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from __future__ import annotations

from dataclasses import dataclass

from .commands import PORTED_COMMANDS

from .context import PortContext, build_port_context, render_context

from .history import HistoryLog

from .models import PermissionDenial, PortingModule

from .query_engine import QueryEngineConfig, QueryEnginePort, TurnResult

from .setup import SetupReport, WorkspaceSetup, run_setup

from .system_init import build_system_init_message

from .tools import PORTED_TOOLS

from .execution_registry import build_execution_registry

@dataclass(frozen=True)

class RoutedMatch:

kind: str

name: str

source_hint: str

score: int

@dataclass

class RuntimeSession:

prompt: str

context: PortContext

setup: WorkspaceSetup

setup_report: SetupReport

system_init_message: str

history: HistoryLog

routed_matches: list[RoutedMatch]

turn_result: TurnResult

command_execution_messages: tuple[str, ...]

tool_execution_messages: tuple[str, ...]

stream_events: tuple[dict[str, object], ...]

persisted_session_path: str

def as_markdown(self) -> str:

lines = [

'# Runtime Session',

'',

f'Prompt: {self.prompt}',

'',

'## Context',

render_context(self.context),

'',

'## Setup',

f'- Python: {self.setup.python_version} ({self.setup.implementation})',

f'- Platform: {self.setup.platform_name}',

f'- Test command: {self.setup.test_command}',

'',

'## Startup Steps',

*(f'- {step}' for step in self.setup.startup_steps()),

'',

'## System Init',

self.system_init_message,

'',

'## Routed Matches',

]

if self.routed_matches:

lines.extend(

f'- [{match.kind}] {match.name} ({match.score}) — {match.source_hint}'

for match in self.routed_matches

)

else:

lines.append('- none')

lines.extend([

'',

'## Command Execution',

*(self.command_execution_messages or ('none',)),

'',

'## Tool Execution',

*(self.tool_execution_messages or ('none',)),

'',

'## Stream Events',

*(f"- {event['type']}: {event}" for event in self.stream_events),

'',

'## Turn Result',

self.turn_result.output,

'',

f'Persisted session path: {self.persisted_session_path}',

'',

self.history.as_markdown(),

])

return '\n'.join(lines)

class PortRuntime:

def route_prompt(self, prompt: str, limit: int = 5) -> list[RoutedMatch]:

tokens = {token.lower() for token in prompt.replace('/', ' ').replace('-', ' ').split() if token}

by_kind = {

'command': self._collect_matches(tokens, PORTED_COMMANDS, 'command'),

'tool': self._collect_matches(tokens, PORTED_TOOLS, 'tool'),

}

selected: list[RoutedMatch] = []

for kind in ('command', 'tool'):

if by_kind[kind]:

selected.append(by_kind[kind].pop(0))

leftovers = sorted(

[match for matches in by_kind.values() for match in matches],

key=lambda item: (-item.score, item.kind, item.name),

)

selected.extend(leftovers[: max(0, limit - len(selected))])

return selected[:limit]

def bootstrap_session(self, prompt: str, limit: int = 5) -> RuntimeSession:

context = build_port_context()

setup_report = run_setup(trusted=True)

setup = setup_report.setup

history = HistoryLog()

engine = QueryEnginePort.from_workspace()

history.add('context', f'python_files={context.python_file_count}, archive_available={context.archive_available}')

history.add('registry', f'commands={len(PORTED_COMMANDS)}, tools={len(PORTED_TOOLS)}')

matches = self.route_prompt(prompt, limit=limit)

registry = build_execution_registry()

command_execs = tuple(registry.command(match.name).execute(prompt) for match in matches if match.kind == 'command' and registry.command(match.name))

tool_execs = tuple(registry.tool(match.name).execute(prompt) for match in matches if match.kind == 'tool' and registry.tool(match.name))

denials = tuple(self._infer_permission_denials(matches))

stream_events = tuple(engine.stream_submit_message(

prompt,

matched_commands=tuple(match.name for match in matches if match.kind == 'command'),

matched_tools=tuple(match.name for match in matches if match.kind == 'tool'),

denied_tools=denials,

))

turn_result = engine.submit_message(

prompt,

matched_commands=tuple(match.name for match in matches if match.kind == 'command'),

matched_tools=tuple(match.name for match in matches if match.kind == 'tool'),

denied_tools=denials,

)

persisted_session_path = engine.persist_session()

history.add('routing', f'matches={len(matches)} for prompt={prompt!r}')

history.add('execution', f'command_execs={len(command_execs)} tool_execs={len(tool_execs)}')

history.add('turn', f'commands={len(turn_result.matched_commands)} tools={len(turn_result.matched_tools)} denials={len(turn_result.permission_denials)} stop={turn_result.stop_reason}')

history.add('session_store', persisted_session_path)

return RuntimeSession(

prompt=prompt,

context=context,

setup=setup,

setup_report=setup_report,

system_init_message=build_system_init_message(trusted=True),

history=history,

routed_matches=matches,

turn_result=turn_result,

command_execution_messages=command_execs,

tool_execution_messages=tool_execs,

stream_events=stream_events,

persisted_session_path=persisted_session_path,

)

def run_turn_loop(self, prompt: str, limit: int = 5, max_turns: int = 3, structured_output: bool = False) -> list[TurnResult]:

engine = QueryEnginePort.from_workspace()

engine.config = QueryEngineConfig(max_turns=max_turns, structured_output=structured_output)

matches = self.route_prompt(prompt, limit=limit)

command_names = tuple(match.name for match in matches if match.kind == 'command')

tool_names = tuple(match.name for match in matches if match.kind == 'tool')

results: list[TurnResult] = []

for turn in range(max_turns):

turn_prompt = prompt if turn == 0 else f'{prompt} [turn {turn + 1}]'

result = engine.submit_message(turn_prompt, command_names, tool_names, ())

results.append(result)

if result.stop_reason != 'completed':

break

return results

def _infer_permission_denials(self, matches: list[RoutedMatch]) -> list[PermissionDenial]:

denials: list[PermissionDenial] = []

for match in matches:

if match.kind == 'tool' and 'bash' in match.name.lower():

denials.append(PermissionDenial(tool_name=match.name, reason='destructive shell execution remains gated in the Python port'))

return denials

def _collect_matches(self, tokens: set[str], modules: tuple[PortingModule, ...], kind: str) -> list[RoutedMatch]:

matches: list[RoutedMatch] = []

for module in modules:

score = self._score(tokens, module)

if score > 0:

matches.append(RoutedMatch(kind=kind, name=module.name, source_hint=module.source_hint, score=score))

matches.sort(key=lambda item: (-item.score, item.name))

return matches

@staticmethod

def _score(tokens: set[str], module: PortingModule) -> int:

haystacks = [module.name.lower(), module.source_hint.lower(), module.responsibility.lower()]

score = 0

for token in tokens:

if any(token in haystack for haystack in haystacks):

score += 1

return score