| 1 | #![allow(clippy::items_after_test_module)] |
| 2 | |
| 3 | //! Debug commands: tokens, cost, system, context, undo, retry |
| 4 | |
| 5 | use std::time::Instant; |
| 6 | |
| 7 | use super::CommandResult; |
| 8 | use crate::compaction::estimate_input_tokens_conservative; |
| 9 | use crate::localization::{Locale, MessageId, tr}; |
| 10 | use crate::models::{SystemPrompt, context_window_for_model}; |
| 11 | use crate::tui::app::{App, AppAction, TurnCacheRecord}; |
| 12 | use crate::tui::history::HistoryCell; |
| 13 | |
| 14 | fn token_count(value: Option<u32>, locale: Locale) -> String { |
| 15 | value.map_or_else( |
| 16 | || tr(locale, MessageId::CmdTokensNotReported).to_string(), |
| 17 | |tokens| tokens.to_string(), |
| 18 | ) |
| 19 | } |
| 20 | |
| 21 | fn active_context_summary(app: &App, locale: Locale) -> String { |
| 22 | let estimated = |
| 23 | estimate_input_tokens_conservative(&app.api_messages, app.system_prompt.as_ref()); |
| 24 | match context_window_for_model(&app.model) { |
| 25 | Some(window) => { |
| 26 | let used = estimated.min(window as usize); |
| 27 | let percent = (used as f64 / f64::from(window) * 100.0).clamp(0.0, 100.0); |
| 28 | tr(locale, MessageId::CmdTokensContextWithWindow) |
| 29 | .replace("{used}", &used.to_string()) |
| 30 | .replace("{window}", &window.to_string()) |
| 31 | .replace("{percent}", &format!("{percent:.1}")) |
| 32 | } |
| 33 | None => tr(locale, MessageId::CmdTokensContextUnknownWindow) |
| 34 | .replace("{estimated}", &estimated.to_string()), |
| 35 | } |
| 36 | } |
| 37 | |
| 38 | fn cache_summary(app: &App, locale: Locale) -> String { |
| 39 | match ( |
| 40 | app.session.last_prompt_cache_hit_tokens, |
| 41 | app.session.last_prompt_cache_miss_tokens, |
| 42 | ) { |
| 43 | (Some(hit), Some(miss)) => tr(locale, MessageId::CmdTokensCacheBoth) |
| 44 | .replace("{hit}", &hit.to_string()) |
| 45 | .replace("{miss}", &miss.to_string()), |
| 46 | (Some(hit), None) => { |
| 47 | tr(locale, MessageId::CmdTokensCacheHitOnly).replace("{hit}", &hit.to_string()) |
| 48 | } |
| 49 | (None, Some(miss)) => { |
| 50 | tr(locale, MessageId::CmdTokensCacheMissOnly).replace("{miss}", &miss.to_string()) |
| 51 | } |
| 52 | (None, None) => tr(locale, MessageId::CmdTokensNotReported).to_string(), |
| 53 | } |
| 54 | } |
| 55 | |
| 56 | /// Show token usage for session |
| 57 | pub fn tokens(app: &mut App) -> CommandResult { |
| 58 | let locale = app.ui_locale; |
| 59 | let message_count = app.api_messages.len(); |
| 60 | let chat_count = app.history.len(); |
| 61 | |
| 62 | let report = tr(locale, MessageId::CmdTokensReport) |
| 63 | .replace("{active}", &active_context_summary(app, locale)) |
| 64 | .replace( |
| 65 | "{input}", |
| 66 | &token_count(app.session.last_prompt_tokens, locale), |
| 67 | ) |
| 68 | .replace( |
| 69 | "{output}", |
| 70 | &token_count(app.session.last_completion_tokens, locale), |
| 71 | ) |
| 72 | .replace("{cache}", &cache_summary(app, locale)) |
| 73 | .replace("{total}", &app.session.total_tokens.to_string()) |
| 74 | .replace( |
| 75 | "{cost}", |
| 76 | &app.format_cost_amount_precise(app.session_cost_for_currency(app.cost_currency)), |
| 77 | ) |
| 78 | .replace("{api_messages}", &message_count.to_string()) |
| 79 | .replace("{chat_messages}", &chat_count.to_string()) |
| 80 | .replace("{model}", &app.model); |
| 81 | CommandResult::message(report) |
| 82 | } |
| 83 | |
| 84 | /// Show session cost breakdown |
| 85 | pub fn cost(app: &mut App) -> CommandResult { |
| 86 | let report = tr(app.ui_locale, MessageId::CmdCostReport).replace( |
| 87 | "{cost}", |
| 88 | &app.format_cost_amount_precise(app.session_cost_for_currency(app.cost_currency)), |
| 89 | ); |
| 90 | CommandResult::message(report) |
| 91 | } |
| 92 | |
| 93 | /// Show current system prompt |
| 94 | pub fn system_prompt(app: &mut App) -> CommandResult { |
| 95 | let prompt_text = match &app.system_prompt { |
| 96 | Some(SystemPrompt::Text(text)) => text.clone(), |
| 97 | Some(SystemPrompt::Blocks(blocks)) => blocks |
| 98 | .iter() |
| 99 | .map(|b| b.text.clone()) |
| 100 | .collect::<Vec<_>>() |
| 101 | .join("\n\n---\n\n"), |
| 102 | None => "(no system prompt)".to_string(), |
| 103 | }; |
| 104 | |
| 105 | // Truncate if too long |
| 106 | let display = if prompt_text.len() > 500 { |
| 107 | // Find a valid UTF-8 char boundary at or before byte 500 |
| 108 | let truncate_at = prompt_text |
| 109 | .char_indices() |
| 110 | .take_while(|(i, _)| *i <= 500) |
| 111 | .last() |
| 112 | .map_or(0, |(i, _)| i); |
| 113 | format!( |
| 114 | "{}...\n\n(truncated, {} chars total)", |
| 115 | &prompt_text[..truncate_at], |
| 116 | prompt_text.len() |
| 117 | ) |
| 118 | } else { |
| 119 | prompt_text |
| 120 | }; |
| 121 | |
| 122 | CommandResult::message(format!( |
| 123 | "System Prompt ({} mode):\n─────────────────────────────\n{}", |
| 124 | app.mode.label(), |
| 125 | display |
| 126 | )) |
| 127 | } |
| 128 | |
| 129 | /// Show context window usage |
| 130 | pub fn context(_app: &mut App) -> CommandResult { |
| 131 | CommandResult::action(AppAction::OpenContextInspector) |
| 132 | } |
| 133 | |
| 134 | /// Show per-turn DeepSeek prefix-cache telemetry for the last N turns (#263). |
| 135 | /// |
| 136 | /// `arg` is parsed as a count override (default 10, capped at the ring size). |
| 137 | /// Renders a fixed-width table the user can paste into a bug report. |
| 138 | pub fn cache(app: &mut App, arg: Option<&str>) -> CommandResult { |
| 139 | let want = arg |
| 140 | .and_then(|s| s.trim().parse::<usize>().ok()) |
| 141 | .unwrap_or(10); |
| 142 | let cap = app.session.turn_cache_history.len(); |
| 143 | let count = want |
| 144 | .min(cap) |
| 145 | .min(crate::tui::app::App::TURN_CACHE_HISTORY_CAP); |
| 146 | |
| 147 | if cap == 0 { |
| 148 | return CommandResult::message(tr(app.ui_locale, MessageId::CmdCacheNoData)); |
| 149 | } |
| 150 | |
| 151 | CommandResult::message(format_cache_history(app, count, app.ui_locale)) |
| 152 | } |
| 153 | |
| 154 | fn format_cache_history(app: &App, count: usize, locale: Locale) -> String { |
| 155 | let total = app.session.turn_cache_history.len(); |
| 156 | let start = total.saturating_sub(count); |
| 157 | let rows: Vec<&TurnCacheRecord> = app.session.turn_cache_history.iter().skip(start).collect(); |
| 158 | |
| 159 | let mut totals_input: u64 = 0; |
| 160 | let mut totals_hit: u64 = 0; |
| 161 | let mut totals_miss: u64 = 0; |
| 162 | let mut header = tr(locale, MessageId::CmdCacheHeader) |
| 163 | .replace("{count}", &rows.len().to_string()) |
| 164 | .replace("{total}", &total.to_string()) |
| 165 | .replace("{model}", &app.model); |
| 166 | header.push_str(&"─".repeat(76)); |
| 167 | header.push('\n'); |
| 168 | header.push_str("turn in out hit miss replay ratio age\n"); |
| 169 | header.push_str(&"─".repeat(76)); |
| 170 | header.push('\n'); |
| 171 | |
| 172 | let now = Instant::now(); |
| 173 | let mut body = String::new(); |
| 174 | let absolute_start = total.saturating_sub(rows.len()); |
| 175 | for (i, rec) in rows.iter().enumerate() { |
| 176 | let turn_index = absolute_start + i + 1; |
| 177 | totals_input += u64::from(rec.input_tokens); |
| 178 | |
| 179 | let replay_cell = rec |
| 180 | .reasoning_replay_tokens |
| 181 | .map_or_else(|| "—".to_string(), |t| t.to_string()); |
| 182 | let age = humanize_age(now.saturating_duration_since(rec.recorded_at)); |
| 183 | |
| 184 | // No cache telemetry → render `—` everywhere and don't pollute totals |
| 185 | // with inferred zeros. Some providers (and some routes inside DeepSeek) |
| 186 | // skip the cache fields; including a synthesized 0/N for those turns |
| 187 | // would make every aggregate ratio look broken. |
| 188 | let Some(hit) = rec.cache_hit_tokens else { |
| 189 | body.push_str(&format!( |
| 190 | "{turn:>4} {input:>5} {output:>5} {hit:>5} {miss:>5} {replay:>6} {ratio:>6} {age}\n", |
| 191 | turn = turn_index, |
| 192 | input = rec.input_tokens, |
| 193 | output = rec.output_tokens, |
| 194 | hit = "—", |
| 195 | miss = "—", |
| 196 | replay = replay_cell, |
| 197 | ratio = "—", |
| 198 | age = age, |
| 199 | )); |
| 200 | continue; |
| 201 | }; |
| 202 | |
| 203 | let miss_reported = rec.cache_miss_tokens; |
| 204 | let miss = miss_reported.unwrap_or_else(|| rec.input_tokens.saturating_sub(hit)); |
| 205 | let accounted = u64::from(hit) + u64::from(miss); |
| 206 | let ratio = if accounted == 0 { |
| 207 | " —".to_string() |
| 208 | } else { |
| 209 | format!("{:>5.1}%", 100.0 * f64::from(hit) / accounted as f64) |
| 210 | }; |
| 211 | totals_hit += u64::from(hit); |
| 212 | totals_miss += u64::from(miss); |
| 213 | |
| 214 | let miss_cell = match miss_reported { |
| 215 | Some(_) => format!("{miss}"), |
| 216 | None => format!("{miss}*"), |
| 217 | }; |
| 218 | |
| 219 | body.push_str(&format!( |
| 220 | "{turn:>4} {input:>5} {output:>5} {hit:>5} {miss:>5} {replay:>6} {ratio} {age}\n", |
| 221 | turn = turn_index, |
| 222 | input = rec.input_tokens, |
| 223 | output = rec.output_tokens, |
| 224 | hit = hit, |
| 225 | miss = miss_cell, |
| 226 | replay = replay_cell, |
| 227 | ratio = ratio, |
| 228 | age = age, |
| 229 | )); |
| 230 | } |
| 231 | |
| 232 | let totals_accounted = totals_hit + totals_miss; |
| 233 | let avg_ratio = if totals_accounted == 0 { |
| 234 | "—".to_string() |
| 235 | } else { |
| 236 | format!( |
| 237 | "{:.1}%", |
| 238 | 100.0 * totals_hit as f64 / totals_accounted as f64 |
| 239 | ) |
| 240 | }; |
| 241 | |
| 242 | let mut footer = String::new(); |
| 243 | footer.push_str(&"─".repeat(76)); |
| 244 | footer.push('\n'); |
| 245 | footer.push_str( |
| 246 | &tr(locale, MessageId::CmdCacheTotals) |
| 247 | .replace("{sum_in}", &totals_input.to_string()) |
| 248 | .replace("{sum_hit}", &totals_hit.to_string()) |
| 249 | .replace("{sum_miss}", &totals_miss.to_string()) |
| 250 | .replace("{avg}", &avg_ratio), |
| 251 | ); |
| 252 | footer.push_str(tr(locale, MessageId::CmdCacheFootnote)); |
| 253 | footer.push_str(tr(locale, MessageId::CmdCacheAdvice)); |
| 254 | |
| 255 | format!("{header}{body}{footer}") |
| 256 | } |
| 257 | |
| 258 | fn humanize_age(d: std::time::Duration) -> String { |
| 259 | let secs = d.as_secs(); |
| 260 | if secs < 60 { |
| 261 | format!("{secs}s") |
| 262 | } else if secs < 3600 { |
| 263 | format!("{}m{:02}s", secs / 60, secs % 60) |
| 264 | } else { |
| 265 | format!("{}h{:02}m", secs / 3600, (secs % 3600) / 60) |
| 266 | } |
| 267 | } |
| 268 | |
| 269 | #[cfg(test)] |
| 270 | mod tests { |
| 271 | use super::*; |
| 272 | use crate::config::Config; |
| 273 | use crate::models::{ContentBlock, Message, SystemBlock}; |
| 274 | use crate::tui::app::{App, TuiOptions}; |
| 275 | use std::path::PathBuf; |
| 276 | |
| 277 | fn create_test_app() -> App { |
| 278 | let options = TuiOptions { |
| 279 | model: "deepseek-v4-pro".to_string(), |
| 280 | workspace: PathBuf::from("/tmp/test-workspace"), |
| 281 | config_path: None, |
| 282 | config_profile: None, |
| 283 | allow_shell: false, |
| 284 | use_alt_screen: true, |
| 285 | use_mouse_capture: false, |
| 286 | use_bracketed_paste: true, |
| 287 | max_subagents: 1, |
| 288 | skills_dir: PathBuf::from("/tmp/test-skills"), |
| 289 | memory_path: PathBuf::from("memory.md"), |
| 290 | notes_path: PathBuf::from("notes.txt"), |
| 291 | mcp_config_path: PathBuf::from("mcp.json"), |
| 292 | use_memory: false, |
| 293 | start_in_agent_mode: false, |
| 294 | skip_onboarding: true, |
| 295 | yolo: false, |
| 296 | resume_session_id: None, |
| 297 | initial_input: None, |
| 298 | }; |
| 299 | let mut app = App::new(options, &Config::default()); |
| 300 | app.ui_locale = crate::localization::Locale::En; |
| 301 | app.api_provider = crate::config::ApiProvider::Deepseek; |
| 302 | app |
| 303 | } |
| 304 | |
| 305 | #[test] |
| 306 | fn test_tokens_shows_usage_info() { |
| 307 | let mut app = create_test_app(); |
| 308 | app.session.total_tokens = 1234; |
| 309 | app.session.session_cost = 0.05; |
| 310 | app.session.last_prompt_tokens = Some(100); |
| 311 | app.session.last_completion_tokens = Some(25); |
| 312 | app.session.last_prompt_cache_hit_tokens = Some(70); |
| 313 | app.session.last_prompt_cache_miss_tokens = Some(30); |
| 314 | app.api_messages.push(Message { |
| 315 | role: "user".to_string(), |
| 316 | content: vec![ContentBlock::Text { |
| 317 | text: "test".to_string(), |
| 318 | cache_control: None, |
| 319 | }], |
| 320 | }); |
| 321 | app.history.push(HistoryCell::User { |
| 322 | content: "test".to_string(), |
| 323 | }); |
| 324 | |
| 325 | let result = tokens(&mut app); |
| 326 | assert!(result.message.is_some()); |
| 327 | let msg = result.message.unwrap(); |
| 328 | assert!(msg.contains("Token Usage")); |
| 329 | assert!(msg.contains("Active context:")); |
| 330 | assert!(msg.contains("Last API input:")); |
| 331 | assert!(msg.contains("Last API output:")); |
| 332 | assert!(msg.contains("Cache hit/miss:")); |
| 333 | assert!(msg.contains("70 hit / 30 miss")); |
| 334 | assert!(msg.contains("Cumulative tokens:")); |
| 335 | assert!(msg.contains("Approx session cost:")); |
| 336 | assert!(msg.contains("API messages:")); |
| 337 | assert!(msg.contains("Chat messages:")); |
| 338 | assert!(msg.contains("Model:")); |
| 339 | } |
| 340 | |
| 341 | #[test] |
| 342 | fn test_cost_shows_spending_info() { |
| 343 | let mut app = create_test_app(); |
| 344 | app.session.session_cost = 0.1234; |
| 345 | let result = cost(&mut app); |
| 346 | assert!(result.message.is_some()); |
| 347 | let msg = result.message.unwrap(); |
| 348 | assert!(msg.contains("Session Cost")); |
| 349 | assert!(msg.contains("Approx total spent:")); |
| 350 | assert!(msg.contains("approximate")); |
| 351 | assert!(msg.contains("$0.1234")); |
| 352 | } |
| 353 | |
| 354 | #[test] |
| 355 | fn test_system_prompt_displays_text() { |
| 356 | let mut app = create_test_app(); |
| 357 | app.system_prompt = Some(SystemPrompt::Text("Test system prompt".to_string())); |
| 358 | let result = system_prompt(&mut app); |
| 359 | assert!(result.message.is_some()); |
| 360 | let msg = result.message.unwrap(); |
| 361 | assert!(msg.contains("System Prompt")); |
| 362 | assert!(msg.contains("Test system prompt")); |
| 363 | } |
| 364 | |
| 365 | #[test] |
| 366 | fn test_system_prompt_displays_blocks() { |
| 367 | let mut app = create_test_app(); |
| 368 | app.system_prompt = Some(SystemPrompt::Blocks(vec![ |
| 369 | SystemBlock { |
| 370 | block_type: "text".to_string(), |
| 371 | text: "Block 1".to_string(), |
| 372 | cache_control: None, |
| 373 | }, |
| 374 | SystemBlock { |
| 375 | block_type: "text".to_string(), |
| 376 | text: "Block 2".to_string(), |
| 377 | cache_control: None, |
| 378 | }, |
| 379 | ])); |
| 380 | let result = system_prompt(&mut app); |
| 381 | assert!(result.message.is_some()); |
| 382 | let msg = result.message.unwrap(); |
| 383 | assert!(msg.contains("System Prompt")); |
| 384 | assert!(msg.contains("Block 1")); |
| 385 | assert!(msg.contains("Block 2")); |
| 386 | } |
| 387 | |
| 388 | #[test] |
| 389 | fn test_system_prompt_none() { |
| 390 | let mut app = create_test_app(); |
| 391 | app.system_prompt = None; |
| 392 | let result = system_prompt(&mut app); |
| 393 | assert!(result.message.is_some()); |
| 394 | let msg = result.message.unwrap(); |
| 395 | assert!(msg.contains("(no system prompt)")); |
| 396 | } |
| 397 | |
| 398 | #[test] |
| 399 | fn test_system_prompt_truncates_long_text() { |
| 400 | let mut app = create_test_app(); |
| 401 | let long_text = "x".repeat(600); |
| 402 | app.system_prompt = Some(SystemPrompt::Text(long_text)); |
| 403 | let result = system_prompt(&mut app); |
| 404 | assert!(result.message.is_some()); |
| 405 | let msg = result.message.unwrap(); |
| 406 | assert!(msg.contains("...")); |
| 407 | assert!(msg.contains("chars total")); |
| 408 | } |
| 409 | |
| 410 | #[test] |
| 411 | fn cache_command_reports_no_data_before_first_turn() { |
| 412 | let mut app = create_test_app(); |
| 413 | let result = cache(&mut app, None); |
| 414 | let msg = result.message.expect("cache produces a message"); |
| 415 | assert!(msg.contains("no turns recorded yet"), "got: {msg}"); |
| 416 | } |
| 417 | |
| 418 | #[test] |
| 419 | fn cache_command_renders_recorded_turns_with_ratio() { |
| 420 | let mut app = create_test_app(); |
| 421 | let now = Instant::now(); |
| 422 | // Three turns: 75% hit, 50% hit, miss-only (provider didn't report hit). |
| 423 | app.push_turn_cache_record(TurnCacheRecord { |
| 424 | input_tokens: 4_000, |
| 425 | output_tokens: 200, |
| 426 | cache_hit_tokens: Some(3_000), |
| 427 | cache_miss_tokens: Some(1_000), |
| 428 | reasoning_replay_tokens: None, |
| 429 | recorded_at: now, |
| 430 | }); |
| 431 | app.push_turn_cache_record(TurnCacheRecord { |
| 432 | input_tokens: 6_000, |
| 433 | output_tokens: 250, |
| 434 | cache_hit_tokens: Some(3_000), |
| 435 | cache_miss_tokens: Some(3_000), |
| 436 | reasoning_replay_tokens: Some(150), |
| 437 | recorded_at: now, |
| 438 | }); |
| 439 | // Turn 3: hit reported but provider didn't report miss separately — |
| 440 | // infer miss = input − hit and mark with `*`. |
| 441 | app.push_turn_cache_record(TurnCacheRecord { |
| 442 | input_tokens: 5_000, |
| 443 | output_tokens: 100, |
| 444 | cache_hit_tokens: Some(2_500), |
| 445 | cache_miss_tokens: None, |
| 446 | reasoning_replay_tokens: None, |
| 447 | recorded_at: now, |
| 448 | }); |
| 449 | // Turn 4: no telemetry at all — must not pollute aggregate ratios. |
| 450 | app.push_turn_cache_record(TurnCacheRecord { |
| 451 | input_tokens: 1_000, |
| 452 | output_tokens: 50, |
| 453 | cache_hit_tokens: None, |
| 454 | cache_miss_tokens: None, |
| 455 | reasoning_replay_tokens: None, |
| 456 | recorded_at: now, |
| 457 | }); |
| 458 | |
| 459 | let result = cache(&mut app, None); |
| 460 | let msg = result.message.expect("cache produces a message"); |
| 461 | |
| 462 | // Header reflects total rows and model. |
| 463 | assert!(msg.contains("last 4 of 4 turn(s)"), "got: {msg}"); |
| 464 | // Per-turn ratios are rendered. |
| 465 | assert!(msg.contains("75.0%"), "got: {msg}"); |
| 466 | assert!(msg.contains("50.0%"), "got: {msg}"); |
| 467 | // Turn 3: hit=2500, inferred miss=2500 → 50.0% with `*`-marked miss. |
| 468 | assert!(msg.contains("2500*"), "got: {msg}"); |
| 469 | // Turn 4 (no telemetry) shows em-dashes and is excluded from totals. |
| 470 | // Aggregate over turns 1-3: hit=8500, miss=6500 → 56.7%. |
| 471 | assert!(msg.contains("avg hit ratio: 56.7%"), "got: {msg}"); |
| 472 | // Footer guidance is present. |
| 473 | assert!(msg.contains("70%"), "got: {msg}"); |
| 474 | } |
| 475 | |
| 476 | #[test] |
| 477 | fn cache_command_count_argument_clamps_to_history() { |
| 478 | let mut app = create_test_app(); |
| 479 | for _ in 0..3 { |
| 480 | app.push_turn_cache_record(TurnCacheRecord { |
| 481 | input_tokens: 1_000, |
| 482 | output_tokens: 100, |
| 483 | cache_hit_tokens: Some(500), |
| 484 | cache_miss_tokens: Some(500), |
| 485 | reasoning_replay_tokens: None, |
| 486 | recorded_at: Instant::now(), |
| 487 | }); |
| 488 | } |
| 489 | let result = cache(&mut app, Some("100")); |
| 490 | let msg = result.message.expect("cache produces a message"); |
| 491 | // Asked for 100 turns, only 3 exist — should report "last 3 of 3". |
| 492 | assert!(msg.contains("last 3 of 3 turn(s)"), "got: {msg}"); |
| 493 | } |
| 494 | |
| 495 | #[test] |
| 496 | fn turn_cache_history_is_capped_at_50() { |
| 497 | let mut app = create_test_app(); |
| 498 | for i in 0..(crate::tui::app::App::TURN_CACHE_HISTORY_CAP + 12) { |
| 499 | app.push_turn_cache_record(TurnCacheRecord { |
| 500 | input_tokens: i as u32, |
| 501 | output_tokens: 1, |
| 502 | cache_hit_tokens: Some(i as u32), |
| 503 | cache_miss_tokens: Some(0), |
| 504 | reasoning_replay_tokens: None, |
| 505 | recorded_at: Instant::now(), |
| 506 | }); |
| 507 | } |
| 508 | assert_eq!( |
| 509 | app.session.turn_cache_history.len(), |
| 510 | crate::tui::app::App::TURN_CACHE_HISTORY_CAP |
| 511 | ); |
| 512 | // Oldest record was evicted; newest record is still at the back. |
| 513 | assert_eq!( |
| 514 | app.session.turn_cache_history.back().unwrap().input_tokens, |
| 515 | (crate::tui::app::App::TURN_CACHE_HISTORY_CAP + 11) as u32 |
| 516 | ); |
| 517 | } |
| 518 | |
| 519 | #[test] |
| 520 | fn test_context_shows_usage_stats() { |
| 521 | let mut app = create_test_app(); |
| 522 | app.api_messages.push(Message { |
| 523 | role: "user".to_string(), |
| 524 | content: vec![ContentBlock::Text { |
| 525 | text: "Hello".to_string(), |
| 526 | cache_control: None, |
| 527 | }], |
| 528 | }); |
| 529 | app.history.push(HistoryCell::User { |
| 530 | content: "Hello".to_string(), |
| 531 | }); |
| 532 | |
| 533 | let result = context(&mut app); |
| 534 | assert!(matches!( |
| 535 | result.action, |
| 536 | Some(AppAction::OpenContextInspector) |
| 537 | )); |
| 538 | assert!(result.message.is_none()); |
| 539 | } |
| 540 | |
| 541 | #[test] |
| 542 | fn test_undo_conversation_removes_last_exchange() { |
| 543 | let mut app = create_test_app(); |
| 544 | app.history.push(HistoryCell::User { |
| 545 | content: "Hello".to_string(), |
| 546 | }); |
| 547 | app.history.push(HistoryCell::Assistant { |
| 548 | content: "Hi".to_string(), |
| 549 | streaming: false, |
| 550 | }); |
| 551 | app.api_messages.push(Message { |
| 552 | role: "user".to_string(), |
| 553 | content: vec![], |
| 554 | }); |
| 555 | app.api_messages.push(Message { |
| 556 | role: "assistant".to_string(), |
| 557 | content: vec![], |
| 558 | }); |
| 559 | |
| 560 | let initial_history_len = app.history.len(); |
| 561 | let initial_api_len = app.api_messages.len(); |
| 562 | let result = undo_conversation(&mut app); |
| 563 | |
| 564 | assert!(result.message.is_some()); |
| 565 | let msg = result.message.unwrap(); |
| 566 | assert!(msg.contains("Removed")); |
| 567 | assert!(app.history.len() < initial_history_len); |
| 568 | assert!(app.api_messages.len() < initial_api_len); |
| 569 | } |
| 570 | |
| 571 | #[test] |
| 572 | fn test_undo_conversation_nothing_to_undo() { |
| 573 | let mut app = create_test_app(); |
| 574 | // Clear any default history |
| 575 | app.history.clear(); |
| 576 | app.api_messages.clear(); |
| 577 | let result = undo_conversation(&mut app); |
| 578 | assert!(result.message.is_some()); |
| 579 | let msg = result.message.unwrap(); |
| 580 | assert!(msg.contains("Nothing to undo") || msg.contains("Removed")); |
| 581 | } |
| 582 | |
| 583 | #[test] |
| 584 | fn test_retry_with_previous_message() { |
| 585 | let mut app = create_test_app(); |
| 586 | app.history.push(HistoryCell::User { |
| 587 | content: "Test message".to_string(), |
| 588 | }); |
| 589 | app.history.push(HistoryCell::Assistant { |
| 590 | content: "Response".to_string(), |
| 591 | streaming: false, |
| 592 | }); |
| 593 | |
| 594 | let result = retry(&mut app); |
| 595 | assert!(result.message.is_some()); |
| 596 | let msg = result.message.unwrap(); |
| 597 | assert!(msg.contains("Retrying")); |
| 598 | assert!(msg.contains("Test message")); |
| 599 | assert!(matches!(result.action, Some(AppAction::SendMessage(_)))); |
| 600 | } |
| 601 | |
| 602 | #[test] |
| 603 | fn test_retry_no_previous_message() { |
| 604 | let mut app = create_test_app(); |
| 605 | let result = retry(&mut app); |
| 606 | assert!(result.message.is_some()); |
| 607 | let msg = result.message.unwrap(); |
| 608 | assert!(msg.contains("No previous request to retry")); |
| 609 | assert!(result.action.is_none()); |
| 610 | } |
| 611 | |
| 612 | #[test] |
| 613 | fn test_retry_truncates_long_input() { |
| 614 | let mut app = create_test_app(); |
| 615 | let long_input = "x".repeat(100); |
| 616 | app.history.push(HistoryCell::User { |
| 617 | content: long_input.clone(), |
| 618 | }); |
| 619 | app.history.push(HistoryCell::Assistant { |
| 620 | content: "Response".to_string(), |
| 621 | streaming: false, |
| 622 | }); |
| 623 | |
| 624 | let result = retry(&mut app); |
| 625 | assert!(result.message.is_some()); |
| 626 | let msg = result.message.unwrap(); |
| 627 | assert!(msg.contains("Retrying")); |
| 628 | assert!(msg.contains("...")); |
| 629 | } |
| 630 | } |
| 631 | |
| 632 | /// Remove last message pair (user + assistant). |
| 633 | /// |
| 634 | /// This is the old `/undo` behaviour — it removes the most recent |
| 635 | /// user+assistant conversation pair from history and API messages. |
| 636 | /// The new `/undo` first tries to revert workspace files via |
| 637 | /// [`patch_undo`]; if no snapshots are available it falls back to |
| 638 | /// this function. |
| 639 | pub fn undo_conversation(app: &mut App) -> CommandResult { |
| 640 | // Remove from display history (up to the last user message) |
| 641 | let mut removed_count = 0; |
| 642 | while !app.history.is_empty() { |
| 643 | let last_is_user = matches!(app.history.last(), Some(HistoryCell::User { .. })); |
| 644 | app.pop_history(); |
| 645 | removed_count += 1; |
| 646 | if last_is_user { |
| 647 | break; |
| 648 | } |
| 649 | } |
| 650 | |
| 651 | // Remove from API messages |
| 652 | while let Some(last) = app.api_messages.last() { |
| 653 | if last.role == "user" { |
| 654 | app.api_messages.pop(); |
| 655 | break; |
| 656 | } |
| 657 | app.api_messages.pop(); |
| 658 | } |
| 659 | |
| 660 | if removed_count > 0 { |
| 661 | // Keep tool/index mappings consistent after truncation. |
| 662 | app.tool_cells.clear(); |
| 663 | app.tool_details_by_cell.clear(); |
| 664 | app.exploring_entries.clear(); |
| 665 | app.ignored_tool_calls.clear(); |
| 666 | app.mark_history_updated(); |
| 667 | CommandResult::message(format!("Removed {removed_count} message(s)")) |
| 668 | } else { |
| 669 | CommandResult::message("Nothing to undo") |
| 670 | } |
| 671 | } |
| 672 | |
| 673 | /// Revert the most recent write tool (apply_patch/edit_file/write_file) or turn. |
| 674 | /// |
| 675 | /// Opens the side-git snapshot repo and finds the most recent snapshot, |
| 676 | /// preferring per-tool snapshots (`tool:*`) over pre-turn snapshots |
| 677 | /// (`pre-turn:*`). Restores files from that snapshot and shows a diff |
| 678 | /// summary. Falls back to conversation undo when no snapshots exist. |
| 679 | /// |
| 680 | /// Posts a `HistoryCell::System` entry so the user can see what was |
| 681 | /// reverted in the transcript. |
| 682 | pub fn patch_undo(app: &mut App) -> CommandResult { |
| 683 | let workspace = app.workspace.clone(); |
| 684 | |
| 685 | let repo = match crate::snapshot::SnapshotRepo::open_or_init(&workspace) { |
| 686 | Ok(r) => r, |
| 687 | Err(e) => { |
| 688 | return CommandResult::error(format!( |
| 689 | "Snapshot repo unavailable for {}: {e}", |
| 690 | workspace.display(), |
| 691 | )); |
| 692 | } |
| 693 | }; |
| 694 | |
| 695 | let snapshots = match repo.list(20) { |
| 696 | Ok(s) => s, |
| 697 | Err(e) => { |
| 698 | return CommandResult::error(format!("Failed to list snapshots: {e}")); |
| 699 | } |
| 700 | }; |
| 701 | |
| 702 | if snapshots.is_empty() { |
| 703 | return CommandResult::message("No snapshots found to undo — nothing to revert."); |
| 704 | } |
| 705 | |
| 706 | // Prefer the most recent `tool:` snapshot; fall back to `pre-turn:`. |
| 707 | let target = snapshots |
| 708 | .iter() |
| 709 | .find(|s| s.label.starts_with("tool:")) |
| 710 | .or_else(|| snapshots.iter().find(|s| s.label.starts_with("pre-turn:"))); |
| 711 | |
| 712 | let Some(target) = target else { |
| 713 | return CommandResult::message("No tool or pre-turn snapshots found — nothing to revert."); |
| 714 | }; |
| 715 | |
| 716 | if let Err(e) = repo.restore(&target.id) { |
| 717 | return CommandResult::error(format!("Restore failed: {e}")); |
| 718 | } |
| 719 | |
| 720 | // Show diff stat so the user knows what changed. |
| 721 | let diff_stat = std::process::Command::new("git") |
| 722 | .args(["diff", "--stat"]) |
| 723 | .current_dir(&workspace) |
| 724 | .output() |
| 725 | .ok() |
| 726 | .and_then(|o| { |
| 727 | let s = String::from_utf8_lossy(&o.stdout).trim().to_string(); |
| 728 | if s.is_empty() { None } else { Some(s) } |
| 729 | }); |
| 730 | |
| 731 | let short = &target.id.as_str()[..target.id.as_str().len().min(8)]; |
| 732 | let summary = match diff_stat { |
| 733 | Some(ref stat) => { |
| 734 | format!( |
| 735 | "Restored snapshot '{}' ({}). Files affected:\n{stat}", |
| 736 | target.label, short |
| 737 | ) |
| 738 | } |
| 739 | None => { |
| 740 | format!( |
| 741 | "Restored snapshot '{}' ({}). No diff changes detected.", |
| 742 | target.label, short |
| 743 | ) |
| 744 | } |
| 745 | }; |
| 746 | |
| 747 | // Post a system cell so the reverted state is visible in the transcript. |
| 748 | app.push_history_cell(HistoryCell::System { |
| 749 | content: format!( |
| 750 | "/undo reverted workspace to snapshot '{}' ({})", |
| 751 | target.label, short |
| 752 | ), |
| 753 | }); |
| 754 | |
| 755 | CommandResult::message(summary) |
| 756 | } |
| 757 | |
| 758 | /// Load the last user message back into the composer for editing. |
| 759 | /// |
| 760 | /// Searches `app.history` for the most recent `HistoryCell::User`, copies its |
| 761 | /// content into `app.input`, and positions the cursor at the end so the user |
| 762 | /// can edit and press Enter to resubmit. The original exchange stays visible |
| 763 | /// in the transcript. |
| 764 | pub fn edit(app: &mut App) -> CommandResult { |
| 765 | let last_user = app.history.iter().rev().find_map(|cell| match cell { |
| 766 | HistoryCell::User { content } => Some(content.clone()), |
| 767 | _ => None, |
| 768 | }); |
| 769 | |
| 770 | match last_user { |
| 771 | Some(content) => { |
| 772 | app.input = content; |
| 773 | app.cursor_position = app.input.chars().count(); |
| 774 | app.edit_in_progress = true; |
| 775 | CommandResult::message( |
| 776 | "Last message loaded into composer — edit and press Enter to resubmit", |
| 777 | ) |
| 778 | } |
| 779 | None => CommandResult::message("No previous message to edit"), |
| 780 | } |
| 781 | } |
| 782 | |
| 783 | /// Show git diff output since session start. |
| 784 | /// |
| 785 | /// Runs `git diff --stat` and `git diff --name-only` in the workspace |
| 786 | /// directory. Displays which files have changed and a stat summary. If no |
| 787 | /// changes exist or git fails, returns an appropriate message. |
| 788 | pub fn diff(app: &mut App) -> CommandResult { |
| 789 | let workspace = app.workspace.clone(); |
| 790 | |
| 791 | let name_only_output = std::process::Command::new("git") |
| 792 | .args(["diff", "--name-only"]) |
| 793 | .current_dir(&workspace) |
| 794 | .output(); |
| 795 | let stat_output = std::process::Command::new("git") |
| 796 | .args(["diff", "--stat"]) |
| 797 | .current_dir(&workspace) |
| 798 | .output(); |
| 799 | |
| 800 | match (name_only_output, stat_output) { |
| 801 | (Ok(name_only), Ok(stat)) => { |
| 802 | let name_stdout = String::from_utf8_lossy(&name_only.stdout); |
| 803 | let stat_stdout = String::from_utf8_lossy(&stat.stdout); |
| 804 | |
| 805 | if name_stdout.trim().is_empty() { |
| 806 | return CommandResult::message("No changes since session start"); |
| 807 | } |
| 808 | |
| 809 | let files: Vec<&str> = name_stdout.lines().filter(|l| !l.is_empty()).collect(); |
| 810 | let file_count = files.len(); |
| 811 | let file_list = files.join("\n"); |
| 812 | |
| 813 | // Detect rename entries (e.g. "foo -> bar") and exclude them |
| 814 | // from the file-count header so the user sees only actual |
| 815 | // modifications. |
| 816 | let renamed_count = files.iter().filter(|f| f.contains(" -> ")).count(); |
| 817 | let summary = if renamed_count > 0 { |
| 818 | format!("Changed files ({file_count}, {renamed_count} renamed):\n{file_list}") |
| 819 | } else { |
| 820 | format!("Changed files ({file_count}):\n{file_list}") |
| 821 | }; |
| 822 | |
| 823 | let stat_str = stat_stdout.trim(); |
| 824 | let mut message = summary; |
| 825 | if !stat_str.is_empty() { |
| 826 | message.push_str("\n\n── Stat ──\n"); |
| 827 | message.push_str(stat_str); |
| 828 | } |
| 829 | CommandResult::message(message) |
| 830 | } |
| 831 | (Err(e), _) | (_, Err(e)) => { |
| 832 | CommandResult::message(format!("Git diff failed — is this a git repository?\n{e}")) |
| 833 | } |
| 834 | } |
| 835 | } |
| 836 | |
| 837 | /// Retry last request - remove last exchange and re-send the user's message |
| 838 | pub fn retry(app: &mut App) -> CommandResult { |
| 839 | let last_user_input = app.history.iter().rev().find_map(|cell| match cell { |
| 840 | HistoryCell::User { content } => Some(content.clone()), |
| 841 | _ => None, |
| 842 | }); |
| 843 | |
| 844 | match last_user_input { |
| 845 | Some(input) => { |
| 846 | undo_conversation(app); |
| 847 | let display_input = if input.len() > 50 { |
| 848 | let truncate_at = input |
| 849 | .char_indices() |
| 850 | .take_while(|(i, _)| *i <= 50) |
| 851 | .last() |
| 852 | .map_or(0, |(i, _)| i); |
| 853 | format!("{}...", &input[..truncate_at]) |
| 854 | } else { |
| 855 | input.clone() |
| 856 | }; |
| 857 | CommandResult::with_message_and_action( |
| 858 | format!("Retrying: {display_input}"), |
| 859 | AppAction::SendMessage(input), |
| 860 | ) |
| 861 | } |
| 862 | None => CommandResult::error("No previous request to retry"), |
| 863 | } |
| 864 | } |
| 865 |