// Copyright (c) 2023, Sam Hadow
    //
    //path_to_string.js
    //
    //  This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
    //
    // This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
    //
    // You should have received a copy of the GNU General Public License along with this program. If not, see <https://www.gnu.org/licenses/>.

function path_to_string(path, edges, nodes) {
    // convert path (with only edges and nodes id) to a human-readable string
    let current = null;
    let string = ''
    for  (let i = 0; i < path.length; i++){
        current = edges.find(edge => edge.id === path[i][1]);
        if (current.type == "very easy" || current.type == "easy" || current.type == "difficult" || current.type == "very difficult" ){
            string += i+1 +') Descendez la piste: ' + current.name + '<br/>';
        } else if (current.type == "surface lift") {
            string += i+1 +') Prenez le téléski: ' + current.name + '<br/>';
        } else if (current.type == "gondola") {
            string += i+1 +') Prenez la télécabine: ' + current.name + '<br/>';
        } else if (current.type == "cable car") {
            string += i+1 +') Prenez le téléphérique: ' + current.name + '<br/>';
        } else if (current.type == "chairlift") {
            string += i+1 +') Prenez le télésiège: ' + current.name + '<br/>';
        } else if (current.type == "high speed chairlift") {
            string += i+1 +') Prenez le télésiège express débrayable: ' + current.name + '<br/>';
        } else if (current.type == "path") {
            direction = nodes.find(node => node.id === current.target).name;
            if (direction != '') {
                string += i+1 +') Prenez le chemin en direction de: ' + direction + '<br/>';
            } else {
                string += i+1 +') Prenez un chemin <br/>';
            }
        } else if (current.type == "free lift") {
            string += i+1 +') Prenez la remontée mécanique gratuite: ' + current.name + '<br/>';
        }
    }
    return string
}