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// SPDX-License-Identifier: MIT OR Apache-2.0
// This file is part of Static Web Server.
// See https://static-web-server.net/ for more information
// Copyright (C) 2019-present Jose Quintana <joseluisq.net>

//! Redirection module to handle config redirect URLs with pattern matching support.
//!

use crate::settings::Redirects;

/// It returns a redirect's destination path and status code if the current request uri
/// matches against the provided redirect's array.
pub fn get_redirection<'a>(
    uri_host: &'a str,
    uri_path: &'a str,
    redirects_opts: Option<&'a [Redirects]>,
) -> Option<&'a Redirects> {
    if let Some(redirects_vec) = redirects_opts {
        for redirect_entry in redirects_vec.iter() {
            // Match `host` redirect against `uri_host` if specified
            if let Some(host) = &redirect_entry.host {
                tracing::debug!(
                    "checking host '{host}' redirect entry against uri host '{uri_host}'"
                );
                if !host.eq(uri_host) {
                    continue;
                }
            }

            // Match source glob pattern against the request uri path
            if redirect_entry.source.is_match(uri_path) {
                return Some(redirect_entry);
            }
        }
    }

    None
}