Add gallery date jump navigation

EhPanda/App/Generated/Strings.swift

@@ -1892,6 +1892,24 @@ internal enum L10n {
         internal static let success = L10n.tr("Localizable", "hud.title.success", fallback: "Success")
       }
     }
+    internal enum DateJumpView {
+      internal enum Button {
+        /// Seek Newer
+        internal static let seekNewer = L10n.tr("Localizable", "date_jump_view.button.seek_newer", fallback: "Seek Newer")
+        /// Seek Older
+        internal static let seekOlder = L10n.tr("Localizable", "date_jump_view.button.seek_older", fallback: "Seek Older")
+      }
+      internal enum Footer {
+        /// Seek to galleries around the selected date.
+        internal static let seekAroundDate = L10n.tr("Localizable", "date_jump_view.footer.seek_around_date", fallback: "Seek to galleries around the selected date.")
+      }
+      internal enum Title {
+        /// Date
+        internal static let date = L10n.tr("Localizable", "date_jump_view.title.date", fallback: "Date")
+        /// Date Jump
+        internal static let dateJump = L10n.tr("Localizable", "date_jump_view.title.date_jump", fallback: "Date Jump")
+      }
+    }
     internal enum JumpPageView {
       internal enum Button {
         /// Confirm
@@ -2160,6 +2178,8 @@ internal enum L10n {
     }
     internal enum ToolbarItem {
       internal enum Button {
+        /// Date Jump
+        internal static let dateJump = L10n.tr("Localizable", "toolbar_item.button.date_jump", fallback: "Date Jump")
         /// Filters
         internal static let filters = L10n.tr("Localizable", "toolbar_item.button.filters", fallback: "Filters")
         /// Jump page

EhPanda/App/Tools/Extensions/AlertKit_Extension.swift

@@ -77,3 +77,64 @@ private struct JumpPageAlert<Content: View>: View {
         .synchronize($isPresented, $manager.isPresented)
     }
 }
+
+struct DateJumpView: View {
+    let pageNumber: PageNumber
+    @Binding var selectedDate: Date
+    let jumpAction: (PageJumpDirection) -> Void
+
+    private var navigation: PageJumpNavigation? {
+        pageNumber.jumpNavigation
+    }
+    private var dateRange: ClosedRange<Date> {
+        navigation?.dateRange ?? Date.distantPast...Date.distantFuture
+    }
+    private var showsNewerButton: Bool {
+        navigation?.previousURL != nil
+    }
+    private var showsOlderButton: Bool {
+        navigation?.nextURL != nil
+    }
+
+    var body: some View {
+        NavigationView {
+            Form {
+                Section {
+                    DatePicker(
+                        L10n.Localizable.DateJumpView.Title.date,
+                        selection: $selectedDate,
+                        in: dateRange,
+                        displayedComponents: .date
+                    )
+                    .datePickerStyle(.graphical)
+                } footer: {
+                    Text(L10n.Localizable.DateJumpView.Footer.seekAroundDate)
+                }
+
+                Section {
+                    if showsNewerButton {
+                        Button {
+                            jumpAction(.newer)
+                        } label: {
+                            Label(L10n.Localizable.DateJumpView.Button.seekNewer, systemImage: "chevron.left")
+                        }
+                    }
+                    if showsOlderButton {
+                        Button {
+                            jumpAction(.older)
+                        } label: {
+                            Label(L10n.Localizable.DateJumpView.Button.seekOlder, systemImage: "chevron.right")
+                        }
+                    }
+                }
+            }
+            .navigationTitle(L10n.Localizable.DateJumpView.Title.dateJump)
+            .navigationBarTitleDisplayMode(.inline)
+        }
+        .onAppear {
+            if let navigation {
+                selectedDate = navigation.clampedDate(selectedDate)
+            }
+        }
+    }
+}

EhPanda/App/Tools/Parser.swift

@@ -1378,6 +1378,73 @@ extension Parser {
 
     // MARK: PageNumber
     static func parsePageNum(doc: HTMLDocument) -> PageNumber {
+        func parseScriptVariable(name: String) -> String? {
+            let escapedName = NSRegularExpression.escapedPattern(for: name)
+            let pattern = #"var\s+\#(escapedName)\s*=\s*["']([^"']*)["']\s*;"#
+            guard let regex = try? NSRegularExpression(pattern: pattern) else { return nil }
+
+            for script in doc.xpath("//script") {
+                guard let text = script.text else { continue }
+                let range = NSRange(text.startIndex..., in: text)
+                guard let match = regex.firstMatch(in: text, range: range),
+                      let valueRange = Range(match.range(at: 1), in: text)
+                else { continue }
+
+                return String(text[valueRange])
+            }
+            return nil
+        }
+        func parseScriptURL(name: String) -> URL? {
+            guard var value = parseScriptVariable(name: name)?.trimmingCharacters(in: .whitespacesAndNewlines),
+                  !value.isEmpty
+            else { return nil }
+            value = value
+                .replacingOccurrences(of: "&", with: "&")
+                .replacingOccurrences(of: "\\u0026", with: "&")
+
+            let baseURL = Defaults.URL.host
+            let parsedURL: URL?
+            if let url = URL(string: value), url.scheme != nil {
+                parsedURL = url
+            } else {
+                parsedURL = URL(string: value, relativeTo: baseURL)?.absoluteURL
+            }
+
+            guard let parsedURL else { return nil }
+            guard var components = URLComponents(url: parsedURL, resolvingAgainstBaseURL: false) else {
+                return parsedURL
+            }
+
+            let knownGalleryHosts = [
+                Defaults.URL.ehentai.host,
+                Defaults.URL.exhentai.host,
+                Defaults.URL.sexhentai.host
+            ]
+            .compactMap { $0?.lowercased() }
+
+            if let host = components.host?.lowercased(),
+               knownGalleryHosts.contains(host),
+               let baseComponents = URLComponents(url: baseURL, resolvingAgainstBaseURL: false)
+            {
+                components.scheme = baseComponents.scheme
+                components.host = baseComponents.host
+            }
+            return components.url
+        }
+        func parseScriptDate(name: String) -> Date? {
+            guard let value = parseScriptVariable(name: name), !value.isEmpty else { return nil }
+            return try? parseDate(time: value, format: "yyyy-MM-dd")
+        }
+        func parsePageJumpNavigation() -> PageJumpNavigation? {
+            let navigation = PageJumpNavigation(
+                previousURL: parseScriptURL(name: "prevurl"),
+                nextURL: parseScriptURL(name: "nexturl"),
+                minimumDate: parseScriptDate(name: "mindate"),
+                maximumDate: parseScriptDate(name: "maxdate")
+            )
+            return navigation.isEnabled ? navigation : nil
+        }
+
         var current = 0
         var maximum = 0
 
@@ -1402,9 +1469,16 @@ extension Parser {
                     break
                 }
 
-                return PageNumber(lastItemTimestamp: timestamp, isNextButtonEnabled: isEnabled)
+                return PageNumber(
+                    lastItemTimestamp: timestamp,
+                    isNextButtonEnabled: isEnabled,
+                    jumpNavigation: parsePageJumpNavigation()
+                )
             } else {
-                return PageNumber(isNextButtonEnabled: false)
+                return PageNumber(
+                    isNextButtonEnabled: false,
+                    jumpNavigation: parsePageJumpNavigation()
+                )
             }
         }
 
@@ -1418,7 +1492,11 @@ extension Parser {
                 maximum = num - 1
             }
         }
-        return PageNumber(current: current, maximum: maximum)
+        return PageNumber(
+            current: current,
+            maximum: maximum,
+            jumpNavigation: parsePageJumpNavigation()
+        )
     }
 
     // MARK: SortOrder

EhPanda/App/de.lproj/Localizable.strings

@@ -51,8 +51,15 @@
 // MARK: ToolbarItem
 "toolbar_item.button.filters" = "Filters";
 "toolbar_item.button.jump_page" = "Jump page";
+"toolbar_item.button.date_jump" = "Datumssprung";
 "toolbar_item.button.quick_search" = "Quick search";
 
+// MARK: DateJump
+"date_jump_view.title.date_jump" = "Datumssprung";
+"date_jump_view.title.date" = "Datum";
+"date_jump_view.footer.seek_around_date" = "Zu Galerien um das ausgewählte Datum springen.";
+"date_jump_view.button.seek_newer" = "Zu neueren springen";
+"date_jump_view.button.seek_older" = "Zu älteren springen";
 // MARK: JumpPage
 "jump_page_view.title.jump_page" = "Jump page";
 "jump_page_view.button.confirm" = "Confirm";

EhPanda/App/en.lproj/Localizable.strings

@@ -51,8 +51,15 @@
 // MARK: ToolbarItem
 "toolbar_item.button.filters" = "Filters";
 "toolbar_item.button.jump_page" = "Jump page";
+"toolbar_item.button.date_jump" = "Date Jump";
 "toolbar_item.button.quick_search" = "Quick search";
 
+// MARK: DateJump
+"date_jump_view.title.date_jump" = "Date Jump";
+"date_jump_view.title.date" = "Date";
+"date_jump_view.footer.seek_around_date" = "Seek to galleries around the selected date.";
+"date_jump_view.button.seek_newer" = "Seek Newer";
+"date_jump_view.button.seek_older" = "Seek Older";
 // MARK: JumpPage
 "jump_page_view.title.jump_page" = "Jump page";
 "jump_page_view.button.confirm" = "Confirm";

EhPanda/App/ja.lproj/Localizable.strings

@@ -51,8 +51,15 @@
 // MARK: ToolbarItem
 "toolbar_item.button.filters" = "フィルター";
 "toolbar_item.button.jump_page" = "ページジャンプ";
+"toolbar_item.button.date_jump" = "日付ジャンプ";
 "toolbar_item.button.quick_search" = "クイック検索";
 
+// MARK: DateJump
+"date_jump_view.title.date_jump" = "日付ジャンプ";
+"date_jump_view.title.date" = "日付";
+"date_jump_view.footer.seek_around_date" = "選択した日付付近のギャラリーへ移動します。";
+"date_jump_view.button.seek_newer" = "新しい方へ移動";
+"date_jump_view.button.seek_older" = "古い方へ移動";
 // MARK: JumpPage
 "jump_page_view.title.jump_page" = "ページジャンプ";
 "jump_page_view.button.confirm" = "確認";

EhPanda/App/ko.lproj/Localizable.strings

@@ -51,8 +51,15 @@
 // MARK: ToolbarItem
 "toolbar_item.button.filters" = "필터";
 "toolbar_item.button.jump_page" = "페이지 이동";
+"toolbar_item.button.date_jump" = "날짜 이동";
 "toolbar_item.button.quick_search" = "빠른 검색";
 
+// MARK: DateJump
+"date_jump_view.title.date_jump" = "날짜 이동";
+"date_jump_view.title.date" = "날짜";
+"date_jump_view.footer.seek_around_date" = "선택한 날짜 근처의 갤러리로 이동합니다.";
+"date_jump_view.button.seek_newer" = "새 항목으로 이동";
+"date_jump_view.button.seek_older" = "오래된 항목으로 이동";
 // MARK: JumpPage
 "jump_page_view.title.jump_page" = "페이지 이동";
 "jump_page_view.button.confirm" = "확인";

EhPanda/App/zh-Hans.lproj/Localizable.strings

@@ -51,8 +51,15 @@
 // MARK: ToolbarItem
 "toolbar_item.button.filters" = "筛选";
 "toolbar_item.button.jump_page" = "页码跳转";
+"toolbar_item.button.date_jump" = "日期跳转";
 "toolbar_item.button.quick_search" = "快速搜索";
 
+// MARK: DateJump
+"date_jump_view.title.date_jump" = "日期跳转";
+"date_jump_view.title.date" = "日期";
+"date_jump_view.footer.seek_around_date" = "跳转到所选日期附近的画廊。";
+"date_jump_view.button.seek_newer" = "跳到较新";
+"date_jump_view.button.seek_older" = "跳到较旧";
 // MARK: JumpPage
 "jump_page_view.title.jump_page" = "页码跳转";
 "jump_page_view.button.confirm" = "确认";

EhPanda/App/zh-Hant-HK.lproj/Localizable.strings

@@ -51,8 +51,15 @@
 // MARK: ToolbarItem
 "toolbar_item.button.filters" = "過濾";
 "toolbar_item.button.jump_page" = "跳到...";
+"toolbar_item.button.date_jump" = "日期跳轉";
 "toolbar_item.button.quick_search" = "快速搜尋";
 
+// MARK: DateJump
+"date_jump_view.title.date_jump" = "日期跳轉";
+"date_jump_view.title.date" = "日期";
+"date_jump_view.footer.seek_around_date" = "跳轉到所選日期附近的畫廊。";
+"date_jump_view.button.seek_newer" = "跳到較新";
+"date_jump_view.button.seek_older" = "跳到較舊";
 // MARK: JumpPage
 "jump_page_view.title.jump_page" = "跳到...";
 "jump_page_view.button.confirm" = "確定";

EhPanda/App/zh-Hant-TW.lproj/Localizable.strings

@@ -51,8 +51,15 @@
 // MARK: ToolbarItem
 "toolbar_item.button.filters" = "過濾";
 "toolbar_item.button.jump_page" = "跳到...";
+"toolbar_item.button.date_jump" = "日期跳轉";
 "toolbar_item.button.quick_search" = "快速搜尋";
 
+// MARK: DateJump
+"date_jump_view.title.date_jump" = "日期跳轉";
+"date_jump_view.title.date" = "日期";
+"date_jump_view.footer.seek_around_date" = "跳轉到所選日期附近的畫廊。";
+"date_jump_view.button.seek_newer" = "跳到較新";
+"date_jump_view.button.seek_older" = "跳到較舊";
 // MARK: JumpPage
 "jump_page_view.title.jump_page" = "跳到...";
 "jump_page_view.button.confirm" = "確定";

EhPanda/App/zh-Hant.lproj/Localizable.strings

@@ -51,8 +51,15 @@
 // MARK: ToolbarItem
 "toolbar_item.button.filters" = "過濾";
 "toolbar_item.button.jump_page" = "跳到...";
+"toolbar_item.button.date_jump" = "日期跳轉";
 "toolbar_item.button.quick_search" = "快速搜尋";
 
+// MARK: DateJump
+"date_jump_view.title.date_jump" = "日期跳轉";
+"date_jump_view.title.date" = "日期";
+"date_jump_view.footer.seek_around_date" = "跳轉到所選日期附近的畫廊。";
+"date_jump_view.button.seek_newer" = "跳到較新";
+"date_jump_view.button.seek_older" = "跳到較舊";
 // MARK: JumpPage
 "jump_page_view.title.jump_page" = "跳到...";
 "jump_page_view.button.confirm" = "確定";

EhPanda/Models/Support/Misc.swift

@@ -10,6 +10,54 @@ import SwiftyBeaver
 typealias Logger = SwiftyBeaver
 typealias FavoritesSortOrder = EhSetting.FavoritesSortOrder
 
+enum PageJumpDirection: Equatable {
+    case newer
+    case older
+}
+
+struct PageJumpNavigation: Equatable {
+    var previousURL: URL?
+    var nextURL: URL?
+    var minimumDate: Date?
+    var maximumDate: Date?
+
+    var isEnabled: Bool {
+        previousURL != nil || nextURL != nil
+    }
+    var dateRange: ClosedRange<Date> {
+        (minimumDate ?? .distantPast)...(maximumDate ?? .distantFuture)
+    }
+
+    func clampedDate(_ date: Date = Date()) -> Date {
+        if let maximumDate, date > maximumDate {
+            return maximumDate
+        }
+        if let minimumDate, date < minimumDate {
+            return minimumDate
+        }
+        return date
+    }
+
+    func seekURL(date: Date, direction: PageJumpDirection) -> URL? {
+        let baseURL: URL?
+        switch direction {
+        case .newer:
+            baseURL = previousURL
+        case .older:
+            baseURL = nextURL
+        }
+        return baseURL?.appending(queryItems: ["seek": Self.dateFormatter.string(from: date)])
+    }
+
+    private static let dateFormatter: DateFormatter = {
+        let formatter = DateFormatter()
+        formatter.dateFormat = "yyyy-MM-dd"
+        formatter.timeZone = TimeZone(secondsFromGMT: 0)
+        formatter.locale = Locale(identifier: "en_US_POSIX")
+        return formatter
+    }()
+}
+
 protocol DateFormattable {
     var originalDate: Date { get }
 }
@@ -29,6 +77,7 @@ struct PageNumber: Equatable {
     var maximum = 0
     var lastItemTimestamp: String?
     var isNextButtonEnabled = false
+    var jumpNavigation: PageJumpNavigation?
 
     var isSinglePage: Bool {
         current == 0 && maximum == 0