const axios = require('axios');

// Middleware function to fetch leagues data
const fetchLeaguesData = async (req, res, next) => {
    try {
        // Array of years to fetch leagues data
        const league_ids = [2021]; /* Add more league IDs if needed */

        // Array to store all leagues data
        let allLeagues = [];

        // Loop through each year and fetch leagues data
        for (const league_id of league_ids) {
            const response = await axios({
                url: `http://api.football-data.org/v4/competitions/${league_id}/standings?season`,
                method: 'GET',
                headers: {
                    'X-Auth-Token': '0aa1ed31245d4a36b1ef5a79150324b3', // Add your API key here
                },
            });

            // Extract relevant data from the API response
            const league_data = response.data.standings[0].table.map(team => ({
                competition: {
                    league_id: response.data.competition.id,
                    league_name: response.data.competition.name,
                    league_emblem: response.data.competition.emblem
                },
                standings: {
                    table: {
                        league_position: team.position,
                        team_id: team.team.id,
                        team_name: team.team.name,
                        team_crest: team.team.crest
                    },
                },
            }));

            // Concatenate leagues data to allLeagues array
            allLeagues = allLeagues.concat(league_data);
        }

        // Attach all leagues data to res.locals
        res.locals.leagues = allLeagues;
        next();
    } 
    
    catch (error) 
    {
        console.error('Error fetching leagues data:', error);
        res.locals.leagues = []; // Set an empty array if there's an error
        next(); // Call next middleware or route handler
    }
};

module.exports = fetchLeaguesData;