// use std::sync::atomic::{AtomicUsize, Ordering};
use app_env::{
  AppStore,
  appenv::AppEnv,
  appinfo::AppInfo,
  appdata::AppData,
  config::{Config,WebServer}
};
use clds::clouds::{
	monitor_rules::{MonitorRules},
};
use clds::monitor::run_monitor;

use app_auth::AuthStore;
use reject_filters::{handle_rejection};
// use zterton::models::{Terton};
//use std::fs; //, io};
// use std::fs::OpenOptions;
// use std::io::Write;
//use std::path::Path;
// use serde_yaml::Value;
use anyhow::{Result};
// use std::env;
//use warp::{http::Response as HttpResponse, Filter, filters::BoxedFilter};
use warp::{
  // http::{StatusCode},
  http::{method::Method, HeaderMap},
  Filter,
};
// use warp::filters::header::headers_cloned;
// use warp::path::FullPath;
// use warp::http::{Uri, HeaderMap, HeaderValue};

//use crate::utils::set_ta_data;
use crate::defs::{DataDBs,CollsData,load_cloud_env};
use clds::clouds::defs::{
  Cloud,
};
// use clds::app_env::config::Config;
use clds::clouds::on_clouds::{make_cloud_cache,run_clouds_check};
use reqenv::ReqEnv;

// #[macro_use]
// extern crate kloud_entries_macro_derive;

// static WEBSERVER: AtomicUsize = AtomicUsize::new(0);
const PKG_VERSION: &'static str = env!("CARGO_PKG_VERSION");
// const PKG_VERSION: Option<&'static str> = option_env!("CARGO_PKG_VERSION");
const PKG_NAME: &'static str = env!("CARGO_PKG_NAME");
const PKG_AUTHORS: &'static str = env!("CARGO_PKG_AUTHORS");
const PKG_DESCRIPTION: &'static str = env!("CARGO_PKG_DESCRIPTION");

pub mod defs;
pub mod graphql;
pub mod filters;
pub mod handlers;

// pub const MODEL_PATH: &String = String::from("./auth/auth_model.conf");
// pub const POLICY_PATH: &String = String::from("./auth/policy.csv");

async fn create_auth_store(app_env: &AppEnv,verbose: &str) -> AuthStore {
	let config = app_env.get_curr_websrvr_config();
	let model_path = config.st_auth_model_path();
  let policy_path = config.st_auth_policy_path();
  AuthStore::new(&config,AuthStore::create_enforcer(model_path,policy_path).await,&verbose)
}
async fn up_web_server(webpos: usize) -> Result<()> {
	let mut app_env = AppEnv::default();
	app_env.curr_web=webpos;
	println!("Web services: init {} ___________ ", chrono::Utc::now().timestamp());
	app_env.info = AppInfo::new(
		"ZTerton",
		format!("web: {}",&webpos),
		format!("version: {}",PKG_VERSION),
		format!("authors: {}",PKG_AUTHORS),
		format!("{}",PKG_DESCRIPTION),
	);
	zterton::init_app(&mut app_env,"").await.unwrap_or_else(|e| 
		panic!("Error loadding app environment {}",e)
	);
	let config = app_env.get_curr_websrvr_config();
	// let webserver_status = WEBSERVER.load(Ordering::Relaxed);
	let zterton_env = envmnt::get_or(format!("ZTERTON_{}",&config.name).as_str(), "UNKNOWN");
	let verbose = envmnt::get_or("WEB_SERVER_VERBOSE", "");
	// if webserver_status != 0 {
	if zterton_env != "UNKNOWN" {
		if verbose != "quiet" {
			println!("ZTerton web services at {}",&zterton_env);
		}
	  // envmnt::set("ZTERTON", "WEBSERVER");
		return Ok(());
		/*
 	 let app = Zterton::new(
    app_env.config.srv_protocol.to_owned(),
    app_env.config.srv_host.to_owned(),
    app_env.config.srv_port,
 	 );
		let serverstring = format!("{}:{}",&srv_host,&srv_port);
		match std::net::TcpStream::connect(&serverstring) {
			Ok(_serverstream) => {
				Ok(())
				Err(anyhow!("Source {}: Connection to '{}' for tsksrvc '{}' failed: {}",&source,&serverstring,&tsk_name,&e))
			}, 
			Err(e) => {
				// handle_input(serverstream);
			}
		}
		*/
	}
	// WEBSERVER.store(1,Ordering::Relaxed);

  // TODO pass root file-name frmt from AppEnv Config 
  // if init at load 
  //  set_ta_data(&app_env).await?;
	println!("Loading webserver: {} ({})",&config.name,&app_env.curr_web);

  let (app, socket) = zterton::start_web(&mut app_env).await;

  println!("Load app store ...");
  let app_store = AppStore::new(AppData::new(app_env.to_owned()));
  
  // As static casbin
  println!("Load auth store ...");
	let auth_store = create_auth_store(&app_env,"").await;
  // dbg!(&auth_store.users.read().await);
  // dbg!(&auth_store.shadows.read().await);

  println!("Load data store ...");

  let data_dbs = DataDBs {
    colls: CollsData::new(app_env.to_owned()),
    app: app_store.to_owned(),
    auth: auth_store.to_owned(),
  };
  println!("Load web filters ...");
  //  let store = warp::any().map(move || ta_store.clone());
  //let routes = warp::any().map(|| "Hello, World!");

  // let us get some static boxes from config values: 
  let log_name = app_env.config.st_log_name();
  // Path for static files 
  let html_path = config.st_html_path();
  // If not graphQL comment/remove next line 
  let gql_path = config.st_gql_req_path();
  // If not graphiQL comment/remove next line Interface GiQL
  let giql_path = config.st_giql_req_path();

  let origins: Vec<&str> = config.allow_origin.iter().map(AsRef::as_ref).collect();
  let cors = warp::cors()
    //.allow_any_origin()
    .allow_origins(origins)
    //.allow_origins(vec![app_env.config.allow_origin.as_str(), "https://localhost:8000"])
    .allow_credentials(true)
    .allow_header("content-type")
    .allow_header("Authorization")
    .allow_methods(&[Method::GET, Method::POST, Method::DELETE]);

  let auth_api = 
  // Auth routes for login & logout  REQUIRED
  app_auth_filters::auth(app_store.clone(),auth_store.clone(),cors.clone()); // .with(cors.clone());
  
  let gqli_api = 
  // // If not graphiQL comment/remove next line Interface GiQL MUST BEFORE graphql post with schema
  // app_api.to_owned()
  graphql::graphiql(gql_path, giql_path, data_dbs.clone()).await;
  if giql_path.len() > 0 {
    println!(
     "GraphiQL url: {}://{}:{}/{}",
     &app.protocol, &app.host, &app.port, &giql_path
    );
  } 
	let mut cloud = Cloud::default();
	load_cloud_env(&mut cloud).await;
  // app_api.to_owned()
  // If not graphQL comment/remove next line 
  let gql_api=graphql::graphql(gql_path, data_dbs.clone(),cors.clone()).await; //.with(cors.clone());

  // // Add ALL ENTITIES to work with here
  let kloud_api = filters::CollFilters::new("kloud")
		.filters_config(data_dbs.clone(),cloud.clone(),cors.clone());

  // let ta_api =
  // filters::CollFilters::new("ta").filters(&config, data_dbs.clone(),cors.clone());

// let tp_api = filters::CollFilters::new("tp").filters(&config, data_dbs.clone(),cors.clone());
//  .or(tracking_point::load_tp_filters().filters(&config, data_dbs.clone()))
//   .or(topographic_anatomy::filters::ta(&config, data_dbs.clone()))
//   .or(tracking_point::filters::tp(&config, data_dbs.clone()))

   let file_api = app_file_filters::files(app_store.clone(),auth_store.clone()).with(cors.clone());
  // Path for static files, better to be LAST
   let fs_api = warp::fs::dir(html_path).with(warp::compression::gzip());
  // Recover and handle errors 
  let app_api = auth_api
    .or(gqli_api).or(gql_api)
    .or(kloud_api)
    // .or(ta_api)
    // .or(tp_api)
    .or(file_api)
    .or(fs_api)
    .recover(move | error: warp::Rejection| handle_rejection(error, app_store.clone()))
    .boxed();
  // Wrap routes with log to get info
  let routes =  app_api.with(warp::log(log_name));
//   let routes = app_api.with(cors).with(warp::log(log_name));

  println!(
    "Starting http server: {}://{}:{}",
    &app.protocol, &app.host, &app.port
  );
	envmnt::set("ZTERTON", format!("{}:{}",&app.host,&app.port));
  println!("Web services: done {} __________ ",chrono::Utc::now().timestamp());
	if app.protocol.clone().as_str() == "http" {
		warp::serve(routes.to_owned())
			.run(socket)
			.await;
	} else {
		let cert_pem = format!("{}/ssl/{}", &config.resources_path, "cert.pem");
		let key_pem = format!("{}/ssl/{}", &config.resources_path, "key.pem");
		warp::serve(routes)
			.tls()
			.cert_path(cert_pem)
			.key_path(key_pem)
			.run(socket)
			.await;
	}
	Ok(())
}
pub async fn run_cache_clouds() {
	let args: Vec<String> = std::env::args().collect();
	let mut arg_cfg_path = String::from("");
	let mut arg_env_path = String::from("");
	args.iter().enumerate().for_each(|(idx,arg)| {
		if arg == "-c" { 
			arg_cfg_path=args[idx+1].to_owned();
		} else if arg == "-e" { 
			arg_env_path=args[idx+1].to_owned();
		}
  });
  println!("Cache service on Clouds: run {} __________ {} / {} ",chrono::Utc::now().timestamp(),&arg_cfg_path,&arg_env_path);
	let mut cloud = Cloud::default();
	load_cloud_env(&mut cloud).await;	
	let mut app_env = AppEnv::default();
	let config_content = Config::load_file_content("quiet", &arg_cfg_path);
  if ! config_content.contains("run_mode") {
		return;
	}
	app_env.config = Config::new(config_content,"quiet");
  let app_store = AppStore::new(AppData::new(app_env.to_owned()));
  let auth_store = create_auth_store(&app_env,"quiet").await;

	let mut headers = HeaderMap::new();
  headers.insert(http::header::HOST, "localhost".parse().unwrap());
	let reqenv = ReqEnv::new( 
		app_store, auth_store,
		headers,
	  Method::GET,
		"/config", "config", "kloud"
	);
	let _ = make_cloud_cache(&reqenv,&cloud).await;
  println!("Cache service on Clouds: done {} __________ ",chrono::Utc::now().timestamp());
}

pub async fn run_check_clouds() {
	let args: Vec<String> = std::env::args().collect();
	let mut arg_cfg_path = String::from("");
	let mut arg_env_path = String::from("");
	args.iter().enumerate().for_each(|(idx,arg)| {
		if arg == "-c" { 
			arg_cfg_path=args[idx+1].to_owned();
		} else if arg == "-e" { 
			arg_env_path=args[idx+1].to_owned();
		}
  });
  println!("Check Cloud services: run {} __________ {} / {} ",chrono::Utc::now().timestamp(),&arg_cfg_path,&arg_env_path);
	let mut cloud = Cloud::default();
	load_cloud_env(&mut cloud).await;	
	let mut app_env = AppEnv::default();
	let config_content = Config::load_file_content("quiet",&arg_cfg_path);
  if ! config_content.contains("run_mode") {
		return;
	}
	app_env.config = Config::new(config_content,"quiet");
  let app_store = AppStore::new(AppData::new(app_env.to_owned()));
  let auth_store = create_auth_store(&app_env,"quiet").await;

	let mut headers = HeaderMap::new();
  headers.insert(http::header::HOST, "localhost".parse().unwrap());
	let reqenv = ReqEnv::new( 
		app_store, auth_store,
		headers,
	  Method::GET,
		"/config", "config", "kloud"
	);
	let _ = run_clouds_check(&reqenv,&cloud).await;
  println!("Check Cloud service: done {} __________ ",chrono::Utc::now().timestamp());
}
pub async fn run_clouds_monitor() {
	let args: Vec<String> = std::env::args().collect();
	let mut arg_cfg_path = String::from("");
	let mut arg_env_path = String::from("");
	args.iter().enumerate().for_each(|(idx,arg)| {
		if arg == "-c" { 
			arg_cfg_path=args[idx+1].to_owned();
		} else if arg == "-e" { 
			arg_env_path=args[idx+1].to_owned();
		}
  });
  println!("Monitor Cloud: run {} __________ {} / {} ",chrono::Utc::now().timestamp(),&arg_cfg_path,&arg_env_path);
	let mut cloud = Cloud::default();
	load_cloud_env(&mut cloud).await;	
	let mut app_env = AppEnv::default();
	let config_content = Config::load_file_content("quiet",&arg_cfg_path);
  if ! config_content.contains("run_mode") {
		return;
	}
	app_env.config = Config::new(config_content,"quiet");

  let monitor_rules = MonitorRules::load(&app_env.config.monitor_rules_path,&app_env.config.monitor_rules_file,&app_env.config.monitor_rules_format);
	// monitor_rules.rules[0].context = RuleContext::Service(String::from("kubernetes")); 
	if monitor_rules.rules.len() > 0 {
	  let _ = run_monitor(monitor_rules,cloud,app_env).await;
	}
  println!("Monitor Cloud: done {} __________ ",chrono::Utc::now().timestamp());
}
// for standalone server & async use 
// #[tokio::main] 
// pub async fn main() -> Result<()> {

pub fn main() -> Result<()> {
	let args: Vec<String> = std::env::args().collect();
	// println!("I got {:?} arguments: {:?}.", args.len() - 1, &args[1..]);
	if args.len() > 1 {
		match args[1].as_str() {
			"-h" | "--help" => 
	  		println!("{} USAGE: -c config-toml -e env.file",PKG_NAME),
			"-v" | "--version" => {
	  		println!("{} version: {}",PKG_NAME,PKG_VERSION);
				return Ok(());
				},
			_ => println!("{}",PKG_NAME),
		}
	}
	let mut arg_cfg_path = String::from("");
	let mut arg_env_path = String::from("");
	args.iter().enumerate().for_each(|(idx,arg)| {
		if arg == "-c" { 
			arg_cfg_path=args[idx+1].to_owned();
		} else if arg == "-e" { 
			arg_env_path=args[idx+1].to_owned();
		}
  });
	if !arg_env_path.is_empty() {
		let env_path = std::path::Path::new(&arg_env_path);
		dotenv::from_path(env_path)?;
	}
	pretty_env_logger::init();
//	assert!(output.is_ok());
	let loop_duration: u64;
	let run_websrvrs: bool;
	let run_cache: bool;
	let run_check: bool;
	let run_monitor: bool;
	let websrvrs: Vec<WebServer>;
	{
		let config_content = Config::load_file_content("quiet", &arg_cfg_path);
		if config_content.contains("run_mode") {
			let config = Config::new(config_content,"quiet");
			loop_duration = config.loop_duration;
			// 	loop_duration = 10;
			run_websrvrs = config.run_websrvrs;
			run_cache = config.run_cache;
			run_check = config.run_check;
			run_monitor = config.run_monitor;
			websrvrs = config.websrvrs;
			if run_cache {
			  println!("Running 'cloud_cache' every {} seconds in LOOP",&loop_duration);
		  }
			if run_check {
			  println!("Running 'cloud_check' every {} seconds in LOOP",&loop_duration);
			}
		} else {
			loop_duration = 0;
			run_websrvrs = false;
			run_cache = false;
			run_check = false;
			run_monitor = false;
			websrvrs = Vec::new();
		}
	}
	
  // println!("content: {}",&config_content);
	let rt = tokio::runtime::Runtime::new().unwrap_or_else(|e| 
		panic!("Error create tokio runtime {}",e)
  );
	if run_websrvrs {
		websrvrs.iter().enumerate().for_each(|(pos,it)| {
			rt.block_on(async move {
				println!("{} -> {}",it.name,pos);
				tokio::spawn(async move {up_web_server(pos).await});
				tokio::time::sleep(tokio::time::Duration::from_secs(5)).await;
			});
		});
	}
	loop {
		rt.block_on(async move {
			if run_monitor {
				tokio::spawn(async {run_clouds_monitor().await }); // For async task
			}
			if run_check {
			  tokio::spawn(async {run_check_clouds().await }); // For async task
			  tokio::time::sleep(tokio::time::Duration::from_secs(5)).await;
			}
			// {
			// // For blocking task:
			//     let join_handle = tokio::task::spawn_blocking(|| do_my_task());
			// tokio::spawn(async { do_my_task().await; }); 
			//     join_handle.await; // TODO: should handle error here
			// }
			if run_cache {
			  tokio::spawn(async {run_cache_clouds().await }); // For async task
			}
			println!("LOOP: {} __________",chrono::Utc::now().timestamp());
			tokio::time::sleep(tokio::time::Duration::from_secs(loop_duration)).await;
		});
	}
}