tinted_builder/
template.rs

1mod base16;
2
3use crate::{error::TintedBuilderError, scheme::Scheme};
4
5/// A struct representing a template that can be rendered with the provided color scheme.
6///
7/// The `Template` struct holds the content of the template and the scheme used to render it. It
8/// provides methods to create a new template and render it into a `String` using the specified
9/// color scheme.
10pub struct Template {
11    content: String,
12    scheme: Scheme,
13}
14
15impl Template {
16    /// Creates a new `Template` instance.
17    ///
18    /// # Arguments
19    ///
20    /// * `content` - A `String` representing the content of the template.
21    /// * `scheme` - A `Scheme` enum that determines which color scheme to use when rendering the template.
22    ///
23    /// # Returns
24    ///
25    /// A new `Template` instance with the provided content and scheme.
26    pub fn new(content: String, scheme: Scheme) -> Template {
27        Template { content, scheme }
28    }
29
30    /// Renders the template into a `String` using the provided color scheme.
31    ///
32    /// This method applies the specified `Scheme` to the template content, converting placeholders
33    /// in the content to their corresponding values from the scheme context.
34    ///
35    /// # Errors
36    ///
37    /// Returns a `TintedBuilderError` if the rendering process fails. This could happen if the
38    /// content contains placeholders that cannot be resolved using the scheme context.
39    ///
40    /// # Examples
41    ///
42    /// ```
43    /// use tinted_builder::{Template, Scheme};
44    ///
45    /// let scheme_yaml = r#"
46    /// system: "base16"
47    /// name: "Some name"
48    /// author: "Some author"
49    /// variant: "dark"
50    /// palette:
51    ///   base00: "241b26"
52    ///   base01: "2f2a3f"
53    ///   base02: "46354a"
54    ///   base03: "6c3cb2"
55    ///   base04: "7e5f83"
56    ///   base05: "eed5d9"
57    ///   base06: "d9c2c6"
58    ///   base07: "e4ccd0"
59    ///   base08: "877bb6"
60    ///   base09: "de5b44"
61    ///   base0A: "a84a73"
62    ///   base0B: "c965bf"
63    ///   base0C: "9c5fce"
64    ///   base0D: "6a9eb5"
65    ///   base0E: "78a38f"
66    ///   base0F: "a3a079"
67    /// "#;
68    /// let template = Template::new(
69    ///     r#"{{scheme-system}} scheme name is "{{scheme-name}}" and first color is #{{base00-hex}}"#.to_string(),
70    ///     Scheme::Base16(serde_yaml::from_str(scheme_yaml).unwrap())
71    /// );
72    /// let rendered = template.render().unwrap();
73    ///
74    /// assert_eq!(
75    ///     rendered,
76    ///     r#"base16 scheme name is "Some name" and first color is #241b26"#
77    /// );
78    /// ```
79    pub fn render(&self) -> Result<String, TintedBuilderError> {
80        match self.scheme {
81            Scheme::Base16(ref scheme) | Scheme::Base24(ref scheme) => {
82                let ctx = base16::to_template_context(&scheme.clone());
83                let rendered = base16::render(&self.content, &ctx)?;
84
85                Ok(rendered)
86            }
87        }
88    }
89}