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use crate::file_reader::FgbReader;
use crate::http_reader::HttpFgbReader;
use async_trait::async_trait;
use geozero::error::Result;
use geozero::{FeatureProcessor, HttpReader, OpenOpts, ReadSeek, Reader, SelectOpts};

pub struct Driver<'a>(FgbReader<'a>);

impl<'a> Reader<'a> for Driver<'a> {
    fn open<R: 'a + ReadSeek>(reader: &'a mut R, _opts: &OpenOpts) -> Result<Self> {
        Ok(Driver {
            0: FgbReader::open(reader)?,
        })
    }

    fn select(&mut self, opts: &SelectOpts) -> Result<()> {
        if let Some(bbox) = &opts.extent {
            self.0
                .select_bbox(bbox.minx, bbox.miny, bbox.maxx, bbox.maxy)?;
        } else {
            self.0.select_all()?;
        }
        Ok(())
    }

    fn process<P: FeatureProcessor>(&mut self, processor: &mut P) -> Result<()> {
        self.0.process_features(processor)
    }
}

pub struct HttpDriver(HttpFgbReader);

#[async_trait]
impl HttpReader for HttpDriver {
    async fn open(url: String, _opts: &OpenOpts) -> Result<Self> {
        Ok(HttpDriver {
            0: HttpFgbReader::open(&url).await?,
        })
    }

    async fn select(&mut self, opts: &SelectOpts) -> Result<()> {
        if let Some(bbox) = &opts.extent {
            self.0
                .select_bbox(bbox.minx, bbox.miny, bbox.maxx, bbox.maxy)
                .await?;
        } else {
            self.0.select_all().await?;
        }
        Ok(())
    }

    async fn process<P: FeatureProcessor + Send>(&mut self, processor: &mut P) -> Result<()> {
        self.0.process_features(processor).await?;
        Ok(())
    }
}