thndrs 0.1.0

Terminal AI pair programmer with local tools, sessions, MCP, and ACP support
Documentation
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use super::*;
use crate::{input::PromptInput, thndrs_core};
use crossterm::event::{KeyCode, KeyEvent, KeyModifiers};
use std::path::Path;

fn with_isolated_setup_env<T>(home: &Path, f: impl FnOnce() -> T) -> T {
    let _guard = crate::test_env::lock();
    let old_home = std::env::var_os("HOME");
    let old_umans = std::env::var_os(thndrs_core::auth::UMANS_API_KEY_ENV);
    let old_opencode = std::env::var_os(thndrs_core::auth::OPENCODE_GO_KEY_ENV);
    let old_opencode_zen = std::env::var_os(thndrs_core::auth::OPENCODE_ZEN_KEY_ENV);
    let old_chatgpt = std::env::var_os(thndrs_core::auth::CHATGPT_CODEX_ACCESS_TOKEN_ENV);

    unsafe {
        std::env::set_var("HOME", home);
        std::env::remove_var(thndrs_core::auth::UMANS_API_KEY_ENV);
        std::env::remove_var(thndrs_core::auth::OPENCODE_GO_KEY_ENV);
        std::env::remove_var(thndrs_core::auth::OPENCODE_ZEN_KEY_ENV);
        std::env::remove_var(thndrs_core::auth::CHATGPT_CODEX_ACCESS_TOKEN_ENV);
    }

    let result = f();

    unsafe {
        if let Some(value) = old_home {
            std::env::set_var("HOME", value);
        } else {
            std::env::remove_var("HOME");
        }
        if let Some(value) = old_umans {
            std::env::set_var(thndrs_core::auth::UMANS_API_KEY_ENV, value);
        } else {
            std::env::remove_var(thndrs_core::auth::UMANS_API_KEY_ENV);
        }
        if let Some(value) = old_opencode {
            std::env::set_var(thndrs_core::auth::OPENCODE_GO_KEY_ENV, value);
        } else {
            std::env::remove_var(thndrs_core::auth::OPENCODE_GO_KEY_ENV);
        }
        if let Some(value) = old_opencode_zen {
            std::env::set_var(thndrs_core::auth::OPENCODE_ZEN_KEY_ENV, value);
        } else {
            std::env::remove_var(thndrs_core::auth::OPENCODE_ZEN_KEY_ENV);
        }
        if let Some(value) = old_chatgpt {
            std::env::set_var(thndrs_core::auth::CHATGPT_CODEX_ACCESS_TOKEN_ENV, value);
        } else {
            std::env::remove_var(thndrs_core::auth::CHATGPT_CODEX_ACCESS_TOKEN_ENV);
        }
    }

    result
}

#[test]
fn slash_clear_while_working_is_rejected() {
    let mut app = working_app_with_streaming();
    app.transcript.push(Entry::User { text: "keep me".to_string() });
    app.input = PromptInput::from("/clear");

    let result = update(&mut app, &key(KeyCode::Enter, KeyModifiers::NONE));

    assert_eq!(result, None, "/clear should not execute while working");
    assert!(
        app.transcript
            .iter()
            .any(|e| matches!(e, Entry::User { text } if text == "keep me")),
        "transcript should not be cleared while an agent can still emit events"
    );
    assert!(
        app.transcript
            .iter()
            .any(|e| matches!(e, Entry::Status { text } if text.contains("not available"))),
        "/clear should be rejected with a status message"
    );
    assert!(app.input.is_empty(), "input should be cleared after /clear");
}

#[test]
fn slash_help_while_working_executes_immediately() {
    let mut app = working_app_with_streaming();
    app.input = PromptInput::from("/help");

    update(&mut app, &key(KeyCode::Enter, KeyModifiers::NONE));

    assert_eq!(
        app.prompt_accessory,
        PromptAccessory::Help,
        "/help should open help while working"
    );
    assert!(app.input.is_empty(), "input should be cleared after /help");
}

#[test]
fn slash_model_while_working_is_rejected() {
    let mut app = working_app_with_streaming();
    app.input = PromptInput::from("/model");

    update(&mut app, &key(KeyCode::Enter, KeyModifiers::NONE));

    assert_eq!(
        app.prompt_accessory,
        PromptAccessory::None,
        "/model should not open picker while working"
    );
    assert!(
        app.transcript
            .iter()
            .any(|e| matches!(e, Entry::Status { text } if text.contains("not available"))),
        "/model should be rejected with a status message"
    );
}

#[test]
fn slash_skills_while_working_is_rejected() {
    let mut app = working_app_with_streaming();
    app.input = PromptInput::from("/skills");

    update(&mut app, &key(KeyCode::Enter, KeyModifiers::NONE));

    assert_eq!(
        app.prompt_accessory,
        PromptAccessory::None,
        "/skills should not open picker while working"
    );
    assert!(
        app.transcript
            .iter()
            .any(|e| matches!(e, Entry::Status { text } if text.contains("not available"))),
        "/skills should be rejected with a status message"
    );
}

#[test]
fn slash_unknown_while_working_is_rejected() {
    let mut app = working_app_with_streaming();
    app.input = PromptInput::from("/unknown");

    update(&mut app, &key(KeyCode::Enter, KeyModifiers::NONE));

    assert!(
        app.queued_followups.is_empty(),
        "unknown slash command should not be queued as text"
    );
    assert!(
        app.transcript
            .iter()
            .any(|e| matches!(e, Entry::Status { text } if text.contains("not available"))),
        "unknown slash command should be rejected with a status message"
    );
}

#[test]
fn double_slash_while_working_queues_literal_slash_followup() {
    let mut app = working_app_with_streaming();
    app.input = PromptInput::from("//clear after this run");

    update(&mut app, &key(KeyCode::Enter, KeyModifiers::NONE));

    assert_eq!(
        app.queued_followups,
        vec!["/clear after this run".to_string()],
        "double slash should escape a literal slash-prefixed follow-up"
    );
    assert!(app.input.is_empty(), "input should be cleared after queueing");
}

#[test]
fn slash_clear_clears_transcript_and_input() {
    let mut app = fresh_app();
    app.transcript.push(Entry::User { text: String::from("old") });
    app.input = PromptInput::from("/clear");
    update(&mut app, &Msg::Key(KeyEvent::new(KeyCode::Enter, KeyModifiers::NONE)));
    assert!(app.transcript.is_empty());
    assert_eq!(app.input.as_str(), "");
    assert!(!app.quit);
}

#[test]
fn slash_auth_config_and_doctor_append_redacted_output() {
    let mut app = fresh_app();

    app.input = PromptInput::from("/auth status");
    update(&mut app, &key(KeyCode::Enter, KeyModifiers::NONE));
    assert!(matches!(app.transcript.last(), Some(Entry::Status { text }) if text.contains("umans")));

    app.input = PromptInput::from("/config path");
    update(&mut app, &key(KeyCode::Enter, KeyModifiers::NONE));
    assert!(
        matches!(app.transcript.last(), Some(Entry::Status { text }) if text.contains("global:") && text.contains("project:"))
    );

    app.input = PromptInput::from("/config show");
    update(&mut app, &key(KeyCode::Enter, KeyModifiers::NONE));
    assert!(matches!(app.transcript.last(), Some(Entry::Status { text }) if text.contains("effective_config:")));

    app.input = PromptInput::from("/doctor");
    update(&mut app, &key(KeyCode::Enter, KeyModifiers::NONE));
    let transcript = format!("{:?}", app.transcript);
    assert!(transcript.contains("thndrs doctor"));
    assert!(!transcript.contains("test-umans-key"));
}

#[test]
fn context_surface_is_bounded_and_does_not_render_source_content() {
    let mut app = fresh_app();
    let source = app.cwd.join("AGENTS.md");
    std::fs::write(&source, "api_key=source-secret-that-must-not-be-rendered\n").expect("write instructions");
    app.context_sources = vec![crate::context::load_agents_md(&app.cwd).expect("load instructions")];
    app.input = PromptInput::from("/context");

    update(&mut app, &key(KeyCode::Enter, KeyModifiers::NONE));

    assert_eq!(app.prompt_accessory, PromptAccessory::Context);
    let table = app.render_context_table();
    let text = table
        .rows
        .iter()
        .flat_map(|row| row.iter())
        .map(|cell| cell.text.as_str())
        .collect::<Vec<_>>()
        .join(" ");
    assert!(text.contains("budget"));
    assert!(!text.contains("source-secret-that-must-not-be-rendered"));
    assert!(table.rows.len() <= 67, "context table must stay bounded");
}

#[test]
fn tokens_command_exposes_estimate_provider_components_and_error() {
    let mut app = fresh_app();
    let mut accounting = thndrs_agent::ProviderRequestAccounting::from_serialized_request(
        "turn_1",
        "turn_1:request:1",
        1,
        "fixture",
        "fixture-model",
        b"request",
        Vec::new(),
    );
    accounting.provider_usage = Some(
        thndrs_agent::ProviderUsageComponents {
            input_tokens: Some(100),
            output_tokens: Some(7),
            cache_read_input_tokens: Some(4),
            cache_creation_input_tokens: Some(2),
            reasoning_tokens: None,
        }
        .normalize("fixture", thndrs_agent::ProviderUsageRule::AnthropicMessages),
    );
    app.last_request_accounting = Some(accounting);
    app.input = PromptInput::from("/tokens");

    update(&mut app, &key(KeyCode::Enter, KeyModifiers::NONE));

    let output = app
        .transcript
        .iter()
        .find_map(|entry| match entry {
            Entry::Status { text } if text.starts_with("tokens\n") => Some(text.as_str()),
            _ => None,
        })
        .expect("token inspection output");
    assert!(output.contains("estimated/"));
    assert!(output.contains("100 input / 7 output"));
    assert!(output.contains("cache: 4 read / 2 create"));
    assert!(output.contains("normalized input: 106"));
    assert!(output.contains("estimate error:"));
}

#[test]
fn context_export_command_writes_versioned_json_and_markdown() {
    let mut app = fresh_app();
    let json_path = app.cwd.join("context-export.json");
    app.input = PromptInput::from("/context export context-export.json");
    update(&mut app, &key(KeyCode::Enter, KeyModifiers::NONE));
    let json = std::fs::read_to_string(&json_path).expect("json export");
    assert!(json.contains("context-export-v1"));
    assert!(json.contains("model_projection"));

    let markdown_path = app.cwd.join("context-export.md");
    app.input = PromptInput::from("/context export context-export.md markdown");
    update(&mut app, &key(KeyCode::Enter, KeyModifiers::NONE));
    let markdown = std::fs::read_to_string(&markdown_path).expect("markdown export");
    assert!(markdown.starts_with("# Context export"));
    assert!(markdown.contains("## Context items"));
}

#[test]
fn context_pin_drop_recover_and_failed_pin_preserve_prompt_input() {
    let mut app = fresh_app();
    let file = app.cwd.join("notes.md");
    std::fs::write(&file, "private notes").expect("write file");

    app.input = PromptInput::from("/context pin notes.md");
    update(&mut app, &key(KeyCode::Enter, KeyModifiers::NONE));
    assert!(app.input.is_empty(), "successful context action clears its command");
    let pinned_id = app
        .context_ledger
        .as_ref()
        .expect("ledger")
        .items
        .iter()
        .find(|item| item.kind == thndrs_agent::context::ContextItemKind::PinnedFile)
        .expect("pinned item")
        .id
        .clone();

    app.input = PromptInput::from(format!("/context drop {pinned_id}"));
    update(&mut app, &key(KeyCode::Enter, KeyModifiers::NONE));
    assert!(
        app.context_ledger
            .as_ref()
            .expect("ledger")
            .items
            .iter()
            .any(|item| item.id == pinned_id && item.visibility == thndrs_agent::context::ContextVisibility::Dropped)
    );

    app.input = PromptInput::from(format!("/context recover {pinned_id}"));
    update(&mut app, &key(KeyCode::Enter, KeyModifiers::NONE));
    assert!(
        app.context_ledger
            .as_ref()
            .expect("ledger")
            .items
            .iter()
            .any(|item| item.id == pinned_id && item.visibility == thndrs_agent::context::ContextVisibility::Pinned)
    );

    app.input = PromptInput::from("/context pin missing.md");
    update(&mut app, &key(KeyCode::Enter, KeyModifiers::NONE));
    assert_eq!(app.input.as_str(), "/context pin missing.md");
    assert!(format!("{:?}", app.transcript).contains("cannot pin"));
}

#[test]
fn slash_config_edit_reports_cli_only() {
    let mut app = fresh_app();
    app.input = PromptInput::from("/config edit");
    update(&mut app, &key(KeyCode::Enter, KeyModifiers::NONE));

    assert!(matches!(
        app.transcript.last(),
        Some(Entry::Status { text }) if text.contains("config edit is CLI-only")
    ));
}

#[test]
fn slash_command_rejects_api_key_like_extra_argument() {
    let mut app = fresh_app();
    app.input = PromptInput::from("/login umans sk-secret-should-not-appear");
    update(&mut app, &key(KeyCode::Enter, KeyModifiers::NONE));

    assert!(app.first_run_recovery.is_none());
    let transcript = format!("{:?}", app.transcript);
    assert!(transcript.contains("do not accept API keys"));
    assert!(!transcript.contains("sk-secret-should-not-appear"));

    let mut app = fresh_app();
    app.input = PromptInput::from("/login chatgpt-codex access_token=secret-should-not-appear");
    update(&mut app, &key(KeyCode::Enter, KeyModifiers::NONE));

    assert!(app.first_run_recovery.is_none());
    let transcript = format!("{:?}", app.transcript);
    assert!(transcript.contains("do not accept API keys"));
    assert!(!transcript.contains("secret-should-not-appear"));
}

#[test]
fn slash_logout_requires_confirmation_surface() {
    let mut app = fresh_app();
    app.input = PromptInput::from("/logout umans");
    update(&mut app, &key(KeyCode::Enter, KeyModifiers::NONE));

    let recovery = app.first_run_recovery.as_ref().expect("logout recovery");
    assert_eq!(recovery.stage, RecoveryStage::LogoutConfirm);
    assert_eq!(recovery.provider, Some(SetupProviderArg::Umans));
}

#[test]
fn slash_chatgpt_codex_logout_stays_cli_only() {
    let mut app = fresh_app();
    app.input = PromptInput::from("/logout chatgpt-codex");
    update(&mut app, &key(KeyCode::Enter, KeyModifiers::NONE));

    assert!(app.first_run_recovery.is_none());
    assert!(matches!(
        app.transcript.last(),
        Some(Entry::Status { text }) if text.contains("ChatGPT Codex logout is CLI-only")
    ));
}

#[test]
fn slash_setup_and_login_open_recovery_surfaces() {
    let mut app = fresh_app();
    app.input = PromptInput::from("/setup");
    update(&mut app, &key(KeyCode::Enter, KeyModifiers::NONE));
    assert!(matches!(
        app.first_run_recovery.as_ref().map(|recovery| recovery.stage),
        Some(RecoveryStage::ChooseProvider)
    ));

    app.first_run_recovery = None;
    app.input = PromptInput::from("/login opencode-go");
    update(&mut app, &key(KeyCode::Enter, KeyModifiers::NONE));
    let recovery = app.first_run_recovery.as_ref().expect("login recovery");
    assert_eq!(recovery.stage, RecoveryStage::EnterKey);
    assert_eq!(recovery.provider, Some(SetupProviderArg::OpencodeGo));
}

#[test]
fn slash_setup_uses_chatgpt_provider_aware_recovery_for_chatgpt_model() {
    let mut app = fresh_app();
    app.model = "chatgpt-codex/gpt-5.5".to_string();
    app.cli.model = app.model.clone();
    app.input = PromptInput::from("/setup");

    update(&mut app, &key(KeyCode::Enter, KeyModifiers::NONE));

    let recovery = app.first_run_recovery.as_ref().expect("setup recovery");
    assert_eq!(recovery.stage, RecoveryStage::ChooseProvider);
    assert_eq!(recovery.provider, Some(SetupProviderArg::ChatgptCodex));
}

#[test]
fn slash_setup_writes_project_model_and_prompts_for_api_key() {
    let dir = tempfile::tempdir().expect("create temp dir");
    let home = dir.path().join("home");
    std::fs::create_dir_all(&home).expect("create home");
    with_isolated_setup_env(&home, || {
        let cli = Cli { cwd: dir.path().to_path_buf(), ..Cli::default() };
        let mut app = App::from_cli(&cli);
        app.session_writer = None;
        app.first_run_recovery = None;
        app.input = PromptInput::from("/setup");

        update(&mut app, &key(KeyCode::Enter, KeyModifiers::NONE));
        update(&mut app, &key(KeyCode::Enter, KeyModifiers::NONE));

        let recovery = app.first_run_recovery.as_ref().expect("credential entry");
        assert_eq!(recovery.stage, RecoveryStage::MissingCredential);
        assert_eq!(recovery.provider, Some(SetupProviderArg::Umans));
        assert!(app.model.is_empty(), "authentication precedes model selection");
    });
}

#[test]
fn slash_setup_can_choose_chatgpt_and_write_project_model() {
    let dir = tempfile::tempdir().expect("create temp dir");
    let home = dir.path().join("home");
    let workspace = dir.path().join("workspace");
    std::fs::create_dir_all(&home).expect("create home");
    std::fs::create_dir_all(&workspace).expect("create workspace");
    with_isolated_setup_env(&home, || {
        let cli = Cli { cwd: workspace.clone(), ..Cli::default() };
        let mut app = App::from_cli(&cli);
        app.session_writer = None;
        app.first_run_recovery = None;
        app.model = "chatgpt-codex/gpt-5.5".to_string();
        app.cli.model = app.model.clone();
        app.input = PromptInput::from("/setup");

        update(&mut app, &key(KeyCode::Enter, KeyModifiers::NONE));
        update(&mut app, &key(KeyCode::Enter, KeyModifiers::NONE));

        let recovery = app.first_run_recovery.as_ref().expect("chatgpt recovery");
        assert_eq!(recovery.stage, RecoveryStage::MissingCredential);
        assert_eq!(recovery.provider, Some(SetupProviderArg::ChatgptCodex));
    });
}

#[test]
fn slash_chatgpt_codex_login_opens_oauth_recovery_surface() {
    let mut app = fresh_app();
    app.input = PromptInput::from("/login chatgpt-codex");
    update(&mut app, &key(KeyCode::Enter, KeyModifiers::NONE));

    let recovery = app.first_run_recovery.as_ref().expect("login recovery");
    assert_eq!(recovery.stage, RecoveryStage::MissingCredential);
    assert_eq!(recovery.provider, Some(SetupProviderArg::ChatgptCodex));
}

#[test]
fn slash_chatgpt_codex_login_surface_starts_tui_oauth() {
    let mut app = fresh_app();
    app.chatgpt_oauth_driver = ChatGptOAuthDriver {
        request_device_code: oauth_request_ok,
        poll_device_code_once: oauth_poll_pending,
        write_credentials: oauth_write_ok,
        ..Default::default()
    };
    app.input = PromptInput::from("/login chatgpt-codex");

    update(&mut app, &key(KeyCode::Enter, KeyModifiers::NONE));
    update(&mut app, &key(KeyCode::Down, KeyModifiers::NONE));
    update(&mut app, &key(KeyCode::Enter, KeyModifiers::NONE));

    let recovery = app.first_run_recovery.as_ref().expect("oauth recovery");
    assert_eq!(recovery.stage, RecoveryStage::ChatGptOAuthPolling);
    assert!(recovery.chatgpt_oauth.is_some());
}

#[test]
fn slash_quit_sets_quit_flag() {
    let mut app = fresh_app();
    app.input = PromptInput::from("/quit");
    let follow = update(&mut app, &Msg::Key(KeyEvent::new(KeyCode::Enter, KeyModifiers::NONE)));
    assert!(app.quit);
    assert_eq!(follow, Some(Msg::Quit));
    assert_eq!(app.input.as_str(), "");
}

#[test]
fn slash_exit_also_quits() {
    let mut app = fresh_app();
    app.input = PromptInput::from("/exit");
    update(&mut app, &Msg::Key(KeyEvent::new(KeyCode::Enter, KeyModifiers::NONE)));
    assert!(app.quit);
}

#[test]
fn unknown_slash_command_is_ignored() {
    let mut app = fresh_app();
    app.input = PromptInput::from("/bogus");
    update(&mut app, &Msg::Key(KeyEvent::new(KeyCode::Enter, KeyModifiers::NONE)));
    assert!(!app.quit);
    assert!(app.transcript.is_empty());
    assert_eq!(app.input.as_str(), "/bogus");
}

#[test]
fn slash_mcp_lists_empty_config() {
    let temp = tempfile::tempdir().expect("tempdir");
    let mut app = fresh_app();
    app.cwd = temp.path().to_path_buf();
    app.input = PromptInput::from("/mcp");

    update(&mut app, &Msg::Key(KeyEvent::new(KeyCode::Enter, KeyModifiers::NONE)));

    assert!(
        matches!(app.transcript.last(), Some(Entry::Status { text }) if text.contains("no MCP servers configured"))
    );
}

#[test]
fn slash_mcp_tools_requires_name() {
    let mut app = fresh_app();
    app.input = PromptInput::from("/mcp tools ");

    update(&mut app, &Msg::Key(KeyEvent::new(KeyCode::Enter, KeyModifiers::NONE)));

    assert!(matches!(app.transcript.last(), Some(Entry::Error { text }) if text.contains("usage: /mcp tools <name>")));
}