| 1 | package main |
| 2 | |
| 3 | import ( |
| 4 | "bufio" |
| 5 | "context" |
| 6 | "fmt" |
| 7 | "io" |
| 8 | "os" |
| 9 | "path/filepath" |
| 10 | "reasonix/internal/sessionexport" |
| 11 | "strings" |
| 12 | |
| 13 | "reasonix/internal/fileutil" |
| 14 | ) |
| 15 | |
| 16 | // SaveSessionMarkdownForTab writes the complete host-side transcript without |
| 17 | // transferring or joining it in the renderer. The destination is published |
| 18 | // only after the buffered stream has been flushed and synced. |
| 19 | func (a *App) SaveSessionMarkdownForTab(tabID, path, title string) error { |
| 20 | if strings.TrimSpace(path) == "" { |
| 21 | return nil |
| 22 | } |
| 23 | query, ref, err := a.canonicalSessionQuery(tabID) |
| 24 | if err != nil { |
| 25 | return err |
| 26 | } |
| 27 | snapshot, err := query.CaptureExportSnapshot(context.Background(), ref) |
| 28 | if err != nil { |
| 29 | return err |
| 30 | } |
| 31 | snapshot.Title = title |
| 32 | dir, err := os.MkdirTemp("", "reasonix-markdown-") |
| 33 | if err != nil { |
| 34 | return err |
| 35 | } |
| 36 | defer os.RemoveAll(dir) |
| 37 | if _, err = sessionexport.Build(context.Background(), query, snapshot, dir, nil); err != nil { |
| 38 | return err |
| 39 | } |
| 40 | return writeStreamingExport(path, func(dst io.Writer) error { |
| 41 | file, err := os.Open(filepath.Join(dir, "markdown")) |
| 42 | if err != nil { |
| 43 | return err |
| 44 | } |
| 45 | defer file.Close() |
| 46 | _, err = io.Copy(dst, file) |
| 47 | return err |
| 48 | }) |
| 49 | } |
| 50 | |
| 51 | func writeSessionMarkdown(dst io.Writer, title string, messages []HistoryMessage) error { |
| 52 | writer := bufio.NewWriterSize(dst, 64<<10) |
| 53 | heading := strings.TrimSpace(strings.ReplaceAll(strings.ReplaceAll(title, "\r", " "), "\n", " ")) |
| 54 | if heading == "" { |
| 55 | heading = "Reasonix session" |
| 56 | } |
| 57 | if _, err := fmt.Fprintf(writer, "# %s\n\n", heading); err != nil { |
| 58 | return err |
| 59 | } |
| 60 | for _, message := range messages { |
| 61 | if err := writeSessionMarkdownMessage(writer, message); err != nil { |
| 62 | return err |
| 63 | } |
| 64 | } |
| 65 | return writer.Flush() |
| 66 | } |
| 67 | |
| 68 | func writeSessionMarkdownMessage(dst io.Writer, message HistoryMessage) error { |
| 69 | writeSection := func(heading, body string) error { |
| 70 | body = strings.TrimSpace(body) |
| 71 | if body == "" { |
| 72 | return nil |
| 73 | } |
| 74 | _, err := fmt.Fprintf(dst, "%s\n\n%s\n\n", heading, body) |
| 75 | return err |
| 76 | } |
| 77 | switch message.Role { |
| 78 | case "user": |
| 79 | return writeSection("## User", message.Content) |
| 80 | case "assistant": |
| 81 | if err := writeSection("### Reasoning", message.Reasoning); err != nil { |
| 82 | return err |
| 83 | } |
| 84 | if err := writeSection("## Assistant", message.Content); err != nil { |
| 85 | return err |
| 86 | } |
| 87 | for _, call := range message.ToolCalls { |
| 88 | if _, err := fmt.Fprintf(dst, "### Tool: %s\n\n", call.Name); err != nil { |
| 89 | return err |
| 90 | } |
| 91 | if err := writeMarkdownFence(dst, "Args", call.Arguments); err != nil { |
| 92 | return err |
| 93 | } |
| 94 | } |
| 95 | case "tool": |
| 96 | if err := writeMarkdownFence(dst, "Output", message.Content); err != nil { |
| 97 | return err |
| 98 | } |
| 99 | return writeMarkdownFence(dst, "Error", message.ToolResultError) |
| 100 | case "notice": |
| 101 | return writeSection("### Notice", strings.TrimSpace(message.Content+"\n"+message.Detail)) |
| 102 | case "phase": |
| 103 | return writeSection("### Phase", message.Content) |
| 104 | } |
| 105 | return nil |
| 106 | } |
| 107 | |
| 108 | func writeMarkdownFence(dst io.Writer, label, body string) error { |
| 109 | if body == "" { |
| 110 | return nil |
| 111 | } |
| 112 | fence := sessionexport.Fence(body) |
| 113 | _, err := fmt.Fprintf(dst, "%s\n%s\n%s\n%s\n\n", label, fence, body, fence) |
| 114 | return err |
| 115 | } |
| 116 | |
| 117 | func writeStreamingExport(path string, write func(io.Writer) error) error { |
| 118 | tmp, err := os.CreateTemp(filepath.Dir(path), ".reasonix-session-export-*") |
| 119 | if err != nil { |
| 120 | return exportOperationError("save session export", path, err) |
| 121 | } |
| 122 | tmpPath := tmp.Name() |
| 123 | keep := false |
| 124 | defer func() { |
| 125 | _ = tmp.Close() |
| 126 | if !keep { |
| 127 | _ = os.Remove(tmpPath) |
| 128 | } |
| 129 | }() |
| 130 | if err := tmp.Chmod(0o644); err != nil { |
| 131 | return exportOperationError("save session export", path, err) |
| 132 | } |
| 133 | if err := write(tmp); err != nil { |
| 134 | return exportOperationError("save session export", path, err) |
| 135 | } |
| 136 | if err := tmp.Sync(); err != nil { |
| 137 | return exportOperationError("save session export", path, err) |
| 138 | } |
| 139 | if err := tmp.Close(); err != nil { |
| 140 | return exportOperationError("save session export", path, err) |
| 141 | } |
| 142 | if err := fileutil.ReplaceFile(tmpPath, path); err != nil { |
| 143 | return exportOperationError("save session export", path, err) |
| 144 | } |
| 145 | keep = true |
| 146 | return nil |
| 147 | } |
| 148 |