Spaces:
Sleeping
Sleeping
File size: 7,449 Bytes
2415446 | 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 | """Transcript event application and open-block tracking."""
from typing import Any
from .context import RenderCtx
from .renderer import render_segments
from .segments import (
ErrorSegment,
Segment,
SubagentSegment,
TextSegment,
ThinkingSegment,
ToolCallSegment,
ToolResultSegment,
)
from .subagents import SubagentState, task_heading_from_input
_SUBAGENT_SUPPRESSED_EVENTS = frozenset(
{
"thinking_start",
"thinking_delta",
"thinking_chunk",
"text_start",
"text_delta",
"text_chunk",
}
)
class TranscriptBuffer:
"""Maintains an ordered, truncatable transcript of parsed CLI events."""
def __init__(
self,
*,
show_tool_results: bool = True,
debug_subagent_stack: bool = False,
) -> None:
self._segments: list[Segment] = []
self._open_thinking_by_index: dict[int, ThinkingSegment] = {}
self._open_text_by_index: dict[int, TextSegment] = {}
self._open_tools_by_index: dict[int, ToolCallSegment] = {}
self._tool_name_by_id: dict[str, str] = {}
self._show_tool_results = bool(show_tool_results)
self._subagents = SubagentState(debug=debug_subagent_stack)
def apply(self, event: dict[str, Any]) -> None:
"""Apply a parsed CLI transcript event."""
event_type = event.get("type")
if self._subagents.in_subagent() and event_type in _SUBAGENT_SUPPRESSED_EVENTS:
return
if event_type == "thinking_start":
self._start_thinking(_event_index(event))
return
if event_type in ("thinking_delta", "thinking_chunk"):
self._append_thinking(_event_index(event), str(event.get("text", "")))
return
if event_type == "thinking_stop":
self._open_thinking_by_index.pop(_event_index(event), None)
return
if event_type == "text_start":
self._start_text(_event_index(event))
return
if event_type in ("text_delta", "text_chunk"):
self._append_text(_event_index(event), str(event.get("text", "")))
return
if event_type == "text_stop":
self._open_text_by_index.pop(_event_index(event), None)
return
if event_type == "tool_use_start":
self._start_tool_use(event)
return
if event_type == "tool_use_delta":
return
if event_type == "tool_use_stop":
segment = self._open_tools_by_index.pop(_event_index(event), None)
if segment is not None:
segment.closed = True
return
if event_type == "block_stop":
self._close_block(_event_index(event))
return
if event_type == "tool_use":
self._append_complete_tool_use(event)
return
if event_type == "tool_result":
self._append_tool_result(event)
return
if event_type == "error":
self._segments.append(ErrorSegment(str(event.get("message", ""))))
def render(self, ctx: RenderCtx, *, limit_chars: int, status: str | None) -> str:
return render_segments(
self._segments,
ctx,
limit_chars=limit_chars,
status=status,
)
def _start_thinking(self, index: int) -> None:
if index >= 0:
self._close_block(index)
segment = ThinkingSegment()
self._segments.append(segment)
if index >= 0:
self._open_thinking_by_index[index] = segment
def _append_thinking(self, index: int, text: str) -> None:
segment = self._open_thinking_by_index.get(index)
if segment is None:
segment = ThinkingSegment()
self._segments.append(segment)
if index >= 0:
self._open_thinking_by_index[index] = segment
segment.append(text)
def _start_text(self, index: int) -> None:
if index >= 0:
self._close_block(index)
segment = TextSegment()
self._segments.append(segment)
if index >= 0:
self._open_text_by_index[index] = segment
def _append_text(self, index: int, text: str) -> None:
segment = self._open_text_by_index.get(index)
if segment is None:
segment = TextSegment()
self._segments.append(segment)
if index >= 0:
self._open_text_by_index[index] = segment
segment.append(text)
def _start_tool_use(self, event: dict[str, Any]) -> None:
index = _event_index(event)
if index >= 0:
self._close_block(index)
tool_id = _event_tool_id(event, "id")
name = str(event.get("name", "") or "tool")
if tool_id:
self._tool_name_by_id[tool_id] = name
if name == "Task":
segment = SubagentSegment(task_heading_from_input(event.get("input")))
self._segments.append(segment)
self._subagents.push(tool_id, segment)
return
segment = self._append_tool_call(tool_id, name)
if index >= 0:
self._open_tools_by_index[index] = segment
def _append_complete_tool_use(self, event: dict[str, Any]) -> None:
tool_id = _event_tool_id(event, "id")
name = str(event.get("name", "") or "tool")
if tool_id:
self._tool_name_by_id[tool_id] = name
if name == "Task":
segment = SubagentSegment(task_heading_from_input(event.get("input")))
self._segments.append(segment)
self._subagents.push(tool_id, segment)
return
segment = self._append_tool_call(tool_id, name)
segment.closed = True
def _append_tool_call(self, tool_id: str, name: str) -> ToolCallSegment:
if self._subagents.in_subagent():
parent = self._subagents.current_segment()
if parent is not None:
return parent.set_current_tool_call(tool_id, name)
segment = ToolCallSegment(tool_id, name)
self._segments.append(segment)
return segment
def _append_tool_result(self, event: dict[str, Any]) -> None:
tool_id = _event_tool_id(event, "tool_use_id")
name = self._tool_name_by_id.get(tool_id)
if self._subagents.in_subagent():
self._subagents.close_for_tool_result(tool_id, tool_name=name)
if not self._show_tool_results:
return
self._segments.append(
ToolResultSegment(
tool_id,
event.get("content"),
name=name,
is_error=bool(event.get("is_error", False)),
)
)
def _close_block(self, index: int) -> None:
if index in self._open_tools_by_index:
segment = self._open_tools_by_index.pop(index, None)
if segment is not None:
segment.closed = True
return
if index in self._open_thinking_by_index:
self._open_thinking_by_index.pop(index, None)
return
if index in self._open_text_by_index:
self._open_text_by_index.pop(index, None)
def _event_index(event: dict[str, Any]) -> int:
return int(event.get("index", -1))
def _event_tool_id(event: dict[str, Any], key: str) -> str:
return str(event.get(key, "") or "").strip()
|