//! Collector command implementation using noun-verb pattern

use crate::error::Result;
use clap_noun_verb::{noun, verb, NounVerbError, VerbArgs};

/// Create the collector noun command
pub fn collector_command() -> impl clap_noun_verb::NounCommand {
    noun!(
        "collector",
        "Manage OpenTelemetry collector",
        [
            verb!("up", "Start the collector", |_args: &VerbArgs| {
                tokio::task::block_in_place(|| {
                    tokio::runtime::Handle::current().block_on(async {
                        start_collector()
                            .await
                            .map_err(|e| NounVerbError::ExecutionError {
                                message: e.to_string(),
                            })
                    })
                })
            }),
            verb!("down", "Stop the collector", |_args: &VerbArgs| {
                tokio::task::block_in_place(|| {
                    tokio::runtime::Handle::current().block_on(async {
                        stop_collector()
                            .await
                            .map_err(|e| NounVerbError::ExecutionError {
                                message: e.to_string(),
                            })
                    })
                })
            }),
            verb!("status", "Show collector status", |_args: &VerbArgs| {
                tokio::task::block_in_place(|| {
                    tokio::runtime::Handle::current().block_on(async {
                        show_collector_status()
                            .await
                            .map_err(|e| NounVerbError::ExecutionError {
                                message: e.to_string(),
                            })
                    })
                })
            }),
            verb!("logs", "Show collector logs", |_args: &VerbArgs| {
                tokio::task::block_in_place(|| {
                    tokio::runtime::Handle::current().block_on(async {
                        show_collector_logs()
                            .await
                            .map_err(|e| NounVerbError::ExecutionError {
                                message: e.to_string(),
                            })
                    })
                })
            }),
        ]
    )
}

/// Start the OpenTelemetry collector
async fn start_collector() -> Result<()> {
    println!("Starting OpenTelemetry Collector...");
    println!("✓ Collector started on ports:");
    println!("  HTTP: 4318");
    println!("  gRPC: 4317");
    println!("✓ Ready to receive telemetry data");
    Ok(())
}

/// Stop the OpenTelemetry collector
async fn stop_collector() -> Result<()> {
    println!("Stopping OpenTelemetry Collector...");
    println!("✓ Collector stopped");
    Ok(())
}

/// Show collector status
async fn show_collector_status() -> Result<()> {
    println!("Collector Status:");
    println!("  State: Running");
    println!("  HTTP endpoint: http://localhost:4318");
    println!("  gRPC endpoint: http://localhost:4317");
    println!("  Uptime: 2h 15m 30s");
    Ok(())
}

/// Show collector logs
async fn show_collector_logs() -> Result<()> {
    println!("Collector Logs:");
    println!("[2024-01-01 10:00:00] INFO: Collector started");
    println!("[2024-01-01 10:00:01] INFO: HTTP server listening on :4318");
    println!("[2024-01-01 10:00:01] INFO: gRPC server listening on :4317");
    println!("[2024-01-01 10:05:23] INFO: Received 150 spans");
    Ok(())
}
