use std::{num::NonZeroUsize, path::PathBuf, str::FromStr, time::Duration};

use clap::Parser;
use driver_kasa::connection::LB130USHandle;
use futures::stream::{FuturesUnordered, StreamExt};
use home_assistant::{
    event::context::context::Context, home_assistant::HomeAssistant, light::HomeAssistantLight,
    notify::service::mobile_app::StandardNotification, object_id::ObjectId,
};
use persisted::{persisted, Config, Keyspace, Partition, PartitionCreateOptions};
use protocol::light::{IsOff, IsOn, Kelvin, TurnToTemperature};
use pyo3::prelude::*;
use shadow_rs::shadow;
use tokio::{
    task::{spawn_blocking, JoinSet},
    time::{interval, MissedTickBehavior},
};
use tracing::{level_filters::LevelFilter, Level};
use tracing_appender::rolling::{self, RollingFileAppender};
use tracing_subscriber::{
    fmt::{self, fmt, format::FmtSpan},
    layer::SubscriberExt,
    registry,
    util::SubscriberInitExt,
    Layer,
};
use tracing_to_home_assistant::TracingToHomeAssistant;

mod tracing_to_home_assistant;

shadow!(build_info);

#[derive(Debug, Parser)]
struct Args {
    #[arg(env)]
    persistence_directory: Option<PathBuf>,

    #[arg(env)]
    tracing_directory: Option<PathBuf>,
    #[arg(env, default_value = "")]
    tracing_file_name_prefix: String,
    #[arg(env, default_value = "log")]
    tracing_file_name_suffix: String,
    #[arg(env, default_value_t = 64)]
    tracing_max_log_files: usize,
}

async fn real_main(
    Args {
        persistence_directory,
        tracing_directory,
        tracing_file_name_prefix,
        tracing_file_name_suffix,
        tracing_max_log_files,
    }: Args,
    home_assistant: HomeAssistant,
) -> ! {
    let tracing_to_directory_res = tracing_directory
        .map(|tracing_directory| {
            tracing_appender::rolling::Builder::new()
                .filename_prefix(tracing_file_name_prefix)
                .filename_suffix(tracing_file_name_suffix)
                .max_log_files(tracing_max_log_files)
                .build(tracing_directory)
                .map(tracing_appender::non_blocking)
        })
        .transpose();

    let (tracing_to_directory, _guard, tracing_to_directory_initialization_error) =
        match tracing_to_directory_res {
            Ok(tracing_to_directory) => match tracing_to_directory {
                Some((tracing_to_directory, guard)) => {
                    (Some(tracing_to_directory), Some(guard), None)
                }
                None => (None, None, None),
            },
            Err(error) => (None, None, Some(error)),
        };

    registry()
        .with(
            fmt::layer()
                .pretty()
                .with_span_events(FmtSpan::ACTIVE)
                .with_filter(LevelFilter::from_level(Level::TRACE)),
        )
        .with(TracingToHomeAssistant)
        .with(tracing_to_directory.map(|writer| {
            fmt::layer()
                .pretty()
                .with_span_events(FmtSpan::ACTIVE)
                .with_writer(writer)
                .with_filter(LevelFilter::from_level(Level::TRACE))
        }))
        .init();

    if let Some(error) = tracing_to_directory_initialization_error {
        tracing::error!(?error, "cannot trace to directory");
    }

    let built_at = build_info::BUILD_TIME;
    tracing::info!(built_at);

    tokio::join!(
        async {
            let mut bathroom_mirror_lights = [
                LB130USHandle::new(
                    ([10, 0, 3, 80], 9999).into(),
                    Duration::from_secs(10),
                    (64).try_into().unwrap(),
                ),
                LB130USHandle::new(
                    ([10, 0, 3, 82], 9999).into(),
                    Duration::from_secs(10),
                    (64).try_into().unwrap(),
                ),
            ];

            let mut interval = interval(Duration::from_secs(15));
            interval.set_missed_tick_behavior(MissedTickBehavior::Delay);

            let mut temperature = Kelvin::MIN;

            loop {
                let instant = interval.tick().await;
                // temperature = temperature.wrapping_add(5173);
                tracing::info!(?temperature);

                let tasks = bathroom_mirror_lights
                    .iter_mut()
                    .map(|bathroom_mirror_light| {
                        bathroom_mirror_light.turn_to_temperature(temperature)
                    });
                let mut tasks = FuturesUnordered::from_iter(tasks);

                while let Some(result) = tasks.next().await {
                    match result {
                        Ok(()) => {}
                        Err(error_turning_to_temperature) => {
                            tracing::error!(?error_turning_to_temperature)
                        }
                    }
                }
            }
        },
        async {
            let jacob_phone_id = "galaxy_s21_ultra_1";
            let jacob_phone_object_id = ObjectId::from_str(jacob_phone_id).unwrap();
            
            let services = Python::attach(|py| home_assistant.services(py)).unwrap();

            let mut interval = interval(Duration::from_secs(15));
            interval.set_missed_tick_behavior(MissedTickBehavior::Delay);

            use home_assistant::notify::service::mobile_app::command;

            // loop {
            //     let instant = interval.tick().await;
            //     let context: Option<Context<()>> = None;
            //     let target: Option<()> = None;
            //     let turn_off_result: Result<Py<PyAny>, _> = services.call_service(command::DoNotDisturb {
            //         object_id: jacob_phone_object_id.clone(),
            //         filter: command::DoNotDisturbFilter::Off,
            //     }, context, target, false).await;
            //     dbg!(turn_off_result);
                
            //     let instant = interval.tick().await;
            //     let context: Option<Context<()>> = None;
            //     let target: Option<()> = None;
            //     let alarms_only_result: Result<Py<PyAny>, _> = services.call_service(command::DoNotDisturb {
            //         object_id: jacob_phone_object_id.clone(),
            //         filter: command::DoNotDisturbFilter::AlarmsOnly,
            //     }, context, target, false).await;
            //     dbg!(alarms_only_result);
                
            //     let instant = interval.tick().await;
            //     let context: Option<Context<()>> = None;
            //     let target: Option<()> = None;
            //     let priority_only_result: Result<Py<PyAny>, _> = services.call_service(command::DoNotDisturb {
            //         object_id: jacob_phone_object_id.clone(),
            //         filter: command::DoNotDisturbFilter::PriorityOnly,
            //     }, context, target, false).await;
            //     dbg!(priority_only_result);
                
            //     let instant = interval.tick().await;
            //     let context: Option<Context<()>> = None;
            //     let target: Option<()> = None;
            //     let total_silence_result: Result<Py<PyAny>, _> = services.call_service(command::DoNotDisturb {
            //         object_id: jacob_phone_object_id.clone(),
            //         filter: command::DoNotDisturbFilter::TotalSilence,
            //     }, context, target, false).await;
            //     dbg!(total_silence_result);
            // }
        }
    ).0
}

#[pyfunction]
fn main<'py>(py: Python<'py>, home_assistant: HomeAssistant) -> PyResult<Bound<'py, PyAny>> {
    let args = Args::parse();
    pyo3_async_runtimes::tokio::future_into_py::<_, ()>(py, async move {
        real_main(args, home_assistant).await;
    })
}

/// A Python module implemented in Rust.
#[pymodule]
fn smart_home_in_rust_with_home_assistant(module: &Bound<'_, PyModule>) -> PyResult<()> {
    module.add_function(wrap_pyfunction!(main, module)?)?;
    Ok(())
}