#![cfg(feature = "textlayout")]
use skia_safe::{
    shaper::{
        run_handler::{Buffer, RunInfo},
        RunHandler,
    },
    GlyphId, Point,
};

#[derive(Default, Debug)]
pub struct DebugRunHandler {
    glyphs: Vec<GlyphId>,
    points: Vec<Point>,
}

impl RunHandler for DebugRunHandler {
    fn begin_line(&mut self) {
        println!("begin_line");
    }

    fn run_info(&mut self, info: &RunInfo) {
        println!("run_info: {:?} {:?}", info.advance, info.utf8_range);
    }

    fn commit_run_info(&mut self) {
        println!("commit_run_info");
    }

    fn run_buffer(&mut self, info: &RunInfo) -> Buffer {
        println!("run_buffer {}", info.glyph_count);
        let count = info.glyph_count;
        self.glyphs.resize(count, 0);
        self.points.resize(count, Point::default());
        Buffer::new(&mut self.glyphs, &mut self.points, None)
    }

    fn commit_run_buffer(&mut self, _info: &RunInfo) {
        println!("commit_run_buffer");
        println!("state: {self:?}");
    }

    fn commit_line(&mut self) {
        println!("commit_line");
    }
}

#[cfg(test)]
mod tests {
    use crate::DebugRunHandler;
    use skia_safe::{shapers, Font, Shaper};

    #[test]
    #[serial_test::serial]
    fn test_rtl_text_shaping() {
        let shaper = Shaper::new(None);
        shaper.shape(
            "العربية",
            &Font::default(),
            false,
            10000.0,
            &mut DebugRunHandler::default(),
        );
    }

    #[test]
    #[serial_test::serial]
    fn test_skunicode_parameterized_shaper() {
        shapers::hb::shape_dont_wrap_or_reorder(None).expect("Shaper");
    }
}