templates.rs

use crate::errors::{ Result };
use crate::state::{ ApplicationState };

use serde::{ Serialize };

#[derive(Serialize)]
struct ApplicationContext {
	name: String,
	version: String,
}

#[derive(Serialize)]
struct PageContext {
	title: String,
	content: String,
}

pub(crate) fn index_context(state: &ApplicationState) -> Result<tera::Context> {
	let mut context = tera::Context::new();
	add_application_context(&mut context, state);
	add_page_context(&mut context, state, "index")?;

	Ok(context)
}

pub(crate) fn page_context(state: &ApplicationState, page_path: &str) -> Result<tera::Context> {
	let mut context = tera::Context::new();
	add_application_context(&mut context, state);
	add_page_context(&mut context, state, page_path)?;

	Ok(context)
}

fn add_application_context(context: &mut tera::Context, state: &ApplicationState) {
	let application_context = ApplicationContext {
		name: state.name.clone(),
		version: env!("CARGO_PKG_VERSION").to_string(),
	};

	context.insert("application", &application_context);
}

fn add_page_context(context: &mut tera::Context, state: &ApplicationState, page_path: &str) -> Result<()> {
	let page = state.content_provider.find_page(page_path)?;

	let page_context = PageContext {
		title: page.title,
		content: page.content,
	};

	context.insert("page", &page_context);
	Ok(())
}