.PageID]bool),
258		status:      core.NewStatusCmp(),
259		help:        core.NewHelpCmp(),
260		dialog:      core.NewDialogCmp(),
261		app:         app,
262		pages: map[page.PageID]tea.Model{
263			page.LogsPage: page.NewLogsPage(),
264			page.InitPage: page.NewInitPage(),
265			page.ReplPage: page.NewReplPage(app),
266		},
267	}
268}