Function handler

plugins/distance.js:116–183

(sock, message, args, context)

    description: 'Calculate distance between two cities with flight and driving time estimates',
    usage: '.distance <city1> to <city2>\nExample: .distance karachi to dubai',
    async handler(sock, message, args, context) {
        const { chatId, channelInfo } = context;
        const input = args.join(' ').trim().toLowerCase();
        if (!input) {
            return await sock.sendMessage(chatId, {
                text: `🌍 *Distance Calculator*\n\n` +
                    `*Usage:* \`.distance <city1> to <city2>\`\n\n` +
                    `*Examples:*\n` +
                    `• \`.distance karachi to dubai\`\n` +
                    `• \`.distance lahore to islamabad\`\n` +
                    `• \`.distance london to newyork\`\n` +
                    `• \`.distance tokyo to singapore\`\n\n` +
                    `*Supported cities include:*\n` +
                    `🇵🇰 PK · 🇮🇳 IN · 🇦🇪 UAE · 🇸🇦 SA · 🇬🇧 UK\n` +
                    `🇺🇸 USA · 🇨🇳 CN · 🇯🇵 JP · 🇫🇷 FR · 🇩🇪 DE\n` +
                    `🇧🇩 BD · 🇦🇫 AF · 🇮🇷 IR · 🇹🇷 TR · + many more`,
                ...channelInfo
            }, { quoted: message });
        }
        const toIndex = args.findIndex((a) => a.toLowerCase() === 'to');
        if (toIndex === -1 || toIndex === 0 || toIndex === args.length - 1) {
            return await sock.sendMessage(chatId, {
                text: `❌ Use: \`.distance <city1> to <city2>\``,
                ...channelInfo
            }, { quoted: message });
        }
        const city1Input = args.slice(0, toIndex).join('').toLowerCase();
        const city2Input = args.slice(toIndex + 1).join('').toLowerCase();
        const city1 = findCity(city1Input);
        const city2 = findCity(city2Input);
        if (!city1) {
            return await sock.sendMessage(chatId, {
                text: `❌ City not found: *${args.slice(0, toIndex).join(' ')}*\n\nTry common city names like: karachi, dubai, london, newyork`,
                ...channelInfo
            }, { quoted: message });
        }
        if (!city2) {
            return await sock.sendMessage(chatId, {
                text: `❌ City not found: *${args.slice(toIndex + 1).join(' ')}*\n\nTry common city names like: karachi, dubai, london, newyork`,
                ...channelInfo
            }, { quoted: message });
        }
        if (city1.name === city2.name) {
            return await sock.sendMessage(chatId, {
                text: `😄 Both cities are the same! Distance is 0 km.`,
                ...channelInfo
            }, { quoted: message });
        }
        const km = haversine(city1.lat, city1.lon, city2.lat, city2.lon);
        const miles = km * 0.621371;
        const nm = km * 0.539957;
        await sock.sendMessage(chatId, {
            text: `🌍 *Distance Calculator*\n\n` +
                `${city1.flag} *From:* ${city1.name}, ${city1.country}\n` +
                `${city2.flag} *To:* ${city2.name}, ${city2.country}\n\n` +
                `━━━━━━━━━━━━━━━━━\n` +
                `📏 *Distance:*\n` +
                `   • ${Math.round(km).toLocaleString()} km\n` +