let health = PrismHealthMonitor()
await server.use(PrismHealthMiddleware(monitor: health))
// GET /health → {"status": "healthy", "checks": []}

let health = PrismHealthMonitor()

// Simple status check
await health.register("memory") {
    let info = ProcessInfo.processInfo
    return info.physicalMemory > 0 ? .healthy : .unhealthy
}

// Detailed check with messages
await health.register(PrismHealthCheck(name: "database") {
    do {
        try await db.execute("SELECT 1")
        return PrismHealthCheckResult(name: "database", status: .healthy, message: "Connected")
    } catch {
        return PrismHealthCheckResult(name: "database", status: .unhealthy, message: error.localizedDescription)
    }
})

await health.register(PrismHealthCheck(name: "disk") {
    let free = freeDiskSpace()
    if free < 100_000_000 {
        return PrismHealthCheckResult(name: "disk", status: .unhealthy, message: "Less than 100MB free")
    } else if free < 1_000_000_000 {
        return PrismHealthCheckResult(name: "disk", status: .degraded, message: "Less than 1GB free")
    }
    return PrismHealthCheckResult(name: "disk", status: .healthy)
})

await server.use(PrismHealthMiddleware(monitor: health))

{
    "status": "degraded",
    "checks": [
        {"name": "database", "status": "healthy", "message": "Connected"},
        {"name": "disk", "status": "degraded", "message": "Less than 1GB free"},
        {"name": "memory", "status": "healthy"}
    ]
}

await server.use(PrismHealthMiddleware(monitor: health, path: "/api/health"))
// Now at GET /api/health instead of /health

let report = await health.checkHealth()

if report.status == .unhealthy {
    print("Server is unhealthy!")
    for check in report.checks where check.status == .unhealthy {
        print("  Failed: \(check.name) — \(check.message ?? "unknown")")
    }
}