use super::u8_to_bool;
use crate::constants::{RevLights, Surface};

use binrw::BinRead;
use serde::{Deserialize, Serialize};

#[non_exhaustive]
#[derive(
    BinRead, PartialEq, PartialOrd, Copy, Clone, Debug, Serialize, Deserialize,
)]
#[br(
    little,
    import(_packet_format: u16),
    assert(
        (0.0..=1.0).contains(&throttle),
        "Car telemetry entry has an invalid throttle value: {}",
        throttle
    ),
    assert(
        (-1.0..=1.0).contains(&steer),
        "Car telemetry entry has an invalid steering lock value: {}",
        steer
    ),
    assert(
        (0.0..=1.0).contains(&brake),
        "Car telemetry entry has an invalid brake value: {}",
        brake
    ),
    assert(
        clutch <= 100,
        "Car telemetry entry has an invalid clutch value: {}",
        clutch
    ),
    assert(
        (-1..=8).contains(&gear),
        "Car telemetry entry has an invalid gear value: {}",
        gear
    ),
    assert(
        rev_lights_percent <= 100,
        "Car telemetry entry has an invalid rev lights percentage: {}",
        rev_lights_percent
    ),
)]
pub struct CarTelemetryData {
    /// Speed of the car in kilometres per hour.
    pub speed: u16,
    /// Amount of throttle applied. Value in range `(0.0..=1.0)`.
    pub throttle: f32,
    /// Steering lock. Value in range `(-1.0..=1.0)`.
    pub steer: f32,
    /// Amount of brake applied. Value in range `(0.0..=1.0)`.
    pub brake: f32,
    /// Amount of clutch applied (percentage).
    pub clutch: u8,
    /// Selected gear. Neutral = 0, reverse = -1.
    pub gear: i8,
    /// Engine RPM.
    pub engine_rpm: u16,
    /// Whether DRS is enabled.
    #[br(map(u8_to_bool))]
    pub drs_enabled: bool,
    /// Rev lights indicator (percentage).
    pub rev_lights_percent: u8,
    /// Bitmap of active rev lights.
    #[br(map(|bits: u16| RevLights::from_bits_truncate(bits)))]
    pub rev_lights_bit_value: RevLights,
    /// Brake temperatures in degrees Celsius.
    /// See [`wheel_index`](mod@crate::constants::wheel_index)
    /// for wheel order.
    pub brakes_temperature: [u16; 4],
    /// Tyres' surface temperature in degrees Celsius.
    /// See [`wheel_index`](mod@crate::constants::wheel_index)
    /// for wheel order.
    pub tyres_surface_temperature: [u8; 4],
    /// Tyres' inner temperature in degrees Celsius.
    /// See [`wheel_index`](mod@crate::constants::wheel_index)
    /// for wheel order.
    pub tyres_inner_temperature: [u8; 4],
    /// Engine's temperature in degrees Celsius
    pub engine_temperature: u16,
    /// Tyres' pressue temperature in degrees Celsius.
    /// See [`wheel_index`](mod@crate::constants::wheel_index)
    /// for wheel order.
    pub tyres_pressure: [f32; 4],
    /// Driving surface of each tyre.
    /// See [`wheel_index`](mod@crate::constants::wheel_index)
    /// for wheel order.
    pub surface_type: Option<[Surface; 4]>,
}