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 simpleFetchRenderer{} })
172 registry.register(tools.AgenticFetchToolName, func() renderer { return agenticFetchRenderer{} })
173 registry.register(tools.WebFetchToolName, func() renderer { return webFetchRenderer{} })
174 registry.register(tools.GlobToolName, func() renderer { return globRenderer{} })
175 registry.register(tools.GrepToolName, func() renderer { return grepRenderer{} })
176 registry.register(tools.LSToolName, func() renderer { return lsRenderer{} })
177 registry.register(tools.SourcegraphToolName, func() renderer { return sourcegraphRenderer{} })
178 registry.register(tools.DiagnosticsToolName, func() renderer { return diagnosticsRenderer{} })
179 registry.register(agent.AgentToolName, func() renderer { return agentRenderer{} })
180}
181
182// -----------------------------------------------------------------------------
183// Generic renderer
184// -----------------------------------------------------------------------------
185
186// genericRenderer handles unknown tool types with basic parameter display
187type genericRenderer struct {
188 baseRenderer
189}
190
191// Render displays the tool call with its raw input and plain content output
192func (gr genericRenderer) Render(v *toolCallCmp) string {
193 return gr.renderWithParams(v, prettifyToolName(v.call.Name), []string{v.call.Input}, func() string {
194 return renderPlainContent(v, v.result.Content)
195 })
196}
197
198// -----------------------------------------------------------------------------
199// Bash renderer
200// -----------------------------------------------------------------------------
201
202// bashRenderer handles bash command execution display
203type bashRenderer struct {
204 baseRenderer
205}
206
207// Render displays the bash command with sanitized newlines and plain output
208func (br bashRenderer) Render(v *toolCallCmp) string {
209 var params tools.BashParams
210 if err := br.unmarshalParams(v.call.Input, ¶ms); err != nil {
211 return br.renderError(v, "Invalid bash parameters")
212 }
213
214 cmd := strings.ReplaceAll(params.Command, "\n", " ")
215 cmd = strings.ReplaceAll(cmd, "\t", " ")
216 args := newParamBuilder().addMain(cmd).build()
217
218 return br.renderWithParams(v, "Bash", args, func() string {
219 var meta tools.BashResponseMetadata
220 if err := br.unmarshalParams(v.result.Metadata, &meta); err != nil {
221 return renderPlainContent(v, v.result.Content)
222 }
223 // for backwards compatibility with older tool calls.
224 if meta.Output == "" && v.result.Content != tools.BashNoOutput {
225 meta.Output = v.result.Content
226 }
227
228 if meta.Output == "" {
229 return ""
230 }
231 return renderPlainContent(v, meta.Output)
232 })
233}
234
235// -----------------------------------------------------------------------------
236// View renderer
237// -----------------------------------------------------------------------------
238
239// viewRenderer handles file viewing with syntax highlighting and line numbers
240type viewRenderer struct {
241 baseRenderer
242}
243
244// Render displays file content with optional limit and offset parameters
245func (vr viewRenderer) Render(v *toolCallCmp) string {
246 var params tools.ViewParams
247 if err := vr.unmarshalParams(v.call.Input, ¶ms); err != nil {
248 return vr.renderError(v, "Invalid view parameters")
249 }
250
251 file := fsext.PrettyPath(params.FilePath)
252 args := newParamBuilder().
253 addMain(file).
254 addKeyValue("limit", formatNonZero(params.Limit)).
255 addKeyValue("offset", formatNonZero(params.Offset)).
256 build()
257
258 return vr.renderWithParams(v, "View", args, func() string {
259 var meta tools.ViewResponseMetadata
260 if err := vr.unmarshalParams(v.result.Metadata, &meta); err != nil {
261 return renderPlainContent(v, v.result.Content)
262 }
263 return renderCodeContent(v, meta.FilePath, meta.Content, params.Offset)
264 })
265}
266
267// formatNonZero returns string representation of non-zero integers, empty string for zero
268func formatNonZero(value int) string {
269 if value == 0 {
270 return ""
271 }
272 return fmt.Sprintf("%d", value)
273}
274
275// -----------------------------------------------------------------------------
276// Edit renderer
277// -----------------------------------------------------------------------------
278
279// editRenderer handles file editing with diff visualization
280type editRenderer struct {
281 baseRenderer
282}
283
284// Render displays the edited file with a formatted diff of changes
285func (er editRenderer) Render(v *toolCallCmp) string {
286 t := styles.CurrentTheme()
287 var params tools.EditParams
288 var args []string
289 if err := er.unmarshalParams(v.call.Input, ¶ms); err == nil {
290 file := fsext.PrettyPath(params.FilePath)
291 args = newParamBuilder().addMain(file).build()
292 }
293
294 return er.renderWithParams(v, "Edit", args, func() string {
295 var meta tools.EditResponseMetadata
296 if err := er.unmarshalParams(v.result.Metadata, &meta); err != nil {
297 return renderPlainContent(v, v.result.Content)
298 }
299
300 formatter := core.DiffFormatter().
301 Before(fsext.PrettyPath(params.FilePath), meta.OldContent).
302 After(fsext.PrettyPath(params.FilePath), meta.NewContent).
303 Width(v.textWidth() - 2) // -2 for padding
304 if v.textWidth() > 120 {
305 formatter = formatter.Split()
306 }
307 // add a message to the bottom if the content was truncated
308 formatted := formatter.String()
309 if lipgloss.Height(formatted) > responseContextHeight {
310 contentLines := strings.Split(formatted, "\n")
311 truncateMessage := t.S().Muted.
312 Background(t.BgBaseLighter).
313 PaddingLeft(2).
314 Width(v.textWidth() - 2).
315 Render(fmt.Sprintf("… (%d lines)", len(contentLines)-responseContextHeight))
316 formatted = strings.Join(contentLines[:responseContextHeight], "\n") + "\n" + truncateMessage
317 }
318 return formatted
319 })
320}
321
322// -----------------------------------------------------------------------------
323// Multi-Edit renderer
324// -----------------------------------------------------------------------------
325
326// multiEditRenderer handles multiple file edits with diff visualization
327type multiEditRenderer struct {
328 baseRenderer
329}
330
331// Render displays the multi-edited file with a formatted diff of changes
332func (mer multiEditRenderer) Render(v *toolCallCmp) string {
333 t := styles.CurrentTheme()
334 var params tools.MultiEditParams
335 var args []string
336 if err := mer.unmarshalParams(v.call.Input, ¶ms); err == nil {
337 file := fsext.PrettyPath(params.FilePath)
338 editsCount := len(params.Edits)
339 args = newParamBuilder().
340 addMain(file).
341 addKeyValue("edits", fmt.Sprintf("%d", editsCount)).
342 build()
343 }
344
345 return mer.renderWithParams(v, "Multi-Edit", args, func() string {
346 var meta tools.MultiEditResponseMetadata
347 if err := mer.unmarshalParams(v.result.Metadata, &meta); err != nil {
348 return renderPlainContent(v, v.result.Content)
349 }
350
351 formatter := core.DiffFormatter().
352 Before(fsext.PrettyPath(params.FilePath), meta.OldContent).
353 After(fsext.PrettyPath(params.FilePath), meta.NewContent).
354 Width(v.textWidth() - 2) // -2 for padding
355 if v.textWidth() > 120 {
356 formatter = formatter.Split()
357 }
358 // add a message to the bottom if the content was truncated
359 formatted := formatter.String()
360 if lipgloss.Height(formatted) > responseContextHeight {
361 contentLines := strings.Split(formatted, "\n")
362 truncateMessage := t.S().Muted.
363 Background(t.BgBaseLighter).
364 PaddingLeft(2).
365 Width(v.textWidth() - 4).
366 Render(fmt.Sprintf("… (%d lines)", len(contentLines)-responseContextHeight))
367 formatted = strings.Join(contentLines[:responseContextHeight], "\n") + "\n" + truncateMessage
368 }
369 return formatted
370 })
371}
372
373// -----------------------------------------------------------------------------
374// Write renderer
375// -----------------------------------------------------------------------------
376
377// writeRenderer handles file writing with syntax-highlighted content preview
378type writeRenderer struct {
379 baseRenderer
380}
381
382// Render displays the file being written with syntax highlighting
383func (wr writeRenderer) Render(v *toolCallCmp) string {
384 var params tools.WriteParams
385 var args []string
386 var file string
387 if err := wr.unmarshalParams(v.call.Input, ¶ms); err == nil {
388 file = fsext.PrettyPath(params.FilePath)
389 args = newParamBuilder().addMain(file).build()
390 }
391
392 return wr.renderWithParams(v, "Write", args, func() string {
393 return renderCodeContent(v, file, params.Content, 0)
394 })
395}
396
397// -----------------------------------------------------------------------------
398// Fetch renderer
399// -----------------------------------------------------------------------------
400
401// simpleFetchRenderer handles URL fetching with format-specific content display
402type simpleFetchRenderer struct {
403 baseRenderer
404}
405
406// Render displays the fetched URL with format and timeout parameters
407func (fr simpleFetchRenderer) Render(v *toolCallCmp) string {
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 addKeyValue("format", params.Format).
414 addKeyValue("timeout", formatTimeout(params.Timeout)).
415 build()
416 }
417
418 return fr.renderWithParams(v, "Fetch", args, func() string {
419 file := fr.getFileExtension(params.Format)
420 return renderCodeContent(v, file, v.result.Content, 0)
421 })
422}
423
424// getFileExtension returns appropriate file extension for syntax highlighting
425func (fr simpleFetchRenderer) getFileExtension(format string) string {
426 switch format {
427 case "text":
428 return "fetch.txt"
429 case "html":
430 return "fetch.html"
431 default:
432 return "fetch.md"
433 }
434}
435
436// -----------------------------------------------------------------------------
437// Agentic fetch renderer
438// -----------------------------------------------------------------------------
439
440// agenticFetchRenderer handles URL fetching with prompt parameter and nested tool calls
441type agenticFetchRenderer struct {
442 baseRenderer
443}
444
445// Render displays the fetched URL with prompt parameter and nested tool calls
446func (fr agenticFetchRenderer) Render(v *toolCallCmp) string {
447 t := styles.CurrentTheme()
448 var params tools.AgenticFetchParams
449 var args []string
450 if err := fr.unmarshalParams(v.call.Input, ¶ms); err == nil {
451 args = newParamBuilder().
452 addMain(params.URL).
453 build()
454 }
455
456 prompt := params.Prompt
457 prompt = strings.ReplaceAll(prompt, "\n", " ")
458
459 header := fr.makeHeader(v, "Agentic Fetch", v.textWidth(), args...)
460 if res, done := earlyState(header, v); v.cancelled && done {
461 return res
462 }
463
464 taskTag := t.S().Base.Bold(true).Padding(0, 1).MarginLeft(2).Background(t.GreenLight).Foreground(t.Border).Render("Prompt")
465 remainingWidth := v.textWidth() - (lipgloss.Width(taskTag) + 1)
466 remainingWidth = min(remainingWidth, 120-(lipgloss.Width(taskTag)+1))
467 prompt = t.S().Muted.Width(remainingWidth).Render(prompt)
468 header = lipgloss.JoinVertical(
469 lipgloss.Left,
470 header,
471 "",
472 lipgloss.JoinHorizontal(
473 lipgloss.Left,
474 taskTag,
475 " ",
476 prompt,
477 ),
478 )
479 childTools := tree.Root(header)
480
481 for _, call := range v.nestedToolCalls {
482 call.SetSize(remainingWidth, 1)
483 childTools.Child(call.View())
484 }
485 parts := []string{
486 childTools.Enumerator(RoundedEnumeratorWithWidth(2, lipgloss.Width(taskTag)-3)).String(),
487 }
488
489 if v.result.ToolCallID == "" {
490 v.spinning = true
491 parts = append(parts, "", v.anim.View())
492 } else {
493 v.spinning = false
494 }
495
496 header = lipgloss.JoinVertical(
497 lipgloss.Left,
498 parts...,
499 )
500
501 if v.result.ToolCallID == "" {
502 return header
503 }
504 body := renderMarkdownContent(v, v.result.Content)
505 return joinHeaderBody(header, body)
506}
507
508// formatTimeout converts timeout seconds to duration string
509func formatTimeout(timeout int) string {
510 if timeout == 0 {
511 return ""
512 }
513 return (time.Duration(timeout) * time.Second).String()
514}
515
516// -----------------------------------------------------------------------------
517// Web fetch renderer
518// -----------------------------------------------------------------------------
519
520// webFetchRenderer handles web page fetching with simplified URL display
521type webFetchRenderer struct {
522 baseRenderer
523}
524
525// Render displays a compact view of web_fetch with just the URL in a link style
526func (wfr webFetchRenderer) Render(v *toolCallCmp) string {
527 var params tools.WebFetchParams
528 var args []string
529 if err := wfr.unmarshalParams(v.call.Input, ¶ms); err == nil {
530 args = newParamBuilder().
531 addMain(params.URL).
532 build()
533 }
534
535 return wfr.renderWithParams(v, "Fetch", args, func() string {
536 return renderMarkdownContent(v, v.result.Content)
537 })
538}
539
540// -----------------------------------------------------------------------------
541// Download renderer
542// -----------------------------------------------------------------------------
543
544// downloadRenderer handles file downloading with URL and file path display
545type downloadRenderer struct {
546 baseRenderer
547}
548
549// Render displays the download URL and destination file path with timeout parameter
550func (dr downloadRenderer) Render(v *toolCallCmp) string {
551 var params tools.DownloadParams
552 var args []string
553 if err := dr.unmarshalParams(v.call.Input, ¶ms); err == nil {
554 args = newParamBuilder().
555 addMain(params.URL).
556 addKeyValue("file_path", fsext.PrettyPath(params.FilePath)).
557 addKeyValue("timeout", formatTimeout(params.Timeout)).
558 build()
559 }
560
561 return dr.renderWithParams(v, "Download", args, func() string {
562 return renderPlainContent(v, v.result.Content)
563 })
564}
565
566// -----------------------------------------------------------------------------
567// Glob renderer
568// -----------------------------------------------------------------------------
569
570// globRenderer handles file pattern matching with path filtering
571type globRenderer struct {
572 baseRenderer
573}
574
575// Render displays the glob pattern with optional path parameter
576func (gr globRenderer) Render(v *toolCallCmp) string {
577 var params tools.GlobParams
578 var args []string
579 if err := gr.unmarshalParams(v.call.Input, ¶ms); err == nil {
580 args = newParamBuilder().
581 addMain(params.Pattern).
582 addKeyValue("path", params.Path).
583 build()
584 }
585
586 return gr.renderWithParams(v, "Glob", args, func() string {
587 return renderPlainContent(v, v.result.Content)
588 })
589}
590
591// -----------------------------------------------------------------------------
592// Grep renderer
593// -----------------------------------------------------------------------------
594
595// grepRenderer handles content searching with pattern matching options
596type grepRenderer struct {
597 baseRenderer
598}
599
600// Render displays the search pattern with path, include, and literal text options
601func (gr grepRenderer) Render(v *toolCallCmp) string {
602 var params tools.GrepParams
603 var args []string
604 if err := gr.unmarshalParams(v.call.Input, ¶ms); err == nil {
605 args = newParamBuilder().
606 addMain(params.Pattern).
607 addKeyValue("path", params.Path).
608 addKeyValue("include", params.Include).
609 addFlag("literal", params.LiteralText).
610 build()
611 }
612
613 return gr.renderWithParams(v, "Grep", args, func() string {
614 return renderPlainContent(v, v.result.Content)
615 })
616}
617
618// -----------------------------------------------------------------------------
619// LS renderer
620// -----------------------------------------------------------------------------
621
622// lsRenderer handles directory listing with default path handling
623type lsRenderer struct {
624 baseRenderer
625}
626
627// Render displays the directory path, defaulting to current directory
628func (lr lsRenderer) Render(v *toolCallCmp) string {
629 var params tools.LSParams
630 var args []string
631 if err := lr.unmarshalParams(v.call.Input, ¶ms); err == nil {
632 path := params.Path
633 if path == "" {
634 path = "."
635 }
636 path = fsext.PrettyPath(path)
637
638 args = newParamBuilder().addMain(path).build()
639 }
640
641 return lr.renderWithParams(v, "List", args, func() string {
642 return renderPlainContent(v, v.result.Content)
643 })
644}
645
646// -----------------------------------------------------------------------------
647// Sourcegraph renderer
648// -----------------------------------------------------------------------------
649
650// sourcegraphRenderer handles code search with count and context options
651type sourcegraphRenderer struct {
652 baseRenderer
653}
654
655// Render displays the search query with optional count and context window parameters
656func (sr sourcegraphRenderer) Render(v *toolCallCmp) string {
657 var params tools.SourcegraphParams
658 var args []string
659 if err := sr.unmarshalParams(v.call.Input, ¶ms); err == nil {
660 args = newParamBuilder().
661 addMain(params.Query).
662 addKeyValue("count", formatNonZero(params.Count)).
663 addKeyValue("context", formatNonZero(params.ContextWindow)).
664 build()
665 }
666
667 return sr.renderWithParams(v, "Sourcegraph", args, func() string {
668 return renderPlainContent(v, v.result.Content)
669 })
670}
671
672// -----------------------------------------------------------------------------
673// Diagnostics renderer
674// -----------------------------------------------------------------------------
675
676// diagnosticsRenderer handles project-wide diagnostic information
677type diagnosticsRenderer struct {
678 baseRenderer
679}
680
681// Render displays project diagnostics with plain content formatting
682func (dr diagnosticsRenderer) Render(v *toolCallCmp) string {
683 args := newParamBuilder().addMain("project").build()
684
685 return dr.renderWithParams(v, "Diagnostics", args, func() string {
686 return renderPlainContent(v, v.result.Content)
687 })
688}
689
690// -----------------------------------------------------------------------------
691// Task renderer
692// -----------------------------------------------------------------------------
693
694// agentRenderer handles project-wide diagnostic information
695type agentRenderer struct {
696 baseRenderer
697}
698
699func RoundedEnumeratorWithWidth(lPadding, width int) tree.Enumerator {
700 if width == 0 {
701 width = 2
702 }
703 if lPadding == 0 {
704 lPadding = 1
705 }
706 return func(children tree.Children, index int) string {
707 line := strings.Repeat("─", width)
708 padding := strings.Repeat(" ", lPadding)
709 if children.Length()-1 == index {
710 return padding + "╰" + line
711 }
712 return padding + "├" + line
713 }
714}
715
716// Render displays agent task parameters and result content
717func (tr agentRenderer) Render(v *toolCallCmp) string {
718 t := styles.CurrentTheme()
719 var params agent.AgentParams
720 tr.unmarshalParams(v.call.Input, ¶ms)
721
722 prompt := params.Prompt
723 prompt = strings.ReplaceAll(prompt, "\n", " ")
724
725 header := tr.makeHeader(v, "Agent", v.textWidth())
726 if res, done := earlyState(header, v); v.cancelled && done {
727 return res
728 }
729 taskTag := t.S().Base.Bold(true).Padding(0, 1).MarginLeft(2).Background(t.BlueLight).Foreground(t.White).Render("Task")
730 remainingWidth := v.textWidth() - lipgloss.Width(header) - lipgloss.Width(taskTag) - 2
731 remainingWidth = min(remainingWidth, 120-lipgloss.Width(taskTag)-2)
732 prompt = t.S().Muted.Width(remainingWidth).Render(prompt)
733 header = lipgloss.JoinVertical(
734 lipgloss.Left,
735 header,
736 "",
737 lipgloss.JoinHorizontal(
738 lipgloss.Left,
739 taskTag,
740 " ",
741 prompt,
742 ),
743 )
744 childTools := tree.Root(header)
745
746 for _, call := range v.nestedToolCalls {
747 call.SetSize(remainingWidth, 1)
748 childTools.Child(call.View())
749 }
750 parts := []string{
751 childTools.Enumerator(RoundedEnumeratorWithWidth(2, lipgloss.Width(taskTag)-3)).String(),
752 }
753
754 if v.result.ToolCallID == "" {
755 v.spinning = true
756 parts = append(parts, "", v.anim.View())
757 } else {
758 v.spinning = false
759 }
760
761 header = lipgloss.JoinVertical(
762 lipgloss.Left,
763 parts...,
764 )
765
766 if v.result.ToolCallID == "" {
767 return header
768 }
769
770 body := renderMarkdownContent(v, v.result.Content)
771 return joinHeaderBody(header, body)
772}
773
774// renderParamList renders params, params[0] (params[1]=params[2] ....)
775func renderParamList(nested bool, paramsWidth int, params ...string) string {
776 t := styles.CurrentTheme()
777 if len(params) == 0 {
778 return ""
779 }
780 mainParam := params[0]
781 if paramsWidth >= 0 && lipgloss.Width(mainParam) > paramsWidth {
782 mainParam = ansi.Truncate(mainParam, paramsWidth, "…")
783 }
784
785 if len(params) == 1 {
786 if nested {
787 return t.S().Muted.Render(mainParam)
788 }
789 return t.S().Subtle.Render(mainParam)
790 }
791 otherParams := params[1:]
792 // create pairs of key/value
793 // if odd number of params, the last one is a key without value
794 if len(otherParams)%2 != 0 {
795 otherParams = append(otherParams, "")
796 }
797 parts := make([]string, 0, len(otherParams)/2)
798 for i := 0; i < len(otherParams); i += 2 {
799 key := otherParams[i]
800 value := otherParams[i+1]
801 if value == "" {
802 continue
803 }
804 parts = append(parts, fmt.Sprintf("%s=%s", key, value))
805 }
806
807 partsRendered := strings.Join(parts, ", ")
808 remainingWidth := paramsWidth - lipgloss.Width(partsRendered) - 3 // count for " ()"
809 if remainingWidth < 30 {
810 if nested {
811 return t.S().Muted.Render(mainParam)
812 }
813 // No space for the params, just show the main
814 return t.S().Subtle.Render(mainParam)
815 }
816
817 if len(parts) > 0 {
818 mainParam = fmt.Sprintf("%s (%s)", mainParam, strings.Join(parts, ", "))
819 }
820
821 if nested {
822 return t.S().Muted.Render(ansi.Truncate(mainParam, paramsWidth, "…"))
823 }
824 return t.S().Subtle.Render(ansi.Truncate(mainParam, paramsWidth, "…"))
825}
826
827// earlyState returns immediately‑rendered error/cancelled/ongoing states.
828func earlyState(header string, v *toolCallCmp) (string, bool) {
829 t := styles.CurrentTheme()
830 message := ""
831 switch {
832 case v.result.IsError:
833 message = v.renderToolError()
834 case v.cancelled:
835 message = t.S().Base.Foreground(t.FgSubtle).Render("Canceled.")
836 case v.result.ToolCallID == "":
837 if v.permissionRequested && !v.permissionGranted {
838 message = t.S().Base.Foreground(t.FgSubtle).Render("Requesting for permission...")
839 } else {
840 message = t.S().Base.Foreground(t.FgSubtle).Render("Waiting for tool response...")
841 }
842 default:
843 return "", false
844 }
845
846 message = t.S().Base.PaddingLeft(2).Render(message)
847 return lipgloss.JoinVertical(lipgloss.Left, header, "", message), true
848}
849
850func joinHeaderBody(header, body string) string {
851 t := styles.CurrentTheme()
852 if body == "" {
853 return header
854 }
855 body = t.S().Base.PaddingLeft(2).Render(body)
856 return lipgloss.JoinVertical(lipgloss.Left, header, "", body)
857}
858
859func renderPlainContent(v *toolCallCmp, content string) string {
860 t := styles.CurrentTheme()
861 content = strings.ReplaceAll(content, "\r\n", "\n") // Normalize line endings
862 content = strings.ReplaceAll(content, "\t", " ") // Replace tabs with spaces
863 content = strings.TrimSpace(content)
864 lines := strings.Split(content, "\n")
865
866 width := v.textWidth() - 2
867 var out []string
868 for i, ln := range lines {
869 if i >= responseContextHeight {
870 break
871 }
872 ln = ansiext.Escape(ln)
873 ln = " " + ln
874 if len(ln) > width {
875 ln = v.fit(ln, width)
876 }
877 out = append(out, t.S().Muted.
878 Width(width).
879 Background(t.BgBaseLighter).
880 Render(ln))
881 }
882
883 if len(lines) > responseContextHeight {
884 out = append(out, t.S().Muted.
885 Background(t.BgBaseLighter).
886 Width(width).
887 Render(fmt.Sprintf("… (%d lines)", len(lines)-responseContextHeight)))
888 }
889
890 return strings.Join(out, "\n")
891}
892
893func renderMarkdownContent(v *toolCallCmp, content string) string {
894 t := styles.CurrentTheme()
895 content = strings.ReplaceAll(content, "\r\n", "\n")
896 content = strings.ReplaceAll(content, "\t", " ")
897 content = strings.TrimSpace(content)
898
899 width := v.textWidth() - 2
900 width = min(width, 120)
901
902 renderer := styles.GetPlainMarkdownRenderer(width)
903 rendered, err := renderer.Render(content)
904 if err != nil {
905 return renderPlainContent(v, content)
906 }
907
908 lines := strings.Split(rendered, "\n")
909
910 var out []string
911 for i, ln := range lines {
912 if i >= responseContextHeight {
913 break
914 }
915 out = append(out, ln)
916 }
917
918 style := t.S().Muted.Background(t.BgBaseLighter)
919 if len(lines) > responseContextHeight {
920 out = append(out, style.
921 Width(width-2).
922 Render(fmt.Sprintf("… (%d lines)", len(lines)-responseContextHeight)))
923 }
924
925 return style.Render(strings.Join(out, "\n"))
926}
927
928func getDigits(n int) int {
929 if n == 0 {
930 return 1
931 }
932 if n < 0 {
933 n = -n
934 }
935
936 digits := 0
937 for n > 0 {
938 n /= 10
939 digits++
940 }
941
942 return digits
943}
944
945func renderCodeContent(v *toolCallCmp, path, content string, offset int) string {
946 t := styles.CurrentTheme()
947 content = strings.ReplaceAll(content, "\r\n", "\n") // Normalize line endings
948 content = strings.ReplaceAll(content, "\t", " ") // Replace tabs with spaces
949 truncated := truncateHeight(content, responseContextHeight)
950
951 lines := strings.Split(truncated, "\n")
952 for i, ln := range lines {
953 lines[i] = ansiext.Escape(ln)
954 }
955
956 bg := t.BgBase
957 highlighted, _ := highlight.SyntaxHighlight(strings.Join(lines, "\n"), path, bg)
958 lines = strings.Split(highlighted, "\n")
959
960 if len(strings.Split(content, "\n")) > responseContextHeight {
961 lines = append(lines, t.S().Muted.
962 Background(bg).
963 Render(fmt.Sprintf(" …(%d lines)", len(strings.Split(content, "\n"))-responseContextHeight)))
964 }
965
966 maxLineNumber := len(lines) + offset
967 maxDigits := getDigits(maxLineNumber)
968 numFmt := fmt.Sprintf("%%%dd", maxDigits)
969 const numPR, numPL, codePR, codePL = 1, 1, 1, 2
970 w := v.textWidth() - maxDigits - numPL - numPR - 2 // -2 for left padding
971 for i, ln := range lines {
972 num := t.S().Base.
973 Foreground(t.FgMuted).
974 Background(t.BgBase).
975 PaddingRight(1).
976 PaddingLeft(1).
977 Render(fmt.Sprintf(numFmt, i+1+offset))
978 lines[i] = lipgloss.JoinHorizontal(lipgloss.Left,
979 num,
980 t.S().Base.
981 Width(w).
982 Background(bg).
983 PaddingRight(1).
984 PaddingLeft(2).
985 Render(v.fit(ln, w-codePL-codePR)),
986 )
987 }
988
989 return lipgloss.JoinVertical(lipgloss.Left, lines...)
990}
991
992func (v *toolCallCmp) renderToolError() string {
993 t := styles.CurrentTheme()
994 err := strings.ReplaceAll(v.result.Content, "\n", " ")
995 errTag := t.S().Base.Padding(0, 1).Background(t.Red).Foreground(t.White).Render("ERROR")
996 err = fmt.Sprintf("%s %s", errTag, t.S().Base.Foreground(t.FgHalfMuted).Render(v.fit(err, v.textWidth()-2-lipgloss.Width(errTag))))
997 return err
998}
999
1000func truncateHeight(s string, h int) string {
1001 lines := strings.Split(s, "\n")
1002 if len(lines) > h {
1003 return strings.Join(lines[:h], "\n")
1004 }
1005 return s
1006}
1007
1008func prettifyToolName(name string) string {
1009 switch name {
1010 case agent.AgentToolName:
1011 return "Agent"
1012 case tools.BashToolName:
1013 return "Bash"
1014 case tools.DownloadToolName:
1015 return "Download"
1016 case tools.EditToolName:
1017 return "Edit"
1018 case tools.MultiEditToolName:
1019 return "Multi-Edit"
1020 case tools.FetchToolName:
1021 return "Fetch"
1022 case tools.AgenticFetchToolName:
1023 return "Agentic Fetch"
1024 case tools.WebFetchToolName:
1025 return "Fetching"
1026 case tools.GlobToolName:
1027 return "Glob"
1028 case tools.GrepToolName:
1029 return "Grep"
1030 case tools.LSToolName:
1031 return "List"
1032 case tools.SourcegraphToolName:
1033 return "Sourcegraph"
1034 case tools.ViewToolName:
1035 return "View"
1036 case tools.WriteToolName:
1037 return "Write"
1038 default:
1039 return name
1040 }
1041}