use crate::errors::ShellError;
use crate::object::base::OF64;
use crate::object::Dictionary;
use crate::object::{Primitive, Value};
use crate::prelude::*;
use sys_info::*;

pub fn sysinfo(_args: CommandArgs) -> Result<OutputStream, ShellError> {
    let mut idx = indexmap::IndexMap::new();

    if let (Ok(name), Ok(version)) = (os_type(), os_release()) {
        let mut os_idx = indexmap::IndexMap::new();
        os_idx.insert(
            "name".to_string(),
            Value::Primitive(Primitive::String(name)),
        );
        os_idx.insert(
            "version".to_string(),
            Value::Primitive(Primitive::String(version)),
        );

        idx.insert("os".to_string(), Value::Object(Dictionary::from(os_idx)));
    }

    if let (Ok(num_cpu), Ok(cpu_speed)) = (cpu_num(), cpu_speed()) {
        let mut cpu_idx = indexmap::IndexMap::new();
        cpu_idx.insert(
            "num".to_string(),
            Value::Primitive(Primitive::Int(num_cpu as i64)),
        );
        cpu_idx.insert(
            "speed".to_string(),
            Value::Primitive(Primitive::Int(cpu_speed as i64)),
        );

        idx.insert("cpu".to_string(), Value::Object(Dictionary::from(cpu_idx)));
    }

    if let Ok(x) = loadavg() {
        let mut load_idx = indexmap::IndexMap::new();
        load_idx.insert(
            "1min".to_string(),
            Value::Primitive(Primitive::Float(OF64::from(x.one))),
        );
        load_idx.insert(
            "5min".to_string(),
            Value::Primitive(Primitive::Float(OF64::from(x.five))),
        );
        load_idx.insert(
            "15min".to_string(),
            Value::Primitive(Primitive::Float(OF64::from(x.fifteen))),
        );

        idx.insert(
            "load avg".to_string(),
            Value::Object(Dictionary::from(load_idx)),
        );
    }

    if let Ok(x) = mem_info() {
        let mut mem_idx = indexmap::IndexMap::new();
        mem_idx.insert(
            "total".to_string(),
            Value::Primitive(Primitive::Bytes(x.total as u128 * 1024)),
        );
        mem_idx.insert(
            "free".to_string(),
            Value::Primitive(Primitive::Bytes(x.free as u128 * 1024)),
        );
        mem_idx.insert(
            "avail".to_string(),
            Value::Primitive(Primitive::Bytes(x.avail as u128 * 1024)),
        );
        mem_idx.insert(
            "buffers".to_string(),
            Value::Primitive(Primitive::Bytes(x.buffers as u128 * 1024)),
        );
        mem_idx.insert(
            "cached".to_string(),
            Value::Primitive(Primitive::Bytes(x.cached as u128 * 1024)),
        );
        mem_idx.insert(
            "swap total".to_string(),
            Value::Primitive(Primitive::Bytes(x.swap_total as u128 * 1024)),
        );
        mem_idx.insert(
            "swap free".to_string(),
            Value::Primitive(Primitive::Bytes(x.swap_free as u128 * 1024)),
        );

        idx.insert("mem".to_string(), Value::Object(Dictionary::from(mem_idx)));
    }

    if let Ok(x) = disk_info() {
        let mut disk_idx = indexmap::IndexMap::new();
        disk_idx.insert(
            "total".to_string(),
            Value::Primitive(Primitive::Bytes(x.total as u128 * 1024)),
        );
        disk_idx.insert(
            "free".to_string(),
            Value::Primitive(Primitive::Bytes(x.free as u128 * 1024)),
        );
    }

    if let Ok(x) = hostname() {
        idx.insert(
            "hostname".to_string(),
            Value::Primitive(Primitive::String(x)),
        );
    }

    #[cfg(not(windows))]
    {
        if let Ok(x) = boottime() {
            let mut boottime_idx = indexmap::IndexMap::new();
            boottime_idx.insert(
                "days".to_string(),
                Value::Primitive(Primitive::Int(x.tv_sec / (24 * 3600))),
            );
            boottime_idx.insert(
                "hours".to_string(),
                Value::Primitive(Primitive::Int((x.tv_sec / 3600) % 24)),
            );
            boottime_idx.insert(
                "mins".to_string(),
                Value::Primitive(Primitive::Int((x.tv_sec / 60) % 60)),
            );

            idx.insert(
                "uptime".to_string(),
                Value::Object(Dictionary::from(boottime_idx)),
            );
        }
    }

    let mut stream = VecDeque::new();
    stream.push_back(ReturnValue::Value(Value::Object(Dictionary::from(idx))));

    Ok(stream.boxed())
}