72 lines
2.4 KiB
Swift
72 lines
2.4 KiB
Swift
//
|
|
// Copyright (c) 2018 Touch Instinct
|
|
//
|
|
// Permission is hereby granted, free of charge, to any person obtaining a copy
|
|
// of this software and associated documentation files (the Software), to deal
|
|
// in the Software without restriction, including without limitation the rights
|
|
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
|
|
// copies of the Software, and to permit persons to whom the Software is
|
|
// furnished to do so, subject to the following conditions:
|
|
//
|
|
// The above copyright notice and this permission notice shall be included in
|
|
// all copies or substantial portions of the Software.
|
|
//
|
|
// THE SOFTWARE IS PROVIDED AS IS, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
|
|
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
|
|
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
|
|
// THE SOFTWARE.
|
|
//
|
|
|
|
import RxSwift
|
|
import RxCocoa
|
|
|
|
open class TotalCountCursor<CursorConfiguration: TotalCountCursorConfiguration>: ResettableRxDataSourceCursor {
|
|
|
|
public typealias Element = CursorConfiguration.ResultType.ElementType
|
|
public typealias ResultType = [Element]
|
|
|
|
private let configuration: CursorConfiguration
|
|
|
|
private var elements: [Element] = []
|
|
|
|
public private(set) var totalCount: Int = .max
|
|
|
|
public var exhausted: Bool {
|
|
count >= totalCount
|
|
}
|
|
|
|
public var count: Int {
|
|
elements.count
|
|
}
|
|
|
|
public subscript(index: Int) -> Element {
|
|
elements[index]
|
|
}
|
|
|
|
public init(configuration: CursorConfiguration) {
|
|
self.configuration = configuration
|
|
}
|
|
|
|
public required init(resetFrom other: TotalCountCursor) {
|
|
configuration = other.configuration.reset()
|
|
}
|
|
|
|
open func processResultFromConfigurationSingle() -> Single<CursorConfiguration.ResultType> {
|
|
configuration.resultSingle()
|
|
}
|
|
|
|
public func loadNextBatch() -> Single<[Element]> {
|
|
processResultFromConfigurationSingle()
|
|
.do(onSuccess: { [weak self] listingResult in
|
|
self?.totalCount = listingResult.totalCount
|
|
self?.elements = (self?.elements ?? []) + listingResult.results
|
|
})
|
|
.map {
|
|
$0.results
|
|
}
|
|
}
|
|
}
|