use std::{
    fs::File,
    io::{Read, Write},
    path::PathBuf,
};

use webaves::{
    header::HeaderMap,
    warc::{WARCReader, WARCWriter},
};

#[test_log::test]
fn minimal_warc_read() {
    let path = PathBuf::new()
        .join(env!("CARGO_MANIFEST_DIR"))
        .join("tests/data/warc_minimal.warc");
    dbg!(&path);
    let file = File::open(path).unwrap();
    let mut reader = WARCReader::new(file).unwrap();

    // record 0
    let metadata = reader.begin_record().unwrap().unwrap();

    assert_eq!(metadata.version(), "WARC/1.1");
    assert_eq!(metadata.file_offset(), 0);
    assert_eq!(metadata.block_length(), 10);
    assert_eq!(
        metadata.fields().get_str("WARC-Record-ID").unwrap(),
        "<urn:uuid:00000001-0002-0003-0004-000000000005>"
    );

    let mut block_buf = Vec::new();
    let mut block_reader = reader.read_block();
    block_reader.read_to_end(&mut block_buf).unwrap();

    assert_eq!(block_buf.len(), 10);
    assert_eq!(block_buf, b"\xf0\xf1\xf2\xf3\xf4\xf5\xf6\xf7\xf8\xf9");

    reader.end_record().unwrap();

    // record 1
    let metadata = reader.begin_record().unwrap().unwrap();

    assert_eq!(metadata.version(), "WARC/1.1");
    assert_eq!(metadata.file_offset(), 165);
    assert_eq!(metadata.block_length(), 16);
    assert_eq!(
        metadata.fields().get_str("WARC-Record-ID").unwrap(),
        "<urn:uuid:10000001-0002-0003-0004-000000000005>"
    );

    let mut block_buf = Vec::new();
    let mut block_reader = reader.read_block();
    block_reader.read_to_end(&mut block_buf).unwrap();

    assert_eq!(block_buf.len(), 16);
    assert_eq!(
        block_buf,
        b"\xf0\xf1\xf2\xf3\xf4\xf5\xf6\xf7\xf8\xf9\xfa\xfb\xfc\xfd\xfe\xff"
    );

    reader.end_record().unwrap();

    // eof
    let result = reader.begin_record().unwrap();
    assert!(result.is_none());
}

#[test_log::test]
fn minimal_warc_write() {
    let output_buf = Vec::new();
    let mut writer = WARCWriter::new(output_buf);

    let mut header = HeaderMap::new();
    header.insert("WARC-Type", "resource");
    header.insert("WARC-Date", "2000-12-30T01:02:03Z");
    header.insert(
        "WARC-Record-ID",
        "<urn:uuid:00000001-0002-0003-0004-000000000005>",
    );
    header.insert("Content-Length", "10");

    writer.begin_record(&header).unwrap();
    let mut block_writer = writer.write_block();
    block_writer
        .write_all(b"\xf0\xf1\xf2\xf3\xf4\xf5\xf6\xf7\xf8\xf9")
        .unwrap();
    writer.end_record().unwrap();

    let mut header = HeaderMap::new();
    header.insert("WARC-Type", "resource");
    header.insert("WARC-Date", "2001-12-30T01:02:03Z");
    header.insert(
        "WARC-Record-ID",
        "<urn:uuid:10000001-0002-0003-0004-000000000005>",
    );
    header.insert("Content-Length", "16");

    writer.begin_record(&header).unwrap();
    let mut block_writer = writer.write_block();
    block_writer
        .write_all(b"\xf0\xf1\xf2\xf3\xf4\xf5\xf6\xf7\xf8\xf9\xfa\xfb\xfc\xfd\xfe\xff")
        .unwrap();
    writer.end_record().unwrap();

    let output_buf = writer.into_inner();
    let path = PathBuf::new()
        .join(env!("CARGO_MANIFEST_DIR"))
        .join("tests/data/warc_minimal.warc");
    assert_eq!(output_buf, std::fs::read(path).unwrap());
}