1package dialog
2
3import (
4 "cmp"
5 "fmt"
6 "slices"
7 "strings"
8
9 "charm.land/bubbles/v2/help"
10 "charm.land/bubbles/v2/key"
11 "charm.land/bubbles/v2/textinput"
12 tea "charm.land/bubbletea/v2"
13 "charm.land/lipgloss/v2"
14 "github.com/charmbracelet/catwalk/pkg/catwalk"
15 "github.com/charmbracelet/crush/internal/config"
16 "github.com/charmbracelet/crush/internal/ui/common"
17 "github.com/charmbracelet/crush/internal/uiutil"
18 uv "github.com/charmbracelet/ultraviolet"
19 "github.com/charmbracelet/x/ansi"
20)
21
22// ModelType represents the type of model to select.
23type ModelType int
24
25const (
26 ModelTypeLarge ModelType = iota
27 ModelTypeSmall
28)
29
30// String returns the string representation of the [ModelType].
31func (mt ModelType) String() string {
32 switch mt {
33 case ModelTypeLarge:
34 return "Large Task"
35 case ModelTypeSmall:
36 return "Small Task"
37 default:
38 return "Unknown"
39 }
40}
41
42// Config returns the corresponding config model type.
43func (mt ModelType) Config() config.SelectedModelType {
44 switch mt {
45 case ModelTypeLarge:
46 return config.SelectedModelTypeLarge
47 case ModelTypeSmall:
48 return config.SelectedModelTypeSmall
49 default:
50 return ""
51 }
52}
53
54// Placeholder returns the input placeholder for the model type.
55func (mt ModelType) Placeholder() string {
56 switch mt {
57 case ModelTypeLarge:
58 return largeModelInputPlaceholder
59 case ModelTypeSmall:
60 return smallModelInputPlaceholder
61 default:
62 return ""
63 }
64}
65
66const (
67 largeModelInputPlaceholder = "Choose a model for large, complex tasks"
68 smallModelInputPlaceholder = "Choose a model for small, simple tasks"
69)
70
71// ModelsID is the identifier for the model selection dialog.
72const ModelsID = "models"
73
74// Models represents a model selection dialog.
75type Models struct {
76 com *common.Common
77
78 modelType ModelType
79 providers []catwalk.Provider
80
81 keyMap struct {
82 Tab key.Binding
83 UpDown key.Binding
84 Select key.Binding
85 Next key.Binding
86 Previous key.Binding
87 Close key.Binding
88 }
89 list *ModelsList
90 input textinput.Model
91 help help.Model
92}
93
94var _ Dialog = (*Models)(nil)
95
96// NewModels creates a new Models dialog.
97func NewModels(com *common.Common) (*Models, error) {
98 t := com.Styles
99 m := &Models{}
100 m.com = com
101 help := help.New()
102 help.Styles = t.DialogHelpStyles()
103
104 m.help = help
105 m.list = NewModelsList(t)
106 m.list.Focus()
107 m.list.SetSelected(0)
108
109 m.input = textinput.New()
110 m.input.SetVirtualCursor(false)
111 m.input.Placeholder = largeModelInputPlaceholder
112 m.input.SetStyles(com.Styles.TextInput)
113 m.input.Focus()
114
115 m.keyMap.Tab = key.NewBinding(
116 key.WithKeys("tab", "shift+tab"),
117 key.WithHelp("tab", "toggle type"),
118 )
119 m.keyMap.Select = key.NewBinding(
120 key.WithKeys("enter", "ctrl+y"),
121 key.WithHelp("enter", "confirm"),
122 )
123 m.keyMap.UpDown = key.NewBinding(
124 key.WithKeys("up", "down"),
125 key.WithHelp("↑/↓", "choose"),
126 )
127 m.keyMap.Next = key.NewBinding(
128 key.WithKeys("down", "ctrl+n"),
129 key.WithHelp("↓", "next item"),
130 )
131 m.keyMap.Previous = key.NewBinding(
132 key.WithKeys("up", "ctrl+p"),
133 key.WithHelp("↑", "previous item"),
134 )
135 m.keyMap.Close = CloseKey
136
137 providers, err := getFilteredProviders(com.Config())
138 if err != nil {
139 return nil, fmt.Errorf("failed to get providers: %w", err)
140 }
141
142 m.providers = providers
143 if err := m.setProviderItems(); err != nil {
144 return nil, fmt.Errorf("failed to set provider items: %w", err)
145 }
146
147 return m, nil
148}
149
150// ID implements Dialog.
151func (m *Models) ID() string {
152 return ModelsID
153}
154
155// HandleMsg implements Dialog.
156func (m *Models) HandleMsg(msg tea.Msg) Action {
157 switch msg := msg.(type) {
158 case tea.KeyPressMsg:
159 switch {
160 case key.Matches(msg, m.keyMap.Close):
161 return ActionClose{}
162 case key.Matches(msg, m.keyMap.Previous):
163 m.list.Focus()
164 if m.list.IsSelectedFirst() {
165 m.list.SelectLast()
166 m.list.ScrollToBottom()
167 break
168 }
169 m.list.SelectPrev()
170 m.list.ScrollToSelected()
171 case key.Matches(msg, m.keyMap.Next):
172 m.list.Focus()
173 if m.list.IsSelectedLast() {
174 m.list.SelectFirst()
175 m.list.ScrollToTop()
176 break
177 }
178 m.list.SelectNext()
179 m.list.ScrollToSelected()
180 case key.Matches(msg, m.keyMap.Select):
181 selectedItem := m.list.SelectedItem()
182 if selectedItem == nil {
183 break
184 }
185
186 modelItem, ok := selectedItem.(*ModelItem)
187 if !ok {
188 break
189 }
190
191 return ActionSelectModel{
192 Provider: modelItem.prov,
193 Model: modelItem.SelectedModel(),
194 ModelType: modelItem.SelectedModelType(),
195 }
196 case key.Matches(msg, m.keyMap.Tab):
197 if m.modelType == ModelTypeLarge {
198 m.modelType = ModelTypeSmall
199 } else {
200 m.modelType = ModelTypeLarge
201 }
202 if err := m.setProviderItems(); err != nil {
203 return uiutil.ReportError(err)
204 }
205 default:
206 var cmd tea.Cmd
207 m.input, cmd = m.input.Update(msg)
208 value := m.input.Value()
209 m.list.SetFilter(value)
210 m.list.ScrollToSelected()
211 return ActionCmd{cmd}
212 }
213 }
214 return nil
215}
216
217// Cursor returns the cursor for the dialog.
218func (m *Models) Cursor() *tea.Cursor {
219 return InputCursor(m.com.Styles, m.input.Cursor())
220}
221
222// modelTypeRadioView returns the radio view for model type selection.
223func (m *Models) modelTypeRadioView() string {
224 t := m.com.Styles
225 textStyle := t.HalfMuted
226 largeRadioStyle := t.RadioOff
227 smallRadioStyle := t.RadioOff
228 if m.modelType == ModelTypeLarge {
229 largeRadioStyle = t.RadioOn
230 } else {
231 smallRadioStyle = t.RadioOn
232 }
233
234 largeRadio := largeRadioStyle.Padding(0, 1).Render()
235 smallRadio := smallRadioStyle.Padding(0, 1).Render()
236
237 return fmt.Sprintf("%s%s %s%s",
238 largeRadio, textStyle.Render(ModelTypeLarge.String()),
239 smallRadio, textStyle.Render(ModelTypeSmall.String()))
240}
241
242// Draw implements [Dialog].
243func (m *Models) Draw(scr uv.Screen, area uv.Rectangle) *tea.Cursor {
244 t := m.com.Styles
245 width := max(0, min(defaultDialogMaxWidth, area.Dx()))
246 height := max(0, min(defaultDialogHeight, area.Dy()))
247 innerWidth := width - t.Dialog.View.GetHorizontalFrameSize()
248 heightOffset := t.Dialog.Title.GetVerticalFrameSize() + titleContentHeight +
249 t.Dialog.InputPrompt.GetVerticalFrameSize() + inputContentHeight +
250 t.Dialog.HelpView.GetVerticalFrameSize() +
251 t.Dialog.View.GetVerticalFrameSize()
252 m.input.SetWidth(innerWidth - t.Dialog.InputPrompt.GetHorizontalFrameSize() - 1) // (1) cursor padding
253 m.list.SetSize(innerWidth, height-heightOffset)
254 m.help.SetWidth(innerWidth)
255
256 titleStyle := t.Dialog.Title
257 dialogStyle := t.Dialog.View
258
259 radios := m.modelTypeRadioView()
260
261 headerOffset := lipgloss.Width(radios) + titleStyle.GetHorizontalFrameSize() +
262 dialogStyle.GetHorizontalFrameSize()
263
264 header := common.DialogTitle(t, "Switch Model", width-headerOffset) + radios
265
266 helpView := ansi.Truncate(m.help.View(m), innerWidth, "")
267 view := HeaderInputListHelpView(t, width, m.list.Height(), header,
268 m.input.View(), m.list.Render(), helpView)
269
270 cur := m.Cursor()
271 DrawCenterCursor(scr, area, view, cur)
272 return cur
273}
274
275// ShortHelp returns the short help view.
276func (m *Models) ShortHelp() []key.Binding {
277 return []key.Binding{
278 m.keyMap.UpDown,
279 m.keyMap.Tab,
280 m.keyMap.Select,
281 m.keyMap.Close,
282 }
283}
284
285// FullHelp returns the full help view.
286func (m *Models) FullHelp() [][]key.Binding {
287 return [][]key.Binding{
288 {
289 m.keyMap.Select,
290 m.keyMap.Next,
291 m.keyMap.Previous,
292 m.keyMap.Tab,
293 },
294 {
295 m.keyMap.Close,
296 },
297 }
298}
299
300// setProviderItems sets the provider items in the list.
301func (m *Models) setProviderItems() error {
302 t := m.com.Styles
303 cfg := m.com.Config()
304
305 var selectedItemID string
306 selectedType := m.modelType.Config()
307 currentModel := cfg.Models[selectedType]
308 recentItems := cfg.RecentModels[selectedType]
309
310 // Track providers already added to avoid duplicates
311 addedProviders := make(map[string]bool)
312
313 // Get a list of known providers to compare against
314 knownProviders, err := config.Providers(cfg)
315 if err != nil {
316 return fmt.Errorf("failed to get providers: %w", err)
317 }
318
319 containsProviderFunc := func(id string) func(p catwalk.Provider) bool {
320 return func(p catwalk.Provider) bool {
321 return p.ID == catwalk.InferenceProvider(id)
322 }
323 }
324
325 // itemsMap contains the keys of added model items.
326 itemsMap := make(map[string]*ModelItem)
327 groups := []ModelGroup{}
328 for id, p := range cfg.Providers.Seq2() {
329 if p.Disable {
330 continue
331 }
332
333 // Check if this provider is not in the known providers list
334 if !slices.ContainsFunc(knownProviders, containsProviderFunc(id)) ||
335 !slices.ContainsFunc(m.providers, containsProviderFunc(id)) {
336 provider := p.ToProvider()
337
338 // Add this unknown provider to the list
339 name := cmp.Or(p.Name, id)
340
341 addedProviders[id] = true
342
343 group := NewModelGroup(t, name, true)
344 for _, model := range p.Models {
345 item := NewModelItem(t, provider, model, m.modelType, false)
346 group.AppendItems(item)
347 itemsMap[item.ID()] = item
348 if model.ID == currentModel.Model && string(provider.ID) == currentModel.Provider {
349 selectedItemID = item.ID()
350 }
351 }
352 if len(group.Items) > 0 {
353 groups = append(groups, group)
354 }
355 }
356 }
357
358 // Now add known providers from the predefined list
359 for _, provider := range m.providers {
360 providerID := string(provider.ID)
361 if addedProviders[providerID] {
362 continue
363 }
364
365 providerConfig, providerConfigured := cfg.Providers.Get(providerID)
366 if providerConfigured && providerConfig.Disable {
367 continue
368 }
369
370 displayProvider := provider
371 if providerConfigured {
372 displayProvider.Name = cmp.Or(providerConfig.Name, displayProvider.Name)
373 modelIndex := make(map[string]int, len(displayProvider.Models))
374 for i, model := range displayProvider.Models {
375 modelIndex[model.ID] = i
376 }
377 for _, model := range providerConfig.Models {
378 if model.ID == "" {
379 continue
380 }
381 if idx, ok := modelIndex[model.ID]; ok {
382 if model.Name != "" {
383 displayProvider.Models[idx].Name = model.Name
384 }
385 continue
386 }
387 if model.Name == "" {
388 model.Name = model.ID
389 }
390 displayProvider.Models = append(displayProvider.Models, model)
391 modelIndex[model.ID] = len(displayProvider.Models) - 1
392 }
393 }
394
395 name := displayProvider.Name
396 if name == "" {
397 name = providerID
398 }
399
400 group := NewModelGroup(t, name, providerConfigured)
401 for _, model := range displayProvider.Models {
402 item := NewModelItem(t, provider, model, m.modelType, false)
403 group.AppendItems(item)
404 itemsMap[item.ID()] = item
405 if model.ID == currentModel.Model && string(provider.ID) == currentModel.Provider {
406 selectedItemID = item.ID()
407 }
408 }
409
410 groups = append(groups, group)
411 }
412
413 if len(recentItems) > 0 {
414 recentGroup := NewModelGroup(t, "Recently used", false)
415
416 var validRecentItems []config.SelectedModel
417 for _, recent := range recentItems {
418 key := modelKey(recent.Provider, recent.Model)
419 item, ok := itemsMap[key]
420 if !ok {
421 continue
422 }
423
424 // Show provider for recent items
425 item = NewModelItem(t, item.prov, item.model, m.modelType, true)
426 item.showProvider = true
427
428 validRecentItems = append(validRecentItems, recent)
429 recentGroup.AppendItems(item)
430 if recent.Model == currentModel.Model && recent.Provider == currentModel.Provider {
431 selectedItemID = item.ID()
432 }
433 }
434
435 if len(validRecentItems) != len(recentItems) {
436 // FIXME: Does this need to be here? Is it mutating the config during a read?
437 if err := cfg.SetConfigField(fmt.Sprintf("recent_models.%s", selectedType), validRecentItems); err != nil {
438 return fmt.Errorf("failed to update recent models: %w", err)
439 }
440 }
441
442 if len(recentGroup.Items) > 0 {
443 groups = append([]ModelGroup{recentGroup}, groups...)
444 }
445 }
446
447 // Set model groups in the list.
448 m.list.SetGroups(groups...)
449 m.list.SetSelectedItem(selectedItemID)
450
451 // Update placeholder based on model type
452 m.input.Placeholder = m.modelType.Placeholder()
453
454 return nil
455}
456
457func getFilteredProviders(cfg *config.Config) ([]catwalk.Provider, error) {
458 providers, err := config.Providers(cfg)
459 if err != nil {
460 return nil, fmt.Errorf("failed to get providers: %w", err)
461 }
462 filteredProviders := []catwalk.Provider{}
463 for _, p := range providers {
464 hasAPIKeyEnv := strings.HasPrefix(p.APIKey, "$")
465 if hasAPIKeyEnv && p.ID != catwalk.InferenceProviderAzure {
466 filteredProviders = append(filteredProviders, p)
467 }
468 }
469 return filteredProviders, nil
470}
471
472func modelKey(providerID, modelID string) string {
473 if providerID == "" || modelID == "" {
474 return ""
475 }
476 return providerID + ":" + modelID
477}