1package messages
2
3import (
4 "encoding/json"
5 "fmt"
6 "strings"
7 "time"
8
9 "github.com/charmbracelet/crush/internal/fsext"
10 "github.com/charmbracelet/crush/internal/llm/agent"
11 "github.com/charmbracelet/crush/internal/llm/tools"
12 "github.com/charmbracelet/crush/internal/tui/components/core"
13 "github.com/charmbracelet/crush/internal/tui/highlight"
14 "github.com/charmbracelet/crush/internal/tui/styles"
15 "github.com/charmbracelet/lipgloss/v2"
16 "github.com/charmbracelet/lipgloss/v2/tree"
17 "github.com/charmbracelet/x/ansi"
18)
19
20// responseContextHeight limits the number of lines displayed in tool output
21const responseContextHeight = 10
22
23// renderer defines the interface for tool-specific rendering implementations
24type renderer interface {
25 // Render returns the complete (already styled) tool‑call view, not
26 // including the outer border.
27 Render(v *toolCallCmp) string
28}
29
30// rendererFactory creates new renderer instances
31type rendererFactory func() renderer
32
33// renderRegistry manages the mapping of tool names to their renderers
34type renderRegistry map[string]rendererFactory
35
36// register adds a new renderer factory to the registry
37func (rr renderRegistry) register(name string, f rendererFactory) { rr[name] = f }
38
39// lookup retrieves a renderer for the given tool name, falling back to generic renderer
40func (rr renderRegistry) lookup(name string) renderer {
41 if f, ok := rr[name]; ok {
42 return f()
43 }
44 return genericRenderer{} // sensible fallback
45}
46
47// registry holds all registered tool renderers
48var registry = renderRegistry{}
49
50// baseRenderer provides common functionality for all tool renderers
51type baseRenderer struct{}
52
53// paramBuilder helps construct parameter lists for tool headers
54type paramBuilder struct {
55 args []string
56}
57
58// newParamBuilder creates a new parameter builder
59func newParamBuilder() *paramBuilder {
60 return ¶mBuilder{args: make([]string, 0)}
61}
62
63// addMain adds the main parameter (first argument)
64func (pb *paramBuilder) addMain(value string) *paramBuilder {
65 if value != "" {
66 pb.args = append(pb.args, value)
67 }
68 return pb
69}
70
71// addKeyValue adds a key-value pair parameter
72func (pb *paramBuilder) addKeyValue(key, value string) *paramBuilder {
73 if value != "" {
74 pb.args = append(pb.args, key, value)
75 }
76 return pb
77}
78
79// addFlag adds a boolean flag parameter
80func (pb *paramBuilder) addFlag(key string, value bool) *paramBuilder {
81 if value {
82 pb.args = append(pb.args, key, "true")
83 }
84 return pb
85}
86
87// build returns the final parameter list
88func (pb *paramBuilder) build() []string {
89 return pb.args
90}
91
92// renderWithParams provides a common rendering pattern for tools with parameters
93func (br baseRenderer) renderWithParams(v *toolCallCmp, toolName string, args []string, contentRenderer func() string) string {
94 width := v.textWidth()
95 if v.isNested {
96 width -= 4 // Adjust for nested tool call indentation
97 }
98 header := br.makeHeader(v, toolName, width, args...)
99 if v.isNested {
100 return v.style().Render(header)
101 }
102 if res, done := earlyState(header, v); done {
103 return res
104 }
105 body := contentRenderer()
106 return joinHeaderBody(header, body)
107}
108
109// unmarshalParams safely unmarshal JSON parameters
110func (br baseRenderer) unmarshalParams(input string, target any) error {
111 return json.Unmarshal([]byte(input), target)
112}
113
114// makeHeader builds the tool call header with status icon and parameters for a nested tool call.
115func (br baseRenderer) makeNestedHeader(v *toolCallCmp, tool string, width int, params ...string) string {
116 t := styles.CurrentTheme()
117 icon := t.S().Base.Foreground(t.GreenDark).Render(styles.ToolPending)
118 if v.result.ToolCallID != "" {
119 if v.result.IsError {
120 icon = t.S().Base.Foreground(t.RedDark).Render(styles.ToolError)
121 } else {
122 icon = t.S().Base.Foreground(t.Green).Render(styles.ToolSuccess)
123 }
124 } else if v.cancelled {
125 icon = t.S().Muted.Render(styles.ToolPending)
126 }
127 tool = t.S().Base.Foreground(t.FgHalfMuted).Render(tool)
128 prefix := fmt.Sprintf("%s %s ", icon, tool)
129 return prefix + renderParamList(true, width-lipgloss.Width(prefix), params...)
130}
131
132// makeHeader builds "<Tool>: param (key=value)" and truncates as needed.
133func (br baseRenderer) makeHeader(v *toolCallCmp, tool string, width int, params ...string) string {
134 if v.isNested {
135 return br.makeNestedHeader(v, tool, width, params...)
136 }
137 t := styles.CurrentTheme()
138 icon := t.S().Base.Foreground(t.GreenDark).Render(styles.ToolPending)
139 if v.result.ToolCallID != "" {
140 if v.result.IsError {
141 icon = t.S().Base.Foreground(t.RedDark).Render(styles.ToolError)
142 } else {
143 icon = t.S().Base.Foreground(t.Green).Render(styles.ToolSuccess)
144 }
145 } else if v.cancelled {
146 icon = t.S().Muted.Render(styles.ToolPending)
147 }
148 tool = t.S().Base.Foreground(t.Blue).Render(tool)
149 prefix := fmt.Sprintf("%s %s ", icon, tool)
150 return prefix + renderParamList(false, width-lipgloss.Width(prefix), params...)
151}
152
153// renderError provides consistent error rendering
154func (br baseRenderer) renderError(v *toolCallCmp, message string) string {
155 t := styles.CurrentTheme()
156 header := br.makeHeader(v, prettifyToolName(v.call.Name), v.textWidth(), "")
157 errorTag := t.S().Base.Padding(0, 1).Background(t.Red).Foreground(t.White).Render("ERROR")
158 message = t.S().Base.Foreground(t.FgHalfMuted).Render(v.fit(message, v.textWidth()-3-lipgloss.Width(errorTag))) // -2 for padding and space
159 return joinHeaderBody(header, errorTag+" "+message)
160}
161
162// Register tool renderers
163func init() {
164 registry.register(tools.BashToolName, func() renderer { return bashRenderer{} })
165 registry.register(tools.DownloadToolName, func() renderer { return downloadRenderer{} })
166 registry.register(tools.ViewToolName, func() renderer { return viewRenderer{} })
167 registry.register(tools.EditToolName, func() renderer { return editRenderer{} })
168 registry.register(tools.WriteToolName, func() renderer { return writeRenderer{} })
169 registry.register(tools.FetchToolName, func() renderer { return fetchRenderer{} })
170 registry.register(tools.GlobToolName, func() renderer { return globRenderer{} })
171 registry.register(tools.GrepToolName, func() renderer { return grepRenderer{} })
172 registry.register(tools.LSToolName, func() renderer { return lsRenderer{} })
173 registry.register(tools.SourcegraphToolName, func() renderer { return sourcegraphRenderer{} })
174 registry.register(tools.DiagnosticsToolName, func() renderer { return diagnosticsRenderer{} })
175 registry.register(agent.AgentToolName, func() renderer { return agentRenderer{} })
176}
177
178// -----------------------------------------------------------------------------
179// Generic renderer
180// -----------------------------------------------------------------------------
181
182// genericRenderer handles unknown tool types with basic parameter display
183type genericRenderer struct {
184 baseRenderer
185}
186
187// Render displays the tool call with its raw input and plain content output
188func (gr genericRenderer) Render(v *toolCallCmp) string {
189 return gr.renderWithParams(v, prettifyToolName(v.call.Name), []string{v.call.Input}, func() string {
190 return renderPlainContent(v, v.result.Content)
191 })
192}
193
194// -----------------------------------------------------------------------------
195// Bash renderer
196// -----------------------------------------------------------------------------
197
198// bashRenderer handles bash command execution display
199type bashRenderer struct {
200 baseRenderer
201}
202
203// Render displays the bash command with sanitized newlines and plain output
204func (br bashRenderer) Render(v *toolCallCmp) string {
205 var params tools.BashParams
206 if err := br.unmarshalParams(v.call.Input, ¶ms); err != nil {
207 return br.renderError(v, "Invalid bash parameters")
208 }
209
210 cmd := strings.ReplaceAll(params.Command, "\n", " ")
211 cmd = strings.ReplaceAll(cmd, "\t", " ")
212 args := newParamBuilder().addMain(cmd).build()
213
214 return br.renderWithParams(v, "Bash", args, func() string {
215 if v.result.Content == tools.BashNoOutput {
216 return ""
217 }
218 return renderPlainContent(v, v.result.Content)
219 })
220}
221
222// -----------------------------------------------------------------------------
223// View renderer
224// -----------------------------------------------------------------------------
225
226// viewRenderer handles file viewing with syntax highlighting and line numbers
227type viewRenderer struct {
228 baseRenderer
229}
230
231// Render displays file content with optional limit and offset parameters
232func (vr viewRenderer) Render(v *toolCallCmp) string {
233 var params tools.ViewParams
234 if err := vr.unmarshalParams(v.call.Input, ¶ms); err != nil {
235 return vr.renderError(v, "Invalid view parameters")
236 }
237
238 file := fsext.PrettyPath(params.FilePath)
239 args := newParamBuilder().
240 addMain(file).
241 addKeyValue("limit", formatNonZero(params.Limit)).
242 addKeyValue("offset", formatNonZero(params.Offset)).
243 build()
244
245 return vr.renderWithParams(v, "View", args, func() string {
246 var meta tools.ViewResponseMetadata
247 if err := vr.unmarshalParams(v.result.Metadata, &meta); err != nil {
248 return renderPlainContent(v, v.result.Content)
249 }
250 return renderCodeContent(v, meta.FilePath, meta.Content, params.Offset)
251 })
252}
253
254// formatNonZero returns string representation of non-zero integers, empty string for zero
255func formatNonZero(value int) string {
256 if value == 0 {
257 return ""
258 }
259 return fmt.Sprintf("%d", value)
260}
261
262// -----------------------------------------------------------------------------
263// Edit renderer
264// -----------------------------------------------------------------------------
265
266// editRenderer handles file editing with diff visualization
267type editRenderer struct {
268 baseRenderer
269}
270
271// Render displays the edited file with a formatted diff of changes
272func (er editRenderer) Render(v *toolCallCmp) string {
273 t := styles.CurrentTheme()
274 var params tools.EditParams
275 var args []string
276 if err := er.unmarshalParams(v.call.Input, ¶ms); err == nil {
277 file := fsext.PrettyPath(params.FilePath)
278 args = newParamBuilder().addMain(file).build()
279 }
280
281 return er.renderWithParams(v, "Edit", args, func() string {
282 var meta tools.EditResponseMetadata
283 if err := er.unmarshalParams(v.result.Metadata, &meta); err != nil {
284 return renderPlainContent(v, v.result.Content)
285 }
286
287 formatter := core.DiffFormatter().
288 Before(fsext.PrettyPath(params.FilePath), meta.OldContent).
289 After(fsext.PrettyPath(params.FilePath), meta.NewContent).
290 Width(v.textWidth() - 2) // -2 for padding
291 if v.textWidth() > 120 {
292 formatter = formatter.Split()
293 }
294 // add a message to the bottom if the content was truncated
295 formatted := formatter.String()
296 if lipgloss.Height(formatted) > responseContextHeight {
297 contentLines := strings.Split(formatted, "\n")
298 truncateMessage := t.S().Muted.
299 Background(t.BgBaseLighter).
300 PaddingLeft(2).
301 Width(v.textWidth() - 4).
302 Render(fmt.Sprintf("… (%d lines)", len(contentLines)-responseContextHeight))
303 formatted = strings.Join(contentLines[:responseContextHeight], "\n") + "\n" + truncateMessage
304 }
305 return formatted
306 })
307}
308
309// -----------------------------------------------------------------------------
310// Write renderer
311// -----------------------------------------------------------------------------
312
313// writeRenderer handles file writing with syntax-highlighted content preview
314type writeRenderer struct {
315 baseRenderer
316}
317
318// Render displays the file being written with syntax highlighting
319func (wr writeRenderer) Render(v *toolCallCmp) string {
320 var params tools.WriteParams
321 var args []string
322 var file string
323 if err := wr.unmarshalParams(v.call.Input, ¶ms); err == nil {
324 file = fsext.PrettyPath(params.FilePath)
325 args = newParamBuilder().addMain(file).build()
326 }
327
328 return wr.renderWithParams(v, "Write", args, func() string {
329 return renderCodeContent(v, file, params.Content, 0)
330 })
331}
332
333// -----------------------------------------------------------------------------
334// Fetch renderer
335// -----------------------------------------------------------------------------
336
337// fetchRenderer handles URL fetching with format-specific content display
338type fetchRenderer struct {
339 baseRenderer
340}
341
342// Render displays the fetched URL with format and timeout parameters
343func (fr fetchRenderer) Render(v *toolCallCmp) string {
344 var params tools.FetchParams
345 var args []string
346 if err := fr.unmarshalParams(v.call.Input, ¶ms); err == nil {
347 args = newParamBuilder().
348 addMain(params.URL).
349 addKeyValue("format", params.Format).
350 addKeyValue("timeout", formatTimeout(params.Timeout)).
351 build()
352 }
353
354 return fr.renderWithParams(v, "Fetch", args, func() string {
355 file := fr.getFileExtension(params.Format)
356 return renderCodeContent(v, file, v.result.Content, 0)
357 })
358}
359
360// getFileExtension returns appropriate file extension for syntax highlighting
361func (fr fetchRenderer) getFileExtension(format string) string {
362 switch format {
363 case "text":
364 return "fetch.txt"
365 case "html":
366 return "fetch.html"
367 default:
368 return "fetch.md"
369 }
370}
371
372// formatTimeout converts timeout seconds to duration string
373func formatTimeout(timeout int) string {
374 if timeout == 0 {
375 return ""
376 }
377 return (time.Duration(timeout) * time.Second).String()
378}
379
380// -----------------------------------------------------------------------------
381// Download renderer
382// -----------------------------------------------------------------------------
383
384// downloadRenderer handles file downloading with URL and file path display
385type downloadRenderer struct {
386 baseRenderer
387}
388
389// Render displays the download URL and destination file path with timeout parameter
390func (dr downloadRenderer) Render(v *toolCallCmp) string {
391 var params tools.DownloadParams
392 var args []string
393 if err := dr.unmarshalParams(v.call.Input, ¶ms); err == nil {
394 args = newParamBuilder().
395 addMain(params.URL).
396 addKeyValue("file_path", fsext.PrettyPath(params.FilePath)).
397 addKeyValue("timeout", formatTimeout(params.Timeout)).
398 build()
399 }
400
401 return dr.renderWithParams(v, "Download", args, func() string {
402 return renderPlainContent(v, v.result.Content)
403 })
404}
405
406// -----------------------------------------------------------------------------
407// Glob renderer
408// -----------------------------------------------------------------------------
409
410// globRenderer handles file pattern matching with path filtering
411type globRenderer struct {
412 baseRenderer
413}
414
415// Render displays the glob pattern with optional path parameter
416func (gr globRenderer) Render(v *toolCallCmp) string {
417 var params tools.GlobParams
418 var args []string
419 if err := gr.unmarshalParams(v.call.Input, ¶ms); err == nil {
420 args = newParamBuilder().
421 addMain(params.Pattern).
422 addKeyValue("path", params.Path).
423 build()
424 }
425
426 return gr.renderWithParams(v, "Glob", args, func() string {
427 return renderPlainContent(v, v.result.Content)
428 })
429}
430
431// -----------------------------------------------------------------------------
432// Grep renderer
433// -----------------------------------------------------------------------------
434
435// grepRenderer handles content searching with pattern matching options
436type grepRenderer struct {
437 baseRenderer
438}
439
440// Render displays the search pattern with path, include, and literal text options
441func (gr grepRenderer) Render(v *toolCallCmp) string {
442 var params tools.GrepParams
443 var args []string
444 if err := gr.unmarshalParams(v.call.Input, ¶ms); err == nil {
445 args = newParamBuilder().
446 addMain(params.Pattern).
447 addKeyValue("path", params.Path).
448 addKeyValue("include", params.Include).
449 addFlag("literal", params.LiteralText).
450 build()
451 }
452
453 return gr.renderWithParams(v, "Grep", args, func() string {
454 return renderPlainContent(v, v.result.Content)
455 })
456}
457
458// -----------------------------------------------------------------------------
459// LS renderer
460// -----------------------------------------------------------------------------
461
462// lsRenderer handles directory listing with default path handling
463type lsRenderer struct {
464 baseRenderer
465}
466
467// Render displays the directory path, defaulting to current directory
468func (lr lsRenderer) Render(v *toolCallCmp) string {
469 var params tools.LSParams
470 var args []string
471 if err := lr.unmarshalParams(v.call.Input, ¶ms); err == nil {
472 path := params.Path
473 if path == "" {
474 path = "."
475 }
476 path = fsext.PrettyPath(path)
477
478 args = newParamBuilder().addMain(path).build()
479 }
480
481 return lr.renderWithParams(v, "List", args, func() string {
482 return renderPlainContent(v, v.result.Content)
483 })
484}
485
486// -----------------------------------------------------------------------------
487// Sourcegraph renderer
488// -----------------------------------------------------------------------------
489
490// sourcegraphRenderer handles code search with count and context options
491type sourcegraphRenderer struct {
492 baseRenderer
493}
494
495// Render displays the search query with optional count and context window parameters
496func (sr sourcegraphRenderer) Render(v *toolCallCmp) string {
497 var params tools.SourcegraphParams
498 var args []string
499 if err := sr.unmarshalParams(v.call.Input, ¶ms); err == nil {
500 args = newParamBuilder().
501 addMain(params.Query).
502 addKeyValue("count", formatNonZero(params.Count)).
503 addKeyValue("context", formatNonZero(params.ContextWindow)).
504 build()
505 }
506
507 return sr.renderWithParams(v, "Sourcegraph", args, func() string {
508 return renderPlainContent(v, v.result.Content)
509 })
510}
511
512// -----------------------------------------------------------------------------
513// Diagnostics renderer
514// -----------------------------------------------------------------------------
515
516// diagnosticsRenderer handles project-wide diagnostic information
517type diagnosticsRenderer struct {
518 baseRenderer
519}
520
521// Render displays project diagnostics with plain content formatting
522func (dr diagnosticsRenderer) Render(v *toolCallCmp) string {
523 args := newParamBuilder().addMain("project").build()
524
525 return dr.renderWithParams(v, "Diagnostics", args, func() string {
526 return renderPlainContent(v, v.result.Content)
527 })
528}
529
530// -----------------------------------------------------------------------------
531// Task renderer
532// -----------------------------------------------------------------------------
533
534// agentRenderer handles project-wide diagnostic information
535type agentRenderer struct {
536 baseRenderer
537}
538
539func RoundedEnumerator(children tree.Children, index int) string {
540 if children.Length()-1 == index {
541 return " ╰──"
542 }
543 return " ├──"
544}
545
546// Render displays agent task parameters and result content
547func (tr agentRenderer) Render(v *toolCallCmp) string {
548 t := styles.CurrentTheme()
549 var params agent.AgentParams
550 tr.unmarshalParams(v.call.Input, ¶ms)
551
552 prompt := params.Prompt
553 prompt = strings.ReplaceAll(prompt, "\n", " ")
554
555 header := tr.makeHeader(v, "Agent", v.textWidth())
556 if res, done := earlyState(header, v); v.cancelled && done {
557 return res
558 }
559 taskTag := t.S().Base.Padding(0, 1).MarginLeft(1).Background(t.BlueLight).Foreground(t.White).Render("Task")
560 remainingWidth := v.textWidth() - lipgloss.Width(header) - lipgloss.Width(taskTag) - 2 // -2 for padding
561 prompt = t.S().Muted.Width(remainingWidth).Render(prompt)
562 header = lipgloss.JoinVertical(
563 lipgloss.Left,
564 header,
565 "",
566 lipgloss.JoinHorizontal(
567 lipgloss.Left,
568 taskTag,
569 " ",
570 prompt,
571 ),
572 )
573 childTools := tree.Root(header)
574
575 for _, call := range v.nestedToolCalls {
576 childTools.Child(call.View())
577 }
578 parts := []string{
579 childTools.Enumerator(RoundedEnumerator).String(),
580 }
581
582 if v.result.ToolCallID == "" {
583 v.spinning = true
584 parts = append(parts, "", v.anim.View())
585 } else {
586 v.spinning = false
587 }
588
589 header = lipgloss.JoinVertical(
590 lipgloss.Left,
591 parts...,
592 )
593
594 if v.result.ToolCallID == "" {
595 return header
596 }
597
598 body := renderPlainContent(v, v.result.Content)
599 return joinHeaderBody(header, body)
600}
601
602// renderParamList renders params, params[0] (params[1]=params[2] ....)
603func renderParamList(nested bool, paramsWidth int, params ...string) string {
604 t := styles.CurrentTheme()
605 if len(params) == 0 {
606 return ""
607 }
608 mainParam := params[0]
609 if paramsWidth >= 0 && lipgloss.Width(mainParam) > paramsWidth {
610 mainParam = ansi.Truncate(mainParam, paramsWidth, "…")
611 }
612
613 if len(params) == 1 {
614 if nested {
615 return t.S().Muted.Render(mainParam)
616 }
617 return t.S().Subtle.Render(mainParam)
618 }
619 otherParams := params[1:]
620 // create pairs of key/value
621 // if odd number of params, the last one is a key without value
622 if len(otherParams)%2 != 0 {
623 otherParams = append(otherParams, "")
624 }
625 parts := make([]string, 0, len(otherParams)/2)
626 for i := 0; i < len(otherParams); i += 2 {
627 key := otherParams[i]
628 value := otherParams[i+1]
629 if value == "" {
630 continue
631 }
632 parts = append(parts, fmt.Sprintf("%s=%s", key, value))
633 }
634
635 partsRendered := strings.Join(parts, ", ")
636 remainingWidth := paramsWidth - lipgloss.Width(partsRendered) - 3 // count for " ()"
637 if remainingWidth < 30 {
638 if nested {
639 return t.S().Muted.Render(mainParam)
640 }
641 // No space for the params, just show the main
642 return t.S().Subtle.Render(mainParam)
643 }
644
645 if len(parts) > 0 {
646 mainParam = fmt.Sprintf("%s (%s)", mainParam, strings.Join(parts, ", "))
647 }
648
649 if nested {
650 return t.S().Muted.Render(ansi.Truncate(mainParam, paramsWidth, "…"))
651 }
652 return t.S().Subtle.Render(ansi.Truncate(mainParam, paramsWidth, "…"))
653}
654
655// earlyState returns immediately‑rendered error/cancelled/ongoing states.
656func earlyState(header string, v *toolCallCmp) (string, bool) {
657 t := styles.CurrentTheme()
658 message := ""
659 switch {
660 case v.result.IsError:
661 message = v.renderToolError()
662 case v.cancelled:
663 message = t.S().Base.Foreground(t.FgSubtle).Render("Canceled.")
664 case v.result.ToolCallID == "":
665 message = t.S().Base.Foreground(t.FgSubtle).Render("Waiting for tool to start...")
666 default:
667 return "", false
668 }
669
670 message = t.S().Base.PaddingLeft(2).Render(message)
671 return lipgloss.JoinVertical(lipgloss.Left, header, "", message), true
672}
673
674func joinHeaderBody(header, body string) string {
675 t := styles.CurrentTheme()
676 if body == "" {
677 return header
678 }
679 body = t.S().Base.PaddingLeft(2).Render(body)
680 return lipgloss.JoinVertical(lipgloss.Left, header, "", body)
681}
682
683func renderPlainContent(v *toolCallCmp, content string) string {
684 t := styles.CurrentTheme()
685 content = strings.ReplaceAll(content, "\r\n", "\n") // Normalize line endings
686 content = strings.ReplaceAll(content, "\t", " ") // Replace tabs with spaces
687 content = strings.TrimSpace(content)
688 lines := strings.Split(content, "\n")
689
690 width := v.textWidth() - 2 // -2 for left padding
691 var out []string
692 for i, ln := range lines {
693 if i >= responseContextHeight {
694 break
695 }
696 ln = escapeContent(ln)
697 ln = " " + ln // left padding
698 if len(ln) > width {
699 ln = v.fit(ln, width)
700 }
701 out = append(out, t.S().Muted.
702 Width(width).
703 Background(t.BgBaseLighter).
704 Render(ln))
705 }
706
707 if len(lines) > responseContextHeight {
708 out = append(out, t.S().Muted.
709 Background(t.BgBaseLighter).
710 Width(width).
711 Render(fmt.Sprintf("… (%d lines)", len(lines)-responseContextHeight)))
712 }
713
714 return strings.Join(out, "\n")
715}
716
717func pad(v any, width int) string {
718 s := fmt.Sprintf("%v", v)
719 w := ansi.StringWidth(s)
720 if w >= width {
721 return s
722 }
723 return strings.Repeat(" ", width-w) + s
724}
725
726func renderCodeContent(v *toolCallCmp, path, content string, offset int) string {
727 t := styles.CurrentTheme()
728 content = strings.ReplaceAll(content, "\r\n", "\n") // Normalize line endings
729 content = strings.ReplaceAll(content, "\t", " ") // Replace tabs with spaces
730 truncated := truncateHeight(content, responseContextHeight)
731
732 lines := strings.Split(truncated, "\n")
733 for i, ln := range lines {
734 lines[i] = escapeContent(ln)
735 }
736
737 highlighted, _ := highlight.SyntaxHighlight(strings.Join(lines, "\n"), path, t.BgBase)
738 lines = strings.Split(highlighted, "\n")
739
740 if len(strings.Split(content, "\n")) > responseContextHeight {
741 lines = append(lines, t.S().Muted.
742 Background(t.BgBase).
743 Render(fmt.Sprintf(" …(%d lines)", len(strings.Split(content, "\n"))-responseContextHeight)))
744 }
745
746 maxLineNumber := len(lines) + offset
747 padding := lipgloss.Width(fmt.Sprintf("%d", maxLineNumber))
748 for i, ln := range lines {
749 num := t.S().Base.
750 Foreground(t.FgMuted).
751 Background(t.BgBase).
752 PaddingRight(1).
753 PaddingLeft(1).
754 Render(pad(i+1+offset, padding))
755 w := v.textWidth() - 10 - lipgloss.Width(num) // -4 for left padding
756 lines[i] = lipgloss.JoinHorizontal(lipgloss.Left,
757 num,
758 t.S().Base.
759 PaddingLeft(1).
760 Render(v.fit(ln, w-1)))
761 }
762
763 return lipgloss.JoinVertical(lipgloss.Left, lines...)
764}
765
766func (v *toolCallCmp) renderToolError() string {
767 t := styles.CurrentTheme()
768 err := strings.ReplaceAll(v.result.Content, "\n", " ")
769 errTag := t.S().Base.Padding(0, 1).Background(t.Red).Foreground(t.White).Render("ERROR")
770 err = fmt.Sprintf("%s %s", errTag, t.S().Base.Foreground(t.FgHalfMuted).Render(v.fit(err, v.textWidth()-2-lipgloss.Width(errTag))))
771 return err
772}
773
774func truncateHeight(s string, h int) string {
775 lines := strings.Split(s, "\n")
776 if len(lines) > h {
777 return strings.Join(lines[:h], "\n")
778 }
779 return s
780}
781
782func prettifyToolName(name string) string {
783 switch name {
784 case agent.AgentToolName:
785 return "Agent"
786 case tools.BashToolName:
787 return "Bash"
788 case tools.DownloadToolName:
789 return "Download"
790 case tools.EditToolName:
791 return "Edit"
792 case tools.FetchToolName:
793 return "Fetch"
794 case tools.GlobToolName:
795 return "Glob"
796 case tools.GrepToolName:
797 return "Grep"
798 case tools.LSToolName:
799 return "List"
800 case tools.SourcegraphToolName:
801 return "Sourcegraph"
802 case tools.ViewToolName:
803 return "View"
804 case tools.WriteToolName:
805 return "Write"
806 default:
807 return name
808 }
809}
810
811// escapeContent replaces control characters with their Unicode Control Picture
812// representations to ensure they are displayed correctly in the UI.
813func escapeContent(content string) string {
814 var sb strings.Builder
815 for _, r := range content {
816 switch {
817 case r >= 0 && r <= 0x1f: // Control characters 0x00-0x1F
818 sb.WriteRune('\u2400' + r)
819 case r == ansi.DEL:
820 sb.WriteRune('\u2421')
821 default:
822 sb.WriteRune(r)
823 }
824 }
825 return sb.String()
826}