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#![warn(missing_docs)]
//! # Example
//! ```rust
//! use fast_qr::{ECL, Version, QRBuilder};
//!
//! let qrcode = QRBuilder::new("https://example.com/".into())
//!     .ecl(ECL::H)
//!     .version(Version::V03)
//!     .build();
//! // It is preferable to check qrcode result before
//! qrcode.unwrap().print();
//! ```
//!
//! <svg viewBox='0 0 37 37' xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" width="148px">
//!  <path 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/>
//! </svg>
//!
//! # Example SVG
//! ```rust
//! use fast_qr::{ECL, Version, QRBuilder};
//!
//! let qrcode = QRBuilder::new("https://example.com/".into())
//!     .ecl(ECL::H)
//!     .version(Version::V03)
//!     .build();
//!
//! let svg = fast_qr::convert::svg::SvgBuilder::new()
//!     .shape(fast_qr::convert::svg::SvgShape::RoundedSquare)
//!     .build_qr(qrcode.unwrap());
//!
//! println!("{}", svg);
//! ```

pub use crate::ecl::ECL;
pub use crate::qr::{QRBuilder, QRCode};
pub use crate::version::Version;

mod bitstring;
mod datamasking;

pub mod convert;
mod default;
pub mod ecl;
mod encode;
mod hardcode;
mod helpers;
mod placement;
mod polynomials;
pub mod qr;
mod score;
pub mod version;

#[cfg(test)]
mod test;

#[cfg(target_arch = "wasm32")]
use wasm_bindgen::prelude::*;

#[cfg(target_arch = "wasm32")]
fn array_to_vec<const N: usize>(mat: [[bool; N]; N]) -> Vec<u8> {
    const MODULE_PAD_WIDTH: usize = 4;
    const MODULE_PAD_HEIGHT: usize = 4;
    const MODULE_WIDTH: usize = 8;
    const WHITE_PIXEL: [u8; 4] = [255, 255, 255, 255];
    const BLACK_PIXEL: [u8; 4] = [0, 0, 0, 255];

    let mut vecu8 = Vec::<u8>::with_capacity((8 + N) * 8 * (8 + N) * 8 * 4);

    fn pad_width(vec: &mut Vec<u8>) {
        // for _ in 0..MODULE_PAD_WIDTH {
        //     for _ in 0..MODULE_WIDTH {
        //         vec.extend_from_slice(&WHITE_PIXEL);
        //     }
        // }

        vec.extend(std::iter::repeat(255).take(MODULE_PAD_WIDTH * MODULE_WIDTH * 4));
    }

    fn pad_height<const N: usize>(vec: &mut Vec<u8>) {
        vec.extend(std::iter::repeat(255).take(
            MODULE_WIDTH
                * MODULE_WIDTH
                * MODULE_PAD_WIDTH
                * MODULE_PAD_HEIGHT
                * (N + (MODULE_PAD_WIDTH + MODULE_PAD_HEIGHT)),
        ));
    }

    pad_height::<N>(&mut vecu8);
    for i in 0..N {
        for _ in 0..MODULE_WIDTH {
            pad_width(&mut vecu8);
            for j in 0..N {
                for _ in 0..MODULE_WIDTH {
                    let pixels = match mat[i][j] {
                        true => &BLACK_PIXEL,
                        false => &WHITE_PIXEL,
                    };

                    vecu8.extend_from_slice(pixels);
                }
            }
            pad_width(&mut vecu8);
        }
    }
    pad_height::<N>(&mut vecu8);

    return vecu8;
}

#[cfg(target_arch = "wasm32")]
fn bool_to_u8<const N: usize>(mat: [[bool; N]; N]) -> Vec<u8> {
    let mut vec = Vec::with_capacity(N * N);

    for line in mat {
        let mut tmp = line.iter().map(|x| *x as u8).collect();
        vec.append(&mut tmp);
    }

    return vec;
}

#[cfg(target_arch = "wasm32")]
#[wasm_bindgen]
pub fn qr(content: &str) -> Vec<u8> {
    let qrcode = QRCode::new(content.as_bytes(), None, None, None);
    if qrcode.is_err() {
        return Vec::new();
    }

    let qrcode = qrcode.unwrap();

    match qrcode {
        QRCode::V01(m) => bool_to_u8(*m), //array_to_vec(m),
        QRCode::V02(m) => bool_to_u8(*m), //array_to_vec(m),
        QRCode::V03(m) => bool_to_u8(*m), //array_to_vec(m),
        QRCode::V04(m) => bool_to_u8(*m), //array_to_vec(m),
        QRCode::V05(m) => bool_to_u8(*m), //array_to_vec(m),
        QRCode::V06(m) => bool_to_u8(*m), //array_to_vec(m),
        QRCode::V07(m) => bool_to_u8(*m), //array_to_vec(m),
        QRCode::V08(m) => bool_to_u8(*m), //array_to_vec(m),
        QRCode::V09(m) => bool_to_u8(*m), //array_to_vec(m),
        QRCode::V10(m) => bool_to_u8(*m), //array_to_vec(m),
        QRCode::V11(m) => bool_to_u8(*m), //array_to_vec(m),
        QRCode::V12(m) => bool_to_u8(*m), //array_to_vec(m),
        QRCode::V13(m) => bool_to_u8(*m), //array_to_vec(m),
        QRCode::V14(m) => bool_to_u8(*m), //array_to_vec(m),
        QRCode::V15(m) => bool_to_u8(*m), //array_to_vec(m),
        QRCode::V16(m) => bool_to_u8(*m), //array_to_vec(m),
        QRCode::V17(m) => bool_to_u8(*m), //array_to_vec(m),
        QRCode::V18(m) => bool_to_u8(*m), //array_to_vec(m),
        QRCode::V19(m) => bool_to_u8(*m), //array_to_vec(m),
        QRCode::V20(m) => bool_to_u8(*m), //array_to_vec(m),
        QRCode::V21(m) => bool_to_u8(*m), //array_to_vec(m),
        QRCode::V22(m) => bool_to_u8(*m), //array_to_vec(m),
        QRCode::V23(m) => bool_to_u8(*m), //array_to_vec(m),
        QRCode::V24(m) => bool_to_u8(*m), //array_to_vec(m),
        QRCode::V25(m) => bool_to_u8(*m), //array_to_vec(m),
        QRCode::V26(m) => bool_to_u8(*m), //array_to_vec(m),
        QRCode::V27(m) => bool_to_u8(*m), //array_to_vec(m),
        QRCode::V28(m) => bool_to_u8(*m), //array_to_vec(m),
        QRCode::V29(m) => bool_to_u8(*m), //array_to_vec(m),
        QRCode::V30(m) => bool_to_u8(*m), //array_to_vec(m),
        QRCode::V31(m) => bool_to_u8(*m), //array_to_vec(m),
        QRCode::V32(m) => bool_to_u8(*m), //array_to_vec(m),
        QRCode::V33(m) => bool_to_u8(*m), //array_to_vec(m),
        QRCode::V34(m) => bool_to_u8(*m), //array_to_vec(m),
        QRCode::V35(m) => bool_to_u8(*m), //array_to_vec(m),
        QRCode::V36(m) => bool_to_u8(*m), //array_to_vec(m),
        QRCode::V37(m) => bool_to_u8(*m), //array_to_vec(m),
        QRCode::V38(m) => bool_to_u8(*m), //array_to_vec(m),
        QRCode::V39(m) => bool_to_u8(*m), //array_to_vec(m),
        QRCode::V40(m) => bool_to_u8(*m), //array_to_vec(m),
    }
}