Files
code_of_conquest_dnd/api/app/npc.py

60 lines
1.8 KiB
Python

"""The NPC role service (charter §5/§6). Loads the NPC's server-only persona +
knowledge, renders the digest, routes the model, calls Ollama with one retry,
logs the call (§10), and returns raw prose — move/fact tags left intact for the
client to extract, validate, and apply (§2/§6). Mirrors narrate.py.
"""
import random
from time import perf_counter
from . import call_log, ollama_client, prompts, routing
from .content import load_npc
class UnknownNpc(Exception):
"""No authored content resolves for the requested npc_id."""
def run(
canon_log: dict,
npc_id: str,
disposition: int,
available_moves: list[str],
utterance: str,
) -> str:
npc = load_npc(npc_id)
if npc is None:
raise UnknownNpc(npc_id)
cfg = routing.for_role("npc")
options = {**cfg.options, "seed": random.randint(0, 2**31 - 1)}
messages = [
{"role": "system", "content": prompts.system_prompt("npc")},
{"role": "user", "content": prompts.render_npc_digest(
canon_log,
persona=npc.get("persona", ""),
knowledge=npc.get("knowledge", []),
disposition=disposition,
available_moves=available_moves,
utterance=utterance,
)},
]
start = perf_counter()
try:
text = ollama_client.chat(cfg.model, messages, options, think=cfg.think)
except ollama_client.ModelError as exc:
call_log.record(
role="npc", model=cfg.model, options=options, messages=messages,
canon_log=canon_log, ok=False,
latency_ms=int((perf_counter() - start) * 1000), error=str(exc),
)
raise
call_log.record(
role="npc", model=cfg.model, options=options, messages=messages,
canon_log=canon_log, ok=True,
latency_ms=int((perf_counter() - start) * 1000), response=text,
)
return text