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use quick_xml::events::{BytesDecl, Event};
use quick_xml::Writer;
use std::io;

use super::driver::*;
use super::XlsxError;

use structs::drawing::Theme;
use structs::WriterManager;

pub(crate) fn write<W: io::Seek + io::Write>(
    theme: &Theme,
    writer_mng: &mut WriterManager<W>,
) -> Result<(), XlsxError> {
    let mut writer = Writer::new(io::Cursor::new(Vec::new()));
    // XML header
    let _ = writer.write_event(Event::Decl(BytesDecl::new(
        "1.0",
        Some("UTF-8"),
        Some("yes"),
    )));
    write_new_line(&mut writer);

    // a:theme
    theme.write_to(&mut writer);

    let target = "xl/theme/theme1.xml";
    writer_mng.add_writer(target, writer)
}