wikipedia.js

const wiki = require('wikijs').default();
const {EmbedBuilder} = require('discord.js');

async function wikipedia(interaction){
    if (interaction.commandName === 'wiki') {
        const searchQuery = interaction.options.get('search').value;
        interaction.deferReply();
        try {
        const search = await wiki.search(searchQuery);
        if (search.results.length === 0) {
          interaction.editReply("No Wikipedia page found for that query.");
          return;
        }
        const result = await wiki.page(search.results[0]);
        const summary = await result.summary();
        const imageUrl = await result.mainImage();
        if (summary.length > 2048) {
          const truncatedSummary = summary.slice(0, 2045);
          const lastPeriodIndex = truncatedSummary.lastIndexOf('.');
          const finalSummary = truncatedSummary.slice(0, lastPeriodIndex + 1) + '';

          const embed = new EmbedBuilder()
            .setColor('White')
            .setTitle(`Wikipedia search: ${result.raw.title}`)
            .setDescription(finalSummary)
            .setThumbnail(imageUrl)
            .addFields({ name: '\u200b', value: '\u200b' })
            .addFields({ name: 'Read More:', value: `[${result.raw.title}](${result.raw.fullurl})`});
          interaction.editReply({ embeds: [embed] });
        } else {
          const embed = new EmbedBuilder()
            .setColor('White')
            .setTitle(`Wikipedia search: ${result.raw.title}`)
            .setDescription(summary)
            .setThumbnail(imageUrl)
            .addFields({ name: '\u200b', value: '\u200b' })
            .addFields({ name: 'Read More:', value: `[${result.raw.title}](${result.raw.fullurl})`});
          interaction.editReply({ embeds: [embed] });
        }
      } catch (err){
        interaction.editReply(`An error occurred while searching.\n\n${err}`)
      }
    }
}

module.exports = wikipedia;