//
// Copyright 2022 New Vector Ltd
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//

import Foundation
import UIKit

struct MockMediaProvider: MediaProviderProtocol {
    func loadThumbnailForSource(source: MediaSourceProxy, size: CGSize) async -> Result<Data, MediaProviderError> {
        fatalError("Not implemented")
    }
    
    func imageFromSource(_ source: MediaSourceProxy?, size: CGSize?) -> UIImage? {
        guard source != nil else {
            return nil
        }
        
        if source?.url == .picturesDirectory {
            return Asset.Images.appLogo.image
        }
        
        return UIImage(systemName: "photo")
    }
    
    func loadImageFromSource(_ source: MediaSourceProxy, size: CGSize?) async -> Result<UIImage, MediaProviderError> {
        guard let image = UIImage(systemName: "photo") else {
            fatalError()
        }
        
        return .success(image)
    }
    
    func loadImageDataFromSource(_ source: MediaSourceProxy) async -> Result<Data, MediaProviderError> {
        guard let image = UIImage(systemName: "photo"),
              let data = image.pngData() else {
            fatalError()
        }
        
        return .success(data)
    }
    
    var loadFileFromSourceReturnValue: MediaFileHandleProxy?
    func loadFileFromSource(_ source: MediaSourceProxy, body: String?) async -> Result<MediaFileHandleProxy, MediaProviderError> {
        if let loadFileFromSourceReturnValue {
            return .success(loadFileFromSourceReturnValue)
        }
        return .failure(.failedRetrievingFile)
    }
}
