360 lines
13 KiB
Swift
360 lines
13 KiB
Swift
import Elementary
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import Foundation
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import Infrastructure
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import Persistence
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/// The search results screen: the matching listings beside the filter rail.
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struct SearchPage {
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// MARK: Properties
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let analytics: Analytics?
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let assetVersion: String?
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let locale: Locale
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/// The page of listings shown.
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let listings: [Listing]
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/// The number of listings matching the search, across every page.
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let matchCount: Int
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/// The page shown and the number of pages.
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let pages: (current: Int, total: Int)
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/// The search the screen answers.
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let parameters: SearchParameters
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/// Every publisher a listing can be filtered by.
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let publishers: [String]
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/// The number of shops the matching listings come from.
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let shopCount: Int
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/// The signed-in viewer, or `nil` when signed out.
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let viewer: Viewer?
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// MARK: Initializers
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/// Creates the search results screen for a search and the listings matching it.
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/// - Parameters:
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/// - parameters: the search the screen answers.
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/// - matches: every listing matching the search; the screen shows the page the parameters ask for.
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/// - publishers: every publisher a listing can be filtered by.
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/// - viewer: the signed-in viewer, or `nil` (the default) when signed out.
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/// - assetVersion: the version token appended to the page's asset URLs, or `nil` (the default) to leave them unversioned.
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/// - analytics: the analytics tracker embedded in the document head, or `nil` (the default) to omit it.
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init(
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parameters: SearchParameters,
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matches: [Listing],
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publishers: [String],
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viewer: Viewer? = nil,
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assetVersion: String? = nil,
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analytics: Analytics? = nil
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) {
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self.viewer = viewer
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let slice = Pagination.slice(
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matches,
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page: parameters.page,
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size: SearchParameters.pageSize
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)
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self.analytics = analytics
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self.assetVersion = assetVersion
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self.listings = slice.items
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self.locale = .init(identifier: "en")
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self.matchCount = matches.count
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self.pages = (slice.current, slice.total)
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self.parameters = parameters
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self.publishers = publishers
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self.shopCount = Set(matches.map(\.shop.slug)).count
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}
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}
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// MARK: - Page
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extension SearchPage: Page {
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// MARK: Constants
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/// The path the page is served at.
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static let path = String.Route.search
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/// The identifier tying the sort select to the filter form.
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private static let formID = "filters"
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// MARK: Computed
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var content: some HTML {
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SiteLayout(
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active: formats.count == 1 ? formats.first : nil,
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query: parameters.value(.query),
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viewer: viewer
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) {
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div(.class("page search")) {
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div(.class("search__head")) {
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div(.class("search__heading")) {
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p(.class("type-eyebrow")) {
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formats.isEmpty ? "All formats" : formats.map(\.label).joined(separator: " · ")
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}
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h1(.class("type-h1")) {
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heading
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}
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p(.class("type-body-sm search__count")) {
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matchCount == 1 ? "1 listing" : "\(matchCount) listings"
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shopCount == 1 ? " from 1 shop" : " from \(shopCount) shops"
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}
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}
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SortSelect(
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form: Self.formID,
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selected: parameters.filter.sort
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)
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}
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div(.class("search__body")) {
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filters
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div(.class("search__results")) {
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if !parameters.pills.isEmpty {
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ul(.class("search__pills")) {
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for pill in parameters.pills {
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li {
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a(
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.class("pill pill--active"),
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.href(pill.removed.path(Self.path)),
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.custom(
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name: "aria-label",
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value: "Remove filter: \(pill.label)"
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)
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) {
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pill.label
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span(.custom(name: "aria-hidden", value: "true")) {
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" ×"
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}
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}
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}
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}
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}
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}
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if listings.isEmpty {
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div(.class("empty")) {
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h2(.class("type-panel")) {
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"No listings match"
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}
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p(.class("type-body-sm")) {
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"Try fewer filters, or let listings ship from anywhere."
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}
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a(
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.class("button button--outline"),
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.href(SearchParameters().setting(.shipsFrom, to: "anywhere").path(Self.path))
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) {
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"Clear all filters"
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}
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}
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} else {
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div(.class("card-grid card-grid--search")) {
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for listing in listings {
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ListingCard(listing, context: .search)
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}
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}
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}
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Pagination(
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current: pages.current,
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total: pages.total
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) { [parameters] in
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parameters.setting(.page, to: "\($0)").path(Self.path)
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}
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}
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}
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}
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}
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}
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var scripts: [any Asset] {
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[StaticFile.shared]
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}
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var stylesheets: [any Asset] {
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[StaticFile.shared, StaticFile.search]
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}
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var title: String {
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"\(heading) — CCN"
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}
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}
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// MARK: - Helpers
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private extension SearchPage {
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// MARK: Computed
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/// The filter rail: a plain `GET` form inside a disclosure, which the stylesheet keeps open on desktop.
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var filters: some HTML {
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details(.class("filters")) {
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Elementary.summary(.class("filters__toggle button button--outline")) {
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Icon(.filter, size: 15)
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parameters.pills.isEmpty ? "Filters" : "Filters · \(parameters.pills.count)"
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}
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form(
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.class("filters__form"),
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.id(Self.formID),
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.action(Self.path),
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.method(.get)
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) {
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div(.class("filters__head")) {
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h2(.class("type-eyebrow filters__title")) {
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"Filters"
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}
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a(
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.class("filters__clear"),
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.href(Self.path)
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) {
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"Clear all"
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}
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}
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if let query = parameters.value(.query) {
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input(
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.type(.hidden),
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.name(SearchParameters.Name.query.rawValue),
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.value(query)
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)
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}
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group("Format") {
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ForEach(Format.allCases) { format in
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checkbox(.format, value: format.rawValue, label: format.label)
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}
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}
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group("Grading") {
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checkbox(.grading, value: SearchParameters.Grading.slabbed.rawValue, label: "Slabbed (CGC, CBCS, PGX)")
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checkbox(.grading, value: SearchParameters.Grading.raw.rawValue, label: "Raw, seller-graded")
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div(.class("filters__range")) {
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field(.gradeMin, label: "Min", placeholder: "0.5", isLabelVisible: true)
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field(.gradeMax, label: "Max", placeholder: "10", isLabelVisible: true)
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}
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}
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group("Printing") {
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checkbox(.firstPrint, value: "1", label: "1st print only")
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}
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group("Publisher") {
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ForEach(publishers) { publisher in
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checkbox(.publisher, value: publisher, label: publisher)
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}
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}
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group("Price") {
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div(.class("filters__range")) {
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field(.priceMin, label: "Minimum price", placeholder: "€ min")
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span(.class("type-small")) {
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"to"
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}
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field(.priceMax, label: "Maximum price", placeholder: "€ max")
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}
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}
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group("Ships from") {
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div(.class("segmented")) {
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for region in ListingFilter.Region.allCases {
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label(.class("segmented__option")) {
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input(
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.type(.radio),
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.name(SearchParameters.Name.shipsFrom.rawValue),
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.value(region.rawValue)
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)
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.attributes(.checked, when: region == parameters.filter.shipsFrom)
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span {
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region == .anywhere ? "Anywhere" : region.rawValue.uppercased()
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}
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}
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}
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}
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span(.class("type-small")) {
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"Outside the EU, import VAT may apply."
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}
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}
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group("Key issues") {
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checkbox(.keys, value: "1", label: "Key issues only")
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}
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group("Seller") {
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checkbox(.offers, value: "1", label: "Accepts offers")
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checkbox(.verified, value: "1", label: "Verified shop")
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}
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button(
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.class("button button--dark button--block"),
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.type(.submit)
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) {
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"Apply filters"
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}
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}
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}
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}
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/// The formats the search is narrowed to.
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var formats: [Format] {
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parameters
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.values(.format)
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.compactMap(Format.init)
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}
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/// The screen's heading: the search text in quotes, else the one format searched, else every listing.
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var heading: String {
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if let query = parameters.value(.query) {
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return "“\(query)”"
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}
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return formats.count == 1 ? formats[0].label : "All listings"
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}
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// MARK: Methods
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/// A checkbox, ticked when the search carries its pair.
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func checkbox(
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_ name: SearchParameters.Name,
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value: String,
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label text: String
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) -> some HTML {
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label(.class("check")) {
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input(
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.type(.checkbox),
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.name(name.rawValue),
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.value(value)
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)
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.attributes(.checked, when: parameters.has(name, value: value))
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text
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}
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}
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/// A short text field, filled with the search's value for its name.
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func field(
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_ name: SearchParameters.Name,
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label text: String,
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placeholder: String,
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isLabelVisible: Bool = false
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) -> some HTML {
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label(.class("filters__field")) {
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span(.class(isLabelVisible ? "type-small" : "visually-hidden")) {
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text
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}
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input(
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.class("input input--sm"),
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.type(.text),
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.name(name.rawValue),
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.value(parameters.value(name) ?? ""),
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.placeholder(placeholder),
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.custom(name: "inputmode", value: "decimal")
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)
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}
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}
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/// A titled group of filter controls.
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func group(
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_ title: String,
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@HTMLBuilder content: () -> some HTML
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) -> some HTML {
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fieldset(.class("filters__group")) {
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legend(.class("type-label")) {
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title
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}
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content()
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}
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}
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}
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