use crate::PreprocessorContext;
use regex::Regex;
use std::collections::HashMap;

use super::Template;

pub struct ActionTemplate;

impl ActionTemplate {
    pub fn new() -> Self {
        ActionTemplate
    }
}

impl Template for ActionTemplate {
    fn key(&self) -> &'static str {
        "action"
    }

    fn regex(&self) -> Regex {
        Regex::new(&format!(r"\{{#{}(.*?)\}}", self.key())).unwrap()
    }

    fn parse_args(&self, args: &str) -> HashMap<String, String> {
        let mut map = HashMap::new();
        map.insert("name".to_string(), args.trim().to_string());
        map
    }

    fn render(&self, _context: &PreprocessorContext, args: &HashMap<String, String>) -> String {
        let name = args.get("name").map(String::as_str).unwrap_or_default();

        let formatted_name = name
            .chars()
            .enumerate()
            .map(|(i, c)| {
                if i > 0 && c.is_uppercase() {
                    format!(" {}", c.to_lowercase())
                } else {
                    c.to_string()
                }
            })
            .collect::<String>()
            .trim()
            .to_string()
            .replace("::", ":");

        format!("<code class=\"hljs\">{}</code>", formatted_name)
    }
}