33 lines
1005 B
Rust
33 lines
1005 B
Rust
pub type Result<T> = std::result::Result<T, Error>;
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#[derive(Debug, thiserror::Error)]
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pub enum Error {
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#[error("couldn't find expected element on the lodestone: {0}")]
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MissingElement(String),
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#[error("the content scraped from the lodestone was invalid: {0}")]
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InvalidContent(String),
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#[error("invalid page (1 through {0} available)")]
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InvalidPage(u64),
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#[error("invalid number: {0}")]
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InvalidNumber(std::num::ParseIntError),
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#[error("invalid url: {0}")]
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InvalidUrl(url::ParseError),
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}
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impl Error {
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pub fn missing_element(select: &scraper::Selector) -> Self {
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use cssparser::ToCss;
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let css = select.selectors.iter().map(ToCss::to_css_string).collect::<Vec<_>>().join(" ");
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Error::MissingElement(css)
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}
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pub fn invalid_content(expecting: &str, found: Option<&str>) -> Self {
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let s = match found {
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Some(f) => format!("expecting `{}`, found `{}`", expecting, f),
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None => format!("expecting `{}`", expecting),
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};
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Error::InvalidContent(s)
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}
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}
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