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 #[must_use]
27 pub const fn new(content: String, scheme: Scheme) -> Self {
28 Self { content, scheme }
29 }
30
31 /// Renders the template into a `String` using the provided color scheme.
32 ///
33 /// This method applies the specified `Scheme` to the template content, converting placeholders
34 /// in the content to their corresponding values from the scheme context.
35 ///
36 /// # Errors
37 ///
38 /// Returns a `TintedBuilderError` if the rendering process fails. This could happen if the
39 /// content contains placeholders that cannot be resolved using the scheme context.
40 ///
41 /// # Examples
42 ///
43 /// ```
44 /// use tinted_builder::{Template, Scheme};
45 ///
46 /// let scheme_yaml = r#"
47 /// system: "base16"
48 /// name: "Some name"
49 /// author: "Some author"
50 /// variant: "dark"
51 /// palette:
52 /// base00: "241b26"
53 /// base01: "2f2a3f"
54 /// base02: "46354a"
55 /// base03: "6c3cb2"
56 /// base04: "7e5f83"
57 /// base05: "eed5d9"
58 /// base06: "d9c2c6"
59 /// base07: "e4ccd0"
60 /// base08: "877bb6"
61 /// base09: "de5b44"
62 /// base0A: "a84a73"
63 /// base0B: "c965bf"
64 /// base0C: "9c5fce"
65 /// base0D: "6a9eb5"
66 /// base0E: "78a38f"
67 /// base0F: "a3a079"
68 /// "#;
69 /// let template = Template::new(
70 /// r#"{{scheme-system}} scheme name is "{{scheme-name}}" and first color is #{{base00-hex}}"#.to_string(),
71 /// Scheme::Base16(serde_yaml::from_str(scheme_yaml).unwrap())
72 /// );
73 /// let rendered = template.render().unwrap();
74 ///
75 /// assert_eq!(
76 /// rendered,
77 /// r#"base16 scheme name is "Some name" and first color is #241b26"#
78 /// );
79 /// ```
80 pub fn render(&self) -> Result<String, TintedBuilderError> {
81 match self.scheme {
82 Scheme::Base16(ref scheme) | Scheme::Base24(ref scheme) => {
83 let ctx = base16::to_template_context(&scheme.clone());
84 let rendered = base16::render(&self.content, &ctx)?;
85
86 Ok(rendered)
87 }
88 }
89 }
90}