PicoBot/src/health.rs

558 lines
18 KiB
Rust

use std::collections::HashSet;
use std::path::Path;
use std::process::Stdio;
use std::time::Duration;
use serde::Serialize;
use tokio::process::Command;
use crate::config::{Config, McpTransport, expand_path};
pub const SUPPORTED_AGENT_BROWSER_VERSION: &str = "0.33.0";
#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize)]
#[serde(rename_all = "snake_case")]
pub enum HealthStatus {
Pass,
Warning,
Fail,
}
#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize)]
#[serde(rename_all = "snake_case")]
pub enum HealthOverall {
Healthy,
Degraded,
Unhealthy,
}
#[derive(Debug, Clone, Serialize)]
pub struct HealthCheck {
pub name: String,
pub category: String,
pub required: bool,
pub status: HealthStatus,
pub detail: String,
#[serde(skip_serializing_if = "Option::is_none")]
pub remediation: Option<String>,
}
#[derive(Debug, Clone, Serialize)]
pub struct HealthReport {
pub version: &'static str,
pub overall: HealthOverall,
pub checks: Vec<HealthCheck>,
}
impl HealthReport {
pub fn configuration_error(error: impl Into<String>) -> Self {
Self::from_checks(vec![HealthCheck {
name: "configuration".to_string(),
category: "core".to_string(),
required: true,
status: HealthStatus::Fail,
detail: error.into(),
remediation: Some(
"Fix ~/.picobot/config.json (or ./config.json) and run picobot health again."
.to_string(),
),
}])
}
fn from_checks(checks: Vec<HealthCheck>) -> Self {
let overall = if checks
.iter()
.any(|check| check.required && check.status == HealthStatus::Fail)
{
HealthOverall::Unhealthy
} else if checks
.iter()
.any(|check| check.status != HealthStatus::Pass)
{
HealthOverall::Degraded
} else {
HealthOverall::Healthy
};
Self {
version: env!("CARGO_PKG_VERSION"),
overall,
checks,
}
}
pub fn is_usable(&self) -> bool {
self.overall != HealthOverall::Unhealthy
}
pub fn render_text(&self) -> String {
let overall = match self.overall {
HealthOverall::Healthy => "HEALTHY",
HealthOverall::Degraded => "DEGRADED",
HealthOverall::Unhealthy => "UNHEALTHY",
};
let mut lines = vec![format!("PicoBot {} health: {overall}", self.version)];
for check in &self.checks {
let icon = match check.status {
HealthStatus::Pass => "",
HealthStatus::Warning => "!",
HealthStatus::Fail => "",
};
let requirement = if check.required {
"required"
} else {
"optional"
};
lines.push(format!(
"{icon} [{} / {requirement}] {}{}",
check.category, check.name, check.detail
));
if let Some(remediation) = &check.remediation {
lines.push(format!(" Fix: {remediation}"));
}
}
lines.join("\n")
}
}
#[derive(Clone)]
pub struct HealthService {
config: Config,
}
impl HealthService {
pub fn new(config: Config) -> Self {
Self { config }
}
pub async fn check(&self) -> HealthReport {
let mut checks = vec![
check_workspace(&self.config),
check_required_binary(
"bash",
"core",
"Install Bash and make it available on PATH.",
),
check_search_backend("content search", &["rg", "grep"], "rg"),
check_search_backend("file search", &["fd", "fdfind", "find"], "fd"),
check_optional_binary("systemd service management", "systemctl", "service"),
];
checks.extend(self.check_mcp_commands());
checks.extend(self.check_browser().await);
HealthReport::from_checks(checks)
}
fn check_mcp_commands(&self) -> Vec<HealthCheck> {
let mut seen = HashSet::new();
let mut checks = Vec::new();
for server in &self.config.mcp.servers {
if !matches!(server.transport, McpTransport::Stdio) {
continue;
}
let Some(command) = server.command.as_deref() else {
checks.push(HealthCheck {
name: format!("MCP server {}", server.name),
category: "configured".to_string(),
required: true,
status: HealthStatus::Fail,
detail: "stdio server has no command".to_string(),
remediation: Some("Set mcp.servers[].command.".to_string()),
});
continue;
};
if !seen.insert(command.to_string()) {
continue;
}
let installed = command_exists(command);
checks.push(HealthCheck {
name: format!("MCP command {command}"),
category: "configured".to_string(),
required: true,
status: if installed {
HealthStatus::Pass
} else {
HealthStatus::Fail
},
detail: if installed {
"installed".to_string()
} else {
"not found on PATH".to_string()
},
remediation: (!installed).then(|| {
format!("Install '{command}' or set an absolute mcp.servers[].command path.")
}),
});
}
if checks.is_empty() {
checks.push(HealthCheck {
name: "MCP stdio commands".to_string(),
category: "configured".to_string(),
required: false,
status: HealthStatus::Pass,
detail: "no stdio MCP servers configured".to_string(),
remediation: None,
});
}
checks
}
async fn check_browser(&self) -> Vec<HealthCheck> {
let browser = &self.config.browser;
if !browser.enabled {
return vec![HealthCheck {
name: "agent-browser".to_string(),
category: "configured".to_string(),
required: false,
status: HealthStatus::Pass,
detail: "browser tool disabled; dependency not required".to_string(),
remediation: None,
}];
}
let mut checks = Vec::new();
if !browser.allowed_domains.is_empty() {
checks.push(HealthCheck {
name: "persistent browser availability".to_string(),
category: "configured".to_string(),
required: false,
status: HealthStatus::Warning,
detail: "ordinary transient browsing is available, but persistent Chrome profiles are unavailable while allowed_domains is configured".to_string(),
remediation: Some(
"Keep allowed_domains for contained transient browsing, or clear it only if reusable persistent profiles are required; agent-browser 0.33.0 cannot combine both guarantees.".to_string(),
),
});
}
if !command_exists(&browser.command) {
checks.push(HealthCheck {
name: "agent-browser CLI".to_string(),
category: "configured".to_string(),
required: true,
status: HealthStatus::Fail,
detail: format!("'{}' was not found", browser.command),
remediation: Some(format!(
"Run `npm install -g agent-browser@{SUPPORTED_AGENT_BROWSER_VERSION}` (or `cargo install agent-browser --version {SUPPORTED_AGENT_BROWSER_VERSION} --locked`), then `agent-browser install`."
)),
});
return checks;
}
let version = command_output(
&browser.command,
&["--version"],
None,
Duration::from_secs(5),
)
.await;
match version {
Ok(version_output) => {
let version_number = extract_version(&version_output);
let exact = version_number.as_deref() == Some(SUPPORTED_AGENT_BROWSER_VERSION);
checks.push(HealthCheck {
name: "agent-browser CLI".to_string(),
category: "configured".to_string(),
required: true,
status: if exact {
HealthStatus::Pass
} else {
HealthStatus::Warning
},
detail: format!(
"installed version {}; PicoBot is validated with {}",
version_number.unwrap_or_else(|| version_output.trim().to_string()),
SUPPORTED_AGENT_BROWSER_VERSION
),
remediation: (!exact).then(|| {
format!(
"Install agent-browser@{SUPPORTED_AGENT_BROWSER_VERSION} for the validated CLI contract."
)
}),
});
}
Err(error) => checks.push(HealthCheck {
name: "agent-browser CLI".to_string(),
category: "configured".to_string(),
required: true,
status: HealthStatus::Fail,
detail: error,
remediation: Some("Reinstall agent-browser and verify it can execute.".to_string()),
}),
}
if let Some(path) = browser.browser_executable_path.as_deref() {
let path = expand_path(path);
let path = if path.is_absolute() {
path
} else {
expand_path(&self.config.workspace_dir).join(path)
};
let installed = path.is_file();
checks.push(HealthCheck {
name: "configured browser executable".to_string(),
category: "configured".to_string(),
required: true,
status: if installed {
HealthStatus::Pass
} else {
HealthStatus::Fail
},
detail: if installed {
format!("found at {}", path.display())
} else {
format!("not found at {}", path.display())
},
remediation: (!installed).then(|| {
"Fix browser.browser_executable_path or run `agent-browser install`."
.to_string()
}),
});
}
let doctor_executable = browser
.browser_executable_path
.as_deref()
.map(expand_path)
.map(|path| {
if path.is_absolute() {
path
} else {
expand_path(&self.config.workspace_dir).join(path)
}
})
.map(|path| path.to_string_lossy().into_owned());
let doctor_env = doctor_executable
.as_deref()
.map(|path| ("AGENT_BROWSER_EXECUTABLE_PATH", path));
let doctor = command_output(
&browser.command,
&["doctor", "--offline", "--quick", "--json"],
doctor_env,
Duration::from_secs(15),
)
.await;
checks.push(match doctor {
Ok(output) => HealthCheck {
name: "agent-browser runtime".to_string(),
category: "configured".to_string(),
required: true,
status: HealthStatus::Pass,
detail: summarize_output(&output),
remediation: None,
},
Err(error) => HealthCheck {
name: "agent-browser runtime".to_string(),
category: "configured".to_string(),
required: true,
status: HealthStatus::Fail,
detail: error,
remediation: Some(
"Run `agent-browser doctor`, then `agent-browser install --with-deps` on Linux or `agent-browser install` on other platforms."
.to_string(),
),
},
});
checks
}
}
fn check_workspace(config: &Config) -> HealthCheck {
let workspace = expand_path(&config.workspace_dir);
let exists = workspace.is_dir();
HealthCheck {
name: "workspace".to_string(),
category: "core".to_string(),
required: true,
status: if exists {
HealthStatus::Pass
} else {
HealthStatus::Fail
},
detail: if exists {
format!("{} is available", workspace.display())
} else {
format!("{} does not exist", workspace.display())
},
remediation: (!exists)
.then(|| "Create the configured workspace directory or fix workspace_dir.".to_string()),
}
}
fn check_required_binary(name: &str, category: &str, remediation: &str) -> HealthCheck {
let installed = command_exists(name);
HealthCheck {
name: name.to_string(),
category: category.to_string(),
required: true,
status: if installed {
HealthStatus::Pass
} else {
HealthStatus::Fail
},
detail: if installed {
"installed".to_string()
} else {
"not found on PATH".to_string()
},
remediation: (!installed).then(|| remediation.to_string()),
}
}
fn check_search_backend(name: &str, candidates: &[&str], preferred: &str) -> HealthCheck {
let found = candidates.iter().copied().find(|name| command_exists(name));
let (status, detail, remediation) = match found {
Some(found) if found == preferred => (
HealthStatus::Pass,
format!("using preferred backend {found}"),
None,
),
Some(found) => (
HealthStatus::Warning,
format!("using fallback backend {found}"),
Some(format!("Install {preferred} for faster searches.")),
),
None => (
HealthStatus::Fail,
"no supported backend found".to_string(),
Some(format!("Install one of: {}.", candidates.join(", "))),
),
};
HealthCheck {
name: name.to_string(),
category: "core".to_string(),
required: true,
status,
detail,
remediation,
}
}
fn check_optional_binary(name: &str, binary: &str, category: &str) -> HealthCheck {
let installed = command_exists(binary);
HealthCheck {
name: name.to_string(),
category: category.to_string(),
required: false,
status: HealthStatus::Pass,
detail: if installed {
format!("{binary} installed")
} else {
format!("{binary} not installed; feature remains unavailable")
},
remediation: None,
}
}
fn command_exists(command: &str) -> bool {
if command.contains(std::path::MAIN_SEPARATOR) {
Path::new(command).is_file()
} else {
which::which(command).is_ok()
}
}
async fn command_output(
command: &str,
args: &[&str],
env: Option<(&str, &str)>,
timeout: Duration,
) -> Result<String, String> {
let mut process = Command::new(command);
process
.args(args)
.stdin(Stdio::null())
.stdout(Stdio::piped())
.stderr(Stdio::piped())
.kill_on_drop(true);
if let Some((key, value)) = env {
process.env(key, value);
}
let output = tokio::time::timeout(timeout, process.output())
.await
.map_err(|_| format!("command timed out after {} seconds", timeout.as_secs()))?
.map_err(|error| format!("failed to start: {error}"))?;
let stdout = String::from_utf8_lossy(&output.stdout);
let stderr = String::from_utf8_lossy(&output.stderr);
if !output.status.success() {
let detail = if stderr.trim().is_empty() {
stdout.trim()
} else {
stderr.trim()
};
return Err(format!(
"exited with {}: {}",
output.status,
truncate(detail, 1_000)
));
}
let combined = if stdout.trim().is_empty() {
stderr.trim()
} else {
stdout.trim()
};
Ok(truncate(combined, 4_000))
}
fn extract_version(output: &str) -> Option<String> {
output
.split_whitespace()
.map(|token| {
token
.trim_start_matches('v')
.trim_matches(|c: char| c == ',' || c == ';')
})
.find(|token| {
let mut parts = token.split('.');
parts.clone().count() >= 3 && parts.all(|part| part.chars().all(|c| c.is_ascii_digit()))
})
.map(str::to_string)
}
fn summarize_output(output: &str) -> String {
if let Ok(json) = serde_json::from_str::<serde_json::Value>(output)
&& let Some(summary) = json
.get("summary")
.and_then(serde_json::Value::as_str)
.or_else(|| json.get("message").and_then(serde_json::Value::as_str))
{
return truncate(summary, 500);
}
let first_line = output
.lines()
.find(|line| !line.trim().is_empty())
.unwrap_or("ok");
truncate(first_line, 500)
}
fn truncate(value: &str, max: usize) -> String {
if value.len() <= max {
value.to_string()
} else {
format!("{}", &value[..value.floor_char_boundary(max)])
}
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn required_failure_makes_report_unhealthy() {
let report = HealthReport::from_checks(vec![HealthCheck {
name: "x".into(),
category: "core".into(),
required: true,
status: HealthStatus::Fail,
detail: "missing".into(),
remediation: None,
}]);
assert_eq!(report.overall, HealthOverall::Unhealthy);
assert!(!report.is_usable());
}
#[test]
fn extracts_agent_browser_version() {
assert_eq!(
extract_version("agent-browser 0.33.0"),
Some("0.33.0".to_string())
);
}
}