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Claude
fea055fd52
GoTurnHost est le TurnHost de la façade : envoi par EngineHttp (clé de l'endpoint, pannes classées comme friendlyLLMError), outils par l'API du Go avec leurs suites (capture, aperçu, image relayée), résultats complets confiés à l'écrivain des discussions (id « <discussion>.<aléa> »), compaction par Compactor avec un résumeur qui interroge le moteur (EngineSummarizer) et l'archive recall du Go (StoreRecall), images jointes lues sur disque et ouvertes par le Go, en cache borné à 64 Mio. RecallArchive devient asynchrone ; la boucle consulte la mémoire des refus de compaction avant d'annoncer une compaction en cours de tour. Écarts : pas de résumé en continuation (état du slot tenu par le Go), ni conseil de cache, ni garde d'écriture du mode Code. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_016tcGfJWefW5kUGoC2wL8cv
581 lines
19 KiB
Rust
581 lines
19 KiB
Rust
//! Le tour branché sur le vrai monde : le [`TurnHost`] de la façade.
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//!
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//! - envoi au moteur par [`EngineHttp`] (clé de CET endpoint), pannes
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//! classées et formulées comme `friendlyLLMError` ;
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//! - outils exécutés par le Go (`/internal/v1/tool/exec`), avec ce qu'il tire
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//! du résultat (capture de la bulle, aperçu du navigateur, image relayée) ;
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//! - résultats complets (« voir plus ») confiés à l'écrivain des discussions ;
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//! - compaction par [`Compactor`] : résumé demandé au moteur
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//! ([`EngineSummarizer`]), blocs archivés pour recall par le Go
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//! ([`StoreRecall`]) ;
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//! - images jointes (`loki-img:…`) lues sur disque et ouvertes par le Go
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//! (déchiffrées), gardées en cache comme `chatImageDataURL`.
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//!
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//! Écarts assumés : le résumé en continuation (COMPACT_CONTINUATION) demande
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//! l'état du slot du moteur, tenu par le Go — `slot_holds` rend faux et la
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//! compaction résume la transcription. Ni conseil de cache ni garde
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//! d'écriture du mode Code (état du Go) : `cache_hint` et `preflight` absents.
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use std::collections::{HashMap, VecDeque};
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use std::path::PathBuf;
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use std::sync::{Arc, Mutex};
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use futures_util::StreamExt;
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use serde_json::{Map, Value, json};
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use super::compact::{
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CompactCaps, CompactConfig, CompactMemory, CompactOpts, Compactor, ContinuationRequest,
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RecallArchive, Summarizer, SummaryChoice, SummaryError, TranscriptRequest, compact_opts_mid,
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parse_summary_response,
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};
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use super::engine::{EngineHttp, classify, friendly_error};
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use super::persist::{Persister, StoreSink, ToolResJob};
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use super::stream::{CacheHintFn, PreflightFn, RetryPatterns};
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use super::turn::{CompactPhase, Reply, SendError, ToolOutcome, TurnHost};
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use super::types::{AskEvent, DiffLine, Message, Tool};
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use super::wire::{
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ChatEndpoint, ChatPayloadOpts, EchoRefusals, EffortFallbacks, IMG_REF_SCHEME,
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build_chat_payload, content_parts, part_image_url, wire_messages,
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};
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use crate::store::Store;
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/// Taille au-delà de laquelle le cache d'images oublie les plus anciennes
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/// (`imgCacheMax`).
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pub const IMG_CACHE_MAX: usize = 64 << 20;
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/// Corps d'un refus de résumé gardé au plus (`postSummary`).
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const SUMMARY_ERR_MAX: usize = 500;
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/// Base64 standard (avec remplissage), comme `base64.StdEncoding`.
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pub fn b64(data: &[u8]) -> String {
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const T: &[u8; 64] = b"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";
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let mut out = String::with_capacity(data.len().div_ceil(3) * 4);
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for c in data.chunks(3) {
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let n = (c[0] as u32) << 16
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| (*c.get(1).unwrap_or(&0) as u32) << 8
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| *c.get(2).unwrap_or(&0) as u32;
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out.push(T[(n >> 18) as usize & 63] as char);
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out.push(T[(n >> 12) as usize & 63] as char);
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out.push(if c.len() > 1 {
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T[(n >> 6) as usize & 63] as char
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} else {
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'='
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});
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out.push(if c.len() > 2 {
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T[n as usize & 63] as char
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} else {
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'='
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});
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}
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out
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}
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/// Type MIME d'une image rangée, d'après son extension (`imgExtByMime`).
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fn image_mime(name: &str) -> &'static str {
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for (ext, mime) in [
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(".png", "image/png"),
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(".gif", "image/gif"),
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(".webp", "image/webp"),
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] {
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if name.ends_with(ext) {
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return mime;
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}
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}
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"image/jpeg"
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}
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/// Nom d'une image rangée, si la référence est sûre (ni chemin ni `..`).
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fn image_name(r: &str) -> Option<&str> {
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let name = r.strip_prefix(IMG_REF_SCHEME)?;
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(!name.is_empty() && !name.contains(['/', '\\']) && !name.contains("..")).then_some(name)
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}
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#[derive(Default)]
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struct ImgCacheInner {
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map: HashMap<String, String>,
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order: VecDeque<String>,
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bytes: usize,
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}
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/// Images jointes en data-URL, bornées à [`IMG_CACHE_MAX`] (la plus ancienne
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/// part en premier, jamais la dernière).
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pub struct ImageCache {
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dir: PathBuf,
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inner: Mutex<ImgCacheInner>,
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}
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impl ImageCache {
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/// `dir` : `LOKI_HOME/chatimg`.
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pub fn new(dir: PathBuf) -> Self {
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ImageCache {
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dir,
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inner: Mutex::new(ImgCacheInner::default()),
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}
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}
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pub fn get(&self, r: &str) -> Option<String> {
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let name = image_name(r)?;
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self.inner.lock().ok()?.map.get(name).cloned()
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}
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fn put(&self, name: &str, url: String) {
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let Ok(mut g) = self.inner.lock() else { return };
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if g.map.contains_key(name) {
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return;
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}
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g.bytes += url.len();
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g.map.insert(name.to_string(), url);
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g.order.push_back(name.to_string());
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while g.bytes > IMG_CACHE_MAX && g.order.len() > 1 {
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if let Some(old) = g.order.pop_front()
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&& let Some(u) = g.map.remove(&old)
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{
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g.bytes -= u.len();
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}
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}
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}
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/// Lit et ouvre (par le Go) les images référencées pas encore en cache.
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/// Une image illisible reste absente : la requête dira « indisponible ».
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pub async fn prefetch(&self, store: &Store, msgs: &[Message]) {
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for m in msgs {
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for p in content_parts(m.content.as_ref()) {
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let Some(name) = image_name(part_image_url(p)) else {
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continue;
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};
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if self.inner.lock().is_ok_and(|g| g.map.contains_key(name)) {
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continue;
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}
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let Ok(raw) = tokio::fs::read(self.dir.join(name)).await else {
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continue;
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};
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let Ok(b) = store.open(raw).await else {
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continue;
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};
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self.put(
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name,
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format!("data:{};base64,{}", image_mime(name), b64(&b)),
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);
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}
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}
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}
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}
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/// Le moteur vu de la compaction (`postSummary`).
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pub struct EngineSummarizer {
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pub http: EngineHttp,
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pub ep: ChatEndpoint,
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pub cfg: HashMap<String, String>,
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pub patterns: Arc<RetryPatterns>,
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pub port: u16,
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}
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impl EngineSummarizer {
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async fn post(&self, payload: Value) -> Result<SummaryChoice, SummaryError> {
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let body = serde_json::to_vec(&payload).unwrap_or_default();
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let resp = self
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.http
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.post(&self.ep.url, &self.ep.key, body)
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.await
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.map_err(|e| {
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SummaryError::Other(friendly_error(classify(&e), &e.to_string(), self.port, ""))
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})?;
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let status = resp.status().as_u16();
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let raw = resp
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.bytes()
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.await
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.map_err(|e| SummaryError::Other(e.to_string()))?;
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if status != 200 {
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let b = &raw[..raw.len().min(SUMMARY_ERR_MAX)];
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return Err(SummaryError::Http {
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who: if self.ep.external {
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"API externe"
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} else {
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"llama-server"
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}
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.into(),
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status,
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body: String::from_utf8_lossy(b).trim().to_string(),
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});
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}
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parse_summary_response(&raw)
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}
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}
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impl Summarizer for EngineSummarizer {
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async fn summarize_transcript(
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&self,
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req: TranscriptRequest,
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) -> Result<SummaryChoice, SummaryError> {
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let mut p = json!({
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"model": self.ep.model,
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"messages": [
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{"role": "system", "content": req.system},
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{"role": "user", "content": req.transcript},
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],
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"stream": false,
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"temperature": 0.2,
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"max_tokens": req.max_tokens,
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"chat_template_kwargs": {"enable_thinking": false},
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});
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// Propre à llama.cpp : une API distante stricte refuse l'argument.
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if self.ep.external
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&& let Some(o) = p.as_object_mut()
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{
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o.remove("chat_template_kwargs");
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}
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self.post(p).await
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}
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async fn summarize_continuation(
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&self,
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req: ContinuationRequest,
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) -> Result<SummaryChoice, SummaryError> {
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let mut p = build_chat_payload(
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&self.ep,
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&req.messages,
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0.2,
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&ChatPayloadOpts {
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tools: &req.tools,
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disable_tools: false,
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tool_choice_none: true,
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effort: &req.effort,
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kwargs: Some(&req.kwargs),
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no_sampling: true,
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},
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&self.cfg,
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&|_| None,
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);
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if let Some(o) = p.as_object_mut() {
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o.insert("stream".into(), Value::Bool(false));
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o.remove("stream_options");
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o.insert("max_tokens".into(), json!(req.max_tokens));
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}
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self.post(p).await
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}
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fn slot_holds(&self, _conv: &str) -> bool {
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false
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}
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fn textual_tool_call(&self, content: &str) -> bool {
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self.patterns.textual_tool_call(content)
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}
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}
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/// Archive recall tenue par le Go.
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pub struct StoreRecall(pub Store);
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impl RecallArchive for StoreRecall {
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async fn archive(&self, label: &str, role: &str, content: &str) -> Result<String, String> {
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self.0.recall_archive(label, role, content).await
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}
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}
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/// Ce qui survit d'un tour à l'autre (un exemplaire par processus).
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pub struct ChatShared {
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pub http: EngineHttp,
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pub store: Store,
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pub persister: Persister<StoreSink>,
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pub effort: EffortFallbacks,
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pub echo_refusals: EchoRefusals,
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pub compact_memory: CompactMemory,
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pub images: ImageCache,
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pub patterns: Arc<RetryPatterns>,
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}
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/// Ce que la compaction sait du tour.
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pub struct TurnCompact {
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pub cfg: CompactConfig,
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pub caps: CompactCaps,
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/// Mode Code : critères rendus de la discussion.
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pub criteria: String,
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/// Discussion du tour (vide : tâche ou sous-agent).
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pub main_conv: String,
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/// Forme de la requête du tour, pour les options de la compaction en
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/// cours de tour.
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pub tools: Vec<Tool>,
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pub effort: String,
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pub kwargs: Map<String, Value>,
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}
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/// Le [`TurnHost`] de la façade.
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pub struct GoTurnHost {
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pub shared: Arc<ChatShared>,
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/// Discussion dont relèvent les résultats complets.
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pub conv_id: String,
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/// Capacités du tour, telles que l'API d'outils les attend (champs Go).
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pub caps: Value,
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pub cfg: HashMap<String, String>,
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pub port: u16,
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pub summarizer: EngineSummarizer,
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pub compact: TurnCompact,
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/// Messages mis en file par l'utilisateur pendant le tour.
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pub queued: Box<dyn Fn() -> Vec<Message> + Send + Sync>,
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}
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/// `toolResID` : « <discussion>.<24 hex> ».
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fn tool_res_id(conv: &str) -> String {
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let mut b = [0u8; 12];
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let _ = getrandom::fill(&mut b);
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let conv = match conv.trim() {
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"" => "nosession",
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c => c,
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};
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format!("{conv}.{}", hex::encode(b))
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}
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/// Réponse de `/internal/v1/tool/exec` → [`ToolOutcome`].
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pub fn tool_outcome(v: &Value, label: &str) -> ToolOutcome {
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let s = |k: &str| v.get(k).and_then(Value::as_str).unwrap_or("").to_string();
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let n = |k: &str| v.get(k).and_then(Value::as_i64).unwrap_or(0);
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let mut relay: Option<Message> = v
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.get("relay")
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.and_then(|r| serde_json::from_value(r.clone()).ok());
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if relay.is_none()
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&& let Some(img) = v.get("vision_img").filter(|i| i.is_object())
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{
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relay = Some(see_image_message(label, img.clone()));
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}
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ToolOutcome {
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result: s("result"),
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diff: v
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.get("diff")
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.and_then(|d| serde_json::from_value::<Vec<DiffLine>>(d.clone()).ok())
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.unwrap_or_default(),
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added: n("added"),
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removed: n("removed"),
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ask: v
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.get("ask")
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.and_then(|a| serde_json::from_value::<AskEvent>(a.clone()).ok()),
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image: s("image"),
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live_shot: s("shot"),
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relay,
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}
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}
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/// `seeImageMessage` : l'image relayée au modèle.
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pub fn see_image_message(label: &str, img: Value) -> Message {
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let text = if label.is_empty() {
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"Image :".to_string()
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} else {
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format!("Image demandée ({label}) :")
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};
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Message {
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role: "user".into(),
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content: Some(json!([{"type": "text", "text": text}, img])),
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..Default::default()
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}
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}
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impl TurnHost for GoTurnHost {
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async fn send(&self, ep: &ChatEndpoint, body: Vec<u8>) -> Result<Reply, SendError> {
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match self.shared.http.post(&ep.url, &ep.key, body).await {
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Ok(resp) => {
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let status = resp.status().as_u16();
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let body = resp.bytes_stream().map(|r| r.map_err(|e| e.to_string()));
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Ok(Reply {
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status,
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body: Box::pin(body),
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})
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}
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Err(e) => {
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let kind = classify(&e);
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Err(SendError {
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kind,
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message: friendly_error(kind, &e.to_string(), self.port, ""),
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})
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}
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}
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}
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async fn exec_tool(&self, name: &str, args: &Map<String, Value>, label: &str) -> ToolOutcome {
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match self
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.shared
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.store
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.tool_exec(name, &Value::Object(args.clone()), &self.caps)
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.await
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{
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Ok(v) => tool_outcome(&v, label),
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Err(e) => ToolOutcome {
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result: format!("[erreur] exécution de l'outil impossible : {e}"),
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..Default::default()
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},
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}
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}
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fn save_tool_result(&self, result: &str) -> String {
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let id = tool_res_id(&self.conv_id);
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self.shared.persister.enqueue_tool_res(ToolResJob {
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key: id.clone(),
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plain: Arc::from(result),
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});
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id
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}
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async fn compact(&self, phase: CompactPhase, msgs: &[Message]) -> Option<Vec<Message>> {
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let recall = StoreRecall(self.shared.store.clone());
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let c = Compactor {
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cfg: &self.compact.cfg,
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summarizer: &self.summarizer,
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recall: &recall,
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memory: &self.shared.compact_memory,
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criteria: &self.compact.criteria,
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};
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let (out, changed) = match phase {
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CompactPhase::Reactive | CompactPhase::FullWindow => {
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c.compact_messages(msgs, self.compact.caps).await
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}
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CompactPhase::Mid { used, rescue } => {
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let conv = self.compact.main_conv.as_str();
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let opt: CompactOpts = compact_opts_mid(
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&self.compact.cfg,
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&self.shared.compact_memory,
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self.summarizer.slot_holds(conv),
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self.summarizer.ep.external,
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conv,
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msgs,
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used,
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self.compact.tools.clone(),
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&self.compact.effort,
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self.compact.kwargs.clone(),
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rescue,
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|m| {
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wire_messages(m, false, &self.compact.cfg.echo)
|
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.0
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.into_owned()
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},
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);
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c.compact_messages_noted(msgs, self.compact.caps, &opt)
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.await
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}
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};
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changed.then_some(out)
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}
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|
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fn compact_refused(&self, used: i64, msgs: &[Message]) -> bool {
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self.shared.compact_memory.refused_skip(
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&self.compact.cfg,
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&self.compact.main_conv,
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used,
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msgs,
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)
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}
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|
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fn drain_queued(&self) -> Vec<Message> {
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(self.queued)()
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}
|
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|
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async fn prepare_images(&self, msgs: &[Message]) {
|
|
self.shared.images.prefetch(&self.shared.store, msgs).await;
|
|
}
|
|
|
|
fn image_data_url(&self, r: &str) -> Option<String> {
|
|
self.shared.images.get(r)
|
|
}
|
|
|
|
fn effort_remember(&self, want: &str, got: &str) {
|
|
self.shared.effort.remember(&self.cfg, want, got);
|
|
}
|
|
|
|
fn echo_refuse(&self, model: &str) {
|
|
self.shared.echo_refusals.refuse(model);
|
|
}
|
|
|
|
fn cache_hint(&self) -> Option<CacheHintFn> {
|
|
None
|
|
}
|
|
|
|
fn preflight(&self) -> Option<PreflightFn> {
|
|
None
|
|
}
|
|
}
|
|
|
|
#[cfg(test)]
|
|
mod tests {
|
|
use super::*;
|
|
|
|
#[test]
|
|
fn base64_standard() {
|
|
assert_eq!(b64(b""), "");
|
|
assert_eq!(b64(b"f"), "Zg==");
|
|
assert_eq!(b64(b"fo"), "Zm8=");
|
|
assert_eq!(b64(b"foo"), "Zm9v");
|
|
assert_eq!(b64(b"foobar"), "Zm9vYmFy");
|
|
assert_eq!(b64(&[0xff, 0xfe, 0x00]), "//4A");
|
|
}
|
|
|
|
#[test]
|
|
fn references_d_images() {
|
|
assert_eq!(image_name("loki-img:ab.png"), Some("ab.png"));
|
|
for bad in [
|
|
"loki-img:",
|
|
"loki-img:../x",
|
|
"loki-img:a/b",
|
|
"loki-img:a\\b",
|
|
"data:x",
|
|
"ab.png",
|
|
] {
|
|
assert_eq!(image_name(bad), None, "{bad}");
|
|
}
|
|
assert_eq!(image_mime("a.png"), "image/png");
|
|
assert_eq!(image_mime("a.webp"), "image/webp");
|
|
assert_eq!(image_mime("a.jpg"), "image/jpeg");
|
|
assert_eq!(image_mime("a.img"), "image/jpeg");
|
|
}
|
|
|
|
#[test]
|
|
fn cache_d_images_borne() {
|
|
let c = ImageCache::new(PathBuf::from("/nulle-part"));
|
|
let big = "x".repeat(IMG_CACHE_MAX / 2 + 1);
|
|
c.put("a.png", big.clone());
|
|
c.put("b.png", big.clone());
|
|
assert_eq!(c.get("loki-img:a.png"), None, "la plus ancienne part");
|
|
assert_eq!(c.get("loki-img:b.png").map(|u| u.len()), Some(big.len()));
|
|
// Une seule image, même trop grosse, reste.
|
|
let c = ImageCache::new(PathBuf::from("/nulle-part"));
|
|
c.put("g.png", "y".repeat(IMG_CACHE_MAX + 1));
|
|
assert!(c.get("loki-img:g.png").is_some());
|
|
}
|
|
|
|
#[test]
|
|
fn reponse_de_l_api_d_outils() {
|
|
let v = json!({
|
|
"label": "ls", "result": "a\nb",
|
|
"diff": [{"op": "+", "text": "x"}], "added": 1, "removed": 2,
|
|
"ask": {"question": "On continue ?", "options": ["oui"]},
|
|
"image": "captures/a.png", "shot": "s1",
|
|
"relay": {"role": "user", "content": [{"type": "text", "text": "Voici la capture demandée."}]}
|
|
});
|
|
let o = tool_outcome(&v, "ls");
|
|
assert_eq!(o.result, "a\nb");
|
|
assert_eq!((o.added, o.removed, o.diff.len()), (1, 2, 1));
|
|
assert_eq!(o.ask.unwrap().question, "On continue ?");
|
|
assert_eq!(
|
|
(o.image.as_str(), o.live_shot.as_str()),
|
|
("captures/a.png", "s1")
|
|
);
|
|
assert_eq!(o.relay.unwrap().role, "user");
|
|
// vision_img seul : le message relayé est bâti ici (seeImageMessage).
|
|
let img = json!({"type": "image_url", "image_url": {"url": "data:image/png;base64,AA=="}});
|
|
let o = tool_outcome(&json!({"result": "ok", "vision_img": img}), "photo.png");
|
|
assert_eq!(
|
|
o.relay.unwrap().content,
|
|
Some(json!([{"type": "text", "text": "Image demandée (photo.png) :"}, img]))
|
|
);
|
|
assert_eq!(
|
|
see_image_message("", json!({})).content.unwrap()[0]["text"],
|
|
"Image :"
|
|
);
|
|
assert_eq!(tool_outcome(&json!({}), "").result, "");
|
|
}
|
|
|
|
#[test]
|
|
fn identifiant_d_un_resultat_complet() {
|
|
let id = tool_res_id("c42");
|
|
let (conv, rand) = id.split_once('.').unwrap();
|
|
assert_eq!((conv, rand.len()), ("c42", 24));
|
|
assert!(tool_res_id(" ").starts_with("nosession."));
|
|
assert_ne!(tool_res_id("c"), tool_res_id("c"));
|
|
}
|
|
}
|