use crate::char_grid::CharGrid;
use servicepoint::{DataRef, Grid};
use std::sync::{Arc, RwLock};

#[derive(uniffi::Object)]
pub struct Cp437Grid {
    pub(crate) actual: RwLock<servicepoint::Cp437Grid>,
}

impl Cp437Grid {
    pub(crate) fn internal_new(actual: servicepoint::Cp437Grid) -> Arc<Self> {
        Arc::new(Self {
            actual: RwLock::new(actual),
        })
    }
}

#[uniffi::export]
impl Cp437Grid {
    #[uniffi::constructor]
    pub fn new(width: u64, height: u64) -> Arc<Self> {
        Self::internal_new(servicepoint::Cp437Grid::new(
            width as usize,
            height as usize,
        ))
    }

    #[uniffi::constructor]
    pub fn load(width: u64, height: u64, data: Vec<u8>) -> Arc<Self> {
        Self::internal_new(servicepoint::Cp437Grid::load(
            width as usize,
            height as usize,
            &data,
        ))
    }

    #[uniffi::constructor]
    pub fn clone(other: &Arc<Self>) -> Arc<Self> {
        Self::internal_new(other.actual.read().unwrap().clone())
    }

    pub fn set(&self, x: u64, y: u64, value: u8) {
        self.actual
            .write()
            .unwrap()
            .set(x as usize, y as usize, value)
    }

    pub fn get(&self, x: u64, y: u64) -> u8 {
        self.actual.read().unwrap().get(x as usize, y as usize)
    }

    pub fn fill(&self, value: u8) {
        self.actual.write().unwrap().fill(value)
    }
    pub fn width(&self) -> u64 {
        self.actual.read().unwrap().width() as u64
    }

    pub fn height(&self) -> u64 {
        self.actual.read().unwrap().height() as u64
    }

    pub fn equals(&self, other: &Cp437Grid) -> bool {
        let a = self.actual.read().unwrap();
        let b = other.actual.read().unwrap();
        *a == *b
    }

    pub fn copy_raw(&self) -> Vec<u8> {
        self.actual.read().unwrap().data_ref().to_vec()
    }

    pub fn to_utf8(&self) -> Arc<CharGrid> {
        CharGrid::internal_new(servicepoint::CharGrid::from(
            &*self.actual.read().unwrap(),
        ))
    }
}