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use crate::errors::ShellError;
use crate::object::{Primitive, Switch, Value};
use crate::parser::parse::span::Span;
use crate::prelude::*;
use mime::Mime;
use std::path::{Path, PathBuf};
use std::str::FromStr;
command! {
Open as open(args, path: Spanned<PathBuf>, --raw: Switch,) {
let span = args.name_span;
let cwd = args
.env
.lock()
.unwrap()
.path()
.to_path_buf();
let full_path = PathBuf::from(cwd);
let path_str = path.to_str().ok_or(ShellError::type_error("Path", "invalid path".spanned(path.span)))?;
let (file_extension, contents, contents_span) = fetch(&full_path, path_str, path.span)?;
let mut stream = VecDeque::new();
let file_extension = if raw.is_present() {
None
} else {
file_extension
};
match contents {
Value::Primitive(Primitive::String(string)) =>
stream.push_back(ReturnSuccess::value(parse_as_value(
file_extension,
string,
contents_span,
span,
)?)
),
other => stream.push_back(ReturnSuccess::value(other.spanned(span))),
};
stream
}
}
pub fn fetch(
cwd: &PathBuf,
location: &str,
span: Span,
) -> Result<(Option<String>, Value, Span), ShellError> {
let mut cwd = cwd.clone();
if location.starts_with("http:") || location.starts_with("https:") {
let response = reqwest::get(location);
match response {
Ok(mut r) => match r.text() {
Ok(s) => {
let path_extension = r
.url()
.path_segments()
.and_then(|segments| segments.last())
.and_then(|name| if name.is_empty() { None } else { Some(name) })
.and_then(|name| {
PathBuf::from(name)
.extension()
.map(|name| name.to_string_lossy().to_string())
});
let extension = match r.headers().get("content-type") {
Some(content_type) => {
let content_type =
Mime::from_str(content_type.to_str().unwrap()).unwrap();
match (content_type.type_(), content_type.subtype()) {
(mime::APPLICATION, mime::XML) => Some("xml".to_string()),
(mime::APPLICATION, mime::JSON) => Some("json".to_string()),
_ => path_extension,
}
}
None => path_extension,
};
Ok((extension, Value::string(s), span))
}
Err(_) => {
return Err(ShellError::labeled_error(
"Web page contents corrupt",
"received garbled data",
span,
));
}
},
Err(_) => {
return Err(ShellError::labeled_error(
"URL could not be opened",
"url not found",
span,
));
}
}
} else {
cwd.push(Path::new(location));
match std::fs::read(&cwd) {
Ok(bytes) => match std::str::from_utf8(&bytes) {
Ok(s) => Ok((
cwd.extension()
.map(|name| name.to_string_lossy().to_string()),
Value::string(s),
span,
)),
Err(_) => Ok((None, Value::Binary(bytes), span)),
},
Err(_) => {
return Err(ShellError::labeled_error(
"File cound not be opened",
"file not found",
span,
));
}
}
}
}
pub fn parse_as_value(
extension: Option<String>,
contents: String,
contents_span: Span,
name_span: Option<Span>,
) -> Result<Spanned<Value>, ShellError> {
match extension {
Some(x) if x == "toml" => {
crate::commands::from_toml::from_toml_string_to_value(contents, contents_span)
.map(|c| c.spanned(contents_span))
.map_err(move |_| {
ShellError::maybe_labeled_error(
"Could not open as TOML",
"could not open as TOML",
name_span,
)
})
}
Some(x) if x == "json" => {
crate::commands::from_json::from_json_string_to_value(contents, contents_span)
.map(|c| c.spanned(contents_span))
.map_err(move |_| {
ShellError::maybe_labeled_error(
"Could not open as JSON",
"could not open as JSON",
name_span,
)
})
}
Some(x) if x == "ini" => {
crate::commands::from_ini::from_ini_string_to_value(contents, contents_span)
.map(|c| c.spanned(contents_span))
.map_err(move |_| {
ShellError::maybe_labeled_error(
"Could not open as INI",
"could not open as INI",
name_span,
)
})
}
Some(x) if x == "xml" => {
crate::commands::from_xml::from_xml_string_to_value(contents, contents_span).map_err(
move |_| {
ShellError::maybe_labeled_error(
"Could not open as XML",
"could not open as XML",
name_span,
)
},
)
}
Some(x) if x == "yml" => {
crate::commands::from_yaml::from_yaml_string_to_value(contents, contents_span).map_err(
move |_| {
ShellError::maybe_labeled_error(
"Could not open as YAML",
"could not open as YAML",
name_span,
)
},
)
}
Some(x) if x == "yaml" => {
crate::commands::from_yaml::from_yaml_string_to_value(contents, contents_span).map_err(
move |_| {
ShellError::maybe_labeled_error(
"Could not open as YAML",
"could not open as YAML",
name_span,
)
},
)
}
_ => Ok(Value::string(contents).spanned(contents_span)),
}
}