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// Based on https://github.com/utkarshkukreti/markup.rs/blob/master/markup/src/lib.rs
use std::fmt::{self, Display};

use v_htmlescape::escape;

/// Render trait, used for wrap unsafe expressions `{{ ... }}` when it's in a html template
pub trait Render {
    fn render(&self, f: &mut fmt::Formatter) -> fmt::Result;
}

macro_rules! str_display {
    ($($ty:ty)*) => {
        $(
            impl Render for &$ty {
                #[inline(always)]
                fn render(&self, f: &mut fmt::Formatter) -> fmt::Result {
                    escape(self).fmt(f)
                }
            }
        )*
    };
}

#[rustfmt::skip]
str_display!(str &str &&str &&&str &&&&str);

macro_rules! string_display {
    ($($ty:ty)*) => {
        $(
            impl Render for $ty {
                #[inline(always)]
                fn render(&self, f: &mut fmt::Formatter) -> fmt::Result {
                    escape(self.as_str()).fmt(f)
                }
            }
        )*
    };
}

#[rustfmt::skip]
string_display!(String &String &&String &&&String &&&&String);

macro_rules! raw_display {
    ($($ty:ty)*) => {
        $(
            impl Render for $ty {
                #[inline(always)]
                fn render(&self, f: &mut fmt::Formatter) -> fmt::Result {
                    self.fmt(f)
                }
            }
        )*
    };
}

#[rustfmt::skip]
raw_display! {
    bool
    char
    u8 u16 u32 u64 u128 usize
    i8 i16 i32 i64 i128 isize
    f32 f64

    &bool
    &char
    &u8 &u16 &u32 &u64 &u128 &usize
    &i8 &i16 &i32 &i64 &i128 &isize
    &f32 &f64

    &&bool
    &&char
    &&u8 &&u16 &&u32 &&u64 &&u128 &&usize
    &&i8 &&i16 &&i32 &&i64 &&i128 &&isize
    &&f32 &&f64

    &&&bool
    &&&char
    &&&u8 &&&u16 &&&u32 &&&u64 &&&u128 &&&usize
    &&&i8 &&&i16 &&&i32 &&&i64 &&&i128 &&&isize
    &&&f32 &&&f64

    &&&&bool
    &&&&char
    &&&&u8 &&&&u16 &&&&u32 &&&&u64 &&&&u128 &&&&usize
    &&&&i8 &&&&i16 &&&&i32 &&&&i64 &&&&i128 &&&&isize
    &&&&f32 &&&&f64
}