const apiUrls = [
    {
        url: '/sonarr-hs-series',
        name: 'hidden-sea',
        domain: 'sonarr-hs',
    },
    {
        url: '/sonarr-ag-series',
        name: 'ancient-grove',
        domain: 'sonarr-ag',
    },
    {
        url: '/sonarr-bs-series',
        name: 'bold-silence',
        domain: 'sonarr-bs',
    },
    {
        url: '/sonarr-fd-series',
        name: 'frosty-darkness',
        domain: 'sonarr-fd',
    },
    {
        url: '/sonarr-rs-series',
        name: 'smooth-canyon [4K]',
        domain: 'sonarr.srvr.no',
    },
    {
        url: '/radarr-hs-movies',
        name: 'hidden-sea',
        domain: 'radarr-hs',
    },
    {
        url: '/radarr-ag-movies',
        name: 'ancient-grove',
        domain: 'radarr-ag',
    },
    {
        url: '/radarr-bs-movies',
        name: 'bold-silence',
        domain: 'radarr-bs',
    },
    {
        url: '/radarr-fd-movies',
        name: 'frosty-darkness',
        domain: 'radarr-fd',
    },
];

let media = [];

function removeMessage()
{
    const message = document.querySelector('#status-message');
    if (message) {
        message.remove();
    }
}

/**
 * For use with Array.prototype.map to map a series/movie to a row.
 * 
 * @param {Object} mediaItem 
 * @returns Array
 */
const editionRegex = /\{edition-(.+)\}$/g;
function mediaToRow(mediaItem) {
    let { title, mediaType, movieFile, year, server, folderName } = mediaItem;

    let quality = '';
    if (movieFile) {
        quality = movieFile.quality.quality.name;
    }

    let size = 0;

    if (mediaItem.sizeOnDisk) {
        size = mediaItem.sizeOnDisk;
    } else if (mediaItem.statistics && mediaItem.statistics.sizeOnDisk) {
        size = mediaItem.statistics.sizeOnDisk;
    }

    if (editionRegex.test(folderName)) {
        const match = folderName.match(editionRegex);
        const edition = match[0].replace('{edition-', '').replace('}', '');
        title += ` [${edition}]`;
    }

    return [
        title,
        mediaType,
        quality,
        year,
        size,
        server,
    ];
}

function humanFileSize(input) {
    if (input <= 0) {
        return '0 B';
    }

    const i = Math.floor(Math.log(input) / Math.log(1024));
    return (input / Math.pow(1024, i)).toFixed(2) * 1 + ' ' + ['B', 'kB', 'MB', 'GB', 'TB'][i];
}

let dataTbl = null;
let documentTableCopy = null;
function addDataTable(rows)
{
    const tblData = {
        headings: [
            'Series/Movie name',
            'Type',
            'Quality',
            'Year',
            'Size on disk',
            'Server',
        ],
        data: rows,
    };

    let tbl = document.querySelector('#media-table');
    if (!documentTableCopy) {
        documentTableCopy = tbl.cloneNode(true);
    }

    const checkDatatableWrapper = document.querySelector('.datatable-wrapper');
    if (checkDatatableWrapper) {
        checkDatatableWrapper.insertAdjacentElement('afterend', documentTableCopy);
        checkDatatableWrapper.remove();

        tbl = document.querySelector('#media-table');
    }

    const dataTblConfig = {
        searchable: true,
        fixedHeight: false,
        perPage: 100,
        perPageSelect: [25, 50, 100, 250, 500, 750, 1000],
        data: tblData,
        layout: {
            top: '{search}{select}',
            bottom: '{pager}{info}',
        },
        columns: [
            {
                select: [tblData.headings.indexOf('Size on disk')],
                render: function(data, cell, row) {
                    if (typeof data !== 'number') {
                        data = parseInt(data, 10);
                    }

                    return humanFileSize(data);
                }
            },
            {
                // Resolve based on the heading, since we might shift it from time to time.
                select: [tblData.headings.indexOf('Server')],
                render: function(data, cell, row) {
                    const [name, domain, slug, id] = data.split('|');
                    
                    let url = `https://${domain}`;

                    if (!domain.includes('srvr.no')) {
                        url += '.decicus.com';
                    }

                    if (domain.includes('sonarr')) {
                        url += `/series/${slug}`;
                    }
                    else {
                        url += `/movie/${id}`;
                    }

                    return `<a href="${url}" target="_blank">${name}</a>`;
                },
            }
        ],
    };

    removeMessage();

    if (dataTbl) {
        dataTbl.rows.remove();
    }

    dataTbl = new simpleDatatables.DataTable(tbl, dataTblConfig);
    dataTbl.on('datatable.init', function() {
        const search = document.querySelector('.datatable-search input');
        
        if (search) {
            search.focus();
        }
    });

    // try {
    //     dataTbl.refresh();
    // }
    // catch (err) {
    //     console.error(err);
    // }
}

async function apiFetch(apiUrl)
{
    try {
        const response = await fetch(apiUrl.url);
        let json = await response.json();

        json.map((item) => {
            item.server = `${apiUrl.name}|${apiUrl.domain}|${item.titleSlug}|${item.tmdbId || item.id}`;
            item.mediaType = apiUrl.url.includes('sonarr') ? 'Series' : 'Movie';

            return item;
        });

        return json;
    }
    catch (err) {
        const element = document.createElement('p');
        element.textContent = `Error fetching data from ${apiUrl.url}: ${err.message}`;
        errors.appendChild(element);

        console.error(err);
    }

    return [];
}

async function initial()
{
    media = [];
    const errors = document.querySelector('#errors');
    
    const refreshBtn = document.querySelector('#refresh-button');
    let icon = null;
    if (refreshBtn) {
        icon = refreshBtn.querySelector('.fas');
        refreshBtn.disabled = true;
        icon.classList.add('fa-spin');
    }

    let promises = [];
    for (const apiUrl of apiUrls) {
        promises.push(apiFetch(apiUrl));
    }

    media = await Promise.all(promises);
    media = media.flat();
    media = media.sort((a, b) => {
        return a.sortTitle.localeCompare(b.sortTitle);
    });

    let rows = media.map(mediaToRow);

    addDataTable(rows);

    const store = {
        timestamp: Date.now(),
        media,
    };

    const lastUpdated = document.querySelector('#last-updated');
    lastUpdated.textContent = `Last updated: ${new Date(store.timestamp).toLocaleString()}`;

    localStorage.setItem('cache', LZString.compress(JSON.stringify(store)));

    if (refreshBtn && icon) {
        icon.classList.remove('fa-spin');
        refreshBtn.disabled = false;
    }
}

window.addEventListener('DOMContentLoaded', function() {
    const cache = localStorage.getItem('cache');
    if (cache) {
        const { timestamp, media } = JSON.parse(LZString.decompress(cache));
        let rows = media.map(mediaToRow);
        addDataTable(rows);

        const lastUpdated = document.querySelector('#last-updated');
        lastUpdated.textContent = `Last updated: ${new Date(timestamp).toLocaleString()}`;
    }

    const refreshBtn = document.querySelector('#refresh-button');
    if (refreshBtn) {
        refreshBtn.addEventListener('click', async function() {
            // I don't think this is necessary, but ayyy lmao
            if (refreshBtn.disabled) {
                return;
            }

            try {
                await initial();
            }
            catch (err) {
                console.error(err);
                icon.classList.remove('fa-spin');
                refreshBtn.disabled = false;
            }
        });
    }

    initial();
});