feat(presenter): 新建 unlucky-presenter，把 host/状态/DTO/设置桥从 app 迁出（M85 第 1 块）
D26（iced 重写）的关键一次性动作：UI 框架无关的宿主层独立成 crate， Slint 版（crates/app）与 iced 版（crates/app-iced）共用，Slint 退役后不再重写一遍。 - 新建 crates/presenter（package `unlucky-presenter` / lib `unlucky_presenter`）， workspace 登记 + crate 文档头写清「这层为什么存在」、对外表面、UI 侧允许/禁止、 iced 接线骨架、以及哪些东西留在了 crates/app 及为什么。 - `git mv`（保留文件历史）迁入：host/（25 文件）、dto/（11 文件）、state.rs(+tests)、 prefs.rs、settings_bridge.rs、toast.rs、router.rs、dialogs.rs、wizard.rs、 mock.rs、mock_data.rs、backend.rs。模块路径与公开 API 名称不变（`host::install` 等）， 内部实现零改动。 - 新增 `theme`：把原本混在 ui_bind/theme_runtime 里的**纯判据**（CONFIG_POLL_TICKS / SYSTEM_THEME_POLL_TICKS / TILE_REGENERATE_STEP / BackgroundKey / tile_viewport / system_theme_value / 两个 poll 判据）抽出来，附 5 个单测；app 侧改成调用它们。 - crates/app 改为消费者：删掉迁走的文件，`crate::host|state|dto|prefs|settings_bridge| toast|router|dialogs|wizard|mock|mock_data|backend` 全部改写为 `unlucky_presenter::*` （64 处），backend.rs 的 config_path/build_backend 提为 pub。 - crates/app-iced 只登记 unlucky-presenter 依赖，本 mission 不接线。 - prefs.rs 的 2 处 slint 文档引用改写；`grep -rn slint crates/presenter` 现在无输出。
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//! 日志 / 诊断：会话索引 → 会话列表，事件 JSONL → 日志行，规则引擎 → 诊断卡片。
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//!
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//! 与 CLI `ull logs` / `ull diagnose` 同源（`launch::session_index` + `diagnose` 规则引擎）：
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//! 「同一份 jsonl 的两种读法」只有这一处实现（M39 ports/events.rs 的设计）。
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//! 实时滚动 = host 每拍尾随启动会话的 JSONL（只读新增字节），不额外开第二条事件通道。
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use std::io::{Read, Seek, SeekFrom};
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use std::path::{Path, PathBuf};
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use serde_json::Value;
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use unlucky_core::diagnose::collectors::{ExitSignal, SignalOrigin};
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use unlucky_core::diagnose::engine::{Diagnoser, DiagnosisInput};
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use unlucky_core::diagnose::loader::RuleLoader;
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use unlucky_core::launch::session_index::{self, SessionIndexEntry};
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use crate::dto::{
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Diagnosis, DiagnosisReport, LogLevel, LogLine, LogOutcome, LogSession, SessionId,
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};
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use super::env::HostEnv;
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/// 送进规则引擎的默认尾巴行数（与 CLI 同值，避免两条路看到不同证据）。
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pub const DEFAULT_TAIL: usize = 2000;
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/// 日志页一次最多渲染的行数（超出的截断，避免大文件把 UI 拖死）。
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pub const MAX_RENDERED_LINES: usize = 2_000;
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/// 会话索引目录（`.ULL/data/agent/sessions`）。
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pub fn root(env: &HostEnv) -> PathBuf {
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env.sessions_root()
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}
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/// 会话列表（新→旧）。
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pub fn sessions(env: &HostEnv) -> Vec<LogSession> {
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let index = session_index::index_path(&root(env));
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let mut entries = session_index::read_all(&index).unwrap_or_default();
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entries.sort_by(|a, b| b.started_at.cmp(&a.started_at));
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entries.iter().map(session_of).collect()
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}
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/// 索引条目 → 左栏会话行。
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pub fn session_of(entry: &SessionIndexEntry) -> LogSession {
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LogSession {
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id: entry.session_id.clone(),
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instance: if entry.instance_name.is_empty() {
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entry.instance_id.clone()
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} else {
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entry.instance_name.clone()
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},
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when: display_time(&entry.started_at),
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outcome: outcome_of(entry),
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duration_secs: entry.duration_ms / 1000,
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}
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}
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/// 结局：静默失败 > 崩溃（非 0 / crash_found） > 正常。
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pub fn outcome_of(entry: &SessionIndexEntry) -> LogOutcome {
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if entry.silent_failure {
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LogOutcome::SilentFail
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} else if entry.crash_found
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|| entry.exit_code.is_some_and(|code| code != 0)
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|| (entry.exit_code.is_none() && !entry.ended_at.is_empty())
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{
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LogOutcome::Crashed
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} else {
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LogOutcome::Ok
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}
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}
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/// `2026-10-29T19:22:45.123Z` → `10-29 19:22`。
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pub fn display_time(started_at: &str) -> String {
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let body = started_at.trim_end_matches('Z');
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let Some((date, time)) = body.split_once('T') else {
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return started_at.to_string();
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};
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let date = date.get(5..).unwrap_or(date);
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let time = time.get(..5).unwrap_or(time);
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format!("{date} {time}")
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}
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/// 事件流文件路径（`<sessions>/game/<log_path>`）。
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pub fn event_path(env: &HostEnv, entry: &SessionIndexEntry) -> PathBuf {
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root(env).join("game").join(&entry.log_path)
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}
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/// 会话 id 或唯一前缀 → 索引条目。
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fn find(env: &HostEnv, key: &str) -> Option<SessionIndexEntry> {
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let index = session_index::index_path(&root(env));
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let entries = session_index::read_all(&index).ok()?;
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if let Some(exact) = entries.iter().find(|entry| entry.session_id == key) {
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return Some(exact.clone());
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}
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entries
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.iter()
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.find(|entry| entry.session_id.starts_with(key))
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.cloned()
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}
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/// 事件 JSON → 一行日志（`stdout`/`stderr` 的 `payload.line`）。
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pub fn line_of(event: &Value) -> Option<LogLine> {
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let text = event.pointer("/payload/line").and_then(Value::as_str)?;
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let kind = event
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.get("kind")
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.and_then(Value::as_str)
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.unwrap_or_default();
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let level = match event
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.pointer("/payload/level")
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.and_then(Value::as_str)
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.unwrap_or_default()
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{
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"error" => LogLevel::Error,
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"warn" | "warning" => LogLevel::Warn,
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"debug" | "trace" => LogLevel::Debug,
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_ => {
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if kind == "stderr" {
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LogLevel::Warn
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} else {
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LogLevel::Info
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}
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}
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};
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Some(LogLine {
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text: text.to_string(),
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level,
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})
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}
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/// 整个事件流 → 日志行（解析失败的行跳过，容忍被 kill 时截断的尾行）。
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pub fn read_lines(path: &Path) -> Vec<LogLine> {
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let Ok(text) = std::fs::read_to_string(path) else {
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return Vec::new();
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};
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text.lines()
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.filter(|line| !line.trim().is_empty())
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.filter_map(|line| serde_json::from_str::<Value>(line).ok())
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.filter_map(|event| line_of(&event))
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.collect()
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}
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/// 打开一个会话：日志行 + 规则引擎结论。
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pub fn open(env: &HostEnv, key: &str) -> (Vec<LogLine>, Option<DiagnosisReport>) {
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let Some(entry) = find(env, key) else {
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return (Vec::new(), None);
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};
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let path = event_path(env, &entry);
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let lines = read_lines(&path);
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let diagnosis = diagnose_lines(&entry, &lines);
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(lines, diagnosis)
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}
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/// 规则引擎跑一遍（**规则先跑，模型补位**：这里只出规则结论）。
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pub fn diagnose_lines(entry: &SessionIndexEntry, lines: &[LogLine]) -> Option<DiagnosisReport> {
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let stderr_text: String = lines
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.iter()
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.filter(|line| line.level == LogLevel::Error || line.level == LogLevel::Warn)
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.map(|line| line.text.as_str())
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.collect::<Vec<_>>()
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.join("\n");
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let body: String = lines
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.iter()
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.rev()
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.take(DEFAULT_TAIL)
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.map(|line| line.text.as_str())
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.collect::<Vec<_>>()
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.into_iter()
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.rev()
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.collect::<Vec<_>>()
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.join("\n");
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if body.is_empty() {
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return None;
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}
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let error_lines = u32::try_from(
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lines
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.iter()
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.filter(|line| line.level == LogLevel::Error)
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.count(),
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)
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.unwrap_or(u32::MAX);
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let exit = ExitSignal::classify(
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entry.exit_code,
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Some(entry.duration_ms),
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error_lines,
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&stderr_text,
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);
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let mut input = DiagnosisInput::new().with_exit(exit);
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input.push_text(SignalOrigin::Stderr, body);
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let loader = RuleLoader::embedded();
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let report = Diagnoser::new(loader.rule_set().rules().to_vec()).analyze(&input);
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let finding = report
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.findings
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.first()
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.or_else(|| report.secondary.first())?;
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Some(DiagnosisReport {
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session: entry.session_id.clone(),
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diagnosis: Diagnosis {
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rule: finding.rule_id.clone(),
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title: finding.message.clone(),
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confidence: confidence_percent(finding.confidence),
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hint: finding.detail.clone().unwrap_or_else(|| {
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report
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.exit
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.as_ref()
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.map(|exit| exit.exit_type.as_str().to_string())
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.unwrap_or_else(|| "未知退出".to_string())
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}),
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fix: finding
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.materialized_actions()
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.first()
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.map(|action| action.tool.to_string()),
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},
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})
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}
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/// 0.0~1.0 → 0~100（四舍五入）。
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pub fn confidence_percent(confidence: f32) -> u8 {
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let percent = (confidence.clamp(0.0, 1.0) * 100.0).round();
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u8::try_from(percent as u32).unwrap_or(100)
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}
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/// 导入崩溃日志（`hs_err_pid*.log` / `crash-*.txt` / `latest.log`）做规则分析。
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///
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/// 文件名含 `hs_err` 时先走 `hs_err::parse`（结构化字段进规则引擎），否则整份文本当信号喂进去。
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pub fn analyze_crash_file(path: &str) -> Result<(String, DiagnosisReport), String> {
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let path = Path::new(path);
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if !path.is_file() {
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return Err(format!("找不到崩溃日志：{}", path.display()));
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}
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let text = std::fs::read_to_string(path).map_err(|error| format!("读崩溃日志失败：{error}"))?;
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let name = path
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.file_name()
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.map(|name| name.to_string_lossy().to_string())
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.unwrap_or_else(|| "crash.log".to_string());
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let is_hs_err = name.contains("hs_err");
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let mut input = DiagnosisInput::new();
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if is_hs_err {
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input.push_hs_err(unlucky_core::diagnose::hs_err::parse(&text));
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}
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input.push_text(
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if is_hs_err {
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SignalOrigin::HsErr
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} else if name.contains("crash") {
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SignalOrigin::CrashReport
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} else {
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SignalOrigin::LatestLog
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},
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text,
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);
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let loader = RuleLoader::embedded();
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let report = Diagnoser::new(loader.rule_set().rules().to_vec()).analyze(&input);
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let finding = report
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.findings
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.first()
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.or_else(|| report.secondary.first())
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.ok_or_else(|| "规则引擎没有从这份日志里认出已知问题".to_string())?;
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Ok((
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format!("导入的日志：{name}"),
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DiagnosisReport {
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session: format!("file:{name}"),
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diagnosis: Diagnosis {
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rule: finding.rule_id.clone(),
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title: finding.message.clone(),
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confidence: confidence_percent(finding.confidence),
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hint: finding
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.detail
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.clone()
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.unwrap_or_else(|| "规则引擎命中（详见证据行）".to_string()),
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fix: finding
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.materialized_actions()
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.first()
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.map(|action| action.tool.to_string()),
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},
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},
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))
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}
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/// 实时尾随器：只读文件新增的字节，解析出完整的 JSON 行。
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#[derive(Debug, Default)]
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pub struct Tail {
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path: Option<PathBuf>,
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session: Option<SessionId>,
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offset: u64,
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}
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impl Tail {
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/// 开始尾随一个会话。
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pub fn attach(&mut self, path: PathBuf, session: &str) {
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self.path = Some(path);
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self.session = Some(session.to_string());
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self.offset = 0;
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}
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/// 停止尾随。
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pub fn detach(&mut self) {
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self.path = None;
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self.session = None;
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self.offset = 0;
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}
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/// 当前尾随的会话。
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pub fn session(&self) -> Option<&str> {
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self.session.as_deref()
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}
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/// 读新行（返回 `(会话 id, 新行)`；没有新内容返回 `None`）。
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pub fn poll(&mut self) -> Option<(String, Vec<LogLine>)> {
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let path = self.path.clone()?;
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let session = self.session.clone()?;
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let file = std::fs::File::open(&path).ok()?;
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let len = file.metadata().ok()?.len();
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if len <= self.offset {
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return None;
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}
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let mut file = file;
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file.seek(SeekFrom::Start(self.offset)).ok()?;
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let mut buffer = String::new();
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file.read_to_string(&mut buffer).ok()?;
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// 只吃到最后一个换行：半行留到下一拍（避免把 JSON 截断解析成脏行）
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let last_newline = buffer.rfind('\n')?;
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let complete = &buffer[..=last_newline];
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self.offset += u64::try_from(complete.len()).unwrap_or(u64::MAX);
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let lines: Vec<LogLine> = complete
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.lines()
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.filter(|line| !line.trim().is_empty())
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.filter_map(|line| serde_json::from_str::<Value>(line).ok())
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.filter_map(|event| line_of(&event))
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.collect();
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Some((session, lines))
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}
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}
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/// 会话是否已收尾（索引里出现 `ended_at` 或文件停止增长超过一拍）。
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pub fn session_finished(env: &HostEnv, session: &str) -> bool {
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let index = session_index::index_path(&root(env));
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session_index::read_all(&index)
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.unwrap_or_default()
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.iter()
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.any(|entry| entry.session_id == session && !entry.ended_at.is_empty())
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}
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#[cfg(test)]
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#[path = "logs_tests.rs"]
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mod tests;
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Block a user