Function handler

plugins/units.js:150–234

(sock, message, args, context)

    description: 'Convert between 100+ units — length, weight, speed, data, temperature and more',
    usage: '.units <value> <from> to <to>\nExample: .units 100 km to miles',
    async handler(sock, message, args, context) {
        const { chatId, channelInfo } = context;
        const input = args.join(' ').trim().toLowerCase();
        if (!input) {
            return await sock.sendMessage(chatId, {
                text: `📏 *Unit Converter*\n\n` +
                    `*Usage:* \`.units <value> <from> to <to>\`\n\n` +
                    `*Examples:*\n` +
                    `• \`.units 100 km to mi\`\n` +
                    `• \`.units 70 kg to lb\`\n` +
                    `• \`.units 37 c to f\`\n` +
                    `• \`.units 1 gb to mb\`\n` +
                    `• \`.units 60 mph to kph\`\n` +
                    `• \`.units 1 yr to day\`\n` +
                    `• \`.units 1 atm to psi\`\n` +
                    `• \`.units 500 kcal to kj\`\n\n` +
                    `*Categories:*\n` +
                    `📐 length · ⚖️ weight · 🌡️ temperature\n` +
                    `💨 speed · 💾 data · 📦 volume\n` +
                    `🗺️ area · ⏱️ time · 🔋 energy · 🌬️ pressure`,
                ...channelInfo
            }, { quoted: message });
        }
        // Parse: <value> <from> to <to>   OR   <value> <from> <to>
        const toIndex = args.findIndex((a) => a.toLowerCase() === 'to');
        let value, fromUnit, toUnit;
        if (toIndex === 2 && args.length === 4) {
            value = parseFloat(args[0]);
            fromUnit = args[1].toLowerCase();
            toUnit = args[3].toLowerCase();
        }
        else if (args.length === 3 && toIndex === -1) {
            value = parseFloat(args[0]);
            fromUnit = args[1].toLowerCase();
            toUnit = args[2].toLowerCase();
        }
        else {
            return await sock.sendMessage(chatId, {
                text: `❌ Wrong format.\n\nUse: \`.units 100 km to mi\``,
                ...channelInfo
            }, { quoted: message });
        }
        if (isNaN(value)) {
            return await sock.sendMessage(chatId, {
                text: `❌ Invalid number: \`${args[0]}\``,
                ...channelInfo
            }, { quoted: message });
        }
        const res = convert(value, fromUnit, toUnit);
        if (!res) {
            const fromCat = UNIT_TO_CATEGORY[fromUnit];
            const toCat = UNIT_TO_CATEGORY[toUnit];
            if (!fromCat) {
                return await sock.sendMessage(chatId, {
                    text: `❌ Unknown unit: \`${fromUnit}\`\n\nUse \`.units\` to see all supported units.`,
                    ...channelInfo
                }, { quoted: message });
            }