codemonument_bx 0.3.5

use crate::template::get_default_template;

use std::fs;

// Creates a new Bonnie configuration file using a template, or from the default
// This takes the path to write to (set through 'BONNIE_CONF' or default `./bonnie.toml`)
pub fn init(template: Option<String>, cfg_path: &str) -> Result<(), String> {
	// Check if there's already a config file in this directory
	if fs::metadata(cfg_path).is_ok() {
		Err(String::from("A Bonnie configuration file already exists in this directory. If you want to create a new one, please delete the old one first."))
	} else {
		// Check if a template has been given
		let output;
		if let Some(template_path) = template {
			if fs::metadata(&template_path).is_ok() {
				// We have a valid template file
				let contents = fs::read_to_string(&template_path);
				let contents = match contents {
					Ok(contents) => contents,
					Err(_) => return Err(format!("An error occurred while attempting to read the given template file '{}'. Please make sure the file exists and you have the permissions necessary to read from it.", &template_path))
				};
				output = fs::write(cfg_path, contents);
			} else {
				// We have a template file that doesn't exist
				return Err(format!("The given template file at '{}' does not exist or can't be read. Please make sure the file exists and you have the permissions necessary to read from it.", &template_path));
			}
		} else {
			// Try to get the default template file from `~/.bonnie/template.toml`
			// If it's not available, we'll use a pre-programmed default
			let template = get_default_template()?;
			output = fs::write(cfg_path, template);
		}

		match output {
    		Ok(_) => Ok(()),
    		Err(_) => Err(format!("Error creating new {}, make sure you have the permissions to write to this directory.", cfg_path))
    	}
	}
}