synaps 0.11.0

Terminal-native AI agent runtime — parallel orchestration, reactive subagents, MCP, autonomous supervision
Documentation
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use crossterm::event::{self, Event, KeyCode};
use crossterm::terminal::{disable_raw_mode, enable_raw_mode};
use std::io::{self, IsTerminal, Write};
use std::path::PathBuf;
use std::process::Command;
use synaps_cli::{auth, config};

#[derive(Debug, Clone, Copy, PartialEq, Eq)]
struct StaticProviderId(&'static str);

#[derive(Debug, Clone, Copy, PartialEq, Eq)]
enum LoginTarget {
    OAuth(auth::OAuthProviderId),
    Cloud(auth::CloudProviderId),
    Static(StaticProviderId),
}

#[derive(Debug, Clone, Copy)]
struct LoginProvider {
    target: LoginTarget,
    name: &'static str,
    description: &'static str,
    recommended: bool,
}

impl LoginProvider {
    fn key(self) -> &'static str {
        match self.target {
            LoginTarget::OAuth(auth::OAuthProviderId::Anthropic) => "claude",
            LoginTarget::OAuth(id) => id.as_str(),
            LoginTarget::Cloud(id) => id.as_str(),
            LoginTarget::Static(StaticProviderId(key)) => key,
        }
    }
}

const LOGIN_BANNER: &[&str] = &[
    " ███████ ██    ██ ███    ██  █████  ██████  ███████",
    " ██       ██  ██  ████   ██ ██   ██ ██   ██ ██    ",
    " ███████   ████   ██ ██  ██ ███████ ██████  ███████",
    "      ██    ██    ██  ██ ██ ██   ██ ██           ██",
    " ███████    ██    ██   ████ ██   ██ ██      ███████",
];
const LOGIN_PICKER_PADDING: &str = "  ";

pub async fn run(
    profile: Option<String>,
    provider_key: Option<String>,
    account: Option<String>,
) -> Result<(), String> {
    if let Some(ref prof) = profile {
        synaps_cli::config::set_profile(Some(prof.clone()));
    }

    let _log_guard = synaps_cli::logging::init_logging();

    // Validate the account label at the CLI boundary, before any provider
    // flow starts. `--account` only applies to OAuth providers.
    let account = match account.as_deref() {
        None => None,
        Some(raw) => Some(auth::Account::parse(raw).map_err(|e| {
            eprintln!("error: invalid --account: {e}");
            format!("invalid --account: {e}")
        })?),
    };
    if account.is_some() && provider_key.is_none() {
        eprintln!("error: --account requires --provider <oauth-provider>");
        return Err("--account requires --provider".into());
    }

    let providers = login_providers();
    let selected = if let Some(ref key) = provider_key {
        match find_provider(&providers, key) {
            Some(p) => p,
            None => {
                eprintln!("error: unknown provider '{}'", key);
                eprintln!("valid provider keys:");
                for p in &providers {
                    eprintln!("  {}", p.key());
                }
                return Err(format!("unknown provider '{}'", key));
            }
        }
    } else {
        match select_provider(&providers) {
            Ok(provider) => provider,
            Err(e) => {
                eprintln!("\n\x1b[31m✗ Login failed: {}\x1b[0m", e);
                return Err(e);
            }
        }
    };

    match selected.target {
        LoginTarget::OAuth(id) => {
            let cred = auth::CredentialRef::new(id, account.unwrap_or_default());
            run_oauth_login(selected, cred, profile).await
        }
        LoginTarget::Cloud(id) if account.is_none() => run_cloud_login(selected, id, profile).await,
        LoginTarget::Static(_) if account.is_none() => run_api_key_login(selected, profile),
        LoginTarget::Cloud(_) | LoginTarget::Static(_) => {
            eprintln!(
                "error: --account applies to OAuth providers only ({} is not one)",
                selected.key()
            );
            Err("--account applies to OAuth providers only".into())
        }
    }
}

/// Interior width of the login banner box (between the `║` borders).
const BANNER_INNER: usize = 38;

/// Box rows for `prefix` + `text`, word-wrapped to the banner interior with
/// continuation lines aligned under the text, so long provider names or
/// descriptions never break the right border. Over-long single words are
/// hard-split.
fn banner_lines(prefix: &str, text: &str) -> Vec<String> {
    let indent = 2 + prefix.chars().count();
    let width = BANNER_INNER.saturating_sub(indent).max(1);
    let mut rows: Vec<String> = Vec::new();
    let mut current = String::new();
    let push_word = |word: &str, current: &mut String, rows: &mut Vec<String>| {
        let mut word: Vec<char> = word.chars().collect();
        loop {
            let used = current.chars().count();
            let sep = usize::from(used > 0);
            if used + sep + word.len() <= width {
                if sep == 1 {
                    current.push(' ');
                }
                current.extend(word.iter());
                return;
            }
            if used > 0 {
                rows.push(std::mem::take(current));
                continue;
            }
            let rest = word.split_off(width);
            rows.push(word.iter().collect());
            word = rest;
            if word.is_empty() {
                return;
            }
        }
    };
    for word in text.split_whitespace() {
        push_word(word, &mut current, &mut rows);
    }
    if !current.is_empty() || rows.is_empty() {
        rows.push(current);
    }
    rows.into_iter()
        .enumerate()
        .map(|(i, row)| {
            let lead = if i == 0 {
                format!("  {prefix}")
            } else {
                " ".repeat(indent)
            };
            format!("║{lead}{row:<width$}║")
        })
        .collect()
}

async fn run_oauth_login(
    provider: LoginProvider,
    cred: auth::CredentialRef,
    profile: Option<String>,
) -> Result<(), String> {
    eprintln!("╔══════════════════════════════════════╗");
    eprintln!("║        SynapsCLI — Login             ║");
    eprintln!("╠══════════════════════════════════════╣");
    for line in banner_lines("Sign in with ", provider.name)
        .into_iter()
        .chain(banner_lines("", provider.description))
        .chain(banner_lines("Account: ", cred.account.label_str()))
    {
        eprintln!("{line}");
    }
    eprintln!("╚══════════════════════════════════════╝");

    if let Ok(Some(existing)) = auth::load_credential(&cred) {
        if !auth::is_token_expired(&existing) {
            eprintln!("\n\x1b[33m⚠ Already logged in ({cred}) with a valid token.\x1b[0m");
            eprintln!("  Expires: {}", format_expiry(existing.expires));
            eprintln!("  Continuing will replace the credential in that slot only.\n");
        } else {
            eprintln!("\n\x1b[33m⚠ Existing token for {cred} is expired. Logging in fresh.\x1b[0m\n");
        }
    }

    // The provider flow returns the credential UNSAVED; the duplicate-seat
    // scan and the write then happen inside one locked read-modify-write of
    // auth.json, so a login into a named slot never touches the default slot
    // and two slots can never end up owning the same seat.
    let mut creds = match auth::provider::login_unsaved(cred.provider).await {
        Ok(creds) => creds,
        Err(e) => {
            eprintln!("\n\x1b[31m✗ Login failed: {}\x1b[0m", e);
            eprintln!("  Please try again.\n");
            return Err(e);
        }
    };
    let mut metadata = auth::AccountMetadata {
        identity: None,
        added_at: Some(synaps_cli::epoch_millis() / 1000),
    };
    // Seat identity: Codex reads it off the JWT; Anthropic tokens are opaque,
    // so the profile endpoint is asked once, before persistence, so the
    // duplicate guard below has an `accountId` to compare. A lookup failure
    // never aborts a login that already succeeded at the provider — the
    // guard then reports `NoEvidence` and `synaps auth identify` can backfill.
    let seat = match auth::identity_http_client() {
        Ok(client) => auth::resolve_seat(cred.provider, &creds.access, &client, None).await,
        Err(e) => auth::SeatResolution::Failed(e),
    };
    match seat {
        auth::SeatResolution::Resolved(seat) => {
            if creds.account_id.is_none() {
                creds.account_id = Some(seat.account_id);
            }
            metadata.identity = seat.identity;
        }
        auth::SeatResolution::Failed(msg) => {
            eprintln!(
                "\n\x1b[33m⚠ could not verify {} account identity ({msg}); a duplicate of another slot cannot be detected.\x1b[0m",
                provider.name
            );
            eprintln!("  Run `synaps auth identify` later to record it.");
        }
        auth::SeatResolution::Unsupported => {}
    }
    let outcome = match auth::save_credential_unless_duplicate(&cred, &creds, &metadata) {
        Ok(outcome) => outcome,
        Err(e) => {
            eprintln!("\n\x1b[31m✗ Login succeeded at the provider but could not be stored: {}\x1b[0m", e);
            eprintln!("  Nothing was written.\n");
            return Err(e);
        }
    };
    match outcome.evidence {
        auth::IdentityEvidence::Duplicate(existing) => {
            eprintln!(
                "\n\x1b[31m✗ Not stored: this {} seat is already connected as account '{}'.\x1b[0m",
                provider.name, existing
            );
            eprintln!(
                "  Two slots for one seat would spend its quota twice and rotate one refresh token from two owners."
            );
            eprintln!(
                "  Use `synaps auth use --provider {} --account {}` instead, or remove that slot first.\n",
                cred.provider, existing
            );
            return Err(format!("duplicate seat: already connected as '{existing}'"));
        }
        auth::IdentityEvidence::NoEvidence => {
            eprintln!(
                "\n\x1b[33m⚠ {} exposes no trustworthy account identity: a duplicate of another slot cannot be detected.\x1b[0m",
                provider.name
            );
        }
        auth::IdentityEvidence::NoDuplicate => {}
    }
    eprintln!("\n\x1b[32m✓ Login successful!\x1b[0m");
    eprintln!("  Account: {cred}");
    if let Some(identity) = &metadata.identity {
        eprintln!("  Identity: {identity}");
    }
    eprintln!("  Token saved to: {}", auth::auth_file_path().display());
    eprintln!("  Expires: {}", format_expiry(creds.expires));
    if !cred.account.is_default() {
        eprintln!(
            "  Select it with: synaps auth use --provider {} --account {}",
            cred.provider,
            cred.account.label_str()
        );
    }
    eprintln!("\n  You can now use SynapsCLI.\n");
    continue_to_main_app(profile);
    Ok(())
}

struct TerminalCloudLoginUi;

impl auth::cloud_login::CloudLoginUi for TerminalCloudLoginUi {
    fn present_challenge(&mut self, challenge: auth::cloud_login::CloudLoginChallenge) {
        match challenge {
            auth::cloud_login::CloudLoginChallenge::DeviceCode {
                verification_uri,
                user_code,
            } => eprintln!("Open {verification_uri} and enter code {user_code}"),
            auth::cloud_login::CloudLoginChallenge::AuthorizationUrl { url } => {
                eprintln!("Open this URL to authorize:\n{url}")
            }
        }
    }

    fn prompt_config(
        &mut self,
        variable: &'static str,
        label: &'static str,
    ) -> Result<String, String> {
        if !io::stdin().is_terminal() {
            return Err(format!(
                "non-interactive AWS login requires {variable} or saved broker cloud config"
            ));
        }
        eprint!("{label} ({variable}): ");
        io::stderr().flush().map_err(|e| e.to_string())?;
        let mut value = String::new();
        io::stdin()
            .read_line(&mut value)
            .map_err(|e| e.to_string())?;
        Ok(value)
    }

    fn select(
        &mut self,
        kind: auth::cloud_login::CloudSelectionKind,
        choices: &[auth::cloud_login::CloudLoginChoice],
    ) -> Result<String, String> {
        let name = match kind {
            auth::cloud_login::CloudSelectionKind::Account => "account",
            auth::cloud_login::CloudSelectionKind::Role => "role",
        };
        if !io::stdin().is_terminal() {
            return Err(format!(
                "multiple {name}s; set SYNAPS_AWS_{}",
                if matches!(kind, auth::cloud_login::CloudSelectionKind::Account) {
                    "ACCOUNT_ID"
                } else {
                    "ROLE_NAME"
                }
            ));
        }
        eprintln!("Select {name}:");
        for (i, choice) in choices.iter().enumerate() {
            eprintln!("  {}. {} {}", i + 1, choice.id, choice.label);
        }
        let mut line = String::new();
        io::stdin()
            .read_line(&mut line)
            .map_err(|e| e.to_string())?;
        let i: usize = line.trim().parse().map_err(|_| "invalid selection")?;
        choices
            .get(i.saturating_sub(1))
            .map(|v| v.id.clone())
            .ok_or_else(|| "invalid selection".into())
    }
}

async fn run_cloud_login(
    provider: LoginProvider,
    id: auth::CloudProviderId,
    profile: Option<String>,
) -> Result<(), String> {
    let mut ui = TerminalCloudLoginUi;
    let result = auth::cloud_login::login(id, &mut ui).await;
    match result {
        Ok(()) => {
            eprintln!("\n\x1b[32m✓ {} login successful\x1b[0m", provider.name);
            eprintln!("  Credentials saved to the broker credential store.");
            continue_to_main_app(profile);
            Ok(())
        }
        Err(message) => {
            eprintln!(
                "\n\x1b[31m✗ {} login failed: {}\x1b[0m",
                provider.name, message
            );
            Err(message)
        }
    }
}

fn run_api_key_login(provider: LoginProvider, profile: Option<String>) -> Result<(), String> {
    eprintln!("╔══════════════════════════════════════╗");
    eprintln!("║        SynapsCLI — Login             ║");
    eprintln!("╠══════════════════════════════════════╣");
    eprintln!("║  Add API key for {:<18}║", provider.name);
    eprintln!("║  OpenAI-compatible endpoint          ║");
    eprintln!("╚══════════════════════════════════════╝");

    let config_key = format!("provider.{}", provider.key());
    if let Some(existing) = config::load_config().provider_keys.get(provider.key()) {
        if !existing.is_empty() {
            eprintln!(
                "\n\x1b[33m⚠ API key already configured for {}.\x1b[0m",
                provider.name
            );
            eprintln!("  Continuing will replace provider.{}.\n", provider.key());
        }
    }

    eprintln!("\nPaste your {} API key.", provider.name);
    eprint!("{}: ", config_key);
    let _ = io::stderr().flush();

    let api_key = match read_secret_line() {
        Ok(api_key) => api_key,
        Err(e) => {
            eprintln!("\n\x1b[31m✗ Login failed: {}\x1b[0m", e);
            return Err(e);
        }
    };

    let api_key = api_key.trim();
    if api_key.is_empty() {
        eprintln!("\n\x1b[31m✗ Login failed: API key cannot be empty\x1b[0m");
        return Err("API key cannot be empty".into());
    }

    save_api_key(&config_key, provider, api_key)?;
    continue_to_main_app(profile);
    Ok(())
}

fn read_secret_line() -> Result<String, String> {
    if !io::stdin().is_terminal() {
        let mut input = String::new();
        io::stdin()
            .read_line(&mut input)
            .map_err(|e| e.to_string())?;
        return Ok(input);
    }

    let _raw_guard = RawModeGuard::new()?;
    let mut input = String::new();

    loop {
        match event::read().map_err(|e| e.to_string())? {
            Event::Key(key) => match key.code {
                KeyCode::Enter => {
                    eprint!("\r\n");
                    let _ = io::stderr().flush();
                    return Ok(input);
                }
                KeyCode::Esc => {
                    eprint!("\r\n");
                    return Err("Login canceled".to_string());
                }
                KeyCode::Backspace => {
                    if input.pop().is_some() {
                        eprint!("\x08 \x08");
                        let _ = io::stderr().flush();
                    }
                }
                KeyCode::Char(c) if !c.is_control() => {
                    input.push(c);
                    eprint!("*");
                    let _ = io::stderr().flush();
                }
                _ => {}
            },
            Event::Paste(text) => {
                input.push_str(&text);
                eprint!("{}", "*".repeat(text.chars().count()));
                let _ = io::stderr().flush();
            }
            _ => {}
        }
    }
}

fn main_app_args(profile: Option<String>) -> Vec<String> {
    match profile {
        Some(profile) if !profile.trim().is_empty() => vec!["--profile".to_string(), profile],
        _ => Vec::new(),
    }
}

fn main_app_launch_targets(current_exe: Option<PathBuf>) -> Vec<PathBuf> {
    let mut targets = vec![PathBuf::from("synaps")];
    if let Some(current_exe) = current_exe {
        if current_exe != PathBuf::from("synaps") {
            targets.push(current_exe);
        }
    }
    targets
}

fn should_prompt_to_open_main_app(interactive: bool) -> bool {
    interactive
}

fn wait_for_enter_to_open_main_app() {
    eprintln!("Press Enter to open SynapsCLI…");
    let _ = io::stderr().flush();
    let mut line = String::new();
    let _ = io::stdin().read_line(&mut line);
}

fn continue_to_main_app(profile: Option<String>) {
    if !should_prompt_to_open_main_app(io::stdin().is_terminal() && io::stderr().is_terminal()) {
        return;
    }

    wait_for_enter_to_open_main_app();
    launch_main_app_or_exit(profile);
}

fn launch_main_app_or_exit(profile: Option<String>) -> ! {
    let args = main_app_args(profile);
    let targets = main_app_launch_targets(std::env::current_exe().ok());

    #[cfg(unix)]
    {
        use std::os::unix::process::CommandExt;
        for target in &targets {
            let err = Command::new(target).args(&args).exec();
            eprintln!("Failed to launch {}: {}", target.display(), err);
        }
        std::process::exit(1);
    }

    #[cfg(not(unix))]
    {
        for target in &targets {
            match Command::new(target).args(&args).status() {
                Ok(status) => std::process::exit(status.code().unwrap_or(1)),
                Err(err) => eprintln!("Failed to launch {}: {}", target.display(), err),
            }
        }
        std::process::exit(1);
    }
}

fn save_api_key(_config_key: &str, provider: LoginProvider, api_key: &str) -> Result<(), String> {
    // Static keys are broker-owned: persist into the broker's credential
    // store (auth.json, 0600, atomic merge write) rather than the plaintext
    // config file. Legacy `provider.<key>` config entries keep working via
    // broker-side discovery/migration.
    match auth::save_static_key(provider.key(), api_key) {
        Ok(()) => {
            eprintln!("\n\x1b[32m✓ API key saved!\x1b[0m");
            eprintln!("  Provider: {}", provider.key());
            eprintln!(
                "  Broker credential store: {}",
                auth::auth_file_path().display()
            );
            eprintln!("\n  Use models as `{}/<model-id>`.\n", provider.key());
            Ok(())
        }
        Err(e) => {
            eprintln!("\n\x1b[31m✗ Login failed: {}\x1b[0m", e);
            Err(e)
        }
    }
}

/// Canonical storage key of a login target's DEFAULT slot (OAuth providers
/// use the typed id, never the CLI alias). Named slots append `@<label>`.
#[cfg(test)]
fn oauth_storage_key(provider: LoginProvider) -> &'static str {
    match provider.target {
        LoginTarget::OAuth(id) => id.as_str(),
        _ => provider.key(),
    }
}

fn find_provider(providers: &[LoginProvider], key: &str) -> Option<LoginProvider> {
    let key_lower = key.to_lowercase();
    providers
        .iter()
        .find(|p| p.key().to_lowercase() == key_lower)
        .copied()
}

fn login_providers() -> Vec<LoginProvider> {
    let mut oauth: Vec<_> = auth::provider::registry().iter().copied().collect();
    oauth.sort_by_key(|provider| !provider.recommended);
    let mut providers: Vec<_> = oauth
        .into_iter()
        .map(|provider| LoginProvider {
            target: LoginTarget::OAuth(provider.id),
            name: provider.display_name,
            description: provider.description,
            recommended: provider.recommended,
        })
        .collect();

    providers.extend(
        synaps_cli::auth::cloud::cloud_provider_descriptors()
            .iter()
            .map(|provider| LoginProvider {
                target: LoginTarget::Cloud(provider.id),
                name: provider.display_name,
                description: if provider.registration_required {
                    "typed broker OAuth (registration required)"
                } else {
                    "IAM Identity Center + broker-side SigV4"
                },
                recommended: false,
            }),
    );

    providers.extend(
        synaps_cli::runtime::openai::registry::providers()
            .iter()
            .map(|provider| LoginProvider {
                target: LoginTarget::Static(StaticProviderId(provider.key)),
                name: provider.name,
                description: "API key",
                recommended: false,
            }),
    );

    providers
}

fn select_provider(providers: &[LoginProvider]) -> Result<LoginProvider, String> {
    if providers.is_empty() {
        return Err("No login providers are available".to_string());
    }

    if !io::stdin().is_terminal() || !io::stderr().is_terminal() {
        let visible = filtered_provider_indices(providers, "");
        render_provider_picker(providers, &visible, 0, "");
        return Ok(providers[0]);
    }

    let _raw_guard = RawModeGuard::new()?;
    let mut selected = 0usize;
    let mut query = String::new();

    loop {
        let visible = filtered_provider_indices(providers, &query);
        if selected >= visible.len() {
            selected = visible.len().saturating_sub(1);
        }

        render_provider_picker(providers, &visible, selected, &query);
        match event::read().map_err(|e| e.to_string())? {
            Event::Key(key) => match key.code {
                KeyCode::Up | KeyCode::Char('k') => {
                    selected = selected.saturating_sub(1);
                }
                KeyCode::Down | KeyCode::Char('j') => {
                    selected = (selected + 1).min(visible.len().saturating_sub(1));
                }
                KeyCode::Enter => {
                    eprint!("\r\n");
                    if let Some(provider_idx) = visible.get(selected) {
                        return Ok(providers[*provider_idx]);
                    }
                }
                KeyCode::Esc => {
                    eprint!("\r\n");
                    return Err("Login canceled".to_string());
                }
                KeyCode::Backspace => {
                    query.pop();
                    selected = 0;
                }
                KeyCode::Char(c) if !c.is_control() => {
                    query.push(c);
                    selected = 0;
                }
                _ => {}
            },
            _ => {}
        }
    }
}

fn filtered_provider_indices(providers: &[LoginProvider], query: &str) -> Vec<usize> {
    let query = query.trim().to_lowercase();
    if query.is_empty() {
        return (0..providers.len()).collect();
    }

    providers
        .iter()
        .enumerate()
        .filter_map(|(idx, provider)| {
            let haystack = format!(
                "{} {} {}",
                provider.key(),
                provider.name,
                provider.description
            )
            .to_lowercase();
            haystack.contains(&query).then_some(idx)
        })
        .collect()
}

fn render_provider_picker(
    providers: &[LoginProvider],
    visible: &[usize],
    selected: usize,
    query: &str,
) {
    eprint!("\x1b[2J\x1b[H");
    eprint!("\r\n");
    for line in LOGIN_BANNER {
        eprint!("{}{}\r\n", LOGIN_PICKER_PADDING, line);
    }
    eprint!("\r\n");
    eprint!("{}┌ Add credential\r\n", LOGIN_PICKER_PADDING);
    eprint!("{}│\r\n", LOGIN_PICKER_PADDING);
    eprint!("{}◇ Select provider\r\n", LOGIN_PICKER_PADDING);
    eprint!("{}│\r\n", LOGIN_PICKER_PADDING);
    eprint!("{}│ Search: {}\r\n", LOGIN_PICKER_PADDING, query);
    if visible.is_empty() {
        eprint!(
            "{}│ \x1b[2mNo providers match your search.\x1b[0m\r\n",
            LOGIN_PICKER_PADDING
        );
    }
    for (row, provider_idx) in visible.iter().enumerate() {
        let provider = providers[*provider_idx];
        let marker = if row == selected { "●" } else { "○" };
        let suffix = if provider.recommended {
            " (recommended)"
        } else {
            ""
        };
        let auth = match provider.target {
            LoginTarget::OAuth(_) => "oauth",
            LoginTarget::Cloud(_) => "cloud broker",
            LoginTarget::Static(_) => "api key",
        };
        eprint!(
            "{}│ {} {}{} \x1b[2m{} · {}\x1b[0m\r\n",
            LOGIN_PICKER_PADDING, marker, provider.name, suffix, auth, provider.description
        );
    }
    eprint!("{}│\r\n", LOGIN_PICKER_PADDING);
    eprint!(
        "{}└ ↑/↓ to select • Enter: confirm • Type: search • Esc: cancel\r\n",
        LOGIN_PICKER_PADDING
    );
    let _ = io::stderr().flush();
}

struct RawModeGuard;

impl RawModeGuard {
    fn new() -> Result<Self, String> {
        enable_raw_mode().map_err(|e| e.to_string())?;
        Ok(Self)
    }
}

impl Drop for RawModeGuard {
    fn drop(&mut self) {
        let _ = disable_raw_mode();
    }
}

fn format_expiry(expires_millis: u64) -> String {
    let secs = expires_millis / 1000;
    let now = synaps_cli::epoch_secs();

    if secs <= now {
        return "expired".to_string();
    }

    let remaining = secs - now;
    let days = remaining / 86400;
    let hours = (remaining % 86400) / 3600;

    if days > 0 {
        format!("in {} days, {} hours", days, hours)
    } else if hours > 0 {
        format!("in {} hours", hours)
    } else {
        let mins = remaining / 60;
        format!("in {} minutes", mins)
    }
}

#[cfg(test)]
mod tests {
    use super::*;

    #[test]
    fn login_providers_include_all_typed_cloud_descriptors() {
        let providers = login_providers();
        for descriptor in auth::cloud::cloud_provider_descriptors() {
            let provider = find_provider(&providers, descriptor.id.as_str())
                .expect("cloud descriptor missing");
            assert_eq!(provider.target, LoginTarget::Cloud(descriptor.id));
            assert!(auth::cloud_login::supports_login(descriptor.id));
        }
    }

    #[test]
    fn relaunch_args_preserve_profile() {
        assert_eq!(
            main_app_args(Some("work".to_string())),
            vec!["--profile", "work"]
        );
    }

    #[test]
    fn relaunch_args_are_empty_without_profile() {
        assert!(main_app_args(None).is_empty());
    }

    #[test]
    fn relaunch_targets_prefer_path_synaps_then_current_exe() {
        let current = std::path::PathBuf::from("/tmp/synaps-current");
        let targets = main_app_launch_targets(Some(current.clone()));
        assert_eq!(targets, vec![std::path::PathBuf::from("synaps"), current]);
    }

    #[test]
    fn relaunch_targets_fallback_to_path_synaps_without_current_exe() {
        assert_eq!(
            main_app_launch_targets(None),
            vec![std::path::PathBuf::from("synaps")]
        );
    }

    #[test]
    fn should_prompt_to_open_main_app_only_for_interactive_success() {
        assert!(should_prompt_to_open_main_app(true));
        assert!(!should_prompt_to_open_main_app(false));
    }

    #[test]
    fn login_providers_include_claude_oauth_first() {
        let providers = login_providers();

        assert_eq!(providers[0].key(), "claude");
        assert_eq!(
            providers[0].target,
            LoginTarget::OAuth(auth::OAuthProviderId::Anthropic)
        );
        assert!(providers[0].recommended);
        // Non-recommended OAuth providers follow; HashMap registry order is not stable.
        assert!(
            providers.iter().any(|p| matches!(
                p.target,
                LoginTarget::OAuth(auth::OAuthProviderId::OpenAiCodex)
            )),
            "openai-codex must remain in the OAuth login list"
        );
        assert!(
            providers
                .iter()
                .any(|p| matches!(p.target, LoginTarget::OAuth(auth::OAuthProviderId::Xai))),
            "xai-auth must remain in the OAuth login list"
        );
    }

    #[test]
    fn login_providers_include_openai_compatible_api_key_entries() {
        let providers = login_providers();

        assert!(providers
            .iter()
            .any(|provider| provider.key() == "openrouter"
                && matches!(provider.target, LoginTarget::Static(_))));
        assert!(providers.iter().any(|provider| provider.key() == "google"
            && matches!(provider.target, LoginTarget::Static(_))));
    }

    #[test]
    fn non_interactive_provider_lookup_finds_openai_codex() {
        let providers = login_providers();
        let found = find_provider(&providers, "openai-codex");
        assert!(found.is_some());
        let p = found.unwrap();
        assert_eq!(p.key(), "openai-codex");
        assert_eq!(
            p.target,
            LoginTarget::OAuth(auth::OAuthProviderId::OpenAiCodex)
        );

        // case-insensitive
        assert!(find_provider(&providers, "OpenAI-Codex").is_some());

        // unknown key returns None
        assert!(find_provider(&providers, "totally-bogus-xyz").is_none());
    }

    #[test]
    fn banner_rows_always_fit_the_box() {
        let inner = |row: &str| row.chars().count() - 2;
        for (prefix, text) in [
            ("Sign in with ", "Meta Muse"),
            ("", "Meta account device OAuth for Muse Code (experimental)"),
            ("", "Google account OAuth for Gemini CLI / Code Assist (experimental)"),
            ("Account: ", "default"),
            ("", ""),
            ("", &"x".repeat(80)),
        ] {
            let rows = banner_lines(prefix, text);
            assert!(!rows.is_empty());
            for row in &rows {
                assert_eq!(inner(row), BANNER_INNER, "{row:?}");
                assert!(row.starts_with('║') && row.ends_with('║'), "{row:?}");
            }
            let joined: String = rows
                .iter()
                .map(|r| r.trim_matches('║').trim().trim_start_matches(prefix.trim()))
                .collect::<Vec<_>>()
                .join("");
            assert_eq!(
                joined.replace(' ', ""),
                text.replace(' ', ""),
                "no text is lost when wrapping"
            );
        }
        assert_eq!(
            banner_lines("Sign in with ", "Meta Muse"),
            ["║  Sign in with Meta Muse              ║"]
        );
    }

    #[test]
    fn login_providers_include_github_copilot_from_descriptor() {
        let providers = login_providers();
        let found = find_provider(&providers, "github-copilot")
            .expect("descriptor-driven login must surface github-copilot");
        assert_eq!(found.key(), "github-copilot");
        assert_eq!(
            found.target,
            LoginTarget::OAuth(auth::OAuthProviderId::GitHubCopilot)
        );
        assert_eq!(found.name, "GitHub Copilot");
        assert!(!found.recommended);
        // Storage key is canonical, not the claude-style alias rewrite.
        assert_eq!(oauth_storage_key(found), "github-copilot");
        // CLI aliases resolve through parse_cli_provider; picker key stays canonical.
        assert!(find_provider(&providers, "copilot").is_none());
        assert_eq!(
            auth::provider::parse_cli_provider("copilot")
                .unwrap()
                .as_str(),
            "github-copilot"
        );
    }

    #[test]
    fn login_providers_include_google_gemini_from_descriptor() {
        let providers = login_providers();
        let found = find_provider(&providers, "google-gemini")
            .expect("descriptor-driven login must surface google-gemini");
        assert_eq!(found.key(), "google-gemini");
        assert_eq!(
            found.target,
            LoginTarget::OAuth(auth::OAuthProviderId::GoogleGemini)
        );
        assert_eq!(found.name, "Google Gemini (Code Assist)");
        assert!(!found.recommended);
        // Storage key is canonical.
        assert_eq!(oauth_storage_key(found), "google-gemini");
        // The static Google AI Studio API-key entry stays reachable at "google".
        let ai_studio = find_provider(&providers, "google")
            .expect("Google AI Studio API-key entry must remain reachable");
        assert_eq!(
            ai_studio.target,
            LoginTarget::Static(StaticProviderId("google"))
        );
        // CLI aliases route to google-gemini except the reserved "google".
        assert_eq!(
            auth::provider::parse_cli_provider("gemini")
                .unwrap()
                .as_str(),
            "google-gemini"
        );
        assert!(auth::provider::parse_cli_provider("google").is_err());
    }

    #[test]
    fn login_providers_include_kimi_code_from_descriptor() {
        let providers = login_providers();
        let found = find_provider(&providers, "kimi-code")
            .expect("descriptor-driven login must surface kimi-code");
        assert_eq!(found.key(), "kimi-code");
        assert_eq!(
            found.target,
            LoginTarget::OAuth(auth::OAuthProviderId::KimiCode)
        );
        assert_eq!(found.name, "Kimi Code");
        assert!(!found.recommended);
        // Storage key is canonical.
        assert_eq!(oauth_storage_key(found), "kimi-code");
        // The static Moonshot API-key entry stays reachable at "kimi".
        let moonshot = find_provider(&providers, "kimi")
            .expect("Moonshot API-key entry must remain reachable");
        assert_eq!(
            moonshot.target,
            LoginTarget::Static(StaticProviderId("kimi"))
        );
        // CLI aliases route to kimi-code except the reserved "kimi".
        assert_eq!(
            auth::provider::parse_cli_provider("kimicode")
                .unwrap()
                .as_str(),
            "kimi-code"
        );
        assert!(auth::provider::parse_cli_provider("kimi").is_err());
    }
}