// The MIT License (MIT)
//
// Copyright (c) 2019 Joakim Gyllström
//
// 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 Foundation
import Photos

class AssetStore {
    private(set) var assets: [Asset?]
    
    init(assets: [Asset?] = []) {
        self.assets = assets
    }
    
    var count: Int {
        return assets.count
    }
    
    func contains(_ asset: PHAsset) -> Bool {
        return assets.contains(where: { $0 != nil && $0?.asset == asset })
    }
    
    func append(_ asset: PHAsset, _ albumId: String) {
        guard contains(asset) == false else { return }
        assets.append(Asset(albumId: albumId, asset: asset))
    }
    
    func remove(_ asset: PHAsset) {
        guard let index = assets.firstIndex(where: { $0 != nil && $0?.asset == asset }) else { return }
        assets.remove(at: index)
    }
    
    func removeAll() {
        assets.removeAll()
    }
    
    func insert(_ asset: PHAsset, _ albumId: String, at i: Int) {
        guard contains(asset) == false else { return }
        assets.insert(Asset(albumId: albumId, asset: asset), at: i)
    }
}

class Asset {
    var albumId: String
    var asset: PHAsset
    
    init(albumId: String, asset: PHAsset) {
        self.albumId = albumId
        self.asset = asset
    }
}

