const dataHub = require('../../tools/dataHub');

/**
 * Formatta i dati meteo in un messaggio Telegram leggibile.
 * @returns {string} Testo formattato Markdown
 */
function formatWeatherData() {
    const { forecast, sea } = dataHub.getWeatherData();

    if (!forecast && !sea) {
        return 'Nessun dato meteo disponibile.\nIl polling potrebbe non essere ancora partito.';
    }

    let text = '*Meteo Attuale*\n';
    text += `_${new Date().toLocaleTimeString('it-IT')}_\n\n`;

    if (forecast) {
        if (forecast.temperature !== null && forecast.temperature !== undefined) {
            text += `Temperatura: *${forecast.temperature}*C\n`;
        }
        if (forecast.humidity !== null && forecast.humidity !== undefined) {
            text += `Umidita: *${forecast.humidity}*%\n`;
        }
        if (forecast.pressure !== null && forecast.pressure !== undefined) {
            text += `Pressione: *${forecast.pressure}* hPa\n`;
        }
        if (forecast.rain !== null && forecast.rain !== undefined) {
            text += `Pioggia: *${forecast.rain}* mm\n`;
        }

        if (forecast.wind) {
            text += `\nVento:\n`;
            if (forecast.wind.speed !== null && forecast.wind.speed !== undefined) {
                text += `  Velocita: *${forecast.wind.speed}* km/h\n`;
            }
            if (forecast.wind.direction !== null && forecast.wind.direction !== undefined) {
                text += `  Direzione: *${forecast.wind.direction}*\n`;
            }
            if (forecast.wind.gusts !== null && forecast.wind.gusts !== undefined) {
                text += `  Raffiche: *${forecast.wind.gusts}* km/h\n`;
            }
        }
    }

    if (sea) {
        text += `\nMare:\n`;
        if (sea.waves) {
            if (sea.waves.height !== null && sea.waves.height !== undefined) {
                text += `  Altezza onde: *${sea.waves.height}* m\n`;
            }
            if (sea.waves.period !== null && sea.waves.period !== undefined) {
                text += `  Periodo: *${sea.waves.period}* s\n`;
            }
            if (sea.waves.direction !== null && sea.waves.direction !== undefined) {
                text += `  Direzione: *${sea.waves.direction}*\n`;
            }
        }
        if (sea.temperature !== null && sea.temperature !== undefined) {
            text += `  Temp. acqua: *${sea.temperature}*C\n`;
        }
    }

    return text;
}

module.exports = {
    command: 'weather',
    description: 'Mostra i dati meteo attuali',
    pattern: /\/weather/,
    execute: async (bot, msg) => {
        const chatId = msg.chat.id;
        const text = formatWeatherData();

        await bot.sendMessage(chatId, text, {
            parse_mode: 'Markdown',
            reply_markup: {
                inline_keyboard: [
                    [{ text: 'Aggiorna', callback_data: 'weather-refresh' }]
                ]
            }
        });
    },
    formatWeatherData
};