import { ChatInputCommandInteraction, EmbedBuilder, SlashCommandBuilder } from "discord.js";
import { MediaWikiClient } from '../mediawiki';

const pageSources = {
    'cittadeldank': {
        url: 'https://wiki.cittadeldank.it',
        name: 'Città del Dank'
    }
}

const pageSourcesAuto = [
    'cittadeldank'
];

const data = new SlashCommandBuilder()
    .setName('wiki')
    .setDescription('Mostra la pagina wiki di un argomento')
    .addStringOption(o => o.setName('p')
        .setDescription('Il nome della pagina')
        .setRequired(true)
    )
    .addStringOption(o => o.setName('source')
        .setDescription('Dove guardare')
        .addChoices([
            {name: 'Città del Dank', value: 'cittadeldank'},
            {name: 'Automatico', value: 'auto'}
        ])
        .setRequired(false)
    );

async function fetchPageFromSite(siteId: string, pageName: string) {
    const { name: siteName, url: siteUrl } = pageSources[siteId];
    const mwClient = new MediaWikiClient(siteUrl);
    const pageData = await mwClient.getPage(pageName);
    return pageData;
}

async function execute (interaction: ChatInputCommandInteraction) {
    await interaction.deferReply();

    let siteChoice = interaction.options.getString('source') ?? 'auto';
    const pageName = interaction.options.getString('p');
    let pageData = null;
    if (siteChoice === 'auto') {
        for (let site of pageSourcesAuto) {
            pageData = await fetchPageFromSite(site, pageName);
            if (pageData) break;
        }
    } else {
        pageData = await fetchPageFromSite(siteChoice, pageName);
    }
    
    if (pageData) {
        const pageEmbed = new EmbedBuilder()
        .setTitle(pageData.title)
        .setURL(pageData.url)
        .setDescription(pageData.content)
        .setFooter({
            text: `Informazioni da ${pageData.origin}`
        });

        await interaction.followUp({
            embeds: [pageEmbed]
        });
    } else {
        await interaction.followUp({
            content: `Pagina **${pageName}** non trovata`
        });
    }
    
}

export default { data, execute };