use anyhow::Result;
use clap::Parser;

mod cli;
mod config;
mod docker;
mod doctor;
mod health;
mod ssh;
mod tmux;

use crate::cli::{Cli, Commands};
use crate::config::{Cluster, Config, resolve_cluster_for_recipe, select_cluster_by_name};
use crate::ssh::fetch_host_key;

#[tokio::main]
async fn main() -> Result<()> {
    tracing_subscriber::fmt::init();
    let cli = Cli::parse();

    let raw_config = tokio::fs::read_to_string(&cli.config).await?;
    let config: Config = toml::from_str(&raw_config)?;
    let dry_run = cli.dry_run;

    match cli.command {
        Commands::Serve {
            recipe,
            cluster,
            keep,
        } => {
            docker::serve(&config, &recipe, &cluster, keep, dry_run).await?;
        }
        Commands::Logs {
            recipe: recipe_name,
            follow,
        } => {
            let (cluster, _recipe) = resolve_cluster_for_recipe(&config, &recipe_name).await?;
            docker::show_logs(&config, &cluster, &recipe_name, follow, dry_run).await?;
        }
        Commands::Stop {
            recipe: recipe_name,
        } => {
            let (cluster, _recipe) = resolve_cluster_for_recipe(&config, &recipe_name).await?;
            docker::stop_cluster(&config, &cluster, &recipe_name, dry_run).await?;
        }
        Commands::Health {
            cluster: cluster_name,
            fingerprint,
        } => {
            if fingerprint {
                let clusters_to_check: Vec<Cluster> = match &cluster_name {
                    Some(name) => vec![select_cluster_by_name(&config, name)?],
                    None => config.clusters.clone(),
                };
                for cluster in &clusters_to_check {
                    println!("\n=== Кластер: {} ===", cluster.name);
                    for node in &cluster.nodes {
                        match fetch_host_key(&config, node).await {
                            Ok(fp) => {
                                println!("{} ({}) -> host_key = \"{}\"", node.name, node.ssh_ip, fp)
                            }
                            Err(e) => println!("{} ({}) -> error: {}", node.name, node.ssh_ip, e),
                        }
                    }
                }
            } else {
                match cluster_name {
                    Some(ref name) => {
                        let cluster = select_cluster_by_name(&config, name)?;
                        docker::health_check(&config, &cluster, dry_run).await?;
                    }
                    None => {
                        for cluster in &config.clusters {
                            docker::health_check(&config, cluster, dry_run).await?;
                        }
                    }
                }
            }
        }
        Commands::Doctor {
            recipe,
            cluster,
            repair,
        } => {
            doctor::doctor(&config, &recipe, &cluster, repair, dry_run).await?;
        }
        Commands::Tmux(tmux_cmd) => {
            crate::tmux::handle_tmux(&config, tmux_cmd, dry_run).await?;
        }
    }

    Ok(())
}