story_dl/
error.rs

1use {
2    isahc::http::uri::InvalidUri,
3    std::{error, fmt, io, str::Utf8Error},
4};
5
6#[derive(Debug, thiserror::Error)]
7pub enum Error {
8    #[error("html scraping error: {err}")]
9    Scrape {
10        #[from]
11        err: ScrapeError,
12    },
13
14    #[error("http request error: {err}")]
15    Request {
16        #[from]
17        err: RequestError,
18    },
19
20    #[error("invalid url passed: {err}")]
21    Uri {
22        #[from]
23        err: InvalidUri,
24    },
25
26    #[error("tokio thread pool is empty or missing")]
27    Canceled,
28}
29
30#[derive(Debug)]
31pub enum ScrapeError {
32    Io(io::Error),
33    Utf8(Utf8Error),
34
35    ElementNotFound(&'static str, &'static str),
36    AttributeNotFound(&'static str, &'static str),
37    UnparsableDate(&'static str),
38}
39
40impl fmt::Display for ScrapeError {
41    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> std::fmt::Result {
42        match self {
43            ScrapeError::Io(ref err) => err.fmt(f),
44            ScrapeError::Utf8(ref err) => err.fmt(f),
45            ScrapeError::ElementNotFound(ref site, ref selector) => write!(
46                f,
47                "Sector element for site {} not found: {}",
48                site, selector
49            ),
50            ScrapeError::AttributeNotFound(ref site, ref selector) => write!(
51                f,
52                "Element attribute for site {} not found: {}",
53                site, selector
54            ),
55            ScrapeError::UnparsableDate(ref site) => {
56                write!(f, "Unparsable date time for site {}", site,)
57            }
58        }
59    }
60}
61
62impl error::Error for ScrapeError {
63    fn source(&self) -> Option<&(dyn error::Error + 'static)> {
64        match self {
65            ScrapeError::Io(ref err) => Some(err),
66            ScrapeError::Utf8(ref err) => Some(err),
67            ScrapeError::ElementNotFound(_, _)
68            | ScrapeError::AttributeNotFound(_, _)
69            | ScrapeError::UnparsableDate(_) => None,
70        }
71    }
72}
73
74impl From<io::Error> for ScrapeError {
75    fn from(err: io::Error) -> ScrapeError {
76        ScrapeError::Io(err)
77    }
78}
79
80impl From<Utf8Error> for ScrapeError {
81    fn from(err: Utf8Error) -> ScrapeError {
82        ScrapeError::Utf8(err)
83    }
84}
85
86#[derive(Debug)]
87pub enum RequestError {
88    Http(isahc::http::Error),
89    Io(io::Error),
90    Isahc(isahc::Error),
91}
92
93impl fmt::Display for RequestError {
94    fn fmt(&self, f: &mut fmt::Formatter<'_>) -> std::fmt::Result {
95        match self {
96            RequestError::Http(ref err) => err.fmt(f),
97            RequestError::Io(ref err) => err.fmt(f),
98            RequestError::Isahc(ref err) => err.fmt(f),
99        }
100    }
101}
102
103impl error::Error for RequestError {
104    fn source(&self) -> Option<&(dyn error::Error + 'static)> {
105        match self {
106            RequestError::Http(ref err) => Some(err),
107            RequestError::Io(ref err) => Some(err),
108            RequestError::Isahc(ref err) => Some(err),
109        }
110    }
111}
112
113impl From<isahc::http::Error> for RequestError {
114    fn from(err: isahc::http::Error) -> RequestError {
115        RequestError::Http(err)
116    }
117}
118
119impl From<io::Error> for RequestError {
120    fn from(err: io::Error) -> RequestError {
121        RequestError::Io(err)
122    }
123}
124
125impl From<isahc::Error> for RequestError {
126    fn from(err: isahc::Error) -> RequestError {
127        RequestError::Isahc(err)
128    }
129}
story_dl/error.rs

story_dl/
error.rs
