1package messages
2
3import (
4 "encoding/json"
5 "fmt"
6 "strings"
7 "time"
8
9 "github.com/charmbracelet/crush/internal/agent"
10 "github.com/charmbracelet/crush/internal/agent/tools"
11 "github.com/charmbracelet/crush/internal/ansiext"
12 "github.com/charmbracelet/crush/internal/fsext"
13 "github.com/charmbracelet/crush/internal/tui/components/core"
14 "github.com/charmbracelet/crush/internal/tui/highlight"
15 "github.com/charmbracelet/crush/internal/tui/styles"
16 "github.com/charmbracelet/lipgloss/v2"
17 "github.com/charmbracelet/lipgloss/v2/tree"
18 "github.com/charmbracelet/x/ansi"
19)
20
21// responseContextHeight limits the number of lines displayed in tool output
22const responseContextHeight = 10
23
24// renderer defines the interface for tool-specific rendering implementations
25type renderer interface {
26 // Render returns the complete (already styled) tool‑call view, not
27 // including the outer border.
28 Render(v *toolCallCmp) string
29}
30
31// rendererFactory creates new renderer instances
32type rendererFactory func() renderer
33
34// renderRegistry manages the mapping of tool names to their renderers
35type renderRegistry map[string]rendererFactory
36
37// register adds a new renderer factory to the registry
38func (rr renderRegistry) register(name string, f rendererFactory) { rr[name] = f }
39
40// lookup retrieves a renderer for the given tool name, falling back to generic renderer
41func (rr renderRegistry) lookup(name string) renderer {
42 if f, ok := rr[name]; ok {
43 return f()
44 }
45 return genericRenderer{} // sensible fallback
46}
47
48// registry holds all registered tool renderers
49var registry = renderRegistry{}
50
51// baseRenderer provides common functionality for all tool renderers
52type baseRenderer struct{}
53
54// paramBuilder helps construct parameter lists for tool headers
55type paramBuilder struct {
56 args []string
57}
58
59// newParamBuilder creates a new parameter builder
60func newParamBuilder() *paramBuilder {
61 return ¶mBuilder{args: make([]string, 0)}
62}
63
64// addMain adds the main parameter (first argument)
65func (pb *paramBuilder) addMain(value string) *paramBuilder {
66 if value != "" {
67 pb.args = append(pb.args, value)
68 }
69 return pb
70}
71
72// addKeyValue adds a key-value pair parameter
73func (pb *paramBuilder) addKeyValue(key, value string) *paramBuilder {
74 if value != "" {
75 pb.args = append(pb.args, key, value)
76 }
77 return pb
78}
79
80// addFlag adds a boolean flag parameter
81func (pb *paramBuilder) addFlag(key string, value bool) *paramBuilder {
82 if value {
83 pb.args = append(pb.args, key, "true")
84 }
85 return pb
86}
87
88// build returns the final parameter list
89func (pb *paramBuilder) build() []string {
90 return pb.args
91}
92
93// renderWithParams provides a common rendering pattern for tools with parameters
94func (br baseRenderer) renderWithParams(v *toolCallCmp, toolName string, args []string, contentRenderer func() string) string {
95 width := v.textWidth()
96 if v.isNested {
97 width -= 4 // Adjust for nested tool call indentation
98 }
99 header := br.makeHeader(v, toolName, width, args...)
100 if v.isNested {
101 return v.style().Render(header)
102 }
103 if res, done := earlyState(header, v); done {
104 return res
105 }
106 body := contentRenderer()
107 return joinHeaderBody(header, body)
108}
109
110// unmarshalParams safely unmarshal JSON parameters
111func (br baseRenderer) unmarshalParams(input string, target any) error {
112 return json.Unmarshal([]byte(input), target)
113}
114
115// makeHeader builds the tool call header with status icon and parameters for a nested tool call.
116func (br baseRenderer) makeNestedHeader(v *toolCallCmp, tool string, width int, params ...string) string {
117 t := styles.CurrentTheme()
118 icon := t.S().Base.Foreground(t.GreenDark).Render(styles.ToolPending)
119 if v.result.ToolCallID != "" {
120 if v.result.IsError {
121 icon = t.S().Base.Foreground(t.RedDark).Render(styles.ToolError)
122 } else {
123 icon = t.S().Base.Foreground(t.Green).Render(styles.ToolSuccess)
124 }
125 } else if v.cancelled {
126 icon = t.S().Muted.Render(styles.ToolPending)
127 }
128 tool = t.S().Base.Foreground(t.FgHalfMuted).Render(tool)
129 prefix := fmt.Sprintf("%s %s ", icon, tool)
130 return prefix + renderParamList(true, width-lipgloss.Width(prefix), params...)
131}
132
133// makeHeader builds "<Tool>: param (key=value)" and truncates as needed.
134func (br baseRenderer) makeHeader(v *toolCallCmp, tool string, width int, params ...string) string {
135 if v.isNested {
136 return br.makeNestedHeader(v, tool, width, params...)
137 }
138 t := styles.CurrentTheme()
139 icon := t.S().Base.Foreground(t.GreenDark).Render(styles.ToolPending)
140 if v.result.ToolCallID != "" {
141 if v.result.IsError {
142 icon = t.S().Base.Foreground(t.RedDark).Render(styles.ToolError)
143 } else {
144 icon = t.S().Base.Foreground(t.Green).Render(styles.ToolSuccess)
145 }
146 } else if v.cancelled {
147 icon = t.S().Muted.Render(styles.ToolPending)
148 }
149 tool = t.S().Base.Foreground(t.Blue).Render(tool)
150 prefix := fmt.Sprintf("%s %s ", icon, tool)
151 return prefix + renderParamList(false, width-lipgloss.Width(prefix), params...)
152}
153
154// renderError provides consistent error rendering
155func (br baseRenderer) renderError(v *toolCallCmp, message string) string {
156 t := styles.CurrentTheme()
157 header := br.makeHeader(v, prettifyToolName(v.call.Name), v.textWidth(), "")
158 errorTag := t.S().Base.Padding(0, 1).Background(t.Red).Foreground(t.White).Render("ERROR")
159 message = t.S().Base.Foreground(t.FgHalfMuted).Render(v.fit(message, v.textWidth()-3-lipgloss.Width(errorTag))) // -2 for padding and space
160 return joinHeaderBody(header, errorTag+" "+message)
161}
162
163// Register tool renderers
164func init() {
165 registry.register(tools.BashToolName, func() renderer { return bashRenderer{} })
166 registry.register(tools.DownloadToolName, func() renderer { return downloadRenderer{} })
167 registry.register(tools.ViewToolName, func() renderer { return viewRenderer{} })
168 registry.register(tools.EditToolName, func() renderer { return editRenderer{} })
169 registry.register(tools.MultiEditToolName, func() renderer { return multiEditRenderer{} })
170 registry.register(tools.WriteToolName, func() renderer { return writeRenderer{} })
171 registry.register(tools.FetchToolName, func() renderer { return fetchRenderer{} })
172 registry.register(tools.WebFetchToolName, func() renderer { return webFetchRenderer{} })
173 registry.register(tools.GlobToolName, func() renderer { return globRenderer{} })
174 registry.register(tools.GrepToolName, func() renderer { return grepRenderer{} })
175 registry.register(tools.LSToolName, func() renderer { return lsRenderer{} })
176 registry.register(tools.SourcegraphToolName, func() renderer { return sourcegraphRenderer{} })
177 registry.register(tools.DiagnosticsToolName, func() renderer { return diagnosticsRenderer{} })
178 registry.register(agent.AgentToolName, func() renderer { return agentRenderer{} })
179}
180
181// -----------------------------------------------------------------------------
182// Generic renderer
183// -----------------------------------------------------------------------------
184
185// genericRenderer handles unknown tool types with basic parameter display
186type genericRenderer struct {
187 baseRenderer
188}
189
190// Render displays the tool call with its raw input and plain content output
191func (gr genericRenderer) Render(v *toolCallCmp) string {
192 return gr.renderWithParams(v, prettifyToolName(v.call.Name), []string{v.call.Input}, func() string {
193 return renderPlainContent(v, v.result.Content)
194 })
195}
196
197// -----------------------------------------------------------------------------
198// Bash renderer
199// -----------------------------------------------------------------------------
200
201// bashRenderer handles bash command execution display
202type bashRenderer struct {
203 baseRenderer
204}
205
206// Render displays the bash command with sanitized newlines and plain output
207func (br bashRenderer) Render(v *toolCallCmp) string {
208 var params tools.BashParams
209 if err := br.unmarshalParams(v.call.Input, ¶ms); err != nil {
210 return br.renderError(v, "Invalid bash parameters")
211 }
212
213 cmd := strings.ReplaceAll(params.Command, "\n", " ")
214 cmd = strings.ReplaceAll(cmd, "\t", " ")
215 args := newParamBuilder().addMain(cmd).build()
216
217 return br.renderWithParams(v, "Bash", args, func() string {
218 var meta tools.BashResponseMetadata
219 if err := br.unmarshalParams(v.result.Metadata, &meta); err != nil {
220 return renderPlainContent(v, v.result.Content)
221 }
222 // for backwards compatibility with older tool calls.
223 if meta.Output == "" && v.result.Content != tools.BashNoOutput {
224 meta.Output = v.result.Content
225 }
226
227 if meta.Output == "" {
228 return ""
229 }
230 return renderPlainContent(v, meta.Output)
231 })
232}
233
234// -----------------------------------------------------------------------------
235// View renderer
236// -----------------------------------------------------------------------------
237
238// viewRenderer handles file viewing with syntax highlighting and line numbers
239type viewRenderer struct {
240 baseRenderer
241}
242
243// Render displays file content with optional limit and offset parameters
244func (vr viewRenderer) Render(v *toolCallCmp) string {
245 var params tools.ViewParams
246 if err := vr.unmarshalParams(v.call.Input, ¶ms); err != nil {
247 return vr.renderError(v, "Invalid view parameters")
248 }
249
250 file := fsext.PrettyPath(params.FilePath)
251 args := newParamBuilder().
252 addMain(file).
253 addKeyValue("limit", formatNonZero(params.Limit)).
254 addKeyValue("offset", formatNonZero(params.Offset)).
255 build()
256
257 return vr.renderWithParams(v, "View", args, func() string {
258 var meta tools.ViewResponseMetadata
259 if err := vr.unmarshalParams(v.result.Metadata, &meta); err != nil {
260 return renderPlainContent(v, v.result.Content)
261 }
262 return renderCodeContent(v, meta.FilePath, meta.Content, params.Offset)
263 })
264}
265
266// formatNonZero returns string representation of non-zero integers, empty string for zero
267func formatNonZero(value int) string {
268 if value == 0 {
269 return ""
270 }
271 return fmt.Sprintf("%d", value)
272}
273
274// -----------------------------------------------------------------------------
275// Edit renderer
276// -----------------------------------------------------------------------------
277
278// editRenderer handles file editing with diff visualization
279type editRenderer struct {
280 baseRenderer
281}
282
283// Render displays the edited file with a formatted diff of changes
284func (er editRenderer) Render(v *toolCallCmp) string {
285 t := styles.CurrentTheme()
286 var params tools.EditParams
287 var args []string
288 if err := er.unmarshalParams(v.call.Input, ¶ms); err == nil {
289 file := fsext.PrettyPath(params.FilePath)
290 args = newParamBuilder().addMain(file).build()
291 }
292
293 return er.renderWithParams(v, "Edit", args, func() string {
294 var meta tools.EditResponseMetadata
295 if err := er.unmarshalParams(v.result.Metadata, &meta); err != nil {
296 return renderPlainContent(v, v.result.Content)
297 }
298
299 formatter := core.DiffFormatter().
300 Before(fsext.PrettyPath(params.FilePath), meta.OldContent).
301 After(fsext.PrettyPath(params.FilePath), meta.NewContent).
302 Width(v.textWidth() - 2) // -2 for padding
303 if v.textWidth() > 120 {
304 formatter = formatter.Split()
305 }
306 // add a message to the bottom if the content was truncated
307 formatted := formatter.String()
308 if lipgloss.Height(formatted) > responseContextHeight {
309 contentLines := strings.Split(formatted, "\n")
310 truncateMessage := t.S().Muted.
311 Background(t.BgBaseLighter).
312 PaddingLeft(2).
313 Width(v.textWidth() - 2).
314 Render(fmt.Sprintf("… (%d lines)", len(contentLines)-responseContextHeight))
315 formatted = strings.Join(contentLines[:responseContextHeight], "\n") + "\n" + truncateMessage
316 }
317 return formatted
318 })
319}
320
321// -----------------------------------------------------------------------------
322// Multi-Edit renderer
323// -----------------------------------------------------------------------------
324
325// multiEditRenderer handles multiple file edits with diff visualization
326type multiEditRenderer struct {
327 baseRenderer
328}
329
330// Render displays the multi-edited file with a formatted diff of changes
331func (mer multiEditRenderer) Render(v *toolCallCmp) string {
332 t := styles.CurrentTheme()
333 var params tools.MultiEditParams
334 var args []string
335 if err := mer.unmarshalParams(v.call.Input, ¶ms); err == nil {
336 file := fsext.PrettyPath(params.FilePath)
337 editsCount := len(params.Edits)
338 args = newParamBuilder().
339 addMain(file).
340 addKeyValue("edits", fmt.Sprintf("%d", editsCount)).
341 build()
342 }
343
344 return mer.renderWithParams(v, "Multi-Edit", args, func() string {
345 var meta tools.MultiEditResponseMetadata
346 if err := mer.unmarshalParams(v.result.Metadata, &meta); err != nil {
347 return renderPlainContent(v, v.result.Content)
348 }
349
350 formatter := core.DiffFormatter().
351 Before(fsext.PrettyPath(params.FilePath), meta.OldContent).
352 After(fsext.PrettyPath(params.FilePath), meta.NewContent).
353 Width(v.textWidth() - 2) // -2 for padding
354 if v.textWidth() > 120 {
355 formatter = formatter.Split()
356 }
357 // add a message to the bottom if the content was truncated
358 formatted := formatter.String()
359 if lipgloss.Height(formatted) > responseContextHeight {
360 contentLines := strings.Split(formatted, "\n")
361 truncateMessage := t.S().Muted.
362 Background(t.BgBaseLighter).
363 PaddingLeft(2).
364 Width(v.textWidth() - 4).
365 Render(fmt.Sprintf("… (%d lines)", len(contentLines)-responseContextHeight))
366 formatted = strings.Join(contentLines[:responseContextHeight], "\n") + "\n" + truncateMessage
367 }
368 return formatted
369 })
370}
371
372// -----------------------------------------------------------------------------
373// Write renderer
374// -----------------------------------------------------------------------------
375
376// writeRenderer handles file writing with syntax-highlighted content preview
377type writeRenderer struct {
378 baseRenderer
379}
380
381// Render displays the file being written with syntax highlighting
382func (wr writeRenderer) Render(v *toolCallCmp) string {
383 var params tools.WriteParams
384 var args []string
385 var file string
386 if err := wr.unmarshalParams(v.call.Input, ¶ms); err == nil {
387 file = fsext.PrettyPath(params.FilePath)
388 args = newParamBuilder().addMain(file).build()
389 }
390
391 return wr.renderWithParams(v, "Write", args, func() string {
392 return renderCodeContent(v, file, params.Content, 0)
393 })
394}
395
396// -----------------------------------------------------------------------------
397// Fetch renderer
398// -----------------------------------------------------------------------------
399
400// fetchRenderer handles URL fetching with format-specific content display
401type fetchRenderer struct {
402 baseRenderer
403}
404
405// Render displays the fetched URL with prompt parameter and nested tool calls
406func (fr fetchRenderer) Render(v *toolCallCmp) string {
407 t := styles.CurrentTheme()
408 var params tools.FetchParams
409 var args []string
410 if err := fr.unmarshalParams(v.call.Input, ¶ms); err == nil {
411 args = newParamBuilder().
412 addMain(params.URL).
413 build()
414 }
415
416 prompt := params.Prompt
417 prompt = strings.ReplaceAll(prompt, "\n", " ")
418
419 header := fr.makeHeader(v, "Fetch", v.textWidth(), args...)
420 if res, done := earlyState(header, v); v.cancelled && done {
421 return res
422 }
423
424 taskTag := t.S().Base.Padding(0, 1).MarginLeft(2).Background(t.GreenLight).Foreground(t.White).Render("Prompt")
425 remainingWidth := v.textWidth() - (lipgloss.Width(taskTag) + 1)
426 remainingWidth = min(remainingWidth, 120-(lipgloss.Width(taskTag)+1))
427 prompt = t.S().Muted.Width(remainingWidth).Render(prompt)
428 header = lipgloss.JoinVertical(
429 lipgloss.Left,
430 header,
431 "",
432 lipgloss.JoinHorizontal(
433 lipgloss.Left,
434 taskTag,
435 " ",
436 prompt,
437 ),
438 )
439 childTools := tree.Root(header)
440
441 for _, call := range v.nestedToolCalls {
442 call.SetSize(remainingWidth, 1)
443 childTools.Child(call.View())
444 }
445 parts := []string{
446 childTools.Enumerator(RoundedEnumeratorWithWidth(lipgloss.Width(taskTag) - 2)).String(),
447 }
448
449 if v.result.ToolCallID == "" {
450 v.spinning = true
451 parts = append(parts, "", v.anim.View())
452 } else {
453 v.spinning = false
454 }
455
456 header = lipgloss.JoinVertical(
457 lipgloss.Left,
458 parts...,
459 )
460
461 if v.result.ToolCallID == "" {
462 return header
463 }
464 body := renderMarkdownContent(v, v.result.Content)
465 return joinHeaderBody(header, body)
466}
467
468// formatTimeout converts timeout seconds to duration string
469func formatTimeout(timeout int) string {
470 if timeout == 0 {
471 return ""
472 }
473 return (time.Duration(timeout) * time.Second).String()
474}
475
476// -----------------------------------------------------------------------------
477// Web fetch renderer
478// -----------------------------------------------------------------------------
479
480// webFetchRenderer handles web page fetching with simplified URL display
481type webFetchRenderer struct {
482 baseRenderer
483}
484
485// Render displays a compact view of web_fetch with just the URL in a link style
486func (wfr webFetchRenderer) Render(v *toolCallCmp) string {
487 var params tools.FetchParams
488 var args []string
489 if err := wfr.unmarshalParams(v.call.Input, ¶ms); err == nil {
490 args = newParamBuilder().
491 addMain(params.URL).
492 build()
493 }
494
495 return wfr.renderWithParams(v, "Fetch", args, func() string {
496 return renderMarkdownContent(v, v.result.Content)
497 })
498}
499
500// -----------------------------------------------------------------------------
501// Download renderer
502// -----------------------------------------------------------------------------
503
504// downloadRenderer handles file downloading with URL and file path display
505type downloadRenderer struct {
506 baseRenderer
507}
508
509// Render displays the download URL and destination file path with timeout parameter
510func (dr downloadRenderer) Render(v *toolCallCmp) string {
511 var params tools.DownloadParams
512 var args []string
513 if err := dr.unmarshalParams(v.call.Input, ¶ms); err == nil {
514 args = newParamBuilder().
515 addMain(params.URL).
516 addKeyValue("file_path", fsext.PrettyPath(params.FilePath)).
517 addKeyValue("timeout", formatTimeout(params.Timeout)).
518 build()
519 }
520
521 return dr.renderWithParams(v, "Download", args, func() string {
522 return renderPlainContent(v, v.result.Content)
523 })
524}
525
526// -----------------------------------------------------------------------------
527// Glob renderer
528// -----------------------------------------------------------------------------
529
530// globRenderer handles file pattern matching with path filtering
531type globRenderer struct {
532 baseRenderer
533}
534
535// Render displays the glob pattern with optional path parameter
536func (gr globRenderer) Render(v *toolCallCmp) string {
537 var params tools.GlobParams
538 var args []string
539 if err := gr.unmarshalParams(v.call.Input, ¶ms); err == nil {
540 args = newParamBuilder().
541 addMain(params.Pattern).
542 addKeyValue("path", params.Path).
543 build()
544 }
545
546 return gr.renderWithParams(v, "Glob", args, func() string {
547 return renderPlainContent(v, v.result.Content)
548 })
549}
550
551// -----------------------------------------------------------------------------
552// Grep renderer
553// -----------------------------------------------------------------------------
554
555// grepRenderer handles content searching with pattern matching options
556type grepRenderer struct {
557 baseRenderer
558}
559
560// Render displays the search pattern with path, include, and literal text options
561func (gr grepRenderer) Render(v *toolCallCmp) string {
562 var params tools.GrepParams
563 var args []string
564 if err := gr.unmarshalParams(v.call.Input, ¶ms); err == nil {
565 args = newParamBuilder().
566 addMain(params.Pattern).
567 addKeyValue("path", params.Path).
568 addKeyValue("include", params.Include).
569 addFlag("literal", params.LiteralText).
570 build()
571 }
572
573 return gr.renderWithParams(v, "Grep", args, func() string {
574 return renderPlainContent(v, v.result.Content)
575 })
576}
577
578// -----------------------------------------------------------------------------
579// LS renderer
580// -----------------------------------------------------------------------------
581
582// lsRenderer handles directory listing with default path handling
583type lsRenderer struct {
584 baseRenderer
585}
586
587// Render displays the directory path, defaulting to current directory
588func (lr lsRenderer) Render(v *toolCallCmp) string {
589 var params tools.LSParams
590 var args []string
591 if err := lr.unmarshalParams(v.call.Input, ¶ms); err == nil {
592 path := params.Path
593 if path == "" {
594 path = "."
595 }
596 path = fsext.PrettyPath(path)
597
598 args = newParamBuilder().addMain(path).build()
599 }
600
601 return lr.renderWithParams(v, "List", args, func() string {
602 return renderPlainContent(v, v.result.Content)
603 })
604}
605
606// -----------------------------------------------------------------------------
607// Sourcegraph renderer
608// -----------------------------------------------------------------------------
609
610// sourcegraphRenderer handles code search with count and context options
611type sourcegraphRenderer struct {
612 baseRenderer
613}
614
615// Render displays the search query with optional count and context window parameters
616func (sr sourcegraphRenderer) Render(v *toolCallCmp) string {
617 var params tools.SourcegraphParams
618 var args []string
619 if err := sr.unmarshalParams(v.call.Input, ¶ms); err == nil {
620 args = newParamBuilder().
621 addMain(params.Query).
622 addKeyValue("count", formatNonZero(params.Count)).
623 addKeyValue("context", formatNonZero(params.ContextWindow)).
624 build()
625 }
626
627 return sr.renderWithParams(v, "Sourcegraph", args, func() string {
628 return renderPlainContent(v, v.result.Content)
629 })
630}
631
632// -----------------------------------------------------------------------------
633// Diagnostics renderer
634// -----------------------------------------------------------------------------
635
636// diagnosticsRenderer handles project-wide diagnostic information
637type diagnosticsRenderer struct {
638 baseRenderer
639}
640
641// Render displays project diagnostics with plain content formatting
642func (dr diagnosticsRenderer) Render(v *toolCallCmp) string {
643 args := newParamBuilder().addMain("project").build()
644
645 return dr.renderWithParams(v, "Diagnostics", args, func() string {
646 return renderPlainContent(v, v.result.Content)
647 })
648}
649
650// -----------------------------------------------------------------------------
651// Task renderer
652// -----------------------------------------------------------------------------
653
654// agentRenderer handles project-wide diagnostic information
655type agentRenderer struct {
656 baseRenderer
657}
658
659func RoundedEnumeratorWithWidth(width int) tree.Enumerator {
660 if width == 0 {
661 width = 2
662 }
663 return func(children tree.Children, index int) string {
664 line := strings.Repeat("─", width)
665 if children.Length()-1 == index {
666 return " ╰" + line
667 }
668 return " ├" + line
669 }
670}
671
672// Render displays agent task parameters and result content
673func (tr agentRenderer) Render(v *toolCallCmp) string {
674 t := styles.CurrentTheme()
675 var params agent.AgentParams
676 tr.unmarshalParams(v.call.Input, ¶ms)
677
678 prompt := params.Prompt
679 prompt = strings.ReplaceAll(prompt, "\n", " ")
680
681 header := tr.makeHeader(v, "Agent", v.textWidth())
682 if res, done := earlyState(header, v); v.cancelled && done {
683 return res
684 }
685 taskTag := t.S().Base.Padding(0, 1).MarginLeft(1).Background(t.BlueLight).Foreground(t.White).Render("Task")
686 remainingWidth := v.textWidth() - lipgloss.Width(header) - lipgloss.Width(taskTag) - 2
687 remainingWidth = min(remainingWidth, 120-lipgloss.Width(taskTag)-2)
688 prompt = t.S().Muted.Width(remainingWidth).Render(prompt)
689 header = lipgloss.JoinVertical(
690 lipgloss.Left,
691 header,
692 "",
693 lipgloss.JoinHorizontal(
694 lipgloss.Left,
695 taskTag,
696 " ",
697 prompt,
698 ),
699 )
700 childTools := tree.Root(header)
701
702 for _, call := range v.nestedToolCalls {
703 call.SetSize(remainingWidth, 1)
704 childTools.Child(call.View())
705 }
706 parts := []string{
707 childTools.Enumerator(RoundedEnumeratorWithWidth(lipgloss.Width(taskTag) - 2)).String(),
708 }
709
710 if v.result.ToolCallID == "" {
711 v.spinning = true
712 parts = append(parts, "", v.anim.View())
713 } else {
714 v.spinning = false
715 }
716
717 header = lipgloss.JoinVertical(
718 lipgloss.Left,
719 parts...,
720 )
721
722 if v.result.ToolCallID == "" {
723 return header
724 }
725
726 body := renderMarkdownContent(v, v.result.Content)
727 return joinHeaderBody(header, body)
728}
729
730// renderParamList renders params, params[0] (params[1]=params[2] ....)
731func renderParamList(nested bool, paramsWidth int, params ...string) string {
732 t := styles.CurrentTheme()
733 if len(params) == 0 {
734 return ""
735 }
736 mainParam := params[0]
737 if paramsWidth >= 0 && lipgloss.Width(mainParam) > paramsWidth {
738 mainParam = ansi.Truncate(mainParam, paramsWidth, "…")
739 }
740
741 if len(params) == 1 {
742 if nested {
743 return t.S().Muted.Render(mainParam)
744 }
745 return t.S().Subtle.Render(mainParam)
746 }
747 otherParams := params[1:]
748 // create pairs of key/value
749 // if odd number of params, the last one is a key without value
750 if len(otherParams)%2 != 0 {
751 otherParams = append(otherParams, "")
752 }
753 parts := make([]string, 0, len(otherParams)/2)
754 for i := 0; i < len(otherParams); i += 2 {
755 key := otherParams[i]
756 value := otherParams[i+1]
757 if value == "" {
758 continue
759 }
760 parts = append(parts, fmt.Sprintf("%s=%s", key, value))
761 }
762
763 partsRendered := strings.Join(parts, ", ")
764 remainingWidth := paramsWidth - lipgloss.Width(partsRendered) - 3 // count for " ()"
765 if remainingWidth < 30 {
766 if nested {
767 return t.S().Muted.Render(mainParam)
768 }
769 // No space for the params, just show the main
770 return t.S().Subtle.Render(mainParam)
771 }
772
773 if len(parts) > 0 {
774 mainParam = fmt.Sprintf("%s (%s)", mainParam, strings.Join(parts, ", "))
775 }
776
777 if nested {
778 return t.S().Muted.Render(ansi.Truncate(mainParam, paramsWidth, "…"))
779 }
780 return t.S().Subtle.Render(ansi.Truncate(mainParam, paramsWidth, "…"))
781}
782
783// earlyState returns immediately‑rendered error/cancelled/ongoing states.
784func earlyState(header string, v *toolCallCmp) (string, bool) {
785 t := styles.CurrentTheme()
786 message := ""
787 switch {
788 case v.result.IsError:
789 message = v.renderToolError()
790 case v.cancelled:
791 message = t.S().Base.Foreground(t.FgSubtle).Render("Canceled.")
792 case v.result.ToolCallID == "":
793 if v.permissionRequested && !v.permissionGranted {
794 message = t.S().Base.Foreground(t.FgSubtle).Render("Requesting for permission...")
795 } else {
796 message = t.S().Base.Foreground(t.FgSubtle).Render("Waiting for tool response...")
797 }
798 default:
799 return "", false
800 }
801
802 message = t.S().Base.PaddingLeft(2).Render(message)
803 return lipgloss.JoinVertical(lipgloss.Left, header, "", message), true
804}
805
806func joinHeaderBody(header, body string) string {
807 t := styles.CurrentTheme()
808 if body == "" {
809 return header
810 }
811 body = t.S().Base.PaddingLeft(2).Render(body)
812 return lipgloss.JoinVertical(lipgloss.Left, header, "", body)
813}
814
815func renderPlainContent(v *toolCallCmp, content string) string {
816 t := styles.CurrentTheme()
817 content = strings.ReplaceAll(content, "\r\n", "\n") // Normalize line endings
818 content = strings.ReplaceAll(content, "\t", " ") // Replace tabs with spaces
819 content = strings.TrimSpace(content)
820 lines := strings.Split(content, "\n")
821
822 width := v.textWidth() - 2
823 var out []string
824 for i, ln := range lines {
825 if i >= responseContextHeight {
826 break
827 }
828 ln = ansiext.Escape(ln)
829 ln = " " + ln
830 if len(ln) > width {
831 ln = v.fit(ln, width)
832 }
833 out = append(out, t.S().Muted.
834 Width(width).
835 Background(t.BgBaseLighter).
836 Render(ln))
837 }
838
839 if len(lines) > responseContextHeight {
840 out = append(out, t.S().Muted.
841 Background(t.BgBaseLighter).
842 Width(width).
843 Render(fmt.Sprintf("… (%d lines)", len(lines)-responseContextHeight)))
844 }
845
846 return strings.Join(out, "\n")
847}
848
849func renderMarkdownContent(v *toolCallCmp, content string) string {
850 t := styles.CurrentTheme()
851 content = strings.ReplaceAll(content, "\r\n", "\n")
852 content = strings.ReplaceAll(content, "\t", " ")
853 content = strings.TrimSpace(content)
854
855 width := v.textWidth() - 2
856 width = min(width, 120)
857
858 renderer := styles.GetPlainMarkdownRenderer(width)
859 rendered, err := renderer.Render(content)
860 if err != nil {
861 return renderPlainContent(v, content)
862 }
863
864 lines := strings.Split(rendered, "\n")
865
866 var out []string
867 for i, ln := range lines {
868 if i >= responseContextHeight {
869 break
870 }
871 out = append(out, ln)
872 }
873
874 style := t.S().Muted.Background(t.BgBaseLighter)
875 if len(lines) > responseContextHeight {
876 out = append(out, style.
877 Width(width-2).
878 Render(fmt.Sprintf("… (%d lines)", len(lines)-responseContextHeight)))
879 }
880
881 return style.Render(strings.Join(out, "\n"))
882}
883
884func getDigits(n int) int {
885 if n == 0 {
886 return 1
887 }
888 if n < 0 {
889 n = -n
890 }
891
892 digits := 0
893 for n > 0 {
894 n /= 10
895 digits++
896 }
897
898 return digits
899}
900
901func renderCodeContent(v *toolCallCmp, path, content string, offset int) string {
902 t := styles.CurrentTheme()
903 content = strings.ReplaceAll(content, "\r\n", "\n") // Normalize line endings
904 content = strings.ReplaceAll(content, "\t", " ") // Replace tabs with spaces
905 truncated := truncateHeight(content, responseContextHeight)
906
907 lines := strings.Split(truncated, "\n")
908 for i, ln := range lines {
909 lines[i] = ansiext.Escape(ln)
910 }
911
912 bg := t.BgBase
913 highlighted, _ := highlight.SyntaxHighlight(strings.Join(lines, "\n"), path, bg)
914 lines = strings.Split(highlighted, "\n")
915
916 if len(strings.Split(content, "\n")) > responseContextHeight {
917 lines = append(lines, t.S().Muted.
918 Background(bg).
919 Render(fmt.Sprintf(" …(%d lines)", len(strings.Split(content, "\n"))-responseContextHeight)))
920 }
921
922 maxLineNumber := len(lines) + offset
923 maxDigits := getDigits(maxLineNumber)
924 numFmt := fmt.Sprintf("%%%dd", maxDigits)
925 const numPR, numPL, codePR, codePL = 1, 1, 1, 2
926 w := v.textWidth() - maxDigits - numPL - numPR - 2 // -2 for left padding
927 for i, ln := range lines {
928 num := t.S().Base.
929 Foreground(t.FgMuted).
930 Background(t.BgBase).
931 PaddingRight(1).
932 PaddingLeft(1).
933 Render(fmt.Sprintf(numFmt, i+1+offset))
934 lines[i] = lipgloss.JoinHorizontal(lipgloss.Left,
935 num,
936 t.S().Base.
937 Width(w).
938 Background(bg).
939 PaddingRight(1).
940 PaddingLeft(2).
941 Render(v.fit(ln, w-codePL-codePR)),
942 )
943 }
944
945 return lipgloss.JoinVertical(lipgloss.Left, lines...)
946}
947
948func (v *toolCallCmp) renderToolError() string {
949 t := styles.CurrentTheme()
950 err := strings.ReplaceAll(v.result.Content, "\n", " ")
951 errTag := t.S().Base.Padding(0, 1).Background(t.Red).Foreground(t.White).Render("ERROR")
952 err = fmt.Sprintf("%s %s", errTag, t.S().Base.Foreground(t.FgHalfMuted).Render(v.fit(err, v.textWidth()-2-lipgloss.Width(errTag))))
953 return err
954}
955
956func truncateHeight(s string, h int) string {
957 lines := strings.Split(s, "\n")
958 if len(lines) > h {
959 return strings.Join(lines[:h], "\n")
960 }
961 return s
962}
963
964func prettifyToolName(name string) string {
965 switch name {
966 case agent.AgentToolName:
967 return "Agent"
968 case tools.BashToolName:
969 return "Bash"
970 case tools.DownloadToolName:
971 return "Download"
972 case tools.EditToolName:
973 return "Edit"
974 case tools.MultiEditToolName:
975 return "Multi-Edit"
976 case tools.FetchToolName:
977 return "Fetch"
978 case tools.WebFetchToolName:
979 return "Fetching"
980 case tools.GlobToolName:
981 return "Glob"
982 case tools.GrepToolName:
983 return "Grep"
984 case tools.LSToolName:
985 return "List"
986 case tools.SourcegraphToolName:
987 return "Sourcegraph"
988 case tools.ViewToolName:
989 return "View"
990 case tools.WriteToolName:
991 return "Write"
992 default:
993 return name
994 }
995}