const { div, h2, p, section, button, form, a, span, textarea, br, input, label, select, option, img, hr, table, tr, th, td } = require("../server/node_modules/hyperaxe");
const { template, i18n } = require('./main_views');
const moment = require("../server/node_modules/moment");
const { config } = require('../server/SSB_server.js');
const { renderUrl } = require('../backend/renderUrl');

const userId = config.keys.id;

const renderCardField = (labelText, value) =>
  div({ class: 'card-field' },
    span({ class: 'card-label' }, labelText),
    span({ class: 'card-value' }, ...renderUrl(value))
  );

exports.marketView = async (items, filter, itemToEdit = null) => {
    const list = Array.isArray(items) ? items : [];
    let title = i18n.marketAllSectionTitle;

    switch (filter) {
        case 'mine':
            title = i18n.marketMineSectionTitle;
            break;
        case 'create':
            title = i18n.marketCreateSectionTitle;
            break;
        case 'edit':
            title = i18n.marketUpdateSectionTitle;
            break;
    }

    let filtered = [];
    switch (filter) {
        case 'all':         filtered = list; break;
        case 'mine':        filtered = list.filter(e => e.seller === userId); break;
        case 'exchange':    filtered = list.filter(e => e.item_type === 'exchange' && e.status === 'FOR SALE'); break;
        case 'auctions':    filtered = list.filter(e => e.item_type === 'auction' && e.status === 'FOR SALE'); break;
        case 'new':         filtered = list.filter(e => e.item_status === 'NEW' && e.status === 'FOR SALE'); break;
        case 'used':        filtered = list.filter(e => e.item_status === 'USED' && e.status === 'FOR SALE'); break;
        case 'broken':      filtered = list.filter(e => e.item_status === 'BROKEN' && e.status === 'FOR SALE'); break;
        case 'for sale':    filtered = list.filter(e => e.status === 'FOR SALE'); break;
        case 'sold':        filtered = list.filter(e => e.status === 'SOLD'); break;
        case 'discarded':   filtered = list.filter(e => e.status === 'DISCARDED'); break;
        case 'recent':
            const oneDayAgo = moment().subtract(1, 'days').toISOString();
            filtered = list.filter(e => e.status === 'FOR SALE' && e.createdAt >= oneDayAgo);
            break;
        default: break;
    }
    filtered = filtered.sort((a, b) => new Date(b.createdAt) - new Date(a.createdAt));

    return template(
        title,
        section(
            div({ class: "tags-header" },
                h2(i18n.marketTitle),
                p(i18n.marketDescription)
            ),
            div({ class: "filters" },
                form({ method: "GET", action: "/market" },
                    button({ type: "submit", name: "filter", value: "all", class: filter === 'all' ? 'filter-btn active' : 'filter-btn' }, i18n.marketFilterAll),
                    button({ type: "submit", name: "filter", value: "mine", class: filter === 'mine' ? 'filter-btn active' : 'filter-btn' }, i18n.marketFilterMine),
                    button({ type: "submit", name: "filter", value: "exchange", class: filter === 'exchange' ? 'filter-btn active' : 'filter-btn' }, i18n.marketFilterItems),
                    button({ type: "submit", name: "filter", value: "auctions", class: filter === 'auctions' ? 'filter-btn active' : 'filter-btn' }, i18n.marketFilterAuctions),
                    button({ type: "submit", name: "filter", value: "new", class: filter === 'new' ? 'filter-btn active' : 'filter-btn' }, i18n.marketFilterNew),
                    button({ type: "submit", name: "filter", value: "used", class: filter === 'used' ? 'filter-btn active' : 'filter-btn' }, i18n.marketFilterUsed),
                    button({ type: "submit", name: "filter", value: "broken", class: filter === 'broken' ? 'filter-btn active' : 'filter-btn' }, i18n.marketFilterBroken),
                    button({ type: "submit", name: "filter", value: "for sale", class: filter === 'for sale' ? 'filter-btn active' : 'filter-btn' }, i18n.marketFilterForSale),
                    button({ type: "submit", name: "filter", value: "sold", class: filter === 'sold' ? 'filter-btn active' : 'filter-btn' }, i18n.marketFilterSold),
                    button({ type: "submit", name: "filter", value: "discarded", class: filter === 'discarded' ? 'filter-btn active' : 'filter-btn' }, i18n.marketFilterDiscarded),
                    button({ type: "submit", name: "filter", value: "recent", class: filter === 'recent' ? 'filter-btn active' : 'filter-btn' }, i18n.marketFilterRecent),
                    button({ type: "submit", name: "filter", value: "create", class: "create-button" }, i18n.marketCreateButton)
                )
            )
        ),
        section(
            (filter === 'create' || filter === 'edit') ? (
                div({ class: "market-form" },
                    form({
                        action: filter === 'edit' ? `/market/update/${encodeURIComponent(itemToEdit.id)}` : "/market/create",
                        method: "POST",
                        enctype: "multipart/form-data"
                    },
                        label(i18n.marketItemType), br(),
                        select({ name: "item_type", id: "item_type", required: true },
                            option({ value: "auction", selected: itemToEdit?.item_type === 'auction' ? true : false }, "Auction"),
                            option({ value: "exchange", selected: itemToEdit?.item_type === 'exchange' ? true : false }, "Exchange")
                        ), br(), br(),
                        label(i18n.marketItemTitle), br(),
                        input({ type: "text", name: "title", id: "title", value: itemToEdit?.title || '', required: true }), br(), br(),
                        label(i18n.marketItemDescription), br(),
                        textarea({ name: "description", id: "description", placeholder: i18n.marketItemDescriptionPlaceholder, rows: "6", innerHTML: itemToEdit?.description || '', required: true }), br(), br(),
                        label(i18n.marketCreateFormImageLabel), br(),
                        input({ type: "file", name: "image", id: "image", accept: "image/*" }), br(), br(),
                        label(i18n.marketItemStatus), br(),
                        select({ name: "item_status", id: "item_status" },
                            option({ value: "BROKEN", selected: itemToEdit?.item_status === 'BROKEN' ? true : false }, "BROKEN"),
                            option({ value: "USED", selected: itemToEdit?.item_status === 'USED' ? true : false }, "USED"),
                            option({ value: "NEW", selected: itemToEdit?.item_status === 'NEW' ? true : false }, "NEW")
                        ), br(), br(),
                        label(i18n.marketItemStock), br(),
                        input({
                            type: "number",
                            name: "stock",
                            id: "stock",
                            value: itemToEdit?.stock || 1,
                            required: true,
                            min: "1",
                            step: "1"
                        }), br(), br(),
                        label(i18n.marketItemPrice), br(),
                        input({ type: "number", name: "price", id: "price", value: itemToEdit?.price || '', required: true, step: "0.000001", min: "0.000001" }), br(), br(),
                        label(i18n.marketItemTags), br(),
                        input({ type: "text", name: "tags", id: "tags", placeholder: i18n.marketItemTagsPlaceholder, value: itemToEdit?.tags?.join(', ') || '' }), br(), br(),
                        label(i18n.marketItemDeadline), br(),
                        input({
                            type: "datetime-local",
                            name: "deadline",
                            id: "deadline",
                            required: true,
                            min: moment().format("YYYY-MM-DDTHH:mm"),
                            value: itemToEdit?.deadline ? moment(itemToEdit.deadline).format("YYYY-MM-DDTHH:mm") : ''
                        }), br(), br(),
                        label(i18n.marketItemIncludesShipping), br(),
                        input({ type: "checkbox", name: "includesShipping", id: "includesShipping", checked: itemToEdit?.includesShipping }), br(), br(),
                        button({ type: "submit" }, filter === 'edit' ? i18n.marketUpdateButton : i18n.marketCreateButton)
                    )
                )
            ) : (
                div({ class: "market-grid" },
                    filtered.length > 0
                        ? filtered.map((item, index) =>
                            div({ class: "market-item" },
                                div({ class: "market-card left-col" },
                                    form({ method: "GET", action: `/market/${encodeURIComponent(item.id)}` },
                                        button({ class: "filter-btn", type: "submit" }, i18n.viewDetails)
                                    ),
                                    h2({ class: "market-card type" }, `${i18n.marketItemType}: ${item.item_type.toUpperCase()}`),
                                    h2(item.title),
                                    renderCardField(`${i18n.marketItemStatus}:`, item.status),
                                    item.deadline ? renderCardField(`${i18n.marketItemAvailable}:`, moment(item.deadline).format('YYYY/MM/DD HH:mm:ss')) : null,
                                    br, br,
                                    div({ class: "market-card image" },
                                        item.image
                                            ? img({ src: `/blob/${encodeURIComponent(item.image)}` })
                                            : img({ src: '/assets/images/default-market.png', alt: item.title })
                                    ),
                                    p(...renderUrl(item.description)),
                                    item.tags && item.tags.filter(Boolean).length
                                        ? div({ class: 'card-tags' }, item.tags.filter(Boolean).map(tag =>
                                            a({ class: "tag-link", href: `/search?query=%23${encodeURIComponent(tag)}` },
                                                `#${tag}`)
                                        ))
                                        : null,
                                ),
                                div({ class: "market-card right-col" },
                                    renderCardField(`${i18n.marketItemStock}:`, item.stock > 0 ? item.stock : i18n.marketOutOfStock),
                                    div({ class: "market-card price" },
                                        renderCardField(`${i18n.marketItemPrice}:`, `${item.price} ECO`),
                                    ),
                                    renderCardField(`${i18n.marketItemCondition}:`, item.item_status),
                                    renderCardField(`${i18n.marketItemIncludesShipping}:`, item.includesShipping ? i18n.YESLabel : i18n.NOLabel),
                                    renderCardField(`${i18n.marketItemSeller}:`),
                                    div({ class: "market-card image" },
                                        div({ class: 'card-field' },
                                            a({ class: 'user-link', href: `/author/${encodeURIComponent(item.seller)}` }, item.seller)
                                        )),
                                    item.item_type === 'auction' && item.auctions_poll.length > 0
                                        ? div({ class: "auction-info" },
                                            p({ class: "auction-bid-text" }, i18n.marketAuctionBids),
                                            table({ class: 'auction-bid-table' },
                                                tr(
                                                    th(i18n.marketAuctionBidTime),
                                                    th(i18n.marketAuctionUser),
                                                    th(i18n.marketAuctionBidAmount)
                                                ),
                                                item.auctions_poll.map(bid => {
                                                    const [userId, bidAmount, bidTime] = bid.split(':');
                                                    return tr(
                                                        td(moment(bidTime).format('YYYY-MM-DD HH:mm:ss')),
                                                        td(a({ href: `/author/${encodeURIComponent(userId)}` }, userId)),
                                                        td(`${parseFloat(bidAmount).toFixed(6)} ECO`)
                                                    );
                                                })
                                            )
                                        )
                                        : null,
                                    div({ class: "market-card buttons" },
                                        (item.seller === userId) ? [
                                            form({ method: "POST", action: `/market/delete/${encodeURIComponent(item.id)}` },
                                                button({ class: "delete-btn", type: "submit" }, i18n.marketActionsDelete)
                                            ),
                                            (item.status !== 'SOLD' && item.status !== 'DISCARDED' && item.auctions_poll.length === 0)
                                                ? form({ method: "GET", action: `/market/edit/${encodeURIComponent(item.id)}` },
                                                    button({ class: "update-btn", type: "submit" }, i18n.marketActionsUpdate)
                                                )
                                                : null,
                                            (item.status === 'FOR SALE')
                                                ? form({ method: "POST", action: `/market/sold/${encodeURIComponent(item.id)}` },
                                                    button({ class: "sold-btn", type: "submit" }, i18n.marketActionsSold)
                                                )
                                                : null
                                        ] : [
                                            (item.status !== 'SOLD' && item.status !== 'DISCARDED' && item.item_type === 'auction')
                                                ? form({ method: "POST", action: `/market/bid/${encodeURIComponent(item.id)}` },
                                                    input({ type: "number", name: "bidAmount", step: "0.000001", min: "0.000001", placeholder: i18n.marketYourBid, required: true }),
                                                    br,
                                                    button({ class: "buy-btn", type: "submit" }, i18n.marketPlaceBidButton)
                                                )
                                                : null,
                                            (item.status === 'FOR SALE' && item.item_type !== 'auction' && item.seller !== userId)
                                                ? form({ method: "POST", action: `/market/buy/${encodeURIComponent(item.id)}` },
                                                    input({ type: "hidden", name: "buyerId", value: userId }),
                                                    button({ class: "buy-btn", type: "submit" }, i18n.marketActionsBuy)
                                                )
                                                : null
                                        ]
                                    )
                                )
                            )
                        )
                        : p(i18n.marketNoItems)
                )
            )
        )
    );
};

exports.singleMarketView = async (item, filter) => {
    return template(
        item.title,
        section(
            div({ class: "filters" },
                form({ method: 'GET', action: '/market' },
                    button({ type: 'submit', name: 'filter', value: 'all', class: filter === 'all' ? 'filter-btn active' : 'filter-btn' }, i18n.marketFilterAll),
                    button({ type: 'submit', name: 'filter', value: 'mine', class: filter === 'mine' ? 'filter-btn active' : 'filter-btn' }, i18n.marketFilterMine),
                    button({ type: 'submit', name: 'filter', value: 'exchange', class: filter === 'exchange' ? 'filter-btn active' : 'filter-btn' }, i18n.marketFilterItems),
                    button({ type: 'submit', name: 'filter', value: 'auctions', class: filter === 'auctions' ? 'filter-btn active' : 'filter-btn' }, i18n.marketFilterAuctions),
                    button({ type: 'submit', name: 'filter', value: 'new', class: filter === 'new' ? 'filter-btn active' : 'filter-btn' }, i18n.marketFilterNew),
                    button({ type: 'submit', name: 'filter', value: 'used', class: filter === 'used' ? 'filter-btn active' : 'filter-btn' }, i18n.marketFilterUsed),
                    button({ type: 'submit', name: 'filter', value: 'broken', class: filter === 'broken' ? 'filter-btn active' : 'filter-btn' }, i18n.marketFilterBroken),
                    button({ type: 'submit', name: 'filter', value: 'for sale', class: filter === 'for sale' ? 'filter-btn active' : 'filter-btn' }, i18n.marketFilterForSale),
                    button({ type: 'submit', name: 'filter', value: 'sold', class: filter === 'sold' ? 'filter-btn active' : 'filter-btn' }, i18n.marketFilterSold),
                    button({ type: 'submit', name: 'filter', value: 'discarded', class: filter === 'discarded' ? 'filter-btn active' : 'filter-btn' }, i18n.marketFilterDiscarded),
                    button({ type: 'submit', name: 'filter', value: 'recent', class: filter === 'recent' ? 'filter-btn active' : 'filter-btn' }, i18n.marketFilterRecent),
                    button({ type: 'submit', name: 'filter', value: 'create', class: "create-button" }, i18n.marketCreateButton)
                )
            ),
            div({ class: "tags-header" },
                h2(item.title),
                renderCardField(`${i18n.marketItemType}:`, `${item.item_type.toUpperCase()}`),
                renderCardField(`${i18n.marketItemStatus}:`, item.status),
                renderCardField(`${i18n.marketItemCondition}:`, item.item_status),
                br,
                div({ class: "market-item image" },
                    item.image
                        ? img({ src: `/blob/${encodeURIComponent(item.image)}` })
                        : img({ src: '/assets/images/default-market.png', alt: item.title })
                ),
                renderCardField(`${i18n.marketItemDescription}:`),
                p(...renderUrl(item.description)),
                item.tags && item.tags.length
                    ? div({ class: 'card-tags' },
                        item.tags.map(tag =>
                            a({ href: `/search?query=%23${encodeURIComponent(tag)}`, class: "tag-link" }, `#${tag}`)
                        )
                    )
                    : null,
                br,
                renderCardField(`${i18n.marketItemPrice}:`),
                br,
                div({ class: 'card-label' },
                    h2(`${item.price} ECO`),
                ),
                br,
                renderCardField(`${i18n.marketItemStock}:`, item.stock > 0 ? item.stock : i18n.marketOutOfStock),
                renderCardField(`${i18n.marketItemIncludesShipping}:`, `${item.includesShipping ? i18n.YESLabel : i18n.NOLabel}`),
                item.deadline ? renderCardField(`${i18n.marketItemAvailable}:`, `${moment(item.deadline).format('YYYY/MM/DD HH:mm:ss')}`) : null,
                renderCardField(`${i18n.marketItemSeller}:`),
                br,
                div({ class: 'card-field' },
                    a({ class: 'user-link', href: `/author/${encodeURIComponent(item.seller)}` }, item.seller)
                )
            ),
            item.item_type === 'auction'
                ? div({ class: "auction-info" },
                    p({ class: "auction-bid-text" }, i18n.marketAuctionBids),
                    table({ class: 'auction-bid-table' },
                        tr(
                            th(i18n.marketAuctionBidTime),
                            th(i18n.marketAuctionUser),
                            th(i18n.marketAuctionBidAmount)
                        ),
                        item.auctions_poll.map(bid => {
                            const [userId, bidAmount, bidTime] = bid.split(':');
                            return tr(
                                td(moment(bidTime).format('YYYY-MM-DD HH:mm:ss')),
                                td(a({ href: `/author/${encodeURIComponent(userId)}` }, userId)),
                                td(`${parseFloat(bidAmount).toFixed(6)} ECO`)
                            );
                        })
                    ),
                    item.status !== 'SOLD' && item.status !== 'DISCARDED'
                        ? form({ method: "POST", action: `/market/bid/${encodeURIComponent(item.id)}` },
                            input({ type: "number", name: "bidAmount", step: "0.000001", min: "0.000001", placeholder: i18n.marketYourBid, required: true }),
                            br(),
                            button({ class: "buy-btn", type: "submit" }, i18n.marketPlaceBidButton)
                        )
                        : null
                )
                : null,
		div({ class: "market-item actions" },
		    (item.seller === userId && item.status !== 'SOLD' && item.status !== 'DISCARDED' && item.item_type !== 'auction') ? [
			form({ method: "POST", action: `/market/delete/${encodeURIComponent(item.id)}` },
			    button({ class: "delete-btn", type: "submit" }, i18n.marketActionsDelete)
			),
			form({ method: "GET", action: `/market/edit/${encodeURIComponent(item.id)}` },
			    button({ class: "update-btn", type: "submit" }, i18n.marketActionsUpdate)
			),
			(item.status === 'FOR SALE')
			    ? form({ method: "POST", action: `/market/sold/${encodeURIComponent(item.id)}` },
				button({ class: "sold-btn", type: "submit" }, i18n.marketActionsSold)
			    )
			    : null
		    ] : null,
		    (item.status === 'FOR SALE' && item.item_type !== 'auction' && item.seller !== userId)
			? form({ method: "POST", action: `/market/buy/${encodeURIComponent(item.id)}` },
			    button({ class: "buy-btn", type: "submit" }, i18n.marketActionsBuy)
			)
			: null
		)
        )
    );
};